4-36068152-G-C

Variant summary

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

The NM_015230.4(ARAP2):ā€‹c.4870C>Gā€‹(p.Arg1624Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,576 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

ARAP2
NM_015230.4 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33
Variant links:
Genes affected
ARAP2 (HGNC:16924): (ArfGAP with RhoGAP domain, ankyrin repeat and PH domain 2) The protein encoded by this gene contains ARF-GAP, RHO-GAP, ankyrin repeat, RAS-associating, and pleckstrin homology domains. The protein is a phosphatidylinositol (3,4,5)-trisphosphate-dependent Arf6 GAP that binds RhoA-GTP, but it lacks the predicted catalytic arginine in the RHO-GAP domain and does not have RHO-GAP activity. The protein associates with focal adhesions and functions downstream of RhoA to regulate focal adhesion dynamics. [provided by RefSeq, Sep 2008]

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=0.22639519).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARAP2NM_015230.4 linkuse as main transcriptc.4870C>G p.Arg1624Gly missense_variant 33/33 ENST00000303965.9 NP_056045.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARAP2ENST00000303965.9 linkuse as main transcriptc.4870C>G p.Arg1624Gly missense_variant 33/331 NM_015230.4 ENSP00000302895 P1
ARAP2ENST00000503225.5 linkuse as main transcriptn.147+5537C>G intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461576
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727074
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsJan 23, 2024The c.4870C>G (p.R1624G) alteration is located in exon 33 (coding exon 32) of the ARAP2 gene. This alteration results from a C to G substitution at nucleotide position 4870, causing the arginine (R) at amino acid position 1624 to be replaced by a glycine (G). 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
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.022
T
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.23
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
0.53
D
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.14
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.012
D
Polyphen
0.98
D
Vest4
0.25
MutPred
0.18
Loss of MoRF binding (P = 0.018);
MVP
0.51
MPC
0.062
ClinPred
0.84
D
GERP RS
6.1
Varity_R
0.098
gMVP
0.37

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: chr4-36069774; API