rs377329425
Variant summary
Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong
The NM_000249.4(MLH1):c.1667+16G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,429,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
MLH1
NM_000249.4 intron
NM_000249.4 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.908
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 -10 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
?
Variant 3-37040310-G-A is Benign according to our data. Variant chr3-37040310-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 491684.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MLH1 | NM_000249.4 | c.1667+16G>A | intron_variant | ENST00000231790.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MLH1 | ENST00000231790.8 | c.1667+16G>A | intron_variant | 1 | NM_000249.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000140 AC: 2AN: 1429248Hom.: 0 Cov.: 24 AF XY: 0.00000140 AC XY: 1AN XY: 713154
GnomAD4 exome
AF:
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2
AN:
1429248
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Cov.:
24
AF XY:
AC XY:
1
AN XY:
713154
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
Asia WGS
AF:
AC:
1
AN:
3478
ClinVar
Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Hereditary nonpolyposis colorectal neoplasms Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Sep 17, 2023 | - - |
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Apr 24, 2017 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
Name
Calibrated prediction
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at