calculateFragments-methods: Calculate ions produced by fragmentation.

Description Arguments Methods Author(s) Examples

Description

These method calculates a-, b-, c-, x-, y- and z-ions produced by fragmentation.

Arguments

sequence

character, peptide sequence.

object

Object of class "Spectrum2" or "missing" .

tolerance

numeric tolerance between the theoretical and measured MZ values (only available if object is not missing).

method

method used for for duplicated matches. Choose "highest" or "closest" to select the peak with the highest intensity respectively the closest MZ in the tolerance range. If "all" is given all possible matches in the tolerance range are reported (only available if object is not missing).

type

character vector of target ions; possible values: c("a", "b", "c", "x", "y", "z"); default: type=c("b", "y").

z

numeric desired charge state; default z=1.

modifications

named numeric vector of used modifications. The name must correspond to the one-letter-code of the modified amino acid and the numeric value must represent the mass that should be added to the original amino accid mass, default: Carbamidomethyl modifications=c(C=57.02146). Use Nterm or Cterm as names for modifications that should be added to the amino respectively carboxyl-terminus.

neutralLoss

list, it has to have two named elments, namely water and ammonia that contain a character vector which type of neutral loss should be calculated. Currently neutral loss on the C terminal "Cterm", at the amino acids c("D", "E", "S", "T") for "water" (shown with an _) and c("K", "N", "Q", "R") for "ammonia" (shown with an *) are supported.
There is a helper function defaultNeutralLoss that returns the correct list. It has two arguments disableWaterLoss and disableAmmoniaLoss to remove single neutral loss options. See the example section for use cases.

verbose

logical if TRUE (default) the used modifications are printed.

Methods

signature(sequence = "character", object = "missing", ...)

Calculates the theoretical fragments for a peptide sequence. Returns a data.frame with the columns c("mz", "ion", "type", "pos", "z", "seq").

signature(sequence = "character", object = "Spectrum2", ...)

Calculates and matches the theoretical fragments for a peptide sequence and a "Spectrum2" object. The ... arguments are passed to the internal functions. Currently tolerance, method and relative are supported. You could change the tolerance (default 0.1) and decide whether this tolerance should be applied relative to the target m/z (relative = TRUE) or absolute (default relative = FALSE) to match the theoretical fragment MZ with the MZ of the spectrum. When (relative = TRUE) the mass tolerance window is set to target mz +/- (target mz * tolerance) and target mz +/- tolerance otherwise. In cases of multiple matches use method to select the peak with the highest intensity (method = "highest", default) respectively closest MZ (method = "closes"). If method = "all" is set all possible matches in the current tolerance range are reported. Returns the same data.frame as above but the mz column represents the matched MZ values of the spectrum. Additionally there is a column error that contains the difference between the observed MZ (from the spectrum) to the theoretical fragment MZ.

Author(s)

Sebastian Gibb <mail@sebastiangibb.de>

Examples

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## find path to a mzXML file
file <- dir(system.file(package = "MSnbase", dir = "extdata"),
            full.name = TRUE, pattern = "mzXML$")

## create basic MSnExp
msexp <- readMSData(file, centroided = FALSE)

## centroid them
msexp <- pickPeaks(msexp)

## calculate fragments for ACE with default modification
calculateFragments("ACE", modifications=c(C=57.02146))

## calculate fragments for ACE with an addition N-terminal modification
calculateFragments("ACE", modifications=c(C=57.02146, Nterm=229.1629))

## calculate fragments for ACE without any modifications
calculateFragments("ACE", modifications=NULL)

calculateFragments("VESITARHGEVLQLRPK",
                   type=c("a", "b", "c", "x", "y", "z"),
                   z=1:2)

calculateFragments("VESITARHGEVLQLRPK", msexp[[1]])

## neutral loss
defaultNeutralLoss()

## disable water loss on the C terminal
defaultNeutralLoss(disableWaterLoss="Cterm")

## real example
calculateFragments("PQR")
calculateFragments("PQR",
                   neutralLoss=defaultNeutralLoss(disableWaterLoss="Cterm"))
calculateFragments("PQR",
                   neutralLoss=defaultNeutralLoss(disableAmmoniaLoss="Q"))

## disable neutral loss completely
calculateFragments("PQR", neutralLoss=NULL)

Example output

Loading required package: BiocGenerics
Loading required package: parallel

Attaching package:BiocGenericsThe following objects are masked frompackage:parallel:

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked frompackage:stats:

    IQR, mad, sd, var, xtabs

The following objects are masked frompackage:base:

    anyDuplicated, append, as.data.frame, basename, cbind, colnames,
    dirname, do.call, duplicated, eval, evalq, Filter, Find, get, grep,
    grepl, intersect, is.unsorted, lapply, Map, mapply, match, mget,
    order, paste, pmax, pmax.int, pmin, pmin.int, Position, rank,
    rbind, Reduce, rownames, sapply, setdiff, sort, table, tapply,
    union, unique, unsplit, which.max, which.min

Loading required package: Biobase
Welcome to Bioconductor

    Vignettes contain introductory material; view with
    'browseVignettes()'. To cite Bioconductor, see
    'citation("Biobase")', and for packages 'citation("pkgname")'.

Loading required package: mzR
Loading required package: Rcpp
Loading required package: S4Vectors
Loading required package: stats4

Attaching package:S4VectorsThe following object is masked frompackage:base:

    expand.grid

Loading required package: ProtGenerics

Attaching package:ProtGenericsThe following object is masked frompackage:stats:

    smooth


This is MSnbase version 2.16.0 
  Visit https://lgatto.github.io/MSnbase/ to get started.


Attaching package:MSnbaseThe following object is masked frompackage:base:

    trimws

         mz ion type pos z seq
1  72.04439  b1    b   1 1   A
2 232.07504  b2    b   2 1  AC
3 148.06043  y1    y   1 1   E
4 308.09108  y2    y   2 1  CE
5 130.04987 y1_   y_   1 1   E
6 290.08052 y2_   y_   2 1  CE
        mz ion type pos z seq
1 301.2073  b1    b   1 1   A
2 461.2379  b2    b   2 1  AC
3 148.0604  y1    y   1 1   E
4 308.0911  y2    y   2 1  CE
5 130.0499 y1_   y_   1 1   E
6 290.0805 y2_   y_   2 1  CE
         mz ion type pos z seq
1  72.04439  b1    b   1 1   A
2 175.05358  b2    b   2 1  AC
3 148.06043  y1    y   1 1   E
4 251.06962  y2    y   2 1  CE
5 130.04987 y1_   y_   1 1   E
6 233.05906 y2_   y_   2 1  CE
            mz  ion type pos z              seq
1     72.08077   a1    a   1 1                V
2     36.54402   a1    a   1 2                V
3    201.12336   a2    a   2 1               VE
4    101.06532   a2    a   2 2               VE
5    288.15539   a3    a   3 1              VES
6    144.58133   a3    a   3 2              VES
7    401.23945   a4    a   4 1             VESI
8    201.12336   a4    a   4 2             VESI
9    502.28713   a5    a   5 1            VESIT
10   251.64720   a5    a   5 2            VESIT
11   573.32424   a6    a   6 1           VESITA
12   287.16576   a6    a   6 2           VESITA
13   729.42535   a7    a   7 1          VESITAR
14   365.21631   a7    a   7 2          VESITAR
15   866.48426   a8    a   8 1         VESITARH
16   433.74577   a8    a   8 2         VESITARH
17   923.50572   a9    a   9 1        VESITARHG
18   462.25650   a9    a   9 2        VESITARHG
19  1052.54831  a10    a  10 1       VESITARHGE
20   526.77779  a10    a  10 2       VESITARHGE
21  1151.61672  a11    a  11 1      VESITARHGEV
22   576.31200  a11    a  11 2      VESITARHGEV
23  1264.70078  a12    a  12 1     VESITARHGEVL
24   632.85403  a12    a  12 2     VESITARHGEVL
25  1392.75936  a13    a  13 1    VESITARHGEVLQ
26   696.88332  a13    a  13 2    VESITARHGEVLQ
27  1505.84342  a14    a  14 1   VESITARHGEVLQL
28   753.42535  a14    a  14 2   VESITARHGEVLQL
29  1661.94453  a15    a  15 1  VESITARHGEVLQLR
30   831.47590  a15    a  15 2  VESITARHGEVLQLR
31  1758.99729  a16    a  16 1 VESITARHGEVLQLRP
32   880.00228  a16    a  16 2 VESITARHGEVLQLRP
33   100.07569   b1    b   1 1                V
34    50.54148   b1    b   1 2                V
35   229.11828   b2    b   2 1               VE
36   115.06278   b2    b   2 2               VE
37   316.15031   b3    b   3 1              VES
38   158.57879   b3    b   3 2              VES
39   429.23437   b4    b   4 1             VESI
40   215.12082   b4    b   4 2             VESI
41   530.28205   b5    b   5 1            VESIT
42   265.64466   b5    b   5 2            VESIT
43   601.31916   b6    b   6 1           VESITA
44   301.16322   b6    b   6 2           VESITA
45   757.42027   b7    b   7 1          VESITAR
46   379.21377   b7    b   7 2          VESITAR
47   894.47918   b8    b   8 1         VESITARH
48   447.74323   b8    b   8 2         VESITARH
49   951.50064   b9    b   9 1        VESITARHG
50   476.25396   b9    b   9 2        VESITARHG
51  1080.54323  b10    b  10 1       VESITARHGE
52   540.77525  b10    b  10 2       VESITARHGE
53  1179.61164  b11    b  11 1      VESITARHGEV
54   590.30946  b11    b  11 2      VESITARHGEV
55  1292.69570  b12    b  12 1     VESITARHGEVL
56   646.85149  b12    b  12 2     VESITARHGEVL
57  1420.75428  b13    b  13 1    VESITARHGEVLQ
58   710.88078  b13    b  13 2    VESITARHGEVLQ
59  1533.83834  b14    b  14 1   VESITARHGEVLQL
60   767.42281  b14    b  14 2   VESITARHGEVLQL
61  1689.93945  b15    b  15 1  VESITARHGEVLQLR
62   845.47336  b15    b  15 2  VESITARHGEVLQLR
63  1786.99221  b16    b  16 1 VESITARHGEVLQLRP
64   893.99974  b16    b  16 2 VESITARHGEVLQLRP
65   117.10224   c1    c   1 1                V
66    59.05476   c1    c   1 2                V
67   246.14482   c2    c   2 1               VE
68   123.57605   c2    c   2 2               VE
69   333.17685   c3    c   3 1              VES
70   167.09207   c3    c   3 2              VES
71   446.26091   c4    c   4 1             VESI
72   223.63410   c4    c   4 2             VESI
73   547.30860   c5    c   5 1            VESIT
74   274.15794   c5    c   5 2            VESIT
75   618.34571   c6    c   6 1           VESITA
76   309.67649   c6    c   6 2           VESITA
77   774.44682   c7    c   7 1          VESITAR
78   387.72705   c7    c   7 2          VESITAR
79   911.50573   c8    c   8 1         VESITARH
80   456.25650   c8    c   8 2         VESITARH
81   968.52719   c9    c   9 1        VESITARHG
82   484.76723   c9    c   9 2        VESITARHG
83  1097.56977  c10    c  10 1       VESITARHGE
84   549.28853  c10    c  10 2       VESITARHGE
85  1196.63819  c11    c  11 1      VESITARHGEV
86   598.82273  c11    c  11 2      VESITARHGEV
87  1309.72224  c12    c  12 1     VESITARHGEVL
88   655.36476  c12    c  12 2     VESITARHGEVL
89  1437.78083  c13    c  13 1    VESITARHGEVLQ
90   719.39405  c13    c  13 2    VESITARHGEVLQ
91  1550.86488  c14    c  14 1   VESITARHGEVLQL
92   775.93608  c14    c  14 2   VESITARHGEVLQL
93  1706.96600  c15    c  15 1  VESITARHGEVLQLR
94   853.98664  c15    c  15 2  VESITARHGEVLQLR
95  1804.01876  c16    c  16 1 VESITARHGEVLQLRP
96   902.51302  c16    c  16 2 VESITARHGEVLQLRP
97   173.09207   x1    x   1 1                K
98    87.04967   x1    x   1 2                K
99   270.14483   x2    x   2 1               PK
100  135.57605   x2    x   2 2               PK
101  426.24594   x3    x   3 1              RPK
102  213.62661   x3    x   3 2              RPK
103  539.33000   x4    x   4 1             LRPK
104  270.16864   x4    x   4 2             LRPK
105  667.38858   x5    x   5 1            QLRPK
106  334.19793   x5    x   5 2            QLRPK
107  780.47264   x6    x   6 1           LQLRPK
108  390.73996   x6    x   6 2           LQLRPK
109  879.54105   x7    x   7 1          VLQLRPK
110  440.27416   x7    x   7 2          VLQLRPK
111 1008.58364   x8    x   8 1         EVLQLRPK
112  504.79546   x8    x   8 2         EVLQLRPK
113 1065.60510   x9    x   9 1        GEVLQLRPK
114  533.30619   x9    x   9 2        GEVLQLRPK
115 1202.66401  x10    x  10 1       HGEVLQLRPK
116  601.83564  x10    x  10 2       HGEVLQLRPK
117 1358.76512  x11    x  11 1      RHGEVLQLRPK
118  679.88620  x11    x  11 2      RHGEVLQLRPK
119 1429.80223  x12    x  12 1     ARHGEVLQLRPK
120  715.40475  x12    x  12 2     ARHGEVLQLRPK
121 1530.84991  x13    x  13 1    TARHGEVLQLRPK
122  765.92859  x13    x  13 2    TARHGEVLQLRPK
123 1643.93397  x14    x  14 1   ITARHGEVLQLRPK
124  822.47062  x14    x  14 2   ITARHGEVLQLRPK
125 1730.96600  x15    x  15 1  SITARHGEVLQLRPK
126  865.98664  x15    x  15 2  SITARHGEVLQLRPK
127 1860.00859  x16    x  16 1 ESITARHGEVLQLRPK
128  930.50793  x16    x  16 2 ESITARHGEVLQLRPK
129  147.11280   y1    y   1 1                K
130   74.06004   y1    y   1 2                K
131  244.16556   y2    y   2 1               PK
132  122.58642   y2    y   2 2               PK
133  400.26667   y3    y   3 1              RPK
134  200.63697   y3    y   3 2              RPK
135  513.35073   y4    y   4 1             LRPK
136  257.17900   y4    y   4 2             LRPK
137  641.40931   y5    y   5 1            QLRPK
138  321.20829   y5    y   5 2            QLRPK
139  754.49337   y6    y   6 1           LQLRPK
140  377.75032   y6    y   6 2           LQLRPK
141  853.56178   y7    y   7 1          VLQLRPK
142  427.28453   y7    y   7 2          VLQLRPK
143  982.60437   y8    y   8 1         EVLQLRPK
144  491.80582   y8    y   8 2         EVLQLRPK
145 1039.62583   y9    y   9 1        GEVLQLRPK
146  520.31655   y9    y   9 2        GEVLQLRPK
147 1176.68474  y10    y  10 1       HGEVLQLRPK
148  588.84601  y10    y  10 2       HGEVLQLRPK
149 1332.78585  y11    y  11 1      RHGEVLQLRPK
150  666.89656  y11    y  11 2      RHGEVLQLRPK
151 1403.82296  y12    y  12 1     ARHGEVLQLRPK
152  702.41512  y12    y  12 2     ARHGEVLQLRPK
153 1504.87064  y13    y  13 1    TARHGEVLQLRPK
154  752.93896  y13    y  13 2    TARHGEVLQLRPK
155 1617.95470  y14    y  14 1   ITARHGEVLQLRPK
156  809.48099  y14    y  14 2   ITARHGEVLQLRPK
157 1704.98673  y15    y  15 1  SITARHGEVLQLRPK
158  852.99700  y15    y  15 2  SITARHGEVLQLRPK
159 1834.02932  y16    y  16 1 ESITARHGEVLQLRPK
160  917.51830  y16    y  16 2 ESITARHGEVLQLRPK
161  130.08625   z1    z   1 1                K
162   65.54676   z1    z   1 2                K
163  227.13901   z2    z   2 1               PK
164  114.07314   z2    z   2 2               PK
165  383.24012   z3    z   3 1              RPK
166  192.12370   z3    z   3 2              RPK
167  496.32418   z4    z   4 1             LRPK
168  248.66573   z4    z   4 2             LRPK
169  624.38276   z5    z   5 1            QLRPK
170  312.69502   z5    z   5 2            QLRPK
171  737.46682   z6    z   6 1           LQLRPK
172  369.23705   z6    z   6 2           LQLRPK
173  836.53523   z7    z   7 1          VLQLRPK
174  418.77125   z7    z   7 2          VLQLRPK
175  965.57782   z8    z   8 1         EVLQLRPK
176  483.29255   z8    z   8 2         EVLQLRPK
177 1022.59928   z9    z   9 1        GEVLQLRPK
178  511.80328   z9    z   9 2        GEVLQLRPK
179 1159.65819  z10    z  10 1       HGEVLQLRPK
180  580.33273  z10    z  10 2       HGEVLQLRPK
181 1315.75930  z11    z  11 1      RHGEVLQLRPK
182  658.38329  z11    z  11 2      RHGEVLQLRPK
183 1386.79641  z12    z  12 1     ARHGEVLQLRPK
184  693.90184  z12    z  12 2     ARHGEVLQLRPK
185 1487.84409  z13    z  13 1    TARHGEVLQLRPK
186  744.42568  z13    z  13 2    TARHGEVLQLRPK
187 1600.92815  z14    z  14 1   ITARHGEVLQLRPK
188  800.96771  z14    z  14 2   ITARHGEVLQLRPK
189 1687.96018  z15    z  15 1  SITARHGEVLQLRPK
190  844.48373  z15    z  15 2  SITARHGEVLQLRPK
191 1817.00277  z16    z  16 1 ESITARHGEVLQLRPK
192  909.00502  z16    z  16 2 ESITARHGEVLQLRPK
193  383.22889  a4_   a_   4 1             VESI
194  183.11280  a4_   a_   4 2             VESI
195  484.27657  a5_   a_   5 1            VESIT
196  233.63664  a5_   a_   5 2            VESIT
197  555.31368  a6_   a_   6 1           VESITA
198  269.15519  a6_   a_   6 2           VESITA
199  711.41479  a7_   a_   7 1          VESITAR
200  347.20575  a7_   a_   7 2          VESITAR
201  848.47370  a8_   a_   8 1         VESITARH
202  415.73520  a8_   a_   8 2         VESITARH
203  905.49516  a9_   a_   9 1        VESITARHG
204  444.24593  a9_   a_   9 2        VESITARHG
205 1034.53775 a10_   a_  10 1       VESITARHGE
206  508.76723 a10_   a_  10 2       VESITARHGE
207 1133.60616 a11_   a_  11 1      VESITARHGEV
208  558.30143 a11_   a_  11 2      VESITARHGEV
209 1246.69022 a12_   a_  12 1     VESITARHGEVL
210  614.84346 a12_   a_  12 2     VESITARHGEVL
211 1374.74880 a13_   a_  13 1    VESITARHGEVLQ
212  678.87275 a13_   a_  13 2    VESITARHGEVLQ
213 1487.83286 a14_   a_  14 1   VESITARHGEVLQL
214  735.41478 a14_   a_  14 2   VESITARHGEVLQL
215 1643.93397 a15_   a_  15 1  VESITARHGEVLQLR
216  813.46534 a15_   a_  15 2  VESITARHGEVLQLR
217 1740.98673 a16_   a_  16 1 VESITARHGEVLQLRP
218  861.99172 a16_   a_  16 2 VESITARHGEVLQLRP
219  411.22380  b4_   b_   4 1             VESI
220  197.11026  b4_   b_   4 2             VESI
221  512.27148  b5_   b_   5 1            VESIT
222  247.63410  b5_   b_   5 2            VESIT
223  583.30859  b6_   b_   6 1           VESITA
224  283.15265  b6_   b_   6 2           VESITA
225  739.40970  b7_   b_   7 1          VESITAR
226  361.20321  b7_   b_   7 2          VESITAR
227  876.46861  b8_   b_   8 1         VESITARH
228  429.73266  b8_   b_   8 2         VESITARH
229  933.49007  b9_   b_   9 1        VESITARHG
230  458.24339  b9_   b_   9 2        VESITARHG
231 1062.53266 b10_   b_  10 1       VESITARHGE
232  522.76469 b10_   b_  10 2       VESITARHGE
233 1161.60107 b11_   b_  11 1      VESITARHGEV
234  572.29889 b11_   b_  11 2      VESITARHGEV
235 1274.68513 b12_   b_  12 1     VESITARHGEVL
236  628.84092 b12_   b_  12 2     VESITARHGEVL
237 1402.74371 b13_   b_  13 1    VESITARHGEVLQ
238  692.87021 b13_   b_  13 2    VESITARHGEVLQ
239 1515.82777 b14_   b_  14 1   VESITARHGEVLQL
240  749.41224 b14_   b_  14 2   VESITARHGEVLQL
241 1671.92888 b15_   b_  15 1  VESITARHGEVLQLR
242  827.46280 b15_   b_  15 2  VESITARHGEVLQLR
243 1768.98164 b16_   b_  16 1 VESITARHGEVLQLRP
244  875.98918 b16_   b_  16 2 VESITARHGEVLQLRP
245  428.25035  c4_   c_   4 1             VESI
246  205.62353  c4_   c_   4 2             VESI
247  529.29803  c5_   c_   5 1            VESIT
248  256.14737  c5_   c_   5 2            VESIT
249  600.33514  c6_   c_   6 1           VESITA
250  291.66593  c6_   c_   6 2           VESITA
251  756.43625  c7_   c_   7 1          VESITAR
252  369.71648  c7_   c_   7 2          VESITAR
253  893.49516  c8_   c_   8 1         VESITARH
254  438.24594  c8_   c_   8 2         VESITARH
255  950.51662  c9_   c_   9 1        VESITARHG
256  466.75667  c9_   c_   9 2        VESITARHG
257 1079.55921 c10_   c_  10 1       VESITARHGE
258  531.27796 c10_   c_  10 2       VESITARHGE
259 1178.62762 c11_   c_  11 1      VESITARHGEV
260  580.81217 c11_   c_  11 2      VESITARHGEV
261 1291.71168 c12_   c_  12 1     VESITARHGEVL
262  637.35420 c12_   c_  12 2     VESITARHGEVL
263 1419.77026 c13_   c_  13 1    VESITARHGEVLQ
264  701.38349 c13_   c_  13 2    VESITARHGEVLQ
265 1532.85432 c14_   c_  14 1   VESITARHGEVLQL
266  757.92552 c14_   c_  14 2   VESITARHGEVLQL
267 1688.95543 c15_   c_  15 1  VESITARHGEVLQLR
268  835.97607 c15_   c_  15 2  VESITARHGEVLQLR
269 1786.00819 c16_   c_  16 1 VESITARHGEVLQLRP
270  884.50245 c16_   c_  16 2 VESITARHGEVLQLRP
271  990.57307  x8_   x_   8 1         EVLQLRPK
272  486.78489  x8_   x_   8 2         EVLQLRPK
273 1625.92340 x14_   x_  14 1   ITARHGEVLQLRPK
274  804.46006 x14_   x_  14 2   ITARHGEVLQLRPK
275 1712.95543 x15_   x_  15 1  SITARHGEVLQLRPK
276  847.97607 x15_   x_  15 2  SITARHGEVLQLRPK
277 1841.99802 x16_   x_  16 1 ESITARHGEVLQLRPK
278  912.49737 x16_   x_  16 2 ESITARHGEVLQLRPK
279  964.59381  y8_   y_   8 1         EVLQLRPK
280  473.79526  y8_   y_   8 2         EVLQLRPK
281 1599.94414 y14_   y_  14 1   ITARHGEVLQLRPK
282  791.47042 y14_   y_  14 2   ITARHGEVLQLRPK
283 1686.97617 y15_   y_  15 1  SITARHGEVLQLRPK
284  834.98644 y15_   y_  15 2  SITARHGEVLQLRPK
285 1816.01876 y16_   y_  16 1 ESITARHGEVLQLRPK
286  899.50773 y16_   y_  16 2 ESITARHGEVLQLRPK
287  947.56726  z8_   z_   8 1         EVLQLRPK
288  465.28198  z8_   z_   8 2         EVLQLRPK
289 1582.91759 z14_   z_  14 1   ITARHGEVLQLRPK
290  782.95715 z14_   z_  14 2   ITARHGEVLQLRPK
291 1669.94962 z15_   z_  15 1  SITARHGEVLQLRPK
292  826.47316 z15_   z_  15 2  SITARHGEVLQLRPK
293 1798.99221 z16_   z_  16 1 ESITARHGEVLQLRPK
294  890.99446 z16_   z_  16 2 ESITARHGEVLQLRPK
295  155.08150  x1_   x_   1 1                K
296   69.03911  x1_   x_   1 2                K
297  252.13426  x2_   x_   2 1               PK
298  117.56549  x2_   x_   2 2               PK
299  408.23537  x3_   x_   3 1              RPK
300  195.61604  x3_   x_   3 2              RPK
301  521.31943  x4_   x_   4 1             LRPK
302  252.15807  x4_   x_   4 2             LRPK
303  649.37801  x5_   x_   5 1            QLRPK
304  316.18736  x5_   x_   5 2            QLRPK
305  762.46207  x6_   x_   6 1           LQLRPK
306  372.72939  x6_   x_   6 2           LQLRPK
307  861.53048  x7_   x_   7 1          VLQLRPK
308  422.26360  x7_   x_   7 2          VLQLRPK
309 1047.59453  x9_   x_   9 1        GEVLQLRPK
310  515.29562  x9_   x_   9 2        GEVLQLRPK
311 1184.65344 x10_   x_  10 1       HGEVLQLRPK
312  583.82508 x10_   x_  10 2       HGEVLQLRPK
313 1340.75455 x11_   x_  11 1      RHGEVLQLRPK
314  661.87563 x11_   x_  11 2      RHGEVLQLRPK
315 1411.79166 x12_   x_  12 1     ARHGEVLQLRPK
316  697.39419 x12_   x_  12 2     ARHGEVLQLRPK
317 1512.83934 x13_   x_  13 1    TARHGEVLQLRPK
318  747.91803 x13_   x_  13 2    TARHGEVLQLRPK
319  129.10224  y1_   y_   1 1                K
320   56.04947  y1_   y_   1 2                K
321  226.15500  y2_   y_   2 1               PK
322  104.57585  y2_   y_   2 2               PK
323  382.25611  y3_   y_   3 1              RPK
324  182.62641  y3_   y_   3 2              RPK
325  495.34017  y4_   y_   4 1             LRPK
326  239.16844  y4_   y_   4 2             LRPK
327  623.39875  y5_   y_   5 1            QLRPK
328  303.19773  y5_   y_   5 2            QLRPK
329  736.48281  y6_   y_   6 1           LQLRPK
330  359.73976  y6_   y_   6 2           LQLRPK
331  835.55122  y7_   y_   7 1          VLQLRPK
332  409.27396  y7_   y_   7 2          VLQLRPK
333 1021.61527  y9_   y_   9 1        GEVLQLRPK
334  502.30599  y9_   y_   9 2        GEVLQLRPK
335 1158.67418 y10_   y_  10 1       HGEVLQLRPK
336  570.83544 y10_   y_  10 2       HGEVLQLRPK
337 1314.77529 y11_   y_  11 1      RHGEVLQLRPK
338  648.88600 y11_   y_  11 2      RHGEVLQLRPK
339 1385.81240 y12_   y_  12 1     ARHGEVLQLRPK
340  684.40455 y12_   y_  12 2     ARHGEVLQLRPK
341 1486.86008 y13_   y_  13 1    TARHGEVLQLRPK
342  734.92839 y13_   y_  13 2    TARHGEVLQLRPK
343  112.07569  z1_   z_   1 1                K
344   47.53620  z1_   z_   1 2                K
345  209.12845  z2_   z_   2 1               PK
346   96.06258  z2_   z_   2 2               PK
347  365.22956  z3_   z_   3 1              RPK
348  174.11313  z3_   z_   3 2              RPK
349  478.31362  z4_   z_   4 1             LRPK
350  230.65516  z4_   z_   4 2             LRPK
351  606.37220  z5_   z_   5 1            QLRPK
352  294.68445  z5_   z_   5 2            QLRPK
353  719.45626  z6_   z_   6 1           LQLRPK
354  351.22648  z6_   z_   6 2           LQLRPK
355  818.52467  z7_   z_   7 1          VLQLRPK
356  400.76069  z7_   z_   7 2          VLQLRPK
357 1004.58872  z9_   z_   9 1        GEVLQLRPK
358  493.79271  z9_   z_   9 2        GEVLQLRPK
359 1141.64763 z10_   z_  10 1       HGEVLQLRPK
360  562.32217 z10_   z_  10 2       HGEVLQLRPK
361 1297.74874 z11_   z_  11 1      RHGEVLQLRPK
362  640.37272 z11_   z_  11 2      RHGEVLQLRPK
363 1368.78585 z12_   z_  12 1     ARHGEVLQLRPK
364  675.89128 z12_   z_  12 2     ARHGEVLQLRPK
365 1469.83353 z13_   z_  13 1    TARHGEVLQLRPK
366  726.41512 z13_   z_  13 2    TARHGEVLQLRPK
367  849.45771  a8*   a*   8 1         VESITARH
368  416.71922  a8*   a*   8 2         VESITARH
369  906.47917  a9*   a*   9 1        VESITARHG
370  445.22995  a9*   a*   9 2        VESITARHG
371 1035.52176 a10*   a*  10 1       VESITARHGE
372  509.75124 a10*   a*  10 2       VESITARHGE
373 1134.59017 a11*   a*  11 1      VESITARHGEV
374  559.28545 a11*   a*  11 2      VESITARHGEV
375 1247.67423 a12*   a*  12 1     VESITARHGEVL
376  615.82748 a12*   a*  12 2     VESITARHGEVL
377 1375.73281 a13*   a*  13 1    VESITARHGEVLQ
378  679.85677 a13*   a*  13 2    VESITARHGEVLQ
379 1488.81687 a14*   a*  14 1   VESITARHGEVLQL
380  736.39880 a14*   a*  14 2   VESITARHGEVLQL
381 1644.91798 a15*   a*  15 1  VESITARHGEVLQLR
382  814.44935 a15*   a*  15 2  VESITARHGEVLQLR
383 1741.97074 a16*   a*  16 1 VESITARHGEVLQLRP
384  862.97573 a16*   a*  16 2 VESITARHGEVLQLRP
385  877.45263  b8*   b*   8 1         VESITARH
386  430.71668  b8*   b*   8 2         VESITARH
387  934.47409  b9*   b*   9 1        VESITARHG
388  459.22741  b9*   b*   9 2        VESITARHG
389 1063.51668 b10*   b*  10 1       VESITARHGE
390  523.74870 b10*   b*  10 2       VESITARHGE
391 1162.58509 b11*   b*  11 1      VESITARHGEV
392  573.28291 b11*   b*  11 2      VESITARHGEV
393 1275.66915 b12*   b*  12 1     VESITARHGEVL
394  629.82494 b12*   b*  12 2     VESITARHGEVL
395 1403.72773 b13*   b*  13 1    VESITARHGEVLQ
396  693.85423 b13*   b*  13 2    VESITARHGEVLQ
397 1516.81179 b14*   b*  14 1   VESITARHGEVLQL
398  750.39626 b14*   b*  14 2   VESITARHGEVLQL
399 1672.91290 b15*   b*  15 1  VESITARHGEVLQLR
400  828.44681 b15*   b*  15 2  VESITARHGEVLQLR
401 1769.96566 b16*   b*  16 1 VESITARHGEVLQLRP
402  876.97319 b16*   b*  16 2 VESITARHGEVLQLRP
403  894.47918  c8*   c*   8 1         VESITARH
404  439.22995  c8*   c*   8 2         VESITARH
405  951.50064  c9*   c*   9 1        VESITARHG
406  467.74068  c9*   c*   9 2        VESITARHG
407 1080.54323 c10*   c*  10 1       VESITARHGE
408  532.26198 c10*   c*  10 2       VESITARHGE
409 1179.61164 c11*   c*  11 1      VESITARHGEV
410  581.79618 c11*   c*  11 2      VESITARHGEV
411 1292.69570 c12*   c*  12 1     VESITARHGEVL
412  638.33821 c12*   c*  12 2     VESITARHGEVL
413 1420.75428 c13*   c*  13 1    VESITARHGEVLQ
414  702.36750 c13*   c*  13 2    VESITARHGEVLQ
415 1533.83834 c14*   c*  14 1   VESITARHGEVLQL
416  758.90953 c14*   c*  14 2   VESITARHGEVLQL
417 1689.93945 c15*   c*  15 1  VESITARHGEVLQLR
418  836.96009 c15*   c*  15 2  VESITARHGEVLQLR
419 1786.99221 c16*   c*  16 1 VESITARHGEVLQLRP
420  885.48647 c16*   c*  16 2 VESITARHGEVLQLRP
421  522.30345  x4*   x*   4 1             LRPK
422  253.14209  x4*   x*   4 2             LRPK
423  650.36203  x5*   x*   5 1            QLRPK
424  317.17138  x5*   x*   5 2            QLRPK
425  763.44609  x6*   x*   6 1           LQLRPK
426  373.71341  x6*   x*   6 2           LQLRPK
427  862.51450  x7*   x*   7 1          VLQLRPK
428  423.24761  x7*   x*   7 2          VLQLRPK
429  991.55709  x8*   x*   8 1         EVLQLRPK
430  487.76891  x8*   x*   8 2         EVLQLRPK
431 1048.57855  x9*   x*   9 1        GEVLQLRPK
432  516.27964  x9*   x*   9 2        GEVLQLRPK
433 1185.63746 x10*   x*  10 1       HGEVLQLRPK
434  584.80909 x10*   x*  10 2       HGEVLQLRPK
435 1341.73857 x11*   x*  11 1      RHGEVLQLRPK
436  662.85965 x11*   x*  11 2      RHGEVLQLRPK
437 1412.77568 x12*   x*  12 1     ARHGEVLQLRPK
438  698.37820 x12*   x*  12 2     ARHGEVLQLRPK
439 1513.82336 x13*   x*  13 1    TARHGEVLQLRPK
440  748.90204 x13*   x*  13 2    TARHGEVLQLRPK
441 1626.90742 x14*   x*  14 1   ITARHGEVLQLRPK
442  805.44407 x14*   x*  14 2   ITARHGEVLQLRPK
443 1713.93945 x15*   x*  15 1  SITARHGEVLQLRPK
444  848.96009 x15*   x*  15 2  SITARHGEVLQLRPK
445 1842.98204 x16*   x*  16 1 ESITARHGEVLQLRPK
446  913.48138 x16*   x*  16 2 ESITARHGEVLQLRPK
447  496.32418  y4*   y*   4 1             LRPK
448  240.15245  y4*   y*   4 2             LRPK
449  624.38276  y5*   y*   5 1            QLRPK
450  304.18174  y5*   y*   5 2            QLRPK
451  737.46682  y6*   y*   6 1           LQLRPK
452  360.72377  y6*   y*   6 2           LQLRPK
453  836.53523  y7*   y*   7 1          VLQLRPK
454  410.25798  y7*   y*   7 2          VLQLRPK
455  965.57782  y8*   y*   8 1         EVLQLRPK
456  474.77927  y8*   y*   8 2         EVLQLRPK
457 1022.59928  y9*   y*   9 1        GEVLQLRPK
458  503.29000  y9*   y*   9 2        GEVLQLRPK
459 1159.65819 y10*   y*  10 1       HGEVLQLRPK
460  571.81946 y10*   y*  10 2       HGEVLQLRPK
461 1315.75930 y11*   y*  11 1      RHGEVLQLRPK
462  649.87001 y11*   y*  11 2      RHGEVLQLRPK
463 1386.79641 y12*   y*  12 1     ARHGEVLQLRPK
464  685.38857 y12*   y*  12 2     ARHGEVLQLRPK
465 1487.84409 y13*   y*  13 1    TARHGEVLQLRPK
466  735.91241 y13*   y*  13 2    TARHGEVLQLRPK
467 1600.92815 y14*   y*  14 1   ITARHGEVLQLRPK
468  792.45444 y14*   y*  14 2   ITARHGEVLQLRPK
469 1687.96018 y15*   y*  15 1  SITARHGEVLQLRPK
470  835.97045 y15*   y*  15 2  SITARHGEVLQLRPK
471 1817.00277 y16*   y*  16 1 ESITARHGEVLQLRPK
472  900.49175 y16*   y*  16 2 ESITARHGEVLQLRPK
473  479.29763  z4*   z*   4 1             LRPK
474  231.63918  z4*   z*   4 2             LRPK
475  607.35621  z5*   z*   5 1            QLRPK
476  295.66847  z5*   z*   5 2            QLRPK
477  720.44027  z6*   z*   6 1           LQLRPK
478  352.21050  z6*   z*   6 2           LQLRPK
479  819.50868  z7*   z*   7 1          VLQLRPK
480  401.74471  z7*   z*   7 2          VLQLRPK
481  948.55127  z8*   z*   8 1         EVLQLRPK
482  466.26600  z8*   z*   8 2         EVLQLRPK
483 1005.57273  z9*   z*   9 1        GEVLQLRPK
484  494.77673  z9*   z*   9 2        GEVLQLRPK
485 1142.63164 z10*   z*  10 1       HGEVLQLRPK
486  563.30619 z10*   z*  10 2       HGEVLQLRPK
487 1298.73275 z11*   z*  11 1      RHGEVLQLRPK
488  641.35674 z11*   z*  11 2      RHGEVLQLRPK
489 1369.76986 z12*   z*  12 1     ARHGEVLQLRPK
490  676.87530 z12*   z*  12 2     ARHGEVLQLRPK
491 1470.81754 z13*   z*  13 1    TARHGEVLQLRPK
492  727.39914 z13*   z*  13 2    TARHGEVLQLRPK
493 1583.90160 z14*   z*  14 1   ITARHGEVLQLRPK
494  783.94117 z14*   z*  14 2   ITARHGEVLQLRPK
495 1670.93363 z15*   z*  15 1  SITARHGEVLQLRPK
496  827.45718 z15*   z*  15 2  SITARHGEVLQLRPK
497 1799.97622 z16*   z*  16 1 ESITARHGEVLQLRPK
498  891.97848 z16*   z*  16 2 ESITARHGEVLQLRPK
         mz intensity  ion type pos z             seq       error
1  429.2563 1972344.0   b4    b   4 1            VESI -0.02189010
2  512.3044  684918.0  b5_   b_   5 1           VESIT -0.03290132
3  513.3047 2574137.0   y4    y   4 1            LRPK  0.04598246
4  583.3300 1440833.8  b6_   b_   6 1          VESITA -0.02142609
5  754.4504  537234.8   y6    y   6 1          LQLRPK  0.04293155
6  982.5354  500159.1   y8    y   8 1        EVLQLRPK  0.06897061
7 1080.5867  209363.7  b10    b  10 1      VESITARHGE -0.04344392
8 1688.0375  136748.8 y15*   y*  15 1 SITARHGEVLQLRPK -0.07729359
$water
[1] "Cterm" "D"     "E"     "S"     "T"    

$ammonia
[1] "K" "N" "Q" "R"

$water
[1] "D" "E" "S" "T"

$ammonia
[1] "K" "N" "Q" "R"

         mz ion type pos z seq
1  98.06004  b1    b   1 1   P
2 226.11862  b2    b   2 1  PQ
3 175.11895  y1    y   1 1   R
4 303.17753  y2    y   2 1  QR
5 157.10839 y1_   y_   1 1   R
6 285.16697 y2_   y_   2 1  QR
7 286.15098 y2*   y*   2 1  QR
         mz ion type pos z seq
1  98.06004  b1    b   1 1   P
2 226.11862  b2    b   2 1  PQ
3 175.11895  y1    y   1 1   R
4 303.17753  y2    y   2 1  QR
5 286.15098 y2*   y*   2 1  QR
         mz ion type pos z seq
1  98.06004  b1    b   1 1   P
2 226.11862  b2    b   2 1  PQ
3 175.11895  y1    y   1 1   R
4 303.17753  y2    y   2 1  QR
5 157.10839 y1_   y_   1 1   R
6 285.16697 y2_   y_   2 1  QR
         mz ion type pos z seq
1  98.06004  b1    b   1 1   P
2 226.11862  b2    b   2 1  PQ
3 175.11895  y1    y   1 1   R
4 303.17753  y2    y   2 1  QR

MSnbase documentation built on Jan. 23, 2021, 2 a.m.