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GeneBe

8-130112132-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 1P and 8B. PP2BP4_StrongBS2

The NM_018482.4(ASAP1):​c.2363C>T​(p.Thr788Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,614,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T788A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ASAP1
NM_018482.4 missense

Scores

2
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.53
Variant links:
Genes affected
ASAP1 (HGNC:2720): (ArfGAP with SH3 domain, ankyrin repeat and PH domain 1) This gene encodes an ADP-ribosylation factor (ARF) GTPase-activating protein. The GTPase-activating activity is stimulated by phosphatidylinositol 4,5-biphosphate (PIP2), and is greater towards ARF1 and ARF5, and lesser for ARF6. This gene maybe involved in regulation of membrane trafficking and cytoskeleton remodeling. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant where missense usually causes diseases, ASAP1
BP4
Computational evidence support a benign effect (MetaRNN=0.0063100755).
BS2
High AC in GnomAd4 at 19 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASAP1NM_018482.4 linkuse as main transcriptc.2363C>T p.Thr788Met missense_variant 24/30 ENST00000518721.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASAP1ENST00000518721.6 linkuse as main transcriptc.2363C>T p.Thr788Met missense_variant 24/305 NM_018482.4 P2Q9ULH1-1

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00403
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:
0.000478
GnomAD3 exomes
AF:
0.000263
AC:
66
AN:
251420
Hom.:
0
AF XY:
0.000250
AC XY:
34
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00506
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000704
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000105
AC:
153
AN:
1461868
Hom.:
0
Cov.:
30
AF XY:
0.000116
AC XY:
84
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00421
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.000364
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00403
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000630
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000272
AC:
33
EpiCase
AF:
0.000218
EpiControl
AF:
0.000178

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 submitterclinical testingAmbry GeneticsOct 26, 2021The c.2363C>T (p.T788M) alteration is located in exon 23 (coding exon 23) of the ASAP1 gene. This alteration results from a C to T substitution at nucleotide position 2363, causing the threonine (T) at amino acid position 788 to be replaced by a methionine (M). 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
0.073
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
20
DANN
Uncertain
0.98
DEOGEN2
Benign
0.037
T;T
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.55
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Benign
0.0072
T
MetaRNN
Benign
0.0063
T;T
MetaSVM
Benign
-0.95
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.32
T
REVEL
Benign
0.069
Sift4G
Benign
0.062
T;T
Polyphen
0.52
.;P
Vest4
0.19
MVP
0.25
MPC
0.25
ClinPred
0.025
T
GERP RS
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.020
gMVP
0.10

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.

Other links and lift over

dbSNP: rs147401049; hg19: chr8-131124378; COSMIC: COSV63046142; COSMIC: COSV63046142; API