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TTC8
HPA
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  • TTC8
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

TTC8
Synonyms BBS8, RP51
Gene descriptioni

Full gene name according to HGNC.

Tetratricopeptide repeat domain 8
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Human disease related genes
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 14
Cytoband q31.3
Chromosome location (bp) 88824153 - 88881078
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

7
Ensembl ENSG00000165533 (version 109)
Entrez gene 123016
HGNC HGNC:20087
UniProt Q8TAM2 (UniProt - Evidence at protein level)
neXtProt NX_Q8TAM2
GeneCards TTC8
Antibodypedia TTC8 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

The BBSome complex is thought to function as a coat complex required for sorting of specific membrane proteins to the primary cilia. The BBSome complex is required for ciliogenesis but is dispensable for centriolar satellite function. This ciliogenic function is mediated in part by the Rab8 GDP/GTP exchange factor, which localizes to the basal body and contacts the BBSome. Rab8(GTP) enters the primary cilium and promotes extension of the ciliary membrane. Firstly the BBSome associates with the ciliary membrane and binds to RAB3IP/Rabin8, the guanosyl exchange factor (GEF) for Rab8 and then the Rab8-GTP localizes to the cilium and promotes docking and fusion of carrier vesicles to the base of the ciliary membrane. The BBSome complex, together with the LTZL1, controls SMO ciliary trafficking and contributes to the sonic hedgehog (SHH) pathway regulation. Required for proper BBSome complex assembly and its ciliary localization.... show less
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Cilium biogenesis/degradation, Protein transport, Transport
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a protein that has been directly linked to Bardet-Biedl syndrome. The primary features of this syndrome include retinal dystrophy, obesity, polydactyly, renal abnormalities and learning disabilities. Experimentation in non-human eukaryotes suggests that this gene is expressed in ciliated cells and that it is involved in the formation of cilia. A mutation in this gene has also been implicated in nonsyndromic retinitis pigmentosa. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
TTC8-201
ENSP00000337653
ENST00000338104
A0A0C4DGX9
[Direct mapping] Tetratricopeptide repeat domain 8 isoform 1; Tetratricopeptide repeat domain 8, isoform CRA_c; Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0034464 [BBSome]
GO:1905515 [non-motile cilium assembly]
Show all
531 aa
60.4 kDa
No 0
TTC8-202
ENSP00000298324
ENST00000346301
A0A0C4DGH8
[Direct mapping] Tetratricopeptide repeat domain 8 isoform 3; Tetratricopeptide repeat domain 8, isoform CRA_g; Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0034464 [BBSome]
GO:1905515 [non-motile cilium assembly]
Show all
475 aa
54 kDa
No 0
TTC8-203
ENSP00000346427
ENST00000354441
Q8TAM2
[Direct mapping] Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Disease related genes
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005813 [centrosome]
GO:0005815 [microtubule organizing center]
GO:0005829 [cytosol]
GO:0005856 [cytoskeleton]
GO:0005886 [plasma membrane]
GO:0005929 [cilium]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0030030 [cell projection organization]
GO:0034464 [BBSome]
GO:0036064 [ciliary basal body]
GO:0042995 [cell projection]
GO:0048560 [establishment of anatomical structure orientation]
GO:0050893 [sensory processing]
GO:0060170 [ciliary membrane]
GO:0060271 [cilium assembly]
GO:0061629 [RNA polymerase II-specific DNA-binding transcription factor binding]
GO:0097730 [non-motile cilium]
GO:1905515 [non-motile cilium assembly]
Show all
250 aa
28.7 kDa
No 0
TTC8-204
ENSP00000370031
ENST00000380656
Q8TAM2
[Direct mapping] Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Disease related genes
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001736 [establishment of planar polarity]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005813 [centrosome]
GO:0005815 [microtubule organizing center]
GO:0005829 [cytosol]
GO:0005856 [cytoskeleton]
GO:0005886 [plasma membrane]
GO:0005929 [cilium]
GO:0007411 [axon guidance]
GO:0007608 [sensory perception of smell]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0021772 [olfactory bulb development]
GO:0030030 [cell projection organization]
GO:0032391 [photoreceptor connecting cilium]
GO:0032880 [regulation of protein localization]
GO:0034260 [negative regulation of GTPase activity]
GO:0034464 [BBSome]
GO:0035264 [multicellular organism growth]
GO:0036064 [ciliary basal body]
GO:0042995 [cell projection]
GO:0045198 [establishment of epithelial cell apical/basal polarity]
GO:0045444 [fat cell differentiation]
GO:0048560 [establishment of anatomical structure orientation]
GO:0050893 [sensory processing]
GO:0051492 [regulation of stress fiber assembly]
GO:0060122 [inner ear receptor cell stereocilium organization]
GO:0060170 [ciliary membrane]
GO:0060219 [camera-type eye photoreceptor cell differentiation]
GO:0060271 [cilium assembly]
GO:0061326 [renal tubule development]
GO:0061629 [RNA polymerase II-specific DNA-binding transcription factor binding]
GO:0072659 [protein localization to plasma membrane]
GO:0097730 [non-motile cilium]
GO:1903251 [multi-ciliated epithelial cell differentiation]
GO:1905515 [non-motile cilium assembly]
Show all
515 aa
58.4 kDa
No 0
TTC8-206
ENSP00000452354
ENST00000554686
H0YJX0
[Direct mapping] Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0034464 [BBSome]
GO:1905515 [non-motile cilium assembly]
Show all
437 aa
49.7 kDa
No 0
TTC8-211
ENSP00000450993
ENST00000556651
G3V324
[Direct mapping] Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0034464 [BBSome]
GO:1905515 [non-motile cilium assembly]
Show all
192 aa
21.1 kDa
No 0
TTC8-213
ENSP00000482721
ENST00000622513
A0A0C4DGY3
[Direct mapping] Tetratricopeptide repeat domain 8 isoform 2; Tetratricopeptide repeat protein 8
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Other congenital disorders of metabolism
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0034464 [BBSome]
GO:1905515 [non-motile cilium assembly]
Show all
505 aa
57.3 kDa
No 0

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