Mercurial > repos > davidvanzessen > mutation_analysis
diff mutation_analysis.r @ 0:8a5a2abbb870 draft default tip
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| author | davidvanzessen |
|---|---|
| date | Mon, 29 Aug 2016 05:36:10 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mutation_analysis.r Mon Aug 29 05:36:10 2016 -0400 @@ -0,0 +1,477 @@ +library(data.table) +library(ggplot2) +library(reshape2) + +args <- commandArgs(trailingOnly = TRUE) + +input = args[1] +genes = unlist(strsplit(args[2], ",")) +outputdir = args[3] +include_fr1 = ifelse(args[4] == "yes", T, F) +setwd(outputdir) + +dat = read.table(input, header=T, sep="\t", fill=T, stringsAsFactors=F) + +if(length(dat$Sequence.ID) == 0){ + setwd(outputdir) + result = data.frame(x = rep(0, 5), y = rep(0, 5), z = rep(NA, 5)) + row.names(result) = c("Number of Mutations (%)", "Transition (%)", "Transversions (%)", "Transitions at G C (%)", "Targeting of C G (%)") + write.table(x=result, file="mutations.txt", sep=",",quote=F,row.names=T,col.names=F) + transitionTable = data.frame(A=rep(0, 4),C=rep(0, 4),G=rep(0, 4),T=rep(0, 4)) + row.names(transitionTable) = c("A", "C", "G", "T") + transitionTable["A","A"] = NA + transitionTable["C","C"] = NA + transitionTable["G","G"] = NA + transitionTable["T","T"] = NA + write.table(x=transitionTable, file="transitions.txt", sep=",",quote=F,row.names=T,col.names=NA) + cat("0", file="n.txt") + stop("No data") +} + +cleanup_columns = c("FR1.IMGT.c.a", + "FR2.IMGT.g.t", + "CDR1.IMGT.Nb.of.nucleotides", + "CDR2.IMGT.t.a", + "FR1.IMGT.c.g", + "CDR1.IMGT.c.t", + "FR2.IMGT.a.c", + "FR2.IMGT.Nb.of.mutations", + "FR2.IMGT.g.c", + "FR2.IMGT.a.g", + "FR3.IMGT.t.a", + "FR3.IMGT.t.c", + "FR2.IMGT.g.a", + "FR3.IMGT.c.g", + "FR1.IMGT.Nb.of.mutations", + "CDR1.IMGT.g.a", + "CDR1.IMGT.t.g", + "CDR1.IMGT.g.c", + "CDR2.IMGT.Nb.of.nucleotides", + "FR2.IMGT.a.t", + "CDR1.IMGT.Nb.of.mutations", + "CDR3.IMGT.Nb.of.nucleotides", + "CDR1.IMGT.a.g", + "FR3.IMGT.a.c", + "FR1.IMGT.g.a", + "FR3.IMGT.a.g", + "FR1.IMGT.a.t", + "CDR2.IMGT.a.g", + "CDR2.IMGT.Nb.of.mutations", + "CDR2.IMGT.g.t", + "CDR2.IMGT.a.c", + "CDR1.IMGT.t.c", + "FR3.IMGT.g.c", + "FR1.IMGT.g.t", + "FR3.IMGT.g.t", + "CDR1.IMGT.a.t", + "FR1.IMGT.a.g", + "FR3.IMGT.a.t", + "FR3.IMGT.Nb.of.nucleotides", + "FR2.IMGT.t.c", + "CDR2.IMGT.g.a", + "FR2.IMGT.t.a", + "CDR1.IMGT.t.a", + "FR2.IMGT.t.g", + "FR3.IMGT.t.g", + "FR2.IMGT.Nb.of.nucleotides", + "FR1.IMGT.t.a", + "FR1.IMGT.t.g", + "FR3.IMGT.c.t", + "FR1.IMGT.t.c", + "CDR2.IMGT.a.t", + "FR2.IMGT.c.t", + "CDR1.IMGT.g.t", + "CDR2.IMGT.t.g", + "FR1.IMGT.Nb.of.nucleotides", + "CDR1.IMGT.c.g", + "CDR2.IMGT.t.c", + "FR3.IMGT.g.a", + "CDR1.IMGT.a.c", + "FR2.IMGT.c.a", + "FR3.IMGT.Nb.of.mutations", + "FR2.IMGT.c.g", + "CDR2.IMGT.g.c", + "FR1.IMGT.g.c", + "CDR2.IMGT.c.t", + "FR3.IMGT.c.a", + "CDR1.IMGT.c.a", + "CDR2.IMGT.c.g", + "CDR2.IMGT.c.a", + "FR1.IMGT.c.t", + "FR1.IMGT.Nb.of.silent.mutations", + "FR2.IMGT.Nb.of.silent.mutations", + "FR3.IMGT.Nb.of.silent.mutations", + "FR1.IMGT.Nb.of.nonsilent.mutations", + "FR2.IMGT.Nb.of.nonsilent.mutations", + "FR3.IMGT.Nb.of.nonsilent.mutations") + + +print("Cleaning up columns") +for(col in cleanup_columns){ + dat[,col] = gsub("\\(.*\\)", "", dat[,col]) + #dat[dat[,col] == "",] = "0" + dat[,col] = as.numeric(dat[,col]) + dat[is.na(dat[,col]),col] = 0 +} + +regions = c("FR1", "CDR1", "FR2", "CDR2", "FR3") +if(!include_fr1){ + regions = c("CDR1", "FR2", "CDR2", "FR3") +} + +sum_by_row = function(x, columns) { sum(as.numeric(x[columns]), na.rm=T) } + +print("aggregating data into new columns") + +VRegionMutations_columns = paste(regions, ".IMGT.Nb.of.mutations", sep="") +dat$VRegionMutations = apply(dat, FUN=sum_by_row, 1, columns=VRegionMutations_columns) + +VRegionNucleotides_columns = paste(regions, ".IMGT.Nb.of.nucleotides", sep="") +dat$FR3.IMGT.Nb.of.nucleotides = nchar(dat$FR3.IMGT.seq) +dat$VRegionNucleotides = apply(dat, FUN=sum_by_row, 1, columns=VRegionNucleotides_columns) + +transitionMutations_columns = paste(rep(regions, each=4), c(".IMGT.a.g", ".IMGT.g.a", ".IMGT.c.t", ".IMGT.t.c"), sep="") +dat$transitionMutations = apply(dat, FUN=sum_by_row, 1, columns=transitionMutations_columns) + +transversionMutations_columns = paste(rep(regions, each=8), c(".IMGT.a.c",".IMGT.c.a",".IMGT.a.t",".IMGT.t.a",".IMGT.g.c",".IMGT.c.g",".IMGT.g.t",".IMGT.t.g"), sep="") +dat$transversionMutations = apply(dat, FUN=sum_by_row, 1, columns=transversionMutations_columns) + + +transitionMutationsAtGC_columns = paste(rep(regions, each=2), c(".IMGT.g.a",".IMGT.c.t"), sep="") +dat$transitionMutationsAtGC = apply(dat, FUN=sum_by_row, 1, columns=transitionMutationsAtGC_columns) + + +totalMutationsAtGC_columns = paste(rep(regions, each=6), c(".IMGT.c.g",".IMGT.c.t",".IMGT.c.a",".IMGT.g.c",".IMGT.g.a",".IMGT.g.t"), sep="") +#totalMutationsAtGC_columns = paste(rep(regions, each=6), c(".IMGT.g.a",".IMGT.c.t",".IMGT.c.a",".IMGT.c.g",".IMGT.g.t"), sep="") +dat$totalMutationsAtGC = apply(dat, FUN=sum_by_row, 1, columns=totalMutationsAtGC_columns) + +transitionMutationsAtAT_columns = paste(rep(regions, each=2), c(".IMGT.a.g",".IMGT.t.c"), sep="") +dat$transitionMutationsAtAT = apply(dat, FUN=sum_by_row, 1, columns=transitionMutationsAtAT_columns) + +totalMutationsAtAT_columns = paste(rep(regions, each=6), c(".IMGT.a.g",".IMGT.a.c",".IMGT.a.t",".IMGT.t.g",".IMGT.t.c",".IMGT.t.a"), sep="") +#totalMutationsAtAT_columns = paste(rep(regions, each=5), c(".IMGT.a.g",".IMGT.t.c",".IMGT.a.c",".IMGT.g.c",".IMGT.t.g"), sep="") +dat$totalMutationsAtAT = apply(dat, FUN=sum_by_row, 1, columns=totalMutationsAtAT_columns) + + +FRRegions = regions[grepl("FR", regions)] +CDRRegions = regions[grepl("CDR", regions)] + +FR_silentMutations_columns = paste(FRRegions, ".IMGT.Nb.of.silent.mutations", sep="") +dat$silentMutationsFR = apply(dat, FUN=sum_by_row, 1, columns=FR_silentMutations_columns) + +CDR_silentMutations_columns = paste(CDRRegions, ".IMGT.Nb.of.silent.mutations", sep="") +dat$silentMutationsCDR = apply(dat, FUN=sum_by_row, 1, columns=CDR_silentMutations_columns) + +FR_nonSilentMutations_columns = paste(FRRegions, ".IMGT.Nb.of.nonsilent.mutations", sep="") +dat$nonSilentMutationsFR = apply(dat, FUN=sum_by_row, 1, columns=FR_nonSilentMutations_columns) + +CDR_nonSilentMutations_columns = paste(CDRRegions, ".IMGT.Nb.of.nonsilent.mutations", sep="") +dat$nonSilentMutationsCDR = apply(dat, FUN=sum_by_row, 1, columns=CDR_nonSilentMutations_columns) + +mutation.sum.columns = c("Sequence.ID", "VRegionMutations", "VRegionNucleotides", "transitionMutations", "transversionMutations", "transitionMutationsAtGC", "transitionMutationsAtAT", "silentMutationsFR", "nonSilentMutationsFR", "silentMutationsCDR", "nonSilentMutationsCDR") + +write.table(dat[,mutation.sum.columns], "mutation_by_id.txt", sep="\t",quote=F,row.names=F,col.names=T) + +setwd(outputdir) + +base.order = data.frame(base=c("A", "T", "C", "G"), order=1:4) + +calculate_result = function(i, gene, dat, matrx, f, fname, name){ + tmp = dat[grepl(paste("^", gene, ".*", sep=""), dat$best_match),] + + j = i - 1 + x = (j * 3) + 1 + y = (j * 3) + 2 + z = (j * 3) + 3 + + if(nrow(tmp) > 0){ + + if(fname == "sum"){ + matrx[1,x] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[1,y] = round(f(tmp$VRegionNucleotides, na.rm=T), digits=1) + matrx[1,z] = round(f(matrx[1,x] / matrx[1,y]) * 100, digits=1) + } else { + matrx[1,x] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[1,y] = round(f(tmp$VRegionNucleotides, na.rm=T), digits=1) + matrx[1,z] = round(f(tmp$VRegionMutations / tmp$VRegionNucleotides) * 100, digits=1) + } + + matrx[2,x] = round(f(tmp$transitionMutations, na.rm=T), digits=1) + matrx[2,y] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[2,z] = round(matrx[2,x] / matrx[2,y] * 100, digits=1) + + matrx[3,x] = round(f(tmp$transversionMutations, na.rm=T), digits=1) + matrx[3,y] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[3,z] = round(matrx[3,x] / matrx[3,y] * 100, digits=1) + + matrx[4,x] = round(f(tmp$transitionMutationsAtGC, na.rm=T), digits=1) + matrx[4,y] = round(f(tmp$totalMutationsAtGC, na.rm=T), digits=1) + matrx[4,z] = round(matrx[4,x] / matrx[4,y] * 100, digits=1) + + matrx[5,x] = round(f(tmp$totalMutationsAtGC, na.rm=T), digits=1) + matrx[5,y] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[5,z] = round(matrx[5,x] / matrx[5,y] * 100, digits=1) + + matrx[6,x] = round(f(tmp$transitionMutationsAtAT, na.rm=T), digits=1) + matrx[6,y] = round(f(tmp$totalMutationsAtAT, na.rm=T), digits=1) + matrx[6,z] = round(matrx[6,x] / matrx[6,y] * 100, digits=1) + + matrx[7,x] = round(f(tmp$totalMutationsAtAT, na.rm=T), digits=1) + matrx[7,y] = round(f(tmp$VRegionMutations, na.rm=T), digits=1) + matrx[7,z] = round(matrx[7,x] / matrx[7,y] * 100, digits=1) + + matrx[8,x] = round(f(tmp$nonSilentMutationsFR, na.rm=T), digits=1) + matrx[8,y] = round(f(tmp$silentMutationsFR, na.rm=T), digits=1) + matrx[8,z] = round(matrx[8,x] / matrx[8,y], digits=1) + + matrx[9,x] = round(f(tmp$nonSilentMutationsCDR, na.rm=T), digits=1) + matrx[9,y] = round(f(tmp$silentMutationsCDR, na.rm=T), digits=1) + matrx[9,z] = round(matrx[9,x] / matrx[9,y], digits=1) + + if(fname == "sum"){ + matrx[10,x] = round(f(rowSums(tmp[,c("FR2.IMGT.Nb.of.nucleotides", "FR3.IMGT.Nb.of.nucleotides")], na.rm=T)), digits=1) + matrx[10,y] = round(f(tmp$VRegionNucleotides, na.rm=T), digits=1) + matrx[10,z] = round(matrx[10,x] / matrx[10,y] * 100, digits=1) + + matrx[11,x] = round(f(rowSums(tmp[,c("CDR1.IMGT.Nb.of.nucleotides", "CDR2.IMGT.Nb.of.nucleotides")], na.rm=T)), digits=1) + matrx[11,y] = round(f(tmp$VRegionNucleotides, na.rm=T), digits=1) + matrx[11,z] = round(matrx[11,x] / matrx[11,y] * 100, digits=1) + } + } + + transitionTable = data.frame(A=zeros,C=zeros,G=zeros,T=zeros) + row.names(transitionTable) = c("A", "C", "G", "T") + transitionTable["A","A"] = NA + transitionTable["C","C"] = NA + transitionTable["G","G"] = NA + transitionTable["T","T"] = NA + + if(nrow(tmp) > 0){ + for(nt1 in nts){ + for(nt2 in nts){ + if(nt1 == nt2){ + next + } + NT1 = LETTERS[letters == nt1] + NT2 = LETTERS[letters == nt2] + FR1 = paste("FR1.IMGT.", nt1, ".", nt2, sep="") + CDR1 = paste("CDR1.IMGT.", nt1, ".", nt2, sep="") + FR2 = paste("FR2.IMGT.", nt1, ".", nt2, sep="") + CDR2 = paste("CDR2.IMGT.", nt1, ".", nt2, sep="") + FR3 = paste("FR3.IMGT.", nt1, ".", nt2, sep="") + if(include_fr1){ + transitionTable[NT1,NT2] = sum(tmp[,c(FR1, CDR1, FR2, CDR2, FR3)]) + } else { + transitionTable[NT1,NT2] = sum(tmp[,c(CDR1, FR2, CDR2, FR3)]) + } + } + } + transition = transitionTable + transition$id = names(transition) + + transition2 = melt(transition, id.vars="id") + + transition2 = merge(transition2, base.order, by.x="id", by.y="base") + transition2 = merge(transition2, base.order, by.x="variable", by.y="base") + + transition2[is.na(transition2$value),]$value = 0 + + if(!all(transition2$value == 0)){ #having rows of data but a transition table filled with 0 is bad + + print("Plotting stacked transition") + + png(filename=paste("transitions_stacked_", name, ".png", sep="")) + p = ggplot(transition2, aes(factor(reorder(id, order.x)), y=value, fill=factor(reorder(variable, order.y)))) + geom_bar(position="fill", stat="identity") #stacked bar + p = p + xlab("From base") + ylab("To base") + ggtitle("Mutations frequency from base to base") + guides(fill=guide_legend(title=NULL)) + print(p) + dev.off() + + print("Plotting heatmap transition") + + png(filename=paste("transitions_heatmap_", name, ".png", sep="")) + p = ggplot(transition2, aes(factor(reorder(id, order.x)), factor(reorder(variable, order.y)))) + geom_tile(aes(fill = value), colour="white") + scale_fill_gradient(low="white", high="steelblue") #heatmap + p = p + xlab("From base") + ylab("To base") + ggtitle("Mutations frequency from base to base") + print(p) + dev.off() + } else { + print("No data to plot") + } + } + + #print(paste("writing value file: ", name, "_", fname, "_value.txt" ,sep="")) + + write.table(x=transitionTable, file=paste("transitions_", name ,"_", fname, ".txt", sep=""), sep=",",quote=F,row.names=T,col.names=NA) + write.table(x=tmp[,c("Sequence.ID", "best_match", "chunk_hit_percentage", "nt_hit_percentage", "start_locations")], file=paste("matched_", name , "_", fname, ".txt", sep=""), sep="\t",quote=F,row.names=F,col.names=T) + + cat(matrx[1,x], file=paste(name, "_", fname, "_value.txt" ,sep="")) + cat(nrow(tmp), file=paste(name, "_", fname, "_n.txt" ,sep="")) + + #print(paste(fname, name, nrow(tmp))) + + matrx +} + +nts = c("a", "c", "g", "t") +zeros=rep(0, 4) + +funcs = c(median, sum, mean) +fnames = c("median", "sum", "mean") + +print("Creating result tables") + +for(i in 1:length(funcs)){ + func = funcs[[i]] + fname = fnames[[i]] + + rows = 9 + if(fname == "sum"){ + rows = 11 + } + matrx = matrix(data = 0, ncol=((length(genes) + 1) * 3),nrow=rows) + + for(i in 1:length(genes)){ + print(paste("Creating table for", fname, genes[i])) + matrx = calculate_result(i, genes[i], dat, matrx, func, fname, genes[i]) + } + + matrx = calculate_result(i + 1, ".*", dat[!grepl("unmatched", dat$best_match),], matrx, func, fname, name="all") + + result = data.frame(matrx) + if(fname == "sum"){ + row.names(result) = c("Number of Mutations (%)", "Transitions (%)", "Transversions (%)", "Transitions at G C (%)", "Targeting of C G (%)", "Transitions at A T (%)", "Targeting of A T (%)", "FR R/S (ratio)", "CDR R/S (ratio)", "nt in FR", "nt in CDR") + } else { + row.names(result) = c("Number of Mutations (%)", "Transitions (%)", "Transversions (%)", "Transitions at G C (%)", "Targeting of C G (%)", "Transitions at A T (%)", "Targeting of A T (%)", "FR R/S (ratio)", "CDR R/S (ratio)") + } + + write.table(x=result, file=paste("mutations_", fname, ".txt", sep=""), sep=",",quote=F,row.names=T,col.names=F) +} + +print("Adding median number of mutations to sum table") + +sum.table = read.table("mutations_sum.txt", sep=",", header=F) +median.table = read.table("mutations_median.txt", sep=",", header=F) + +new.table = sum.table[1,] +new.table[2,] = median.table[1,] +new.table[3:12,] = sum.table[2:11,] +new.table[,1] = as.character(new.table[,1]) +new.table[2,1] = "Median of Number of Mutations (%)" + +#sum.table = sum.table[c("Number of Mutations (%)", "Median of Number of Mutations (%)", "Transition (%)", "Transversions (%)", "Transitions at G C (%)", "Targeting of C G (%)", "Transitions at A T (%)", "Targeting of A T (%)", "FR R/S (ratio)", "CDR R/S (ratio)", "nt in FR", "nt in CDR"),] + +write.table(x=new.table, file="mutations_sum.txt", sep=",",quote=F,row.names=F,col.names=F) + + +print("Plotting ca piechart") + +dat = dat[!grepl("^unmatched", dat$best_match),] + +#blegh +genesForPlot = dat[grepl("ca", dat$best_match),]$best_match +if(length(genesForPlot) > 0){ + genesForPlot = data.frame(table(genesForPlot)) + colnames(genesForPlot) = c("Gene","Freq") + genesForPlot$label = paste(genesForPlot$Gene, "-", genesForPlot$Freq) + + pc = ggplot(genesForPlot, aes(x = factor(1), y=Freq, fill=label)) + pc = pc + geom_bar(width = 1, stat = "identity") + pc = pc + coord_polar(theta="y") + pc = pc + xlab(" ") + ylab(" ") + ggtitle(paste("IgA subclasses", "( n =", sum(genesForPlot$Freq), ")")) + write.table(genesForPlot, "ca.txt", sep="\t",quote=F,row.names=F,col.names=T) + + png(filename="ca.png") + print(pc) + dev.off() +} + +print("Plotting cg piechart") + +genesForPlot = dat[grepl("cg", dat$best_match),]$best_match +if(length(genesForPlot) > 0){ + genesForPlot = data.frame(table(genesForPlot)) + colnames(genesForPlot) = c("Gene","Freq") + genesForPlot$label = paste(genesForPlot$Gene, "-", genesForPlot$Freq) + + pc = ggplot(genesForPlot, aes(x = factor(1), y=Freq, fill=label)) + pc = pc + geom_bar(width = 1, stat = "identity") + pc = pc + coord_polar(theta="y") + pc = pc + xlab(" ") + ylab(" ") + ggtitle(paste("IgG subclasses", "( n =", sum(genesForPlot$Freq), ")")) + write.table(genesForPlot, "cg.txt", sep="\t",quote=F,row.names=F,col.names=T) + + png(filename="cg.png") + print(pc) + dev.off() +} + + +print("Plotting scatterplot") + +dat$percentage_mutations = round(dat$VRegionMutations / dat$VRegionNucleotides * 100, 2) + +p = ggplot(dat, aes(best_match, percentage_mutations)) +p = p + geom_point(aes(colour=best_match), position="jitter") + geom_boxplot(aes(middle=mean(percentage_mutations)), alpha=0.1, outlier.shape = NA) +p = p + xlab("Subclass") + ylab("Frequency") + ggtitle("Frequency scatter plot") + +png(filename="scatter.png") +print(p) +dev.off() + +write.table(dat[,c("Sequence.ID", "best_match", "VRegionMutations", "VRegionNucleotides", "percentage_mutations")], "scatter.txt", sep="\t",quote=F,row.names=F,col.names=T) + +write.table(dat, input, sep="\t",quote=F,row.names=F,col.names=T) + + +print("Plotting frequency ranges plot") + +dat$best_match_class = substr(dat$best_match, 0, 2) +freq_labels = c("0", "0-2", "2-5", "5-10", "10-15", "15-20", "20") +dat$frequency_bins = cut(dat$percentage_mutations, breaks=c(-Inf, 0, 2,5,10,15,20, Inf), labels=freq_labels) + +frequency_bins_data = data.frame(data.table(dat)[, list(frequency_count=.N), by=c("best_match_class", "frequency_bins")]) + +p = ggplot(frequency_bins_data, aes(frequency_bins, frequency_count)) +p = p + geom_bar(aes(fill=best_match_class), stat="identity", position="dodge") +p = p + xlab("Frequency ranges") + ylab("Frequency") + ggtitle("Mutation Frequencies by class") + +png(filename="frequency_ranges.png") +print(p) +dev.off() + +frequency_bins_data_by_class = frequency_bins_data + +write.table(frequency_bins_data_by_class, "frequency_ranges_classes.txt", sep="\t",quote=F,row.names=F,col.names=T) + +frequency_bins_data = data.frame(data.table(dat)[, list(frequency_count=.N), by=c("best_match", "frequency_bins")]) + +write.table(frequency_bins_data, "frequency_ranges_subclasses.txt", sep="\t",quote=F,row.names=F,col.names=T) + + +#frequency_bins_data_by_class +#frequency_ranges_subclasses.txt + + + + + + + + + + + + + + + + + + + + + + + + + + +