RAP1GDS1 (RAP1, GTP-GDP dissociation stimulator 1)

2003-10-01   Franck Viguié 

Laboratoire de Cytogenetique - Service dHematologie Biologique, Hopital Hotel-Dieu - 75181 Paris Cedex 04, France

Identity

HGNC
LOCATION
4q23
LOCUSID
ALIAS
GDS1,SmgGDS
FUSION GENES

DNA/RNA

Description

181.2 kb - 15 exons

Transcription

mRNA 2487 bases

Proteins

Description

rap1gds, also refered as smgGDS - 61.1 kDa, 558 aa. Contains in major part an armadillo motif, which is composed of tandemly repeated sequences of 43 amino acid residues.

Expression

Ubiquitary, high level of expression in central nervous system.

Function

Acts as guanine nucleotide exchange factor (GEF). Activates GDP/GTP exchange reaction on numerous small proteins with GTPase activity (G proteins) containing a C-terminal polybasic region (PBR), including Ras and Rho family GTPases such as rap1a, rap1b, K-ras, rac1, rac2, rhoA, ralB. These proteins play a pivotal role in cell proliferation, differentiation and oncogenic transformation.

Homology

With other mammalian rap1gds1 proteins.

Implicated in

Entity name
Disease
T cell acute lymphocytic leukemia.
Cytogenetics
Additional anomalies in 2/3 cases.
Hybrid gene
Quasi totality of RAP1GDS1 fused with 5 part of NUP98.
Fusion protein
Chimeric protein 5 -NUP98 - RAP1GDS1 - 3.

Bibliography

Pubmed IDLast YearTitleAuthors
104777371999The (4;11)(q21;p15) translocation fuses the NUP98 and RAP1GDS1 genes and is recurrent in T-cell acute lymphocytic leukemia.Hussey DJ et al
109290312000t(4;11)(q21;p15) translocation involving NUP98 and RAP1GDS1 genes: characterization of a new subset of T acute lymphoblastic leukaemia.Mecucci C et al
119484272002SmgGDS displays differential binding and exchange activity towards different Ras isoforms.Vikis HG et al
75268401994Inhibition of adenylate cyclase activity by galanin in rat insulinoma cells is mediated by the G-protein Gi3.de Mazancourt P et al

Other Information

Locus ID:

NCBI: 5910
MIM: 179502
HGNC: 9859
Ensembl: ENSG00000138698

Variants:

dbSNP: 5910
ClinVar: 5910
TCGA: ENSG00000138698
COSMIC: RAP1GDS1

RNA/Proteins

Gene IDTranscript IDUniprot
ENSG00000138698ENST00000264572P52306
ENSG00000138698ENST00000339360P52306
ENSG00000138698ENST00000380158P52306
ENSG00000138698ENST00000408900P52306
ENSG00000138698ENST00000408927P52306
ENSG00000138698ENST00000453712P52306
ENSG00000138698ENST00000503667D6RC85
ENSG00000138698ENST00000508213D6RHH8
ENSG00000138698ENST00000508490D6RC12
ENSG00000138698ENST00000509011D6RHZ7
ENSG00000138698ENST00000509501H0Y8M2
ENSG00000138698ENST00000510870D6RBC6
ENSG00000138698ENST00000511212D6REZ0
ENSG00000138698ENST00000514122D6RB97
ENSG00000138698ENST00000514139U3KQJ4

Expression (GTEx)

0
10
20
30
40
50
60

Protein levels (Protein atlas)

Not detected
Low
Medium
High

References

Pubmed IDYearTitleCitations
214292112011Breast cancer cell migration is regulated through junctional adhesion molecule-A-mediated activation of Rap1 GTPase.42
207097482010Splice variants of SmgGDS control small GTPase prenylation and membrane localization.40
195462222009Epac activates the small G proteins Rap1 and Rab3A to achieve exocytosis.38
212423052011SmgGDS is a guanine nucleotide exchange factor that specifically activates RhoA and RhoC.32
192601412009Genome-wide association study of biochemical traits in Korcula Island, Croatia.30
179512442008SmgGDS regulates cell proliferation, migration, and NF-kappaB transcriptional activity in non-small cell lung carcinoma.26
146153752004Among circulating hematopoietic cells, B-CLL uniquely expresses functional EPAC1, but EPAC1-mediated Rap1 activation does not account for PDE4 inhibitor-induced apoptosis.23
236404852013Statins exert the pleiotropic effects through small GTP-binding protein dissociation stimulator upregulation with a resultant Rac1 degradation.20
201908162010Anaplastic lymphoma kinase activates the small GTPase Rap1 via the Rap1-specific GEF C3G in both neuroblastoma and PC12 cells.17
244157552014The chaperone protein SmgGDS interacts with small GTPases entering the prenylation pathway by recognizing the last amino acid in the CAAX motif.16

Citation

Franck Viguié

RAP1GDS1 (RAP1, GTP-GDP dissociation stimulator 1)

Atlas Genet Cytogenet Oncol Haematol. 2003-10-01

Online version: http://atlasgeneticsoncology.org/gene/400/rap1gds1id400