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GeneBe

1-75815081-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002440.4(MSH4):c.760A>G(p.Ile254Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000578 in 1,607,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

MSH4
NM_002440.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.30
Variant links:
Genes affected
MSH4 (HGNC:7327): (mutS homolog 4) This gene encodes a member of the DNA mismatch repair mutS family. This member is a meiosis-specific protein that is not involved in DNA mismatch correction, but is required for reciprocal recombination and proper segregation of homologous chromosomes at meiosis I. This protein and MSH5 form a heterodimer which binds uniquely to a Holliday Junction and its developmental progenitor, thus provoking ADP-ATP exchange, and stabilizing the interaction between parental chromosomes during meiosis double-stranded break repair. [provided by RefSeq, Aug 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15851867).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MSH4NM_002440.4 linkuse as main transcriptc.760A>G p.Ile254Val missense_variant 5/20 ENST00000263187.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MSH4ENST00000263187.4 linkuse as main transcriptc.760A>G p.Ile254Val missense_variant 5/201 NM_002440.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152226
Hom.:
0
Cov.:
32
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000485
AC:
12
AN:
247518
Hom.:
0
AF XY:
0.0000448
AC XY:
6
AN XY:
133832
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000110
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.0000798
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000598
AC:
87
AN:
1455700
Hom.:
0
Cov.:
27
AF XY:
0.0000580
AC XY:
42
AN XY:
724254
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000152
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.0000649
Gnomad4 OTH exome
AF:
0.0000997
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74376
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:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000727
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.00
EpiControl
AF:
0.0000598

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 31, 2023The c.760A>G (p.I254V) alteration is located in exon 5 (coding exon 5) of the MSH4 gene. This alteration results from a A to G substitution at nucleotide position 760, causing the isoleucine (I) at amino acid position 254 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.061
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.35
Cadd
Benign
19
Dann
Uncertain
0.99
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.038
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.0
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.040
N
REVEL
Benign
0.045
Sift
Benign
0.57
T
Sift4G
Benign
0.46
T
Polyphen
0.092
B
Vest4
0.17
MVP
0.71
MPC
0.067
ClinPred
0.11
T
GERP RS
5.2
Varity_R
0.048
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs376327385; hg19: chr1-76280766; API