Variant 17-9250601-C-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_004853.3(STX8):c.688G>C(p.Val230Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000419 in 1,599,020 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

STX8
NM_004853.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.61

Variant links:

Genes affected

STX8 (HGNC:11443): (syntaxin 8) The gene is a member of the syntaxin family. The encoded protein is involved in protein trafficking from early to late endosomes via vesicle fusion and exocytosis. A related pseudogene has been identified on chromosome 12. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2010]

STX8 links:

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=0.17962217).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
STX8	NM_004853.3 linkuse as main transcript	c.688G>C	p.Val230Leu	missense_variant	8/8	ENST00000306357.9	NP_004844.1
STX8	XM_011524079.2 linkuse as main transcript	c.523G>C	p.Val175Leu	missense_variant	6/6		XP_011522381.1
STX8	NR_033656.2 linkuse as main transcript	n.494G>C		non_coding_transcript_exon_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STX8	ENST00000306357.9 linkuse as main transcript	c.688G>C	p.Val230Leu	missense_variant	8/8	1	NM_004853.3	ENSP00000305255	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000263

AC:

AN:

228272

Hom.:

AF XY:

0.0000489

AC XY:

AN XY:

122608

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000486

Gnomad OTH exome

AF:

0.000176

GnomAD4 exome

AF:

0.0000442

AC:

AN:

1446856

Hom.:

Cov.:

AF XY:

0.0000474

AC XY:

AN XY:

717806

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000561

Gnomad4 OTH exome

AF:

0.0000334

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74326

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000340

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 22, 2022

The c.688G>C (p.V230L) alteration is located in exon 8 (coding exon 8) of the STX8 gene. This alteration results from a G to C substitution at nucleotide position 688, causing the valine (V) at amino acid position 230 to be replaced by a leucine (L). 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

Pathogenic

0.60

BayesDel_addAF

Benign

-0.090

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.069

T;.

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.41

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.86

D;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.18

T;T

MetaSVM

Benign

-0.88

MutationAssessor

Benign

1.6

L;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-1.8

N;.

REVEL

Benign

0.16

Sift

Benign

0.039

D;.

Sift4G

Uncertain

0.015

D;D

Polyphen

0.15

B;.

Vest4

0.50

MVP

0.28

MPC

0.028

ClinPred

0.10

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.21

gMVP

0.56

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