Question: How to Identify the pathogenicity of a set of variants (by using ACMG guidelines)?
0
gravatar for DanielC
4 months ago by
DanielC80
Canada
DanielC80 wrote:

Dear Friends,

Am trying to find the pathogenicity of a set of variants (by using ACMG guidelines: https://www.ncbi.nlm.nih.gov/pubmed/25741868 ). The vcf file of the variants looks like this:

CHROM   POS     ID      REF     ALT     GT
22      11005678        .       G       A       0|1
22      16052167        .       A       AAAAC   0|1

I went through the paper but did not find a clear idea - could you please let me know the steps to predict the pathogenicity of such variants?

Thanks, DK

variants snp pathogenicity • 204 views
ADD COMMENTlink modified 4 months ago by kuan-lin.huang20 • written 4 months ago by DanielC80

Hello DK ,

is this more a general question how to work with the ACMG guidelines or are you hopping that there is a computational solution for it? The later one will be quite hard to implement as it requires literature research.

If it's more a general question: Go through the criteria list in table 3 and 4 and classify by the rule sin table 5.

fin swimmer

ADD REPLYlink written 4 months ago by finswimmer11k

Thanks Fin! I am looking for computational approach to predict the pathogenicity of the variants in the vcf file using the ACMG guidelines. I am finding it hard to start, like what is the first step to implement? I know that vcf files contain SNP information and I should be looking at heterozygous alternate(0/1) and homozygous alternate(1/1), but then what are the steps to detect the pathogenicity? The table 3 and 4 give information on the criterion to name the variants either strong or very strong etc, but how to get to that step? I hope I put the question clearly, please let me know if I am not clear.

Thanks!

ADD REPLYlink written 4 months ago by DanielC80
1

The first thing you should and can do is, is to annotate your vcf file file with

  • population data like ExAC, gnomAD
  • if available: desease database information like clniVar
  • effect of the variant (nonsense, missense, ...)
  • In Silico Predictive Algorithms

The most easiest way to do this is VEP by ensembl. Also snpEff/snpSift is very good.

Bu this is only the beginning in classifying by ACMG. For example functional data is missing.

fin swimmer

ADD REPLYlink written 4 months ago by finswimmer11k
1
gravatar for kuan-lin.huang
4 months ago by
kuan-lin.huang20 wrote:

Please check out our implementation of ACMG guideline: https://github.com/ding-lab/CharGer

Best, Kuan Huang Lab | Computational Omics @ MSSM

ADD COMMENTlink written 4 months ago by kuan-lin.huang20
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