rs12112229

Positions:

• chr7-5996884-C-A
• chr7-5996884-C-G
• chr7-5996884-C-T

Variant summary

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

The NM_000535.7(PMS2):​c.803+442G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.319 in 151,802 control chromosomes in the GnomAD database, including 9,213 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 0.32 (9213 hom., cov: 30)
• Consequence: PMS2 NM_000535.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.309

Genes affected

PMS2 (HGNC:9122): (PMS1 homolog 2, mismatch repair system component) The protein encoded by this gene is a key component of the mismatch repair system that functions to correct DNA mismatches and small insertions and deletions that can occur during DNA replication and homologous recombination. This protein forms heterodimers with the gene product of the mutL homolog 1 (MLH1) gene to form the MutL-alpha heterodimer. The MutL-alpha heterodimer possesses an endonucleolytic activity that is activated following recognition of mismatches and insertion/deletion loops by the MutS-alpha and MutS-beta heterodimers, and is necessary for removal of the mismatched DNA. There is a DQHA(X)2E(X)4E motif found at the C-terminus of the protein encoded by this gene that forms part of the active site of the nuclease. Mutations in this gene have been associated with hereditary nonpolyposis colorectal cancer (HNPCC; also known as Lynch syndrome) and Turcot syndrome. [provided by RefSeq, Apr 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.525 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PMS2	NM_000535.7	c.803+442G>T		intron_variant		ENST00000265849.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PMS2	ENST00000265849.12	c.803+442G>T		intron_variant		1	NM_000535.7	P3

Frequencies

GnomAD3 genomes AF: 0.319 AC: 48398 AN: 151684 Hom.: 9202 Cov.: 30

Gnomad AFR AF: 0.532

Gnomad AMI AF: 0.415

Gnomad AMR AF: 0.236

Gnomad ASJ AF: 0.262

Gnomad EAS AF: 0.0939

Gnomad SAS AF: 0.190

Gnomad FIN AF: 0.252

Gnomad MID AF: 0.190

Gnomad NFE AF: 0.248

Gnomad OTH AF: 0.291

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

GnomAD4 genome AF: 0.319 AC: 48437 AN: 151802 Hom.: 9213 Cov.: 30 AF XY: 0.315 AC XY: 23380 AN XY: 74182

Gnomad4 AFR AF: 0.531

Gnomad4 AMR AF: 0.235

Gnomad4 ASJ AF: 0.262

Gnomad4 EAS AF: 0.0931

Gnomad4 SAS AF: 0.189

Gnomad4 FIN AF: 0.252

Gnomad4 NFE AF: 0.248

Gnomad4 OTH AF: 0.291

Alfa AF: 0.246 Hom.: 6591

Bravo AF: 0.328

Asia WGS AF: 0.172 AC: 600 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	6.7
DANN	Benign	0.33

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: rs12112229; hg19: chr7-6036515;