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Aliases for RAB33B Gene

Aliases for RAB33B Gene

  • RAB33B, Member RAS Oncogene Family 2 3 5
  • Ras-Related Protein Rab-33B 3
  • SMC2 3

External Ids for RAB33B Gene

Previous GeneCards Identifiers for RAB33B Gene

  • GC04P141280
  • GC04P140674
  • GC04P140841
  • GC04P140952
  • GC04P140732
  • GC04P140374
  • GC04P136104

Summaries for RAB33B Gene

Entrez Gene Summary for RAB33B Gene

  • This gene encodes a small GTP-binding protein of the Rab GTPase family, whose members function in vesicle transport during protein secretion and endocytosis. Rab GTPases are active, membrane-associated proteins that recruit effector proteins in the GTP-bound state and inactive cytosolic proteins when in a GDP-bound state. The protein encoded by this gene is ubiquitously expressed and has been implicated in Golgi to endoplasmic reticulum cycling of Golgi enzymes. In addition, this protein regulates Golgi homeostasis and coordinates intra-Golgi retrograde trafficking. Allelic variants in this gene have been associated with Dyggve-Melchior-Clausen syndrome and Smith-McCort dysplasia 2, which are autosomal recessive spondyloepimetaphyseal dysplasias characterized by skeletal abnormalities. [provided by RefSeq, Sep 2016]

GeneCards Summary for RAB33B Gene

RAB33B (RAB33B, Member RAS Oncogene Family) is a Protein Coding gene. Diseases associated with RAB33B include Smith-Mccort Dysplasia 2 and Smith-Mccort Dysplasia. Among its related pathways are Vesicle-mediated transport and Intra-Golgi traffic. GO annotations related to this gene include GTP binding and GTPase activity. An important paralog of this gene is RAB33A.

UniProtKB/Swiss-Prot for RAB33B Gene

  • Protein transport. Acts, in coordination with RAB6A, to regulate intra-Golgi retrograde trafficking. It is involved in autophagy, acting as a modulator of autophagosome formation.

Gene Wiki entry for RAB33B Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for RAB33B Gene

Genomics for RAB33B Gene

Regulatory Elements for RAB33B Gene

Enhancers for RAB33B Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH04F139418 1.3 Ensembl ENCODE 33.9 -33.7 -33740 2.3 ATF3 JUN MAX MYC NR2F2 ZKSCAN1 RAB33B GC04P139422 LOC105377449
GH04F139460 1.1 Ensembl ENCODE 22.1 +7.8 7845 1.0 USF1 RAD51 TEAD4 MAX NFYC USF2 RAB33B H3F3AP6 LOC101927451 GC04P139503
GH04F139451 0.2 ENCODE 21.5 +1.0 1030 5.0 HDGF PKNOX1 CREB3L1 ARNT ARID4B SIN3A DMAP1 ZNF2 YY1 ZNF143 RAB33B NDUFC1 MAML3 NAA15 MGARP H3F3AP6 LOC101927451 GC04P139503
GH04F139470 0.4 Ensembl 21.1 +17.7 17669 1.0 REST SPI1 YY1 RAB33B LOC101927451 GC04P139503
GH04F139413 0.3 FANTOM5 20.6 -39.6 -39562 0.3 RAB33B ELF2 LOC105377449 GC04P139422
- Elite enhancer/Elite enhancer-gene association Download Table
Download GeneHancer data dump

Enhancers around RAB33B on UCSC Golden Path with GeneCards custom track

Promoters for RAB33B Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters
ENSR00001250306 1268 4601 HDGF PKNOX1 CREB3L1 ARID4B SIN3A FEZF1 DMAP1 ZNF2 YY1 ZNF143

Genomic Location for RAB33B Gene

139,453,232 bp from pter
139,476,609 bp from pter
23,378 bases
Plus strand

Genomic View for RAB33B Gene

Genes around RAB33B on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
RAB33B Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for RAB33B Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for RAB33B Gene

Proteins for RAB33B Gene

  • Protein details for RAB33B Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Ras-related protein Rab-33B
    Protein Accession:
    Secondary Accessions:
    • B2R987
    • Q4W5B0

    Protein attributes for RAB33B Gene

    229 amino acids
    Molecular mass:
    25718 Da
    Quaternary structure:
    • Interacts with ATG16L (PubMed:21808068). Interaction with ATG16L is important for autophagosome formation (By similarity). Interacts with RIC1 (via C-terminus domain); the interaction is direct with a preference for RAB33B-GTP (PubMed:23091056). Interacts with RGP1 (PubMed:23091056).

neXtProt entry for RAB33B Gene

Post-translational modifications for RAB33B Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for RAB33B Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for RAB33B Gene

Domains & Families for RAB33B Gene

Gene Families for RAB33B Gene

Protein Domains for RAB33B Gene

Suggested Antigen Peptide Sequences for RAB33B Gene

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 RAB33B: view

Function for RAB33B Gene

Molecular function for RAB33B Gene

UniProtKB/Swiss-Prot EnzymeRegulation:
Regulated by a guanine nucleotide-exchange factor (GEF) and a GTPase-activating protein (GAP) and alternates between an inactive GDP-bound and an active GTP-bound form. In vitro, SGSM2 acts as its GAP and inactivates it by stimulating its GTPase activity.
UniProtKB/Swiss-Prot Function:
Protein transport. Acts, in coordination with RAB6A, to regulate intra-Golgi retrograde trafficking. It is involved in autophagy, acting as a modulator of autophagosome formation.

Gene Ontology (GO) - Molecular Function for RAB33B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000166 nucleotide binding IEA --
GO:0003924 GTPase activity IMP 21808068
GO:0005515 protein binding IPI 21808068
GO:0005525 GTP binding IEA --
genes like me logo Genes that share ontologies with RAB33B: view
genes like me logo Genes that share phenotypes with RAB33B: view

Human Phenotype Ontology for RAB33B Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Model Products

miRNA for RAB33B Gene

miRTarBase miRNAs that target RAB33B

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targets and HOMER Transcription for RAB33B Gene

Localization for RAB33B Gene

Subcellular locations from UniProtKB/Swiss-Prot for RAB33B Gene

Golgi apparatus membrane; Lipid-anchor. Golgi apparatus, cis-Golgi network. Note=Under starvation conditions punctate RAB33B-positive structures are often observed in the cytoplasm. {ECO:0000250 UniProtKB:O35963}.

Subcellular locations from

Jensen Localization Image for RAB33B Gene COMPARTMENTS Subcellular localization image for RAB33B gene
Compartment Confidence
extracellular 5
golgi apparatus 5
cytosol 3
cytoskeleton 1
endosome 1
lysosome 1
nucleus 1
vacuole 1

Gene Ontology (GO) - Cellular Components for RAB33B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000139 Golgi membrane TAS --
GO:0005794 Golgi apparatus IEA,IDA 23042644
GO:0005796 Golgi lumen IDA 18448665
GO:0016020 membrane IEA --
GO:0070062 extracellular exosome IDA 23376485
genes like me logo Genes that share ontologies with RAB33B: view

Pathways & Interactions for RAB33B Gene

genes like me logo Genes that share pathways with RAB33B: view

SIGNOR curated interactions for RAB33B Gene


Gene Ontology (GO) - Biological Process for RAB33B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000042 protein targeting to Golgi IMP 20163571
GO:0001558 NOT regulation of cell growth IMP 20163571
GO:0006810 transport IEA --
GO:0006891 intra-Golgi vesicle-mediated transport IMP 20163571
GO:0006914 autophagy IEA --
genes like me logo Genes that share ontologies with RAB33B: view

Transcripts for RAB33B Gene

mRNA/cDNA for RAB33B Gene

Unigene Clusters for RAB33B Gene

RAB33B, member RAS oncogene family:
Representative Sequences:

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for RAB33B Gene

No ASD Table

Relevant External Links for RAB33B Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for RAB33B Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and SAGE for RAB33B Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues from HIPED for RAB33B Gene

This gene is overexpressed in Peripheral blood mononuclear cells (11.2), Liver (9.2), Uterus (8.3), and Retina (6.3).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for RAB33B Gene

Protein tissue co-expression partners for RAB33B Gene

NURSA nuclear receptor signaling pathways regulating expression of RAB33B Gene:


SOURCE GeneReport for Unigene cluster for RAB33B Gene:

genes like me logo Genes that share expression patterns with RAB33B: view

Primer Products

No data available for mRNA differential expression in normal tissues and mRNA Expression by UniProt/SwissProt for RAB33B Gene

Orthologs for RAB33B Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for RAB33B Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia RAB33B 34 35
  • 99.85 (n)
(Monodelphis domestica)
Mammalia RAB33B 35
  • 94 (a)
(Canis familiaris)
Mammalia RAB33B 34 35
  • 93.76 (n)
(Bos Taurus)
Mammalia RAB33B 34 35
  • 92.72 (n)
(Ornithorhynchus anatinus)
Mammalia RAB33B 35
  • 91 (a)
(Mus musculus)
Mammalia Rab33b 34 16 35
  • 87.48 (n)
(Rattus norvegicus)
Mammalia Rab33b 34
  • 87.48 (n)
(Gallus gallus)
Aves RAB33B 34 35
  • 83.99 (n)
(Anolis carolinensis)
Reptilia RAB33B 35
  • 90 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia rab33b 34
  • 75.21 (n)
Str.6559 34
(Danio rerio)
Actinopterygii LOC572060 34
  • 71.33 (n)
rab33ba 35
  • 69 (a)
Dr.11130 34
fruit fly
(Drosophila melanogaster)
Insecta Rab9D 35
  • 31 (a)
(Caenorhabditis elegans)
Secernentea rab-33 34 35
  • 58.24 (n)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes SEC4 35
  • 34 (a)
YPT11 37
sea squirt
(Ciona savignyi)
Ascidiacea CSA.8759 35
  • 61 (a)
Species where no ortholog for RAB33B 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)
  • 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)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • 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 RAB33B Gene

Gene Tree for RAB33B (if available)
Gene Tree for RAB33B (if available)

Paralogs for RAB33B Gene

genes like me logo Genes that share paralogs with RAB33B: view

Variants for RAB33B Gene

Sequence variations from dbSNP and Humsavar for RAB33B Gene

SNP ID Clin Chr 04 pos Sequence Context AA Info Type
rs587776958 Smith-McCort dysplasia 2 (SMC2) [MIM:615222], Pathogenic 139,454,331(+) TGGGC(A/C)AGACA upstream-variant-2KB, reference, missense
VAR_068855 Smith-McCort dysplasia 2 (SMC2) [MIM:615222]
rs10014315 -- 139,471,333(+) tgcct(C/T)tcatt intron-variant
rs10604111 -- 139,473,922(+) TTTTT(-/TT)GAGAT utr-variant-3-prime
rs111249618 -- 139,468,163(+) AGAAG(G/T)TGAAA intron-variant

Structural Variations from Database of Genomic Variants (DGV) for RAB33B Gene

Variant ID Type Subtype PubMed ID
nsv1023892 CNV gain 25217958
nsv830084 CNV loss 17160897
nsv830085 CNV loss 17160897

Variation tolerance for RAB33B Gene

Residual Variation Intolerance Score: 59.6% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.71; 15.04% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for RAB33B Gene

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

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for RAB33B Gene

Disorders for RAB33B Gene

MalaCards: The human disease database

(3) MalaCards diseases for RAB33B Gene - From: OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
smith-mccort dysplasia 2
  • smc2
smith-mccort dysplasia
  • smith mccort dysplasia
  • cartilage development disorder
- elite association - COSMIC cancer census association via MalaCards


  • Smith-McCort dysplasia 2 (SMC2) [MIM:615222]: A rare autosomal recessive osteochondrodysplasia with skeletal features identical to those of Dyggve-Melchior-Clausen syndrome, but with normal intelligence and no microcephaly. It is characterized by short limbs and trunk with barrel-shaped chest. The radiographic phenotype includes platyspondyly, generalized abnormalities of the epiphyses and metaphyses, and a distinctive lacy appearance of the iliac crest. {ECO:0000269 PubMed:22652534, ECO:0000269 PubMed:23042644}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for RAB33B

Genetic Association Database (GAD)
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with RAB33B: view

No data available for Genatlas for RAB33B Gene

Publications for RAB33B Gene

  1. A novel RAB33B mutation in Smith-McCort dysplasia. (PMID: 23042644) Dupuis N. … Ghouzzi V.E. (Hum. Mutat. 2013) 3 4 64
  2. Mutation in RAB33B, which encodes a regulator of retrograde Golgi transport, defines a second Dyggve--Melchior--Clausen locus. (PMID: 22652534) Alshammari M.J. … Alkuraya F.S. (J. Med. Genet. 2012) 3 4 64
  3. Ric1-Rgp1 complex is a guanine nucleotide exchange factor for the late Golgi Rab6A GTPase and an effector of the medial Golgi Rab33B GTPase. (PMID: 23091056) Pusapati G.V. … Pfeffer S.R. (J. Biol. Chem. 2012) 3 4 64
  4. RUTBC1 protein, a Rab9A effector that activates GTP hydrolysis by Rab32 and Rab33B proteins. (PMID: 21808068) Nottingham R.M. … Pfeffer S.R. (J. Biol. Chem. 2011) 3 4 64
  5. Rab33b and Rab6 are functionally overlapping regulators of Golgi homeostasis and trafficking. (PMID: 20163571) Starr T. … Storrie B. (Traffic 2010) 3 4 64

Products for RAB33B Gene

Sources for RAB33B Gene

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