2-235494762-A-G

Position:

• chr2-235494762-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001037131.3(AGAP1):​c.76A>G​(p.Asn26Asp) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: AGAP1 NM_001037131.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.39

Genes affected

AGAP1 (HGNC:16922): (ArfGAP with GTPase domain, ankyrin repeat and PH domain 1) This gene encodes a member of an ADP-ribosylation factor GTPase-activating protein family involved in membrane trafficking and cytoskeleton dynamics. This gene functions as a direct regulator of the adaptor-related protein complex 3 on endosomes. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3511652).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AGAP1	NM_001037131.3	c.76A>G	p.Asn26Asp	missense_variant	1/18	ENST00000304032.13
AGAP1	NM_014914.5	c.76A>G	p.Asn26Asp	missense_variant	1/17
AGAP1	NM_001244888.2	c.76A>G	p.Asn26Asp	missense_variant	1/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AGAP1	ENST00000304032.13	c.76A>G	p.Asn26Asp	missense_variant	1/18	5	NM_001037131.3

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1426060 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 709434

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 29

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 01, 2022

This variant is not present in population databases (gnomAD no frequency). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with AGAP1-related conditions. This sequence change replaces asparagine, which is neutral and polar, with aspartic acid, which is acidic and polar, at codon 26 of the AGAP1 protein (p.Asn26Asp). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.75
BayesDel_addAF	Benign	-0.036	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.026	.;.;T
Eigen	Uncertain	0.28
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Benign	0.73	D
LIST_S2	Uncertain	0.92	D;D;D
M_CAP	Pathogenic	0.73	D
MetaRNN	Benign	0.35	T;T;T
MetaSVM	Uncertain	0.0051	D
MutationAssessor	Benign	1.7	L;L;L
MutationTaster	Benign	0.98	D;D;D
PrimateAI	Pathogenic	0.82	D
PROVEAN	Benign	-1.6	N;N;N
REVEL	Uncertain	0.29
Sift	Uncertain	0.026	D;D;T
Sift4G	Uncertain	0.040	D;D;D
Polyphen		0.98, 0.32	.;D;B
Vest4		0.25
MutPred		0.30		Loss of helix (P = 0.0196);Loss of helix (P = 0.0196);Loss of helix (P = 0.0196);
MVP		0.85
MPC		0.67
ClinPred		0.78	D
GERP RS		4.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7
Varity_R		0.14
gMVP		0.59

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-236403406;