addGeneIDs: Add common IDs to annotated peaks such as gene symbol, entrez...
In ChIPpeakAnno: Batch annotation of the peaks identified from either ChIP-seq, ChIP-chip experiments or any experiments resulted in large number of chromosome ranges

Description Usage Arguments Details Value Author(s) References See Also Examples

Add common IDs to annotated peaks such as gene symbol, entrez ID, ensemble gene id and refseq id leveraging organism annotation dataset. For example, org.Hs.eg.db is the dataset from orgs.Hs.eg.db package for human, while org.Mm.eg.db is the dataset from the org.Mm.eg.db package for mouse.

addGeneIDs(
  annotatedPeak,
  orgAnn,
  IDs2Add = c("symbol"),
  feature_id_type = "ensembl_gene_id",
  silence = TRUE,
  mart
)

`annotatedPeak`	GRanges or a vector of feature IDs.
`orgAnn`	organism annotation dataset such as org.Hs.eg.db.
`IDs2Add`	a vector of annotation identifiers to be added
`feature_id_type`	type of ID to be annotated, default is ensembl_gene_id
`silence`	TRUE or FALSE. If TRUE, will not show unmapped entrez id for feature ids.
`mart`	mart object, see useMart of biomaRt package for details

One of orgAnn and mart should be assigned.

If orgAnn is given, parameter feature_id_type should be ensemble_gene_id, entrez_id, gene_symbol, gene_alias or refseq_id. And parameter IDs2Add can be set to any combination of identifiers such as "accnum", "ensembl", "ensemblprot", "ensembltrans", "entrez_id", "enzyme", "genename", "pfam", "pmid", "prosite", "refseq", "symbol", "unigene" and "uniprot". Some IDs are unique to an organism, such as "omim" for org.Hs.eg.db and "mgi" for org.Mm.eg.db.

Here is the definition of different IDs :
- accnum: GenBank accession numbers
- ensembl: Ensembl gene accession numbers
- ensemblprot: Ensembl protein accession numbers
- ensembltrans: Ensembl transcript accession numbers
- entrez_id: entrez gene identifiers
- enzyme: EC numbers
- genename: gene name
- pfam: Pfam identifiers
- pmid: PubMed identifiers
- prosite: PROSITE identifiers
- refseq: RefSeq identifiers
- symbol: gene abbreviations
- unigene: UniGene cluster identifiers
- uniprot: Uniprot accession numbers
- omim: OMIM(Mendelian Inheritance in Man) identifiers
- mgi: Jackson Laboratory MGI gene accession numbers
If mart is used instead of orgAnn, for valid parameter feature_id_type and IDs2Add parameters, please refer to getBM in bioMart package. Parameter feature_id_type should be one valid filter name listed by listFilters(mart) such as ensemble_gene_id. And parameter IDs2Add should be one or more valid attributes name listed by listAttributes(mart) such as external_gene_id, entrezgene, wikigene_name, or mirbase_transcript_name.

GRanges if the input is a GRanges or dataframe if input is a vector.

Jianhong Ou, Lihua Julie Zhu

http://www.bioconductor.org/packages/release/data/annotation/

getBM, AnnotationDb

data(annotatedPeak)
library(org.Hs.eg.db)
addGeneIDs(annotatedPeak[1:6,],orgAnn="org.Hs.eg.db",
           IDs2Add=c("symbol","omim"))
##addGeneIDs(annotatedPeak$feature[1:6],orgAnn="org.Hs.eg.db",
##           IDs2Add=c("symbol","genename"))
if(interactive()){
  mart <- useMart("ENSEMBL_MART_ENSEMBL",host="www.ensembl.org",
                  dataset="hsapiens_gene_ensembl")
  ##mart <- useMart(biomart="ensembl",dataset="hsapiens_gene_ensembl")
  addGeneIDs(annotatedPeak[1:6,], mart=mart,
             IDs2Add=c("hgnc_symbol","entrezgene"))
}