rs188522997

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM1PP3BS1_Supporting

The NM_012414.4(RAB3GAP2):c.1258C>T(p.Arg420Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000387 in 1,613,908 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 (★★). Synonymous variant affecting the same amino acid position (i.e. R420R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

RAB3GAP2
NM_012414.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 6.15

Publications

7 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

RAB3GAP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_012414.4

PP3

MetaRNN computational evidence supports a deleterious effect, 0.806

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000348 (53/152282) while in subpopulation NFE AF = 0.000617 (42/68030). AF 95% confidence interval is 0.000469. There are 0 homozygotes in GnomAd4. There are 30 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAB3GAP2	NM_012414.4	MANE Select	c.1258C>T	p.Arg420Cys	missense	Exon 13 of 35	NP_036546.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RAB3GAP2	ENST00000358951.7	TSL:1 MANE Select	c.1258C>T	p.Arg420Cys	missense	Exon 13 of 35	ENSP00000351832.2	Q9H2M9-1
RAB3GAP2	ENST00000692972.1		c.1333C>T	p.Arg445Cys	missense	Exon 14 of 36	ENSP00000510753.1	A0A8I5KZB3
RAB3GAP2	ENST00000691661.1		c.1270C>T	p.Arg424Cys	missense	Exon 13 of 35	ENSP00000510185.1	A0A8I5KYQ0

Frequencies

GnomAD3 genomes

AF:

0.000348

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000283

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000617

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000195

AC:

AN:

251122

AF XY:

0.000228

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000379

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000391

AC:

572

AN:

1461626

Hom.:

Cov.:

AF XY:

0.000386

AC XY:

281

AN XY:

727094

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33478

American (AMR)

AF:

0.000179

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.000116

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.000112

AC:

AN:

53374

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.000472

AC:

525

AN:

1111874

Other (OTH)

AF:

0.000298

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

122

152

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.000348

AC:

AN:

152282

Hom.:

Cov.:

AF XY:

0.000403

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.0000963

AC:

AN:

41552

American (AMR)

AF:

0.000262

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.000283

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000617

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000443

Hom.:

Bravo

AF:

0.000253

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000222

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000593

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Martsolf syndrome;C3280214:Warburg micro syndrome 2 (2)

Amenorrhea (1)

Martsolf syndrome (1)

not provided (1)

Warburg micro syndrome 2 (1)

Warburg micro syndrome 2;C5542298:Martsolf syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.86

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Pathogenic

0.44

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.58

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.86

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.81

MetaSVM

Uncertain

0.64

MutationAssessor

Pathogenic

3.2

PhyloP100

6.2

PrimateAI

Uncertain

0.77

PROVEAN

Pathogenic

-7.2

REVEL

Pathogenic

0.71

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.97

MVP

0.94

MPC

0.73

ClinPred

0.88

GERP RS

6.1

Varity_R

0.80

gMVP

0.83

Mutation Taster

=22/78

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over