rs237894

chr3-8764845-G-C

Variant summary

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

The NM_000916.4(OXTR):c.922+2421C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.218 in 152,098 control chromosomes in the GnomAD database, including 4,113 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 0.22 (4113 hom., cov: 33)
• Consequence: OXTR NM_000916.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.108

Genes affected

OXTR (HGNC:8529): (oxytocin receptor) The protein encoded by this gene belongs to the G-protein coupled receptor family and acts as a receptor for oxytocin. Its activity is mediated by G proteins which activate a phosphatidylinositol-calcium second messenger system. The oxytocin-oxytocin receptor system plays an important role in the uterus during parturition. [provided by RefSeq, Jul 2008]

CAV3 (HGNC:1529): (caveolin 3) This gene encodes a caveolin family member, which functions as a component of the caveolae plasma membranes found in most cell types. Caveolin proteins are proposed to be scaffolding proteins for organizing and concentrating certain caveolin-interacting molecules. Mutations identified in this gene lead to interference with protein oligomerization or intra-cellular routing, disrupting caveolae formation and resulting in Limb-Girdle muscular dystrophy type-1C (LGMD-1C), hyperCKemia or rippling muscle disease (RMD). Alternative splicing has been identified for this locus, with inclusion or exclusion of a differentially spliced intron. In addition, transcripts utilize multiple polyA sites and contain two potential translation initiation sites. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.284 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OXTR	NM_000916.4	c.922+2421C>G		intron_variant		ENST00000316793.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OXTR	ENST00000316793.8	c.922+2421C>G		intron_variant		1	NM_000916.4	P1
CAV3	ENST00000472766.1	n.156-12632G>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.218 AC: 33172 AN: 151980 Hom.: 4116 Cov.: 33

Gnomad AFR AF: 0.117

Gnomad AMI AF: 0.462

Gnomad AMR AF: 0.187

Gnomad ASJ AF: 0.296

Gnomad EAS AF: 0.0380

Gnomad SAS AF: 0.267

Gnomad FIN AF: 0.234

Gnomad MID AF: 0.272

Gnomad NFE AF: 0.287

Gnomad OTH AF: 0.231

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

GnomAD4 genome AF: 0.218 AC: 33171 AN: 152098 Hom.: 4113 Cov.: 33 AF XY: 0.215 AC XY: 16019 AN XY: 74356

Gnomad4 AFR AF: 0.117

Gnomad4 AMR AF: 0.187

Gnomad4 ASJ AF: 0.296

Gnomad4 EAS AF: 0.0377

Gnomad4 SAS AF: 0.267

Gnomad4 FIN AF: 0.234

Gnomad4 NFE AF: 0.287

Gnomad4 OTH AF: 0.229

Alfa AF: 0.241 Hom.: 587

Bravo AF: 0.209

Asia WGS AF: 0.149 AC: 516 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
Cadd	Benign	4.7
Dann	Benign	0.71

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs237894; hg19: chr3-8806531;