20-3072358-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000915.4(OXT):​c.323-5T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0027 in 1,609,176 control chromosomes in the GnomAD database, including 113 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 71 hom., cov: 33)
Exomes 𝑓: 0.0014 ( 42 hom. )

Consequence

OXT
NM_000915.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00002232
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0380
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 20-3072358-T-C is Benign according to our data. Variant chr20-3072358-T-C is described in ClinVar as [Benign]. Clinvar id is 769991.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0506 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OXTNM_000915.4 linkuse as main transcriptc.323-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000217386.2 NP_000906.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OXTENST00000217386.2 linkuse as main transcriptc.323-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000915.4 ENSP00000217386 P1

Frequencies

GnomAD3 genomes
AF:
0.0152
AC:
2308
AN:
151964
Hom.:
71
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0525
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00747
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:
0.0000883
Gnomad OTH
AF:
0.00813
GnomAD3 exomes
AF:
0.00360
AC:
876
AN:
243514
Hom.:
25
AF XY:
0.00247
AC XY:
329
AN XY:
133220
show subpopulations
Gnomad AFR exome
AF:
0.0520
Gnomad AMR exome
AF:
0.00166
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000164
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000452
Gnomad OTH exome
AF:
0.000997
GnomAD4 exome
AF:
0.00140
AC:
2040
AN:
1457096
Hom.:
42
Cov.:
34
AF XY:
0.00119
AC XY:
862
AN XY:
725132
show subpopulations
Gnomad4 AFR exome
AF:
0.0510
Gnomad4 AMR exome
AF:
0.00233
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000197
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.00317
GnomAD4 genome
AF:
0.0152
AC:
2311
AN:
152080
Hom.:
71
Cov.:
33
AF XY:
0.0144
AC XY:
1071
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0524
Gnomad4 AMR
AF:
0.00740
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000883
Gnomad4 OTH
AF:
0.00804
Alfa
AF:
0.00666
Hom.:
7
Bravo
AF:
0.0171
Asia WGS
AF:
0.00260
AC:
9
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
4.5
DANN
Benign
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000022
dbscSNV1_RF
Benign
0.0040
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: rs114029030; hg19: chr20-3053004; API