3-8767482-C-T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000916.4(OXTR):​c.706G>A​(p.Ala236Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000747 in 1,606,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A236D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

OXTR
NM_000916.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.42

Publications

0 publications found
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]
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]
CAV3 Gene-Disease associations (from GenCC):
  • caveolinopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal dominant limb-girdle muscular dystrophy type 1C
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • long QT syndrome 9
    Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • rippling muscle disease 2
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • distal myopathy, Tateyama type
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • inherited rippling muscle disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Brugada syndrome
    Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp
  • hypertrophic cardiomyopathy 1
    Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia
  • long QT syndrome
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.108641446).
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OXTRNM_000916.4 linkc.706G>A p.Ala236Thr missense_variant Exon 3 of 4 ENST00000316793.8 NP_000907.2 P30559B2R9L7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OXTRENST00000316793.8 linkc.706G>A p.Ala236Thr missense_variant Exon 3 of 4 1 NM_000916.4 ENSP00000324270.2 P30559
CAV3ENST00000472766.1 linkn.156-9995C>T intron_variant Intron 1 of 2 2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000688
AC:
10
AN:
1454168
Hom.:
0
Cov.:
30
AF XY:
0.00000692
AC XY:
5
AN XY:
722782
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33258
American (AMR)
AF:
0.00
AC:
0
AN:
43622
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25928
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39446
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85518
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52066
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00000902
AC:
10
AN:
1108522
Other (OTH)
AF:
0.00
AC:
0
AN:
60052
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 15, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.706G>A (p.A236T) 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 706, causing the alanine (A) at amino acid position 236 to be replaced by a threonine (T). 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
0.085
BayesDel_addAF
Benign
-0.046
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.074
T
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.31
N
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.3
L
PhyloP100
1.4
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.51
N
REVEL
Benign
0.11
Sift
Benign
0.23
T
Sift4G
Benign
0.53
T
Polyphen
0.46
P
Vest4
0.077
MutPred
0.43
Gain of glycosylation at T235 (P = 0.0817);
MVP
0.64
MPC
0.60
ClinPred
0.39
T
GERP RS
4.4
Varity_R
0.15
gMVP
0.77
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs1189532457; hg19: chr3-8809168; API