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Aliases for RAB21 Gene

Aliases for RAB21 Gene

  • RAB21, Member RAS Oncogene Family 2 3 5
  • Ras-Related Protein Rab-21 3
  • GTP-Binding Protein RAB21 3
  • KIAA0118 4

External Ids for RAB21 Gene

Previous GeneCards Identifiers for RAB21 Gene

  • GC12P071929
  • GC12P072100
  • GC12P070434
  • GC12P069197

Summaries for RAB21 Gene

Entrez Gene Summary for RAB21 Gene

  • This gene belongs to the Rab family of monomeric GTPases, which are involved in the control of cellular membrane traffic. The encoded protein plays a role in the targeted trafficking of integrins via its association with integrin alpha tails. As a consequence, the encoded protein is involved in the regulation of cell adhesion and migration. Expression of this gene is associated with a poor prognosis for glioma patients. This gene is downregulated by the tumor suppressor miR-200b, and miRNA-200b is itself downregulated in glioma tissues. [provided by RefSeq, Nov 2015]

GeneCards Summary for RAB21 Gene

RAB21 (RAB21, Member RAS Oncogene Family) is a Protein Coding gene. Among its related pathways are Sertoli-Sertoli Cell Junction Dynamics and Metabolism of proteins. Gene Ontology (GO) annotations related to this gene include GTP binding and GDP binding. An important paralog of this gene is RAB31.

UniProtKB/Swiss-Prot for RAB21 Gene

  • Regulates integrin internalization and recycling, but does not influence the traffic of endosomally translocated receptors in general. As a result, may regulate cell adhesion and migration (By similarity). During the mitosis of adherent cells, controls the endosomal trafficking of integrins which is required for the successful completion of cytokinesis. Involved in neurite growth (By similarity).

Gene Wiki entry for RAB21 Gene

Additional gene information for RAB21 Gene

No data available for CIViC summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for RAB21 Gene

Genomics for RAB21 Gene

GeneHancer (GH) Regulatory Elements for RAB21 Gene

Promoters and enhancers for RAB21 Gene
GeneHancer (GH) Identifier GH Type GH
GH Sources Gene Association Score Total Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor
Binding Sites
Gene Targets
GH12J071754 Promoter/Enhancer 2.1 EPDnew Ensembl ENCODE 650.7 +0.6 626 2.8 HDGF CLOCK ARNT ARID4B SIN3A DMAP1 IRF4 YY1 POLR2B E2F8 RAB21 ZFC3H1 TBC1D15 ENSG00000257410
GH12J071753 Enhancer 0.9 FANTOM5 650.7 -1.7 -1718 0.1 HDAC1 ATF1 ARNT CHAMP1 NCOA2 TCF12 ZNF766 GATA2 CREM CEBPB RAB21 TMEM19 ZFC3H1 THAP2 ENSG00000212461 ENSG00000257515
GH12J071780 Enhancer 0.6 ENCODE 12.1 +25.9 25854 1.1 CTCF ZNF654 TRIM22 REST ELF1 RAD21 SMC3 ZNF143 TBC1D15 RAB21 TPH2 ENSG00000257410
GH12J071782 Enhancer 0.4 ENCODE 12.1 +27.5 27489 0.5 IKZF1 JUNB BATF TBC1D15 RAB21 TPH2 ENSG00000257410
GH12J071731 Enhancer 1.1 FANTOM5 Ensembl ENCODE 0.3 -22.9 -22880 1 DRAP1 ELF3 CTCF AHR SAP130 RAD21 GATAD1 POLR2A ZSCAN29 ZNF600 TMEM19 ZFC3H1 ENSG00000257515 RAB21
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data from 2017 publication | Request up-to-date GeneHancer data (full dataset)

GeneHancers around RAB21 on UCSC Golden Path with GeneCards custom track

Top Transcription factor binding sites by QIAGEN in the RAB21 gene promoter:
  • Pax-2
  • Pax-2a
  • NF-kappaB2
  • NF-kappaB1
  • NF-kappaB
  • YY1
  • C/EBPalpha
  • XBP-1
  • Nkx3-1 v1
  • Nkx3-1 v2

Genomic Locations for RAB21 Gene

Genomic Locations for RAB21 Gene
45,436 bases
Plus strand
36,046 bases
Plus strand

Genomic View for RAB21 Gene

Genes around RAB21 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
RAB21 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for RAB21 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for RAB21 Gene

Proteins for RAB21 Gene

  • Protein details for RAB21 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Ras-related protein Rab-21
    Protein Accession:
    Secondary Accessions:
    • Q14466
    • Q569H3

    Protein attributes for RAB21 Gene

    225 amino acids
    Molecular mass:
    24348 Da
    Quaternary structure:
    • Interacts with the cytoplasmic tail of integrins ITGA1, ITGA2, ITGA5, ITGA6, ITGA11 and ITGB1 (By similarity). Interacts with RABGEF1 (via VPS9 domain). Interacts with ANKRD27 (PubMed:16525121, PubMed:18477474).

    Three dimensional structures from OCA and Proteopedia for RAB21 Gene

neXtProt entry for RAB21 Gene

Post-translational modifications for RAB21 Gene

  • Ubiquitination at Lys157
  • Modification sites at PhosphoSitePlus

Other Protein References for RAB21 Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for RAB21 Gene

Domains & Families for RAB21 Gene

Gene Families for RAB21 Gene

Human Protein Atlas (HPA):
  • Plasma proteins
  • Predicted intracellular proteins

Protein Domains for RAB21 Gene

Suggested Antigen Peptide Sequences for RAB21 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the small GTPase superfamily. Rab family.
  • Belongs to the small GTPase superfamily. Rab family.
genes like me logo Genes that share domains with RAB21: view

Function for RAB21 Gene

Molecular function for RAB21 Gene

UniProtKB/Swiss-Prot Function:
Regulates integrin internalization and recycling, but does not influence the traffic of endosomally translocated receptors in general. As a result, may regulate cell adhesion and migration (By similarity). During the mitosis of adherent cells, controls the endosomal trafficking of integrins which is required for the successful completion of cytokinesis. Involved in neurite growth (By similarity).

Phenotypes From GWAS Catalog for RAB21 Gene

Gene Ontology (GO) - Molecular Function for RAB21 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000166 nucleotide binding IEA --
GO:0003924 GTPase activity IDA 16034420
GO:0005515 protein binding IPI 16525121
GO:0005525 GTP binding IMP 15561770
GO:0019003 GDP binding IDA 16034420
genes like me logo Genes that share ontologies with RAB21: view
genes like me logo Genes that share phenotypes with RAB21: view

Animal Models for RAB21 Gene

MGI Knock Outs for RAB21:
  • Rab21 Rab21<tm1b(KOMP)Wtsi>

Animal Model Products

miRNA for RAB21 Gene

miRTarBase miRNAs that target RAB21

Clone Products

No data available for Enzyme Numbers (IUBMB) , Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for RAB21 Gene

Localization for RAB21 Gene

Subcellular locations from UniProtKB/Swiss-Prot for RAB21 Gene

Endoplasmic reticulum membrane; Lipid-anchor. Golgi apparatus, trans-Golgi network. Golgi apparatus membrane. Early endosome membrane. Cytoplasmic vesicle membrane. Cleavage furrow. Note=Colocalizes with ANKRD27 and VAMP7 in neurites (By similarity). In nonpolarized epithelial Caco-2 cells, found in the endoplasmic reticulum; in polarized cells, observed in vesicles in the apical cytoplasm (PubMed:10887961). During mitosis, in mid-telophase, localized in the ingressing cleavage furrow (PubMed:18804435). In late telophase, detected at the opposite poles of the daughter cells, in vesicles at the base of lamellipodia formed by the separating daughter cells (PubMed:18804435). {ECO:0000250 UniProtKB:P35282, ECO:0000269 PubMed:10887961, ECO:0000269 PubMed:18804435}.

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for RAB21 gene
Compartment Confidence
plasma membrane 5
extracellular 5
cytosol 5
golgi apparatus 5
endosome 5
endoplasmic reticulum 3
mitochondrion 1
lysosome 1

Gene Ontology (GO) - Cellular Components for RAB21 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005768 endosome IDA --
GO:0005769 early endosome IBA --
GO:0005783 endoplasmic reticulum IEA --
GO:0005789 endoplasmic reticulum membrane IEA --
GO:0005794 Golgi apparatus IEA --
genes like me logo Genes that share ontologies with RAB21: view

No data available for Subcellular locations from the Human Protein Atlas (HPA) for RAB21 Gene

Pathways & Interactions for RAB21 Gene

genes like me logo Genes that share pathways with RAB21: view

Gene Ontology (GO) - Biological Process for RAB21 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006886 intracellular protein transport IBA --
GO:0008089 anterograde axonal transport IEA --
GO:0015031 protein transport IEA --
GO:0017157 regulation of exocytosis IDA 22705394
GO:0030100 regulation of endocytosis IBA --
genes like me logo Genes that share ontologies with RAB21: view

No data available for SIGNOR curated interactions for RAB21 Gene

Drugs & Compounds for RAB21 Gene

No Compound Related Data Available

Transcripts for RAB21 Gene

mRNA/cDNA for RAB21 Gene

(1) REFSEQ mRNAs :
(6) Additional mRNA sequences :
(221) Selected AceView cDNA sequences:
(4) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for RAB21 Gene

RAB21, member RAS oncogene family:
Representative Sequences:

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for RAB21 Gene

No ASD Table

Relevant External Links for RAB21 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for RAB21 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for RAB21 Gene

Protein differential expression in normal tissues from HIPED for RAB21 Gene

This gene is overexpressed in Peripheral blood mononuclear cells (6.7).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, MaxQB, and MOPED for RAB21 Gene

Protein tissue co-expression partners for RAB21 Gene

NURSA nuclear receptor signaling pathways regulating expression of RAB21 Gene:


SOURCE GeneReport for Unigene cluster for RAB21 Gene:


mRNA Expression by UniProt/SwissProt for RAB21 Gene:

Tissue specificity: Widely expressed. In jejunal tissue, predominantly expressed in the apical region of the epithelial cell layer of the villi, weak expression, if any, in the crypt epithelium. Capillary endothelium and some cell types in the lamina propria also show expression.

Evidence on tissue expression from TISSUES for RAB21 Gene

  • Bone marrow(4.3)
  • Heart(2.1)
  • Muscle(2)
genes like me logo Genes that share expression patterns with RAB21: view

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery , mRNA differential expression in normal tissues and Phenotype-based relationships between genes and organs from Gene ORGANizer for RAB21 Gene

Orthologs for RAB21 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for RAB21 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia RAB21 34 33
  • 99.4 (n)
(Bos Taurus)
Mammalia RAB21 34
  • 97 (a)
(Canis familiaris)
Mammalia RAB21 34 33
  • 96.87 (n)
(Ornithorhynchus anatinus)
Mammalia -- 34
  • 92 (a)
-- 34
  • 85 (a)
(Rattus norvegicus)
Mammalia Rab21 33
  • 91.27 (n)
(Mus musculus)
Mammalia Rab21 16 34 33
  • 90.59 (n)
(Gallus gallus)
Aves RAB21 34 33
  • 87.56 (n)
(Anolis carolinensis)
Reptilia RAB21 34
  • 85 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia rab21 33
  • 83.57 (n)
(Danio rerio)
Actinopterygii RAB21 34
  • 87 (a)
zgc:154045 33
  • 76.83 (n)
fruit fly
(Drosophila melanogaster)
Insecta CG17515 35
  • 64 (a)
Rab21 34 33
  • 62.2 (n)
chrw 35
  • 39 (a)
(Caenorhabditis elegans)
Secernentea rab-21 34 33
  • 55.39 (n)
(Oryza sativa)
Liliopsida Os05g0341600 33
  • 57.55 (n)
sea squirt
(Ciona savignyi)
Ascidiacea CSA.2167 34
  • 76 (a)
Species where no ortholog for RAB21 was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • oppossum (Monodelphis domestica)
  • 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)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for RAB21 Gene

Gene Tree for RAB21 (if available)
Gene Tree for RAB21 (if available)
Evolutionary constrained regions (ECRs) for RAB21: view image

Paralogs for RAB21 Gene

Variants for RAB21 Gene

Sequence variations from dbSNP and Humsavar for RAB21 Gene

SNP ID Clin Chr 12 pos Variation AA Info Type
rs1000094144 -- 71,754,856(+) G/A upstream_transcript_variant
rs1000154877 -- 71,772,308(+) G/T intron_variant
rs1000193831 -- 71,767,503(+) TGT/T intron_variant
rs1000227127 -- 71,773,631(+) T/C intron_variant
rs1000251013 -- 71,760,709(+) A/G intron_variant

Structural Variations from Database of Genomic Variants (DGV) for RAB21 Gene

Variant ID Type Subtype PubMed ID
esv2658849 CNV deletion 23128226
esv2759907 CNV gain 17122850
esv35030 CNV gain 17911159
esv3629915 CNV loss 21293372
esv3629916 CNV gain 21293372
esv3892218 CNV gain 25118596
nsv559329 CNV loss 21841781
nsv832451 CNV loss 17160897

Variation tolerance for RAB21 Gene

Residual Variation Intolerance Score: 55.8% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 2.05; 37.61% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for RAB21 Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

SNP Genotyping and Copy Number Assay Products

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for RAB21 Gene

Disorders for RAB21 Gene

Additional Disease Information for RAB21

No disorders were found for RAB21 Gene.

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for RAB21 Gene

Publications for RAB21 Gene

  1. Expression of Rab small GTPases in epithelial Caco-2 cells: Rab21 is an apically located GTP-binding protein in polarised intestinal epithelial cells. (PMID: 10887961) Opdam FJ … Fransen JA (European journal of cell biology 2000) 2 3 4 58
  2. Role of Varp, a Rab21 exchange factor and TI-VAMP/VAMP7 partner, in neurite growth. (PMID: 19745841) Burgo A … Galli T (EMBO reports 2009) 3 4 58
  3. Integrin trafficking regulated by Rab21 is necessary for cytokinesis. (PMID: 18804435) Pellinen T … Ivaska J (Developmental cell 2008) 3 4 58
  4. Structural basis for Rab GTPase activation by VPS9 domain exchange factors. (PMID: 17450153) Delprato A … Lambright DG (Nature structural & molecular biology 2007) 3 4 58
  5. Small GTPase Rab21 regulates cell adhesion and controls endosomal traffic of beta1-integrins. (PMID: 16754960) Pellinen T … Ivaska J (The Journal of cell biology 2006) 2 3 58

Products for RAB21 Gene

Sources for RAB21 Gene

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