NM_012233.3:c.2333G>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_012233.3(RAB3GAP1):​c.2333G>A​(p.Arg778Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000743 in 1,614,074 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R778W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000075 ( 1 hom. )

Consequence

RAB3GAP1
NM_012233.3 missense

Scores

1
5
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.28

Publications

3 publications found
Variant links:
Genes affected
RAB3GAP1 (HGNC:17063): (RAB3 GTPase activating protein catalytic subunit 1) This gene encodes the catalytic subunit of a Rab GTPase activating protein. The encoded protein forms a heterodimer with a non-catalytic subunit to specifically regulate the activity of members of the Rab3 subfamily of small G proteins. This protein mediates the hydrolysis of GTP bound Rab3 to the GDP bound form. Mutations in this gene are associated with Warburg micro syndrome. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Feb 2010]
ZRANB3 (HGNC:25249): (zinc finger RANBP2-type containing 3) Enables ATP-dependent DNA/DNA annealing activity; K63-linked polyubiquitin modification-dependent protein binding activity; and endodeoxyribonuclease activity. Involved in several processes, including DNA metabolic process; DNA rewinding; and negative regulation of DNA recombination. Located in nuclear replication fork and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.34169662).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012233.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RAB3GAP1
NM_012233.3
MANE Select
c.2333G>Ap.Arg778Gln
missense
Exon 20 of 24NP_036365.1B9A6J2
RAB3GAP1
NM_001172435.2
c.2333G>Ap.Arg778Gln
missense
Exon 20 of 25NP_001165906.1Q15042-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RAB3GAP1
ENST00000264158.13
TSL:1 MANE Select
c.2333G>Ap.Arg778Gln
missense
Exon 20 of 24ENSP00000264158.8Q15042-1
RAB3GAP1
ENST00000442034.5
TSL:1
c.2333G>Ap.Arg778Gln
missense
Exon 20 of 25ENSP00000411418.1Q15042-3
ZRANB3
ENST00000412849.5
TSL:1
n.1823C>T
non_coding_transcript_exon
Exon 12 of 14

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152164
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000159
AC:
40
AN:
251180
AF XY:
0.000192
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.000335
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000746
AC:
109
AN:
1461792
Hom.:
1
Cov.:
31
AF XY:
0.0000688
AC XY:
50
AN XY:
727182
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39692
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86234
European-Finnish (FIN)
AF:
0.0000749
AC:
4
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000881
AC:
98
AN:
1111970
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
8
15
23
30
38
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152282
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41542
American (AMR)
AF:
0.00
AC:
0
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4808
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.520
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000140
Hom.:
0
Bravo
AF:
0.000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000280
AC:
34
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Warburg micro syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.24
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.055
T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.97
D
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
L
PhyloP100
7.3
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-0.58
N
REVEL
Benign
0.15
Sift
Benign
0.51
T
Sift4G
Benign
0.64
T
Polyphen
1.0
D
Vest4
0.71
MVP
0.65
MPC
0.26
ClinPred
0.22
T
GERP RS
6.1
Varity_R
0.11
gMVP
0.39
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs146072589; hg19: chr2-135920168; COSMIC: COSV105073456; API