rs749444902

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_012414.4(RAB3GAP2):​c.467T>C​(p.Ile156Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,613,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

RAB3GAP2
NM_012414.4 missense

Scores

7
7
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.36

Publications

0 publications found
Variant links:
Genes affected
RAB3GAP2 (HGNC:17168): (RAB3 GTPase activating non-catalytic protein subunit 2) The protein encoded by this gene belongs to the RAB3 protein family, members of which are involved in regulated exocytosis of neurotransmitters and hormones. This protein forms the Rab3 GTPase-activating complex with RAB3GAP1, where it constitutes the regulatory subunit, whereas the latter functions as the catalytic subunit. This gene has the highest level of expression in the brain, consistent with it having a key role in neurodevelopment. Mutations in this gene are associated with Martsolf syndrome.[provided by RefSeq, Oct 2009]
RAB3GAP2 Gene-Disease associations (from GenCC):
  • Martsolf syndrome 1
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • RAB18 deficiency
    Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
  • Warburg micro syndrome
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Warburg micro syndrome 2
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • autosomal recessive spastic paraplegia type 69
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • cataract-intellectual disability-hypogonadism syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PP3
MetaRNN computational evidence supports a deleterious effect, 0.834

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012414.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RAB3GAP2
NM_012414.4
MANE Select
c.467T>Cp.Ile156Thr
missense
Exon 6 of 35NP_036546.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RAB3GAP2
ENST00000358951.7
TSL:1 MANE Select
c.467T>Cp.Ile156Thr
missense
Exon 6 of 35ENSP00000351832.2Q9H2M9-1
RAB3GAP2
ENST00000692972.1
c.467T>Cp.Ile156Thr
missense
Exon 6 of 36ENSP00000510753.1A0A8I5KZB3
RAB3GAP2
ENST00000691661.1
c.479T>Cp.Ile160Thr
missense
Exon 6 of 35ENSP00000510185.1A0A8I5KYQ0

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000479
AC:
12
AN:
250628
AF XY:
0.0000517
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000795
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000506
AC:
74
AN:
1461542
Hom.:
0
Cov.:
32
AF XY:
0.0000564
AC XY:
41
AN XY:
727068
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33474
American (AMR)
AF:
0.0000447
AC:
2
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39582
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86220
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53408
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000540
AC:
60
AN:
1111858
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74350
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.555
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.000102
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.000382
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
Martsolf syndrome (1)
-
1
-
Martsolf syndrome;C3280214:Warburg micro syndrome 2 (1)
-
1
-
not provided (1)
-
1
-
Warburg micro syndrome 2 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.29
T
Eigen
Pathogenic
0.73
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.015
T
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.50
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
8.4
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-4.0
D
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0040
D
Polyphen
0.99
D
Vest4
0.92
MVP
0.36
MPC
0.20
ClinPred
0.47
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.65
gMVP
0.80
Mutation Taster
=45/55
disease causing

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

Other links and lift over

dbSNP: rs749444902; hg19: chr1-220384186; API