Variant chrX-38381324-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_000531.6(OTC):c.299-18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000841 in 832,805 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. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.0000084 ( 0 hom. 0 hem. )

Consequence

OTC
NM_000531.6 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -3.19

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]

OTC links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant X-38381324-C-T is Benign according to our data. Variant chrX-38381324-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 256368.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-38381324-C-T is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein
OTC	NM_000531.6 linkuse as main transcript	c.299-18C>T	intron_variant	ENST00000039007.5	NP_000522.3
OTC	NM_001407092.1 linkuse as main transcript	c.299-18C>T	intron_variant		NP_001394021.1
OTC	XM_017029556.2 linkuse as main transcript	c.299-18C>T	intron_variant		XP_016885045.1

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	Appris
OTC	ENST00000039007.5 linkuse as main transcript	c.299-18C>T	intron_variant	1	NM_000531.6	ENSP00000039007	P1
OTC	ENST00000643344.1 linkuse as main transcript	c.*49-18C>T	intron_variant, NMD_transcript_variant			ENSP00000496606
OTC	ENST00000488812.1 linkuse as main transcript	n.354-36C>T	intron_variant, non_coding_transcript_variant	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000634

AC:

AN:

94661

Hom.:

AF XY:

0.00

AC XY:

AN XY:

26857

show subpopulations

Gnomad AFR exome

AF:

0.000145

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000240

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000844

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000841

AC:

AN:

832805

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

259755

show subpopulations

Gnomad4 AFR exome

AF:

0.000103

Gnomad4 AMR exome

AF:

0.0000384

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:

0.00000471

Gnomad4 OTH exome

AF:

0.0000285

GnomAD4 genome

Cov.:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Ornithine carbamoyltransferase deficiency

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 17, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.094

DANN

Benign

0.20

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over