rs1146644

chr1-75799103-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002440.4(MSH4):c.244+1874T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.595 in 152,056 control chromosomes in the GnomAD database, including 28,279 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.59 (28279 hom., cov: 32)
• Consequence: MSH4 NM_002440.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.826

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.721 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MSH4	NM_002440.4	c.244+1874T>C		intron_variant		ENST00000263187.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MSH4	ENST00000263187.4	c.244+1874T>C		intron_variant		1	NM_002440.4	P1

Frequencies

GnomAD3 genomes AF: 0.595 AC: 90417 AN: 151938 Hom.: 28269 Cov.: 32

Gnomad AFR AF: 0.729

Gnomad AMI AF: 0.400

Gnomad AMR AF: 0.561

Gnomad ASJ AF: 0.632

Gnomad EAS AF: 0.0461

Gnomad SAS AF: 0.415

Gnomad FIN AF: 0.565

Gnomad MID AF: 0.687

Gnomad NFE AF: 0.580

Gnomad OTH AF: 0.615

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.595 AC: 90454 AN: 152056 Hom.: 28279 Cov.: 32 AF XY: 0.588 AC XY: 43710 AN XY: 74328

Gnomad4 AFR AF: 0.728

Gnomad4 AMR AF: 0.560

Gnomad4 ASJ AF: 0.632

Gnomad4 EAS AF: 0.0462

Gnomad4 SAS AF: 0.414

Gnomad4 FIN AF: 0.565

Gnomad4 NFE AF: 0.580

Gnomad4 OTH AF: 0.619

Alfa AF: 0.587 Hom.: 5266

Bravo AF: 0.600

Asia WGS AF: 0.325 AC: 1131 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
Cadd	Benign	0.31
Dann	Benign	0.68
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs1146644; hg19: chr1-76264788;