chr3-37028730-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000249.4(MLH1):​c.1410-54C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0131 in 1,612,036 control chromosomes in the GnomAD database, including 935 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

Frequency

Genomes: 𝑓 0.045 ( 460 hom., cov: 32)
Exomes 𝑓: 0.0097 ( 475 hom. )

Consequence

MLH1
NM_000249.4 intron

Scores

2

Clinical Significance

Benign reviewed by expert panel B:7

Conservation

PhyloP100: -0.00800
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 3-37028730-C-T is Benign according to our data. Variant chr3-37028730-C-T is described in ClinVar as [Benign]. Clinvar id is 89722.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr3-37028730-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.142 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MLH1NM_000249.4 linkuse as main transcriptc.1410-54C>T intron_variant ENST00000231790.8 NP_000240.1 P40692-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MLH1ENST00000231790.8 linkuse as main transcriptc.1410-54C>T intron_variant 1 NM_000249.4 ENSP00000231790.3 P40692-1

Frequencies

GnomAD3 genomes
AF:
0.0455
AC:
6912
AN:
152040
Hom.:
458
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.146
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0213
Gnomad ASJ
AF:
0.00260
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.0160
Gnomad FIN
AF:
0.00170
Gnomad MID
AF:
0.0380
Gnomad NFE
AF:
0.00534
Gnomad OTH
AF:
0.0378
GnomAD4 exome
AF:
0.00975
AC:
14230
AN:
1459878
Hom.:
475
AF XY:
0.00960
AC XY:
6975
AN XY:
726416
show subpopulations
Gnomad4 AFR exome
AF:
0.150
Gnomad4 AMR exome
AF:
0.0109
Gnomad4 ASJ exome
AF:
0.00272
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0186
Gnomad4 FIN exome
AF:
0.00111
Gnomad4 NFE exome
AF:
0.00524
Gnomad4 OTH exome
AF:
0.0152
GnomAD4 genome
AF:
0.0455
AC:
6920
AN:
152158
Hom.:
460
Cov.:
32
AF XY:
0.0449
AC XY:
3344
AN XY:
74404
show subpopulations
Gnomad4 AFR
AF:
0.146
Gnomad4 AMR
AF:
0.0212
Gnomad4 ASJ
AF:
0.00260
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.0158
Gnomad4 FIN
AF:
0.00170
Gnomad4 NFE
AF:
0.00534
Gnomad4 OTH
AF:
0.0374
Alfa
AF:
0.0317
Hom.:
45
Bravo
AF:
0.0507
Asia WGS
AF:
0.0120
AC:
40
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesJun 19, 2023- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Colorectal cancer, hereditary nonpolyposis, type 2 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Lynch syndrome Benign:1
Benign, reviewed by expert panelresearchInternational Society for Gastrointestinal Hereditary Tumours (InSiGHT)Sep 05, 2013MAF >1% -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthDec 20, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.62
CADD
Benign
14
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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.

Other links and lift over

dbSNP: rs7633154; hg19: chr3-37070221; COSMIC: COSV104573013; COSMIC: COSV104573013; API