2-47414420-TAAAAAAAAAAAAAAAAAAA-TAAAAAAAAAAAAAAAAAAAAAAAA

Variant names:

• chr2-47414420-T-TAAAAA
• rs11309117
• NM_000251.3:c.942+25_942+29dupAAAAA

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP6_Moderate

The NM_000251.3(MSH2):​c.942+25_942+29dupAAAAA variant causes a intron change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.0 (0 hom., cov: 0)
  • Exomes 𝑓: 0.000010 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MSH2 NM_000251.3 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 2.32
• Publications: 0 publications found

Genes affected

MSH2 (HGNC:7325): (mutS homolog 2) This locus is frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). When cloned, it was discovered to be a human homolog of the E. coli mismatch repair gene mutS, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in HNPCC. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

MSH2 Gene-Disease associations (from GenCC):

• Lynch syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet
• Lynch syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
• Muir-Torre syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, G2P
• mismatch repair cancer syndrome 1

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• mismatch repair cancer syndrome 2

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• ovarian cancer

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• malignant pancreatic neoplasm

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
• prostate cancer

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• rhabdomyosarcoma

  Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
• breast cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
• hereditary breast carcinoma

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP6: Variant 2-47414420-T-TAAAAA is Benign according to our data. Variant chr2-47414420-T-TAAAAA is described in ClinVar as Benign. ClinVar VariationId is 1685758.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSH2	NM_000251.3	c.942+25_942+29dupAAAAA		intron_variant	Intron 5 of 15	ENST00000233146.7	NP_000242.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSH2	ENST00000233146.7	c.942+2_942+3insAAAAA		splice_region_variant, intron_variant	Intron 5 of 15	1	NM_000251.3	ENSP00000233146.2

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 62234 Hom.: 0 Cov.: 0

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000102 AC: 10 AN: 982154 Hom.: 0 Cov.: 0 AF XY: 0.0000102 AC XY: 5 AN XY: 488156

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000926 AC: 2 AN: 21594

American (AMR) AF: 0.000107 AC: 2 AN: 18674

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 14770

East Asian (EAS) AF: 0.00 AC: 0 AN: 23652

South Asian (SAS) AF: 0.0000174 AC: 1 AN: 57446

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 21458

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2506

European-Non Finnish (NFE) AF: 0.00000638 AC: 5 AN: 783496

Other (OTH) AF: 0.00 AC: 0 AN: 38558

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 62234 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 27562

African (AFR) AF: 0.00 AC: 0 AN: 19366

American (AMR) AF: 0.00 AC: 0 AN: 4136

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 1768

East Asian (EAS) AF: 0.00 AC: 0 AN: 1634

South Asian (SAS) AF: 0.00 AC: 0 AN: 1108

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 634

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 102

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 32198

Other (OTH) AF: 0.00 AC: 0 AN: 778

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

May 04, 2022

Mendelics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.3

Splicing

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

Other links and lift over

dbSNP: rs11309117; hg19: chr2-47641559;