Variant chr1-231337170-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_175876.5(EXOC8):c.576C>T(p.Tyr192=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00232 in 1,614,090 control chromosomes in the GnomAD database, including 75 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.012 ( 43 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 32 hom. )

Consequence

EXOC8
NM_175876.5 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.399

Variant links:

Genes affected

EXOC8 (HGNC:24659): (exocyst complex component 8) This gene encodes a component of the exocyst complex, an evolutionarily conserved multi-protein complex that plays a critical role in vesicular trafficking and the secretory pathway by targeting post-Golgi vesicles to the plasma membrane. This protein is a target of activated Ral subfamily of GTPases and thereby regulates exocytosis by tethering vesicles to the plasma membrane. Mutations in this gene may be related to Joubert syndrome. [provided by RefSeq, Sep 2016]

EXOC8 links:

SPRTN (HGNC:25356): (SprT-like N-terminal domain) The protein encoded by this gene may play a role in DNA repair during replication of damaged DNA. This protein recruits valosin containing protein (p97) to stalled DNA replication forks where it may prevent excessive translesional DNA synthesis and limit the number of DNA-damage induced mutations. It may also be involved in replication-related G2/M-checkpoint regulation. Deficiency of a similar protein in mouse causes chromosomal instability and progeroid phenotypes. Mutations in this gene have been associated with Ruijs-Aalfs syndrome (RJALS). Alternatively spliced transcript variants have been identified. [provided by RefSeq, Mar 2015]

SPRTN links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

BP6

Variant 1-231337170-G-A is Benign according to our data. Variant chr1-231337170-G-A is described in ClinVar as [Benign]. Clinvar id is 780326.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.399 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0123 (1872/152288) while in subpopulation AFR AF= 0.0425 (1766/41536). AF 95% confidence interval is 0.0409. There are 43 homozygotes in gnomad4. There are 880 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 43 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EXOC8	NM_175876.5 linkuse as main transcript	c.576C>T	p.Tyr192=	synonymous_variant	1/1	ENST00000366645.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EXOC8	ENST00000366645.1 linkuse as main transcript	c.576C>T	p.Tyr192=	synonymous_variant	1/1		NM_175876.5	P1
SPRTN	ENST00000391858.8 linkuse as main transcript	c.-1214G>A		5_prime_UTR_variant	1/4	1			Q9H040-2

Frequencies

GnomAD3 genomes

AF:

0.0123

AC:

1870

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0426

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00511

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:

0.0000882

Gnomad OTH

AF:

0.0105

GnomAD3 exomes

AF:

0.00313

AC:

787

AN:

251278

Hom.:

AF XY:

0.00233

AC XY:

317

AN XY:

135852

show subpopulations

Gnomad AFR exome

AF:

0.0444

Gnomad AMR exome

AF:

0.00116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00179

GnomAD4 exome

AF:

0.00128

AC:

1874

AN:

1461802

Hom.:

Cov.:

AF XY:

0.00110

AC XY:

803

AN XY:

727206

show subpopulations

Gnomad4 AFR exome

AF:

0.0450

Gnomad4 AMR exome

AF:

0.00148

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.00255

GnomAD4 genome

AF:

0.0123

AC:

1872

AN:

152288

Hom.:

Cov.:

AF XY:

0.0118

AC XY:

880

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0425

Gnomad4 AMR

AF:

0.00510

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.0104

Alfa

AF:

0.00588

Hom.:

Bravo

AF:

0.0137

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

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 submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 27, 2023	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Benign

0.73

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.

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