Variant chr2-235494853-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001037131.3(AGAP1):c.163+4A>T variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000474 in 1,562,286 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000050 ( 1 hom. )

Consequence

AGAP1
NM_001037131.3 splice_donor_region, intron

Scores

Splicing: ADA: 0.9996

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.17

Variant links:

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]

AGAP1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE
AGAP1	NM_001037131.3 linkuse as main transcript	c.163+4A>T	splice_donor_region_variant, intron_variant	ENST00000304032.13
AGAP1	NM_001244888.2 linkuse as main transcript	c.163+4A>T	splice_donor_region_variant, intron_variant
AGAP1	NM_014914.5 linkuse as main transcript	c.163+4A>T	splice_donor_region_variant, intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AGAP1	ENST00000304032.13 linkuse as main transcript	c.163+4A>T		splice_donor_region_variant, intron_variant		5	NM_001037131.3		Q9UPQ3-1

Frequencies

GnomAD3 genomes

AF:

0.0000266

AC:

AN:

150516

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000579

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000296

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000519

AC:

AN:

211798

Hom.:

AF XY:

0.0000429

AC XY:

AN XY:

116492

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000899

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000310

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000496

AC:

AN:

1411770

Hom.:

Cov.:

AF XY:

0.0000513

AC XY:

AN XY:

702362

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000253

Gnomad4 ASJ exome

AF:

0.00106

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000304

Gnomad4 OTH exome

AF:

0.000138

GnomAD4 genome

AF:

0.0000266

AC:

AN:

150516

Hom.:

Cov.:

AF XY:

0.0000408

AC XY:

AN XY:

73486

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000579

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000296

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000158

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 29, 2023

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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. ClinVar contains an entry for this variant (Variation ID: 1972441). This variant has not been reported in the literature in individuals affected with AGAP1-related conditions. This variant is present in population databases (rs200114461, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This sequence change falls in intron 1 of the AGAP1 gene. It does not directly change the encoded amino acid sequence of the AGAP1 protein. It affects a nucleotide within the consensus splice site. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Benign

0.97

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.4

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.82

SpliceAI score (max)

0.15

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