Variant 3-37025608-ATTTTTTTTT-ATT details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_000249.4(MLH1):c.1039-14_1039-8del variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000306 in 306,734 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Likely benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.0016 ( 2 hom., cov: 0)

Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

MLH1
NM_000249.4 intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.781

Variant links:

Genes affected

MLH1 (HGNC:7127): (mutL homolog 1) The protein encoded by this gene can heterodimerize with mismatch repair endonuclease PMS2 to form MutL alpha, part of the DNA mismatch repair system. When MutL alpha is bound by MutS beta and some accessory proteins, the PMS2 subunit of MutL alpha introduces a single-strand break near DNA mismatches, providing an entry point for exonuclease degradation. The encoded protein is also involved in DNA damage signaling and can heterodimerize with DNA mismatch repair protein MLH3 to form MutL gamma, which is involved in meiosis. This gene was identified as a locus frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). [provided by RefSeq, Aug 2017]

MLH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 3-37025608-ATTTTTTT-A is Benign according to our data. Variant chr3-37025608-ATTTTTTT-A is described in ClinVar as [Likely_benign]. Clinvar id is 922783.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00162 (78/48276) while in subpopulation AFR AF= 0.00639 (77/12042). AF 95% confidence interval is 0.00524. There are 2 homozygotes in gnomad4. There are 31 alleles in male gnomad4 subpopulation. Median coverage is 0. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MLH1	NM_000249.4 linkuse as main transcript	c.1039-14_1039-8del		intron_variant		ENST00000231790.8	NP_000240.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MLH1	ENST00000231790.8 linkuse as main transcript	c.1039-14_1039-8del		intron_variant		1	NM_000249.4	ENSP00000231790	P1	P40692-1

Frequencies

GnomAD3 genomes

AF:

0.00162

AC:

AN:

48288

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00640

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:

0.0000382

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000619

AC:

AN:

258458

Hom.:

AF XY:

0.0000312

AC XY:

AN XY:

128314

show subpopulations

Gnomad4 AFR exome

AF:

0.00449

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000429

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00162

AC:

AN:

48276

Hom.:

Cov.:

AF XY:

0.00144

AC XY:

AN XY:

21490

show subpopulations

Gnomad4 AFR

AF:

0.00639

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000382

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Jul 31, 2024

- -

Hereditary cancer-predisposing syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Aug 03, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

La Branchor

0.24

BranchPoint Hunter

2.0

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over