rs72558473

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000531.6(OTC):​c.958C>A​(p.Arg320=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000893 in 111,929 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. 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 0.0000089 ( 0 hom., 0 hem., cov: 23)

Consequence

OTC
NM_000531.6 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.08
Variant links:
Genes affected
OTC (HGNC:8512): (ornithine transcarbamylase) This nuclear gene encodes a mitochondrial matrix enzyme. The encoded protein is involved in the urea cycle which functions to detoxify ammonia into urea for excretion. Mutations in this enzyme lead to ornithine transcarbamylase deficiency, which causes hyperammonemia. [provided by RefSeq, May 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OTCNM_000531.6 linkuse as main transcriptc.958C>A p.Arg320= synonymous_variant 9/10 ENST00000039007.5 NP_000522.3
OTCNM_001407092.1 linkuse as main transcriptc.958C>A p.Arg320= synonymous_variant 11/12 NP_001394021.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OTCENST00000039007.5 linkuse as main transcriptc.958C>A p.Arg320= synonymous_variant 9/101 NM_000531.6 ENSP00000039007 P1
OTCENST00000643344.1 linkuse as main transcriptc.*708C>A 3_prime_UTR_variant, NMD_transcript_variant 10/11 ENSP00000496606

Frequencies

GnomAD3 genomes
AF:
0.00000893
AC:
1
AN:
111929
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34125
show subpopulations
Gnomad AFR
AF:
0.0000325
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
29
GnomAD4 genome
AF:
0.00000893
AC:
1
AN:
111929
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34125
show subpopulations
Gnomad4 AFR
AF:
0.0000325
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
3.8
DANN
Benign
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.32
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.32
Position offset: 47

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: rs72558473; hg19: chrX-38271205; API