20-3071669-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000915.4(OXT):​c.14G>A​(p.Ser5Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000568 in 1,601,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

OXT
NM_000915.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.02
Variant links:
Genes affected
OXT (HGNC:8528): (oxytocin/neurophysin I prepropeptide) This gene encodes a precursor protein that is processed to produce oxytocin and neurophysin I. Oxytocin is a posterior pituitary hormone which is synthesized as an inactive precursor in the hypothalamus along with its carrier protein neurophysin I. Together with neurophysin, it is packaged into neurosecretory vesicles and transported axonally to the nerve endings in the neurohypophysis, where it is either stored or secreted into the bloodstream. The precursor seems to be activated while it is being transported along the axon to the posterior pituitary. This hormone contracts smooth muscle during parturition and lactation. It is also involved in cognition, tolerance, adaptation and complex sexual and maternal behaviour, as well as in the regulation of water excretion and cardiovascular functions. [provided by RefSeq, Dec 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22728771).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OXTNM_000915.4 linkc.14G>A p.Ser5Asn missense_variant Exon 1 of 3 ENST00000217386.2 NP_000906.1 P01178X5D7M6
LOC101929098XR_430278.4 linkn.103+528C>T intron_variant Intron 1 of 1
LOC101929098XR_007067503.1 linkn.-46C>T upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OXTENST00000217386.2 linkc.14G>A p.Ser5Asn missense_variant Exon 1 of 3 1 NM_000915.4 ENSP00000217386.2 P01178

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152090
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000406
AC:
9
AN:
221660
Hom.:
0
AF XY:
0.0000328
AC XY:
4
AN XY:
122034
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000298
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:
0.0000809
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000566
AC:
82
AN:
1449102
Hom.:
0
Cov.:
31
AF XY:
0.0000555
AC XY:
40
AN XY:
720680
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000226
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:
0.0000730
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000592
AC:
9
AN:
152090
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000130
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000415
AC:
5

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jul 01, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.14G>A (p.S5N) alteration is located in exon 1 (coding exon 1) of the OXT gene. This alteration results from a G to A substitution at nucleotide position 14, causing the serine (S) at amino acid position 5 to be replaced by an asparagine (N). 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
0.16
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.38
T
Eigen
Benign
-0.13
Eigen_PC
Benign
-0.049
FATHMM_MKL
Benign
0.19
N
LIST_S2
Benign
0.66
T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.23
T
MetaSVM
Uncertain
0.50
D
MutationAssessor
Uncertain
2.2
M
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.5
N
REVEL
Uncertain
0.33
Sift
Benign
0.16
T
Sift4G
Benign
0.34
T
Polyphen
0.36
B
Vest4
0.36
MVP
0.74
MPC
0.54
ClinPred
0.11
T
GERP RS
5.4
Varity_R
0.21
gMVP
0.59

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: rs375773351; hg19: chr20-3052315; API