Genetic Variant AGAP6:p.Asp228Val (chr10-50008808-A-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001077665.3(AGAP6):c.683A>T(p.Asp228Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

AGAP6
NM_001077665.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.58

Variant links:

Genes affected

AGAP6 (HGNC:23466): (ArfGAP with GTPase domain, ankyrin repeat and PH domain 6) Predicted to enable GTPase activator activity and metal ion binding activity. Predicted to be involved in regulation of catalytic activity. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

AGAP6 links:

TIMM23B-AGAP6 (HGNC:45009): (TIMM23B-AGAP6 readthrough (NMD candidate)) This locus represents naturally-occurring readthrough transcription between the adjacent TIMM23B (translocase of inner mitochondrial membrane 23 homolog B) and AGAP6 (ArfGAP with GTPase domain, ankyrin repeat and PH domain 6) genes. Readthrough transcripts contain portions of the coding sequence for both genes and are predicted to be candidates for nonsense-mediated decay (NMD). [provided by RefSeq, Sep 2018]

TIMM23B-AGAP6 links:

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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=0.20164746).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGAP6	NM_001077665.3 link	c.683A>T	p.Asp228Val	missense_variant	Exon 8 of 8	ENST00000412531.7	NP_001071133.2	Q5VW22-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AGAP6	ENST00000412531.7 link	c.683A>T	p.Asp228Val	missense_variant	Exon 8 of 8	1	NM_001077665.3	ENSP00000500374.1	Q5VW22-2
TIMM23B-AGAP6	ENST00000651763.1 link	n.*898A>T		non_coding_transcript_exon_variant	Exon 17 of 18			ENSP00000502214.1
TIMM23B-AGAP6	ENST00000651763.1 link	n.*898A>T		3_prime_UTR_variant	Exon 17 of 18			ENSP00000502214.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000527

AC:

AN:

189746

Hom.:

AF XY:

0.00000962

AC XY:

AN XY:

103946

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:

0.0000113

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

6.84e-7

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000852

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.683A>T (p.D228V) alteration is located in exon 8 (coding exon 8) of the AGAP6 gene. This alteration results from a A to T substitution at nucleotide position 683, causing the aspartic acid (D) at amino acid position 228 to be replaced by a valine (V). 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

0.11

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.061

.;T;.

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.49

LIST_S2

Benign

0.76

.;T;T

M_CAP

Benign

0.0063

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.1

.;M;.

PrimateAI

Uncertain

0.62

REVEL

Benign

0.15

Sift4G

Uncertain

0.0050

D;D;D

Vest4

0.17

MVP

0.25

ClinPred

0.80

GERP RS

0.046

Varity_R

0.57

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