LymphoSeqDB: LymphoSeq annotation databases

#' Prevalence of T cell receptor beta CDR3 amino acid sequences
#'
#' A database of unique productive T cell receptor beta CDR3 amino acid
#' sequences from the peripheral blood of 55 healthy individuals, age range
#' 0-90 years.
#'
#' @format A dataframe with 11,724,292 rows and 2 columns.  The first column
#' corresponds to T cell receptor beta CDR3 amino acid sequences.  The second
#' column corresponds to the \% frequency that the sequence appeared within the
#' peripheral blood of 55 healthy individuals.
#' @source Sequencing from 39 individuals, age ranging from 0-90 years, was
#' obtained from Britanova, O. V. et al. The Journal of Immunology 2014; 192:
#' 2689-2698 (\url{http://mitcr.milaboratory.com/datasets/aging2013/}).
#' Sequencing for the the remaining 16 individuals, age range from 17-67 years,
#' was obtained from "Origin and evolution of the T-cell repertoire after
#' posttransplantation cyclophosphamide"
#' (\url{https://clients.adaptivebiotech.com/publishedProjects}).
"prevalenceTRB"