Q9NX95 (SYBU_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 88.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Syntabulin Alternative name(s): Golgi-localized syntaphilin-related protein Syntaxin-1-binding protein | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 663 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Part of a kinesin motor-adapter complex that is critical for the anterograde axonal transport of active zone components and contributes to activity-dependent presynaptic assembly during neuronal development By similarity. Ref.1 |
| Subunit structure | Interacts with STX1A and KIF5B. Ref.1 |
| Subcellular location | Isoform 1: Cytoplasm › cytoskeleton. Cytoplasmic vesicle. Note: Colocalizes with syntaxin vesicles along microtubules in neuronal processes. Ref.1 Ref.2 Isoform 3: Golgi apparatus membrane; Single-pass membrane protein Ref.1 Ref.2. Isoform 4: Golgi apparatus membrane; Single-pass membrane protein Ref.1 Ref.2. Isoform 5: Golgi apparatus membrane; Single-pass membrane protein Ref.1 Ref.2. |
| Tissue specificity | Isoform 3, isoform 4 and isoform 5 are expressed in HeLa cell line (at protein level). Isoform 3 is expressed in fetal and adult brain. Isoform 4 is expressed in numerous fetal tissues (brain, kidney, liver, lung, and thymus) and in adult brain, kidney, liver, lung, pancreas, colon, prostate, small intestine, testis and thymus. Isoform 5 is expressed in fetal brain, brain and small intestine. Ref.2 |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cytoplasm Cytoplasmic vesicle Cytoskeleton Golgi apparatus Membrane |
| Coding sequence diversity | Alternative splicing |
| Domain | Coiled coil Transmembrane Transmembrane helix |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Cellular_component | Golgi membrane Inferred from electronic annotation. Source: UniProtKB-SubCell cytoplasmic membrane-bounded vesicleInferred from electronic annotation. Source: UniProtKB-SubCell cytoskeletonInferred from electronic annotation. Source: UniProtKB-SubCell integral to membraneInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| ATXN1 | P54253 | 3 | EBI-948293,EBI-930964 |
Alternative products
| This entry describes 5 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9NX95-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q9NX95-2) The sequence of this isoform differs from the canonical sequence as follows: 1-68: Missing. 69-76: VSSNSFCS → MGPFWARK | ||||||
| Isoform 3 (identifier: Q9NX95-3) Also known as: GOLSYN A; The sequence of this isoform differs from the canonical sequence as follows: 8-8: Missing. | ||||||
| Isoform 4 (identifier: Q9NX95-4) Also known as: GOLSYN C; The sequence of this isoform differs from the canonical sequence as follows: 1-8: MGPLRESK → MSNFE | ||||||
| Isoform 5 (identifier: Q9NX95-5) Also known as: GOLSYN B; The sequence of this isoform differs from the canonical sequence as follows: 1-119: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 663 | 663 | Syntabulin | PRO_0000050798 | |||||
Regions | |||||||||
| Transmembrane | 606 – 626 | 21 | Helical; Potential | ||||||
| Region | 2 – 417 | 416 | Sufficient for interaction with KIF5B | ||||||
| Region | 310 – 417 | 108 | Sufficient for interaction with STX1A | ||||||
| Coiled coil | 271 – 353 | 83 | Potential | ||||||
| Compositional bias | 42 – 241 | 200 | Ser-rich | ||||||
Amino acid modifications | |||||||||
| Modified residue | 555 | 1 | Phosphoserine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 119 | 119 | Missing in isoform 5. | VSP_019718 | |||||
| Alternative sequence | 1 – 68 | 68 | Missing in isoform 2. | VSP_019719 | |||||
| Alternative sequence | 1 – 8 | 8 | MGPLRESK → MSNFE in isoform 4. | VSP_019720 | |||||
| Alternative sequence | 8 | 1 | Missing in isoform 3. | VSP_019721 | |||||
| Alternative sequence | 69 – 76 | 8 | VSSNSFCS → MGPFWARK in isoform 2. | VSP_019722 | |||||
Experimental info | |||||||||
| Sequence conflict | 8 | 1 | K → KMSNFE in CAD28457. Ref.4 | ||||||
| Sequence conflict | 331 | 1 | R → G in BAG53323. Ref.3 | ||||||
| Sequence conflict | 440 | 1 | D → G in BAA91121. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Syntabulin is a microtubule-associated protein implicated in syntaxin transport in neurons." Su Q., Cai Q., Gerwin C., Smith C.L., Sheng Z.-H. Nat. Cell Biol. 6:941-953(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, INTERACTION WITH KIF5B AND STX1A, SUBCELLULAR LOCATION. Tissue: Brain. |
| [2] | "Molecular cloning and characterization of gene for Golgi-localized syntaphilin-related protein on human chromosome 8q23." Funakoshi E., Nakagawa K.-Y., Hamano A., Hori T., Shimizu A., Asakawa S., Shimizu N., Ito F. Gene 344:259-271(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 3; 4 AND 5), SUBCELLULAR LOCATION, TISSUE SPECIFICITY. Tissue: Fetal brain. |
| [3] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1; 2 AND 5). Tissue: Fetal brain and Hepatoma. |
| [4] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 191-663. Tissue: Amygdala and Brain. |
| [5] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [6] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 5). Tissue: Colon. |
| [7] | "Prediction of the coding sequences of unidentified human genes. XVII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro." Nagase T., Kikuno R., Ishikawa K., Hirosawa M., Ohara O. DNA Res. 7:143-150(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 63-663. Tissue: Brain. |
| + | Additional computationally mapped references. |
Cross-references
Entry information
| Entry name | SYBU_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9NX95 Secondary accession number(s): A8K354 Q9P256 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 8 Human chromosome 8: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |

Clusters with
