chr2-47782946-C-T

Position:

• chr2-47782946-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The ENST00000652107.1(MSH6):​c.-37-7981C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00285 in 210,690 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0037 (5 hom., cov: 33)
  • Exomes 𝑓: 0.00065 (1 hom.)
• Consequence: MSH6 ENST00000652107.1 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.186

Genes affected

MSH6 (HGNC:7329): (mutS homolog 6) This gene encodes a member of the DNA mismatch repair MutS family. In E. coli, the MutS protein helps in the recognition of mismatched nucleotides prior to their repair. A highly conserved region of approximately 150 aa, called the Walker-A adenine nucleotide binding motif, exists in MutS homologs. The encoded protein heterodimerizes with MSH2 to form a mismatch recognition complex that functions as a bidirectional molecular switch that exchanges ADP and ATP as DNA mismatches are bound and dissociated. Mutations in this gene may be associated with hereditary nonpolyposis colon cancer, colorectal cancer, and endometrial cancer. Transcripts variants encoding different isoforms have been described. [provided by RefSeq, Jul 2013]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 2-47782946-C-T is Benign according to our data. Variant chr2-47782946-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1205129.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0037 (563/152134) while in subpopulation AFR AF= 0.0118 (492/41534). AF 95% confidence interval is 0.011. There are 5 homozygotes in gnomad4. There are 286 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MSH6	ENST00000652107.1	c.-37-7981C>T		intron_variant				ENSP00000498629

Frequencies

GnomAD3 genomes AF: 0.00365 AC: 555 AN: 152024 Hom.: 4 Cov.: 33

Gnomad AFR AF: 0.0117

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00118

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00194

Gnomad SAS AF: 0.00662

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00431

GnomAD4 exome AF: 0.000649 AC: 38 AN: 58556 Hom.: 1 AF XY: 0.000638 AC XY: 19 AN XY: 29782

Gnomad4 AFR exome AF: 0.00856

Gnomad4 AMR exome AF: 0.000644

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000679

Gnomad4 SAS exome AF: 0.00868

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000127

Gnomad4 OTH exome AF: 0.00170

GnomAD4 genome AF: 0.00370 AC: 563 AN: 152134 Hom.: 5 Cov.: 33 AF XY: 0.00385 AC XY: 286 AN XY: 74362

Gnomad4 AFR AF: 0.0118

Gnomad4 AMR AF: 0.00118

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00194

Gnomad4 SAS AF: 0.00662

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00427

Bravo AF: 0.00389

Asia WGS AF: 0.0110 AC: 38 AN: 3462

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Mar 01, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	6.2
DANN	Benign	0.86

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs371260512; hg19: chr2-48010085;