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Aliases for GDI1 Gene

Aliases for GDI1 Gene

  • GDP Dissociation Inhibitor 1 2 3
  • Guanosine Diphosphate Dissociation Inhibitor 1 3 4
  • Oligophrenin-2 3 4
  • Protein XAP-4 3 4
  • Rab GDI Alpha 3 4
  • RABGD1A 3 6
  • RABGDIA 3 4
  • MRX41 3 6
  • MRX48 3 6
  • GDI-1 3 4
  • OPHN2 3 4
  • GDIL 3 4
  • Rab GDP-Dissociation Inhibitor, Alpha 3
  • Rab GDP Dissociation Inhibitor Alpha 3
  • Mental Retardation, X-Linked 48 3
  • Rab GDP-Dissociation Inhibitor 2
  • Mental Retardation 2
  • X-Linked 41 2
  • X-Linked 48 2
  • Alpha 2
  • XAP-4 3
  • XAP4 4
  • 1A 3

External Ids for GDI1 Gene

Previous HGNC Symbols for GDI1 Gene

  • MRX48
  • MRX41
  • GDIL

Previous GeneCards Identifiers for GDI1 Gene

  • GC0XP147728
  • GC0XP150046
  • GC0XP151251
  • GC0XP152133
  • GC0XP153234
  • GC0XP153318
  • GC0XP153665
  • GC0XP142218

Summaries for GDI1 Gene

Entrez Gene Summary for GDI1 Gene

  • GDP dissociation inhibitors are proteins that regulate the GDP-GTP exchange reaction of members of the rab family, small GTP-binding proteins of the ras superfamily, that are involved in vesicular trafficking of molecules between cellular organelles. GDIs slow the rate of dissociation of GDP from rab proteins and release GDP from membrane-bound rabs. GDI1 is expressed primarily in neural and sensory tissues. Mutations in GDI1 have been linked to X-linked nonspecific mental retardation. [provided by RefSeq, Jul 2008]

GeneCards Summary for GDI1 Gene

GDI1 (GDP Dissociation Inhibitor 1) is a Protein Coding gene. Diseases associated with GDI1 include tumor of exocrine pancreas and mental retardation. Among its related pathways are Signaling by GPCR and Rho GTPase cycle. GO annotations related to this gene include GTPase activator activity and GDP-dissociation inhibitor activity. An important paralog of this gene is CHML.

UniProtKB/Swiss-Prot for GDI1 Gene

  • Regulates the GDP/GTP exchange reaction of most Rab proteins by inhibiting the dissociation of GDP from them, and the subsequent binding of GTP to them. Promotes the dissociation of GDP-bound Rab proteins from the membrane and inhibits their activation. Promotes the dissociation of RAB1A, RAB3A, RAB5A and RAB10 from membranes.

Gene Wiki entry for GDI1 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for GDI1 Gene

Genomics for GDI1 Gene

Regulatory Elements for GDI1 Gene

Epigenetics Products

  • DNA Methylation CpG Assay Predesigned for Pyrosequencing in human,mouse,rat

Genomic Location for GDI1 Gene

154,436,913 bp from pter
154,443,467 bp from pter
6,555 bases
Plus strand

Genomic View for GDI1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for GDI1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for GDI1 Gene

Proteins for GDI1 Gene

  • Protein details for GDI1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Rab GDP dissociation inhibitor alpha
    Protein Accession:
    Secondary Accessions:
    • P50394
    • Q6FG50
    • Q7Z2G6
    • Q7Z2G9
    • Q7Z2H5
    • Q7Z2I6

    Protein attributes for GDI1 Gene

    447 amino acids
    Molecular mass:
    50583 Da
    Quaternary structure:
    • Interacts with RHOH. Interacts with RAB1A, RAB3A, RAB5A and RAB10.

neXtProt entry for GDI1 Gene

Proteomics data for GDI1 Gene at MOPED

Post-translational modifications for GDI1 Gene

  • Ubiquitination at Lys54, Lys210, Lys221, Lys278, and Lys435
  • Modification sites at PhosphoSitePlus

Other Protein References for GDI1 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for GDI1 Gene

Domains for GDI1 Gene

Protein Domains for GDI1 Gene

Suggested Antigen Peptide Sequences for GDI1 Gene

Graphical View of Domain Structure for InterPro Entry



  • P31150
  • Belongs to the Rab GDI family.
genes like me logo Genes that share domains with GDI1: view

No data available for Gene Families for GDI1 Gene

Function for GDI1 Gene

Molecular function for GDI1 Gene

GENATLAS Biochemistry: RhoA/Rab GDI (GDP-dissociation inhibitor) p155,23kDa,ligand for presenilin 1 (PSEN1),also expressed predominantly in neural and sensory tissues,involved in the regulation of vesicle-mediated cellular transport,also in neuronal differentiation and brain development (signal transduction)
UniProtKB/Swiss-Prot Function: Regulates the GDP/GTP exchange reaction of most Rab proteins by inhibiting the dissociation of GDP from them, and the subsequent binding of GTP to them. Promotes the dissociation of GDP-bound Rab proteins from the membrane and inhibits their activation. Promotes the dissociation of RAB1A, RAB3A, RAB5A and RAB10 from membranes.

Gene Ontology (GO) - Molecular Function for GDI1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005092 GDP-dissociation inhibitor activity TAS 7849400
GO:0005093 Rab GDP-dissociation inhibitor activity ISS --
GO:0005096 GTPase activator activity IEA --
GO:0005515 protein binding IPI 11809807
GO:0017137 Rab GTPase binding IEA --
genes like me logo Genes that share ontologies with GDI1: view
genes like me logo Genes that share phenotypes with GDI1: view

Animal Models for GDI1 Gene

MGI Knock Outs for GDI1:

Animal Model Products

miRNA for GDI1 Gene

miRTarBase miRNAs that target GDI1

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for GDI1

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targeting and HOMER Transcription for GDI1 Gene

Localization for GDI1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for GDI1 Gene

Cytoplasm. Golgi apparatus, trans-Golgi network.

Subcellular locations from

Jensen Localization Image for GDI1 Gene COMPARTMENTS Subcellular localization image for GDI1 gene
Compartment Confidence
cytosol 4
cytoskeleton 1
endoplasmic reticulum 1
extracellular 1
golgi apparatus 1
mitochondrion 1
nucleus 1
peroxisome 1

Gene Ontology (GO) - Cellular Components for GDI1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005737 cytoplasm IDA --
GO:0005794 Golgi apparatus IEA --
GO:0005829 cytosol TAS --
GO:0030496 midbody IDA 15166316
GO:0043005 neuron projection IEA --
genes like me logo Genes that share ontologies with GDI1: view

Pathways for GDI1 Gene

genes like me logo Genes that share pathways with GDI1: view

Pathways by source for GDI1 Gene

1 GeneGo (Thomson Reuters) pathway for GDI1 Gene

Gene Ontology (GO) - Biological Process for GDI1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007165 signal transduction TAS 7543319
GO:0007264 small GTPase mediated signal transduction TAS --
GO:0015031 protein transport IEA --
GO:0032482 Rab protein signal transduction ISS --
GO:0043547 positive regulation of GTPase activity IEA --
genes like me logo Genes that share ontologies with GDI1: view

Compounds for GDI1 Gene

(2) HMDB Compounds for GDI1 Gene

Compound Synonyms Cas Number PubMed IDs
Guanosine diphosphate
  • 5'-GDP
Guanosine triphosphate
  • 5'-GTP

(1) Drugbank Compounds for GDI1 Gene

Compound Synonyms Cas Number Type Actions PubMed IDs
Geran-8-Yl Geran

(4) Novoseek inferred chemical compound relationships for GDI1 Gene

Compound -log(P) Hits PubMed IDs
gdp 83.9 9
gtp 67.1 4
nadph 26.4 2
superoxide 0 1
genes like me logo Genes that share compounds with GDI1: view

Transcripts for GDI1 Gene

Unigene Clusters for GDI1 Gene

GDP dissociation inhibitor 1:
Representative Sequences:

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for GDI1

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for GDI1 Gene

No ASD Table

Relevant External Links for GDI1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for GDI1 Gene

mRNA expression in normal human tissues for GDI1 Gene

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for GDI1 Gene

SOURCE GeneReport for Unigene cluster for GDI1 Gene Hs.74576

mRNA Expression by UniProt/SwissProt for GDI1 Gene

Tissue specificity: Brain; predominant in neural and sensory tissues.
genes like me logo Genes that share expressions with GDI1: view

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for GDI1 Gene

Orthologs for GDI1 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for GDI1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia GDI1 35
  • 99.7 (n)
  • 100 (a)
GDI1 36
  • 100 (a)
(Bos Taurus)
Mammalia GDI1 35
  • 92.99 (n)
  • 98.43 (a)
GDI1 36
  • 98 (a)
(Canis familiaris)
Mammalia GDI1 35
  • 92.17 (n)
  • 97.99 (a)
(Mus musculus)
Mammalia Gdi1 35
  • 90.83 (n)
  • 97.99 (a)
Gdi1 16
Gdi1 36
  • 98 (a)
(Monodelphis domestica)
Mammalia GDI1 36
  • 96 (a)
(Ornithorhynchus anatinus)
Mammalia GDI1 36
  • 80 (a)
(Rattus norvegicus)
Mammalia Gdi1 35
  • 90.68 (n)
  • 98.66 (a)
(Anolis carolinensis)
Reptilia GDI1 36
  • 90 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia gdi1 35
  • 80.61 (n)
  • 92.84 (a)
(Danio rerio)
Actinopterygii gdi1 35
  • 79.49 (n)
  • 91.95 (a)
gdi1 36
  • 92 (a)
wufc09e02 35
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP010025 35
  • 66.29 (n)
  • 67.65 (a)
fruit fly
(Drosophila melanogaster)
Insecta Gdi 35
  • 66.74 (n)
  • 68.11 (a)
Gdi 36
  • 67 (a)
Gdi 37
  • 68 (a)
(Caenorhabditis elegans)
Secernentea gdi-1 35
  • 63.67 (n)
  • 66.36 (a)
gdi-1 36
  • 63 (a)
gdi-1 37
  • 65 (a)
A. gosspyii yeast
(Ashbya gossypii)
Saccharomycetes AGOS_AFR183C 35
  • 60.47 (n)
  • 57.41 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes GDI1 35
  • 56 (n)
  • 56.47 (a)
GDI1 36
  • 53 (a)
K. lactis yeast
(Kluyveromyces lactis)
Saccharomycetes KLLA0F09185g 35
  • 54.59 (n)
  • 54.35 (a)
thale cress
(Arabidopsis thaliana)
eudicotyledons GDI2 35
  • 59.22 (n)
  • 57.67 (a)
(Zea mays)
Liliopsida Zm.5495 35
(Oryza sativa)
Liliopsida Os05g0418000 35
  • 58.88 (n)
  • 59.58 (a)
bread mold
(Neurospora crassa)
Ascomycetes NCU05288 35
  • 61.81 (n)
  • 57.18 (a)
fission yeast
(Schizosaccharomyces pombe)
Schizosaccharomycetes gdi1 35
  • 53.91 (n)
  • 58.45 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 62 (a)
Species with no ortholog for GDI1:
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for GDI1 Gene

Gene Tree for GDI1 (if available)
Gene Tree for GDI1 (if available)

Paralogs for GDI1 Gene

Paralogs for GDI1 Gene

Selected SIMAP similar genes for GDI1 Gene using alignment to 5 proteins:

genes like me logo Genes that share paralogs with GDI1: view

Variants for GDI1 Gene

Sequence variations from dbSNP and Humsavar for GDI1 Gene

SNP ID Clin Chr 0X pos Sequence Context AA Info Type MAF
rs4834 Likely benign 154,438,830(+) TGGAA(C/T)GTTGA synonymous-codon, reference
rs2230286 Likely benign 154,439,076(+) GGCAG(C/T)TTTGT reference, synonymous-codon
rs2276462 -- 154,440,375(+) CCCAG(C/T)TACCT reference, synonymous-codon
rs3747306 -- 154,441,422(-) CCCCC(A/C/G)CCCCC intron-variant
rs3833402 -- 154,441,416(+) GCCCC(-/CC)AGAGG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for GDI1 Gene

Variant ID Type Subtype PubMed ID
esv33199 CNV Gain+Loss 17666407
esv33784 CNV Gain+Loss 17666407
nsv519042 CNV Gain 19592680

Relevant External Links for GDI1 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for GDI1 Gene

Disorders for GDI1 Gene

(1) OMIM Diseases for GDI1 Gene (300104)


  • Mental retardation, X-linked 41 (MRX41) [MIM:300849]: A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. Intellectual deficiency is the only primary symptom of non-syndromic X-linked mental retardation, while syndromic mental retardation presents with associated physical, neurological and/or psychiatric manifestations. {ECO:0000269 PubMed:9620768, ECO:0000269 PubMed:9668174}. Note=The disease is caused by mutations affecting the gene represented in this entry.

(2) University of Copenhagen DISEASES for GDI1 Gene

(2) Novoseek inferred disease relationships for GDI1 Gene

Disease -log(P) Hits PubMed IDs
mental retardation 62.2 6
tumors 0 3

Relevant External Links for GDI1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with GDI1: view

Publications for GDI1 Gene

  1. Cloning of a brain-type isoform of human Rab GDI and its expression in human neuroblastoma cell lines and tumor specimens. (PMID: 7585614) Nishimura N. … Sano K. (Cancer Res. 1995) 3 4 23
  2. Mutations in GDI1 are responsible for X-linked non-specific mental retardation. (PMID: 9620768) D'Adamo P. … Toniolo D. (Nat. Genet. 1998) 3 4 23
  3. Expression patterns of two human genes coding for different rab GDP- dissociation inhibitors (GDIs), extremely conserved proteins involved in cellular transport. (PMID: 7543319) Bachner D. … Poustka A. (Hum. Mol. Genet. 1995) 2 3 4
  4. Evolutionary conservation and genomic organization of XAP-4, an Xq28 located gene coding for a human rab GDP-dissociation inhibitor (GDI). (PMID: 7849400) Sedlacek Z. … Poustka A. (Mamm. Genome 1994) 2 3 4
  5. Long-range sequence analysis in Xq28: thirteen known and six candidate genes in 219.4 kb of high GC DNA between the RCP/GCP and G6PD loci. (PMID: 8733135) Chen E.Y. … D'Urso M. (Hum. Mol. Genet. 1996) 3 4

Products for GDI1 Gene

Sources for GDI1 Gene

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