I use Snpeff 4.2 to annotate a VCF and then I use 'Snpsift extractFields' transform the vcf into txt as explained Here
I meet a strange behavior, i don't understand.
My code :
${JAVA7}/java -jar -Xmx4G ${SNPEFF}snpEff.jar -c ${SNPEFF}snpEff.config ${SNPEFF_VERSION} -noStats -t ${NAME_INPUT_PATH_TO_FILE} > ${SAMPLE_FILE}.5.vcf
${JAVA7}/java -jar ${SNPSIFT}SnpSift.jar extractFields ${SAMPLE_FILE}.5.vcf -e "." -s "," "CHROM" "POS" "ID" "REF" "ALT" "FILTER" "AF" "AC" "DP" "MQ" "ANN[*].ALLELE" "ANN[*].EFFECT" "ANN[*].IMPACT" > ${SAMPLE_FILE}.snpeff.txt
I get a kind of duplicates for the ANN.fields. If i set ANN[0]. , I will get no duplicates but what I will loose the other infos . I don't understand to what they correspond. The first line of my file give the same effect but for the second line, you can see that the third effect given is different from the two previous. Moreover, sometimes we can get several effects join by "&", why all the effects are not joined by this "&".
| chr1 | 955597 | rs115173026 | G | T | PASS | 0.500 | 1 | 12 | 60.0 | T,T | synonymous_variant,synonymous_variant | LOW,LOW |
| chr1 | 1267325 | rs200330269 | G | GC | PASS | 0.500 | 1 | 206 | 59.86 | GC,GC,GC | downstream_gene_variant,downstream_gene_variant,intron_variant | MODIFIER,MODIFIER,MODIFIER |
| chr1 | 987200 | rs9803031 | C | T | PASS | 1.00 | 2 | 55 | 60.0 | T,T | splice_region_variant&intron_variant,splice_region_variant&intron_variant | LOW,LOW |
Don't understand why there is multiple ANN[*].ALLELE
For example.. In fact they are the same in line one. (even the effects)
I'd like to have a clean readable txt file to open in xls (one info per column for each variant) and understand how it works could be great :)
Maybe that is because there can be multiple transcripts for a particular gene?
E.g for Transcript 1, rs9803031 correspond to the splice region variant; In transcript 2, it in the intron, etc?
Yeap the multiple transcripts stuff is the key :) Thanks