Variant 1-92129737-G-A 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_001376131.1(BTBD8):c.713G>A(p.Cys238Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000185 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

BTBD8
NM_001376131.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.78

Variant links:

Genes affected

BTBD8 (HGNC:21019): (BTB domain containing 8) Predicted to be involved in clathrin-dependent synaptic vesicle endocytosis; neuron projection development; and synaptic vesicle budding from endosome. Located in nucleoplasm. Colocalizes with AP-2 adaptor complex. [provided by Alliance of Genome Resources, Apr 2022]

BTBD8 links:

BTBD8 (HGNC:):

BTBD8 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=0.24842736).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BTBD8	NM_001376131.1 linkuse as main transcript	c.713G>A	p.Cys238Tyr	missense_variant	5/18	ENST00000636805.2	NP_001363060.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BTBD8	ENST00000636805.2 linkuse as main transcript	c.713G>A	p.Cys238Tyr	missense_variant	5/18	5	NM_001376131.1	ENSP00000490161.1		Q5XKL5-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251478

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135910

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:

0.000261

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1461846

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727226

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:

0.000267

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000412

AC:

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

Jul 02, 2024

The c.713G>A (p.C238Y) alteration is located in exon 5 (coding exon 5) of the BTBD8 gene. This alteration results from a G to A substitution at nucleotide position 713, causing the cysteine (C) at amino acid position 238 to be replaced by a tyrosine (Y). 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

Benign

0.17

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.10

CADD

Benign

DANN

Benign

0.77

DEOGEN2

Benign

0.22

.;T

Eigen

Benign

0.079

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.67

T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.25

T;T

MetaSVM

Benign

-0.87

MutationAssessor

Benign

1.5

.;L

PrimateAI

Benign

0.40

PROVEAN

Benign

-2.1

.;N

REVEL

Benign

0.25

Sift

Benign

0.21

.;T

Sift4G

Uncertain

0.012

.;D

Polyphen

0.016

.;B

Vest4

0.18

MutPred

0.45

Loss of catalytic residue at S242 (P = 0.0342);Loss of catalytic residue at S242 (P = 0.0342);

MVP

0.78

MPC

0.36

ClinPred

0.078

GERP RS

5.8

Varity_R

0.13

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