3-8767789-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000916.4(OXTR):​c.399G>A​(p.Met133Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,607,794 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

OXTR
NM_000916.4 missense

Scores

3
13
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.82
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 18 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OXTRNM_000916.4 linkuse as main transcriptc.399G>A p.Met133Ile missense_variant 3/4 ENST00000316793.8 NP_000907.2 P30559B2R9L7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OXTRENST00000316793.8 linkuse as main transcriptc.399G>A p.Met133Ile missense_variant 3/41 NM_000916.4 ENSP00000324270.2 P30559
CAV3ENST00000472766.1 linkuse as main transcriptn.156-9688C>T intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
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
GnomAD3 exomes
AF:
0.00000849
AC:
2
AN:
235670
Hom.:
0
AF XY:
0.00000780
AC XY:
1
AN XY:
128186
show subpopulations
Gnomad AFR exome
AF:
0.0000692
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000957
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000124
AC:
18
AN:
1455616
Hom.:
0
Cov.:
60
AF XY:
0.0000111
AC XY:
8
AN XY:
723454
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
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:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74340
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:
0.0000302
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 12, 2023The c.399G>A (p.M133I) alteration is located in exon 3 (coding exon 1) of the OXTR gene. This alteration results from a G to A substitution at nucleotide position 399, causing the methionine (M) at amino acid position 133 to be replaced by an isoleucine (I). 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
Pathogenic
0.95
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
30
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.53
D
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.14
D
MetaRNN
Uncertain
0.74
D
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.78
T
PROVEAN
Uncertain
-3.8
D
REVEL
Uncertain
0.44
Sift
Uncertain
0.0080
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.80
MutPred
0.48
Gain of catalytic residue at D136 (P = 0.3991);
MVP
0.62
MPC
1.6
ClinPred
0.95
D
GERP RS
5.0
Varity_R
0.92
gMVP
0.80

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.

Other links and lift over

dbSNP: rs201782300; hg19: chr3-8809475; COSMIC: COSV57479320; COSMIC: COSV57479320; API