Variant 14-75047207-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM5BP4_ModerateBS2

The NM_001040108.2(MLH3):c.2449A>C(p.Ser817Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S817G) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

MLH3
NM_001040108.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.213

Variant links:

Genes affected

MLH3 (HGNC:7128): (mutL homolog 3) This gene is a member of the MutL-homolog (MLH) family of DNA mismatch repair (MMR) genes. MLH genes are implicated in maintaining genomic integrity during DNA replication and after meiotic recombination. The protein encoded by this gene functions as a heterodimer with other family members. Somatic mutations in this gene frequently occur in tumors exhibiting microsatellite instability, and germline mutations have been linked to hereditary nonpolyposis colorectal cancer type 7 (HNPCC7). Several alternatively spliced transcript variants have been identified, but the full-length nature of only two transcript variants has been determined. [provided by RefSeq, Jul 2008]

MLH3 links:

MLH3 (HGNC:):

MLH3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr14-75047207-T-C is described in Lovd as [Pathogenic].

BP4

Computational evidence support a benign effect (MetaRNN=0.12674484).

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MLH3	NM_001040108.2 linkuse as main transcript	c.2449A>C	p.Ser817Arg	missense_variant	2/13	ENST00000355774.7	NP_001035197.1	Q9UHC1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MLH3	ENST00000355774.7 linkuse as main transcript	c.2449A>C	p.Ser817Arg	missense_variant	2/13	5	NM_001040108.2	ENSP00000348020.2	Q9UHC1-1
MLH3	ENST00000380968.6 linkuse as main transcript	c.2449A>C	p.Ser817Arg	missense_variant	2/12	1		ENSP00000370355.3	Q9UHC1-2
MLH3	ENST00000556257.5 linkuse as main transcript	c.2449A>C	p.Ser817Arg	missense_variant	2/7	5		ENSP00000451540.1	G3V419
MLH3	ENST00000555671.1 linkuse as main transcript	n.-6A>C		upstream_gene_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152258

Hom.:

Cov.:

show subpopulations

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461776

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727184

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000144

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.064

BayesDel_noAF

Benign

-0.33

CADD

Benign

7.0

DANN

Uncertain

0.98

DEOGEN2

Benign

0.10

T;.;.;T

Eigen

Benign

-0.98

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.62

T;T;T;.

M_CAP

Benign

0.034

MetaRNN

Benign

0.13

T;T;T;T

MetaSVM

Benign

-0.59

MutationAssessor

Benign

1.5

L;L;.;L

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.5

N;.;N;N

REVEL

Benign

0.18

Sift

Benign

0.10

T;.;T;T

Sift4G

Benign

0.48

T;T;T;T

Polyphen

0.0030

B;B;.;B

Vest4

0.17

MutPred

0.40

Gain of catalytic residue at S817 (P = 9e-04);Gain of catalytic residue at S817 (P = 9e-04);Gain of catalytic residue at S817 (P = 9e-04);Gain of catalytic residue at S817 (P = 9e-04);

MVP

0.66

MPC

0.12

ClinPred

0.038

GERP RS

0.067

Varity_R

0.075

gMVP

0.28

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over