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Aliases for TBC1D8B Gene

Aliases for TBC1D8B Gene

  • TBC1 Domain Family, Member 8B (With GRAM Domain) 2 3
  • TBC1 Domain Family Member 8B 3
  • RP11-321G1.1 3

External Ids for TBC1D8B Gene

Previous GeneCards Identifiers for TBC1D8B Gene

  • GC0XP105932
  • GC0XP106045
  • GC0XP095673

Summaries for TBC1D8B Gene

Entrez Gene Summary for TBC1D8B Gene

  • This gene encodes a protein with a TBC (Tre-2/Bub2/CDC16) domain. Some mammalian proteins with this domain have been shown to function as Rab-GAPs by binding to specific Rab proteins and affecting their GTPase activity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2011]

GeneCards Summary for TBC1D8B Gene

TBC1D8B (TBC1 Domain Family, Member 8B (With GRAM Domain)) is a Protein Coding gene. Among its related pathways are Clathrin derived vesicle budding and Clathrin derived vesicle budding. GO annotations related to this gene include calcium ion binding. An important paralog of this gene is TBC1D30.

UniProtKB/Swiss-Prot for TBC1D8B Gene

  • May act as a GTPase-activating protein for Rab family protein(s)

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for TBC1D8B Gene

Genomics for TBC1D8B Gene

Regulatory Elements for TBC1D8B Gene

Genomic Location for TBC1D8B Gene

106,802,680 bp from pter
106,876,150 bp from pter
73,471 bases
Plus strand

Genomic View for TBC1D8B Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for TBC1D8B Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for TBC1D8B Gene

Proteins for TBC1D8B Gene

  • Protein details for TBC1D8B Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    TBC1 domain family member 8B
    Protein Accession:
    Secondary Accessions:
    • B9A6K5
    • B9A6K6
    • Q5JRB7
    • Q6ZVX5
    • Q9NXE3

    Protein attributes for TBC1D8B Gene

    1120 amino acids
    Molecular mass:
    128709 Da
    Quaternary structure:
    No Data Available
    • Sequence=BAA91071.1; Type=Erroneous initiation; Evidence={ECO:0000305};

    Alternative splice isoforms for TBC1D8B Gene


neXtProt entry for TBC1D8B Gene

Proteomics data for TBC1D8B Gene at MOPED

Post-translational modifications for TBC1D8B Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for TBC1D8B Gene

No data available for DME Specific Peptides for TBC1D8B Gene

Domains for TBC1D8B Gene

Gene Families for TBC1D8B Gene

  • EFHAND :EF-hand domain containing

Protein Domains for TBC1D8B Gene

Suggested Antigen Peptide Sequences for TBC1D8B Gene

Graphical View of Domain Structure for InterPro Entry



  • Q0IIM8
  • The arginine and glutamine fingers are critical for the GTPase-activating mechanism, they pull out Rabs switch 2 glutamine and insert in Rabs active site.
  • Contains 1 EF-hand domain.
  • Contains 2 GRAM domains.
  • Contains 1 Rab-GAP TBC domain.
genes like me logo Genes that share domains with TBC1D8B: view

Function for TBC1D8B Gene

Molecular function for TBC1D8B Gene

UniProtKB/Swiss-Prot Function: May act as a GTPase-activating protein for Rab family protein(s)

Gene Ontology (GO) - Molecular Function for TBC1D8B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005096 GTPase activator activity IEA --
GO:0005509 calcium ion binding IEA --
genes like me logo Genes that share ontologies with TBC1D8B: view

Animal Model Products

CRISPR Products

miRNA for TBC1D8B Gene

miRTarBase miRNAs that target TBC1D8B

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for TBC1D8B

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Phenotypes , Animal Models , Transcription Factor Targeting and HOMER Transcription for TBC1D8B Gene

Localization for TBC1D8B Gene

Subcellular locations from

Jensen Localization Image for TBC1D8B Gene COMPARTMENTS Subcellular localization image for TBC1D8B gene
Compartment Confidence
cytosol 2
endoplasmic reticulum 1
golgi apparatus 1
mitochondrion 1
nucleus 1

No data available for Subcellular locations from UniProtKB/Swiss-Prot and Gene Ontology (GO) - Cellular Components for TBC1D8B Gene

Pathways for TBC1D8B Gene

genes like me logo Genes that share pathways with TBC1D8B: view

Interacting Proteins for TBC1D8B Gene

Gene Ontology (GO) - Biological Process for TBC1D8B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0043547 positive regulation of GTPase activity IEA --
genes like me logo Genes that share ontologies with TBC1D8B: view

Transcripts for TBC1D8B Gene

Unigene Clusters for TBC1D8B Gene

TBC1 domain family, member 8B (with GRAM domain):
Representative Sequences:

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for TBC1D8B

Primer Products

  • OriGene qSTAR qPCR primer pairs in human,mouse,rat for TBC1D8B
  • 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 TBC1D8B Gene

No ASD Table

Relevant External Links for TBC1D8B Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for TBC1D8B Gene

mRNA expression in normal human tissues for TBC1D8B Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for TBC1D8B Gene

This gene is overexpressed in Adrenal Gland (6.0).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for TBC1D8B Gene

SOURCE GeneReport for Unigene cluster for TBC1D8B Gene Hs.351798

genes like me logo Genes that share expressions with TBC1D8B: view

In Situ Assay Products

No data available for mRNA Expression by UniProt/SwissProt for TBC1D8B Gene

Orthologs for TBC1D8B Gene

This gene was present in the common ancestor of chordates.

Orthologs for TBC1D8B Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia TBC1D8B 35
  • 99.25 (n)
  • 99.22 (a)
TBC1D8B 36
  • 99 (a)
(Bos Taurus)
Mammalia -- 36
  • 95 (a)
-- 36
  • 85 (a)
(Canis familiaris)
Mammalia TBC1D8B 35
  • 91.99 (n)
  • 90.8 (a)
TBC1D8B 36
  • 91 (a)
(Mus musculus)
Mammalia Tbc1d8b 35
  • 89.44 (n)
  • 91.02 (a)
Tbc1d8b 16
Tbc1d8b 36
  • 91 (a)
(Monodelphis domestica)
Mammalia TBC1D8B 36
  • 79 (a)
(Ornithorhynchus anatinus)
Mammalia TBC1D8B 36
  • 83 (a)
(Rattus norvegicus)
Mammalia Tbc1d8b 35
  • 89.77 (n)
  • 90.61 (a)
(Gallus gallus)
Aves TBC1D8B 35
  • 76.61 (n)
  • 79.27 (a)
TBC1D8B 36
  • 78 (a)
(Anolis carolinensis)
Reptilia TBC1D8B 36
  • 71 (a)
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.4953 35
(Danio rerio)
Actinopterygii si:dkey-110k5.6 35
  • 63.89 (n)
  • 68.04 (a)
TBC1D8B 36
  • 64 (a)
sea squirt
(Ciona savignyi)
Ascidiacea CSA.3902 36
  • 33 (a)
Species with no ortholog for TBC1D8B:
  • 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)
  • fruit fly (Drosophila melanogaster)
  • 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)
  • 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)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for TBC1D8B Gene

Gene Tree for TBC1D8B (if available)
Gene Tree for TBC1D8B (if available)

Paralogs for TBC1D8B Gene

Paralogs for TBC1D8B Gene

Selected SIMAP similar genes for TBC1D8B Gene using alignment to 6 proteins:

genes like me logo Genes that share paralogs with TBC1D8B: view

Variants for TBC1D8B Gene

Sequence variations from dbSNP and Humsavar for TBC1D8B Gene

SNP ID Clin Chr 0X pos Sequence Context AA Info Type MAF
rs1937301 -- 106,820,219(-) CTAGT(C/T)GCTTT intron-variant
rs1937302 -- 106,841,310(-) AAGCC(G/T)TCTCT intron-variant
rs1937303 -- 106,841,309(-) AGCCT(C/T)CTCTG intron-variant
rs1937304 -- 106,833,900(+) TGTAA(C/T)TCCTC intron-variant
rs2226245 -- 106,824,512(+) CAGTA(G/T)GCATG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for TBC1D8B Gene

Variant ID Type Subtype PubMed ID
esv2752312 CNV Gain 17911159
esv2740375 CNV Deletion 23290073

Relevant External Links for TBC1D8B Gene

HapMap Linkage Disequilibrium report
Locus Specific Mutation Databases (LSDB)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for TBC1D8B Gene

Disorders for TBC1D8B Gene

No disorders were found for TBC1D8B Gene.

No data available for UniProtKB/Swiss-Prot for TBC1D8B Gene

Publications for TBC1D8B Gene

  1. Complete sequencing and characterization of 21,243 full-length human cDNAs. (PMID: 14702039) Ota T. … Sugano S. (Nat. Genet. 2004) 3 4
  2. Identification and characterization of a novel Tre-2/Bub2/Cdc16 (TBC) protein that possesses Rab3A-GAP activity. (PMID: 19077034) Ishibashi K. … Fukuda M. (Genes Cells 2009) 3 4
  3. Normalization and subtraction: two approaches to facilitate gene discovery. (PMID: 8889548) Bonaldo M.F. … Soares M.B. (Genome Res. 1996) 2 3
  4. Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. (PMID: 12477932) Strausberg R.L. … Marra M.A. (Proc. Natl. Acad. Sci. U.S.A. 2002) 3
  5. Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides. (PMID: 8125298) Maruyama K. … Sugano S. (Gene 1994) 3

Products for TBC1D8B Gene

Sources for TBC1D8B Gene

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