12-49990711-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001319999.2(RACGAP1):​c.1796G>A​(p.Arg599His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000508 in 1,613,514 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 (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

RACGAP1
NM_001319999.2 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.420
Variant links:
Genes affected
RACGAP1 (HGNC:9804): (Rac GTPase activating protein 1) This gene encodes a GTPase-activating protein (GAP) that is a compoment of the centralspindlin complex. This protein binds activated forms of Rho GTPases and stimulates GTP hydrolysis, which results in negative regulation of Rho-mediated signals. This protein plays a regulatory role in cytokinesis, cell growth, and differentiation. Alternatively spliced transcript variants have been found for this gene. There is a pseudogene for this gene on chromosome 12. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.064172626).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RACGAP1NM_001319999.2 linkuse as main transcriptc.1796G>A p.Arg599His missense_variant 16/17 ENST00000312377.10 NP_001306928.1 Q9H0H5A0A024R136

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RACGAP1ENST00000312377.10 linkuse as main transcriptc.1796G>A p.Arg599His missense_variant 16/171 NM_001319999.2 ENSP00000309871.5 Q9H0H5

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152060
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251358
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135856
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
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:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000506
AC:
74
AN:
1461454
Hom.:
0
Cov.:
30
AF XY:
0.0000509
AC XY:
37
AN XY:
727058
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000612
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152060
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74258
show subpopulations
Gnomad4 AFR
AF:
0.0000966
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000567
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsMar 18, 2024The c.1796G>A (p.R599H) alteration is located in exon 18 (coding exon 15) of the RACGAP1 gene. This alteration results from a G to A substitution at nucleotide position 1796, causing the arginine (R) at amino acid position 599 to be replaced by a histidine (H). 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
0.18
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.19
T;T;T;T;T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.28
N
LIST_S2
Uncertain
0.95
.;.;.;.;D
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.064
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L;L;L;L;L
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.63
N;N;N;N;N
REVEL
Benign
0.060
Sift
Benign
0.50
T;T;T;T;T
Sift4G
Benign
0.54
T;T;T;T;T
Polyphen
0.031
B;B;B;B;B
Vest4
0.063
MVP
0.62
ClinPred
0.20
T
GERP RS
5.4
Varity_R
0.090
gMVP
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs374374601; hg19: chr12-50384494; API