Q92502 (STAR8_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 106.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: StAR-related lipid transfer protein 8 Alternative name(s): Deleted in liver cancer 3 protein Short name=DLC-3 START domain-containing protein 8 Short name=StARD8 START-GAP3 | ||||
| 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 | 1023 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Accelerates GTPase activity of RHOA and CDC42, but not RAC1. Stimulates the hydrolysis of phosphatidylinositol 4,5-bisphosphate by PLCD1. Ref.7 |
| Subunit structure | Binds both the SH2 and PTB domains of TNS1. |
| Subcellular location | |
| Tissue specificity | Widely expressed with highest levels in kidney, lung and placenta. Ref.8 |
| Sequence similarities | Contains 1 Rho-GAP domain. Contains 1 START domain. |
| Sequence caution | The sequence BAA11506.2 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cell junction |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Molecular function | GTPase activation |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | positive regulation of GTPase activity Inferred from electronic annotation. Source: GOC regulation of small GTPase mediated signal transductionTraceable author statement. Source: Reactome small GTPase mediated signal transductionTraceable author statement. Source: Reactome |
| Cellular_component | cytosol Traceable author statement. Source: Reactome focal adhesionInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | GTPase activator activity Inferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q92502-1) Also known as: DLC3beta; 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: Q92502-2) Also known as: DLC3alpha; The sequence of this isoform differs from the canonical sequence as follows: 1-1: M → MPLLDVFWSC...SLGALCRRLM | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1023 | 1023 | StAR-related lipid transfer protein 8 | PRO_0000220676 | |||||
Regions | |||||||||
| Domain | 573 – 777 | 205 | Rho-GAP | ||||||
| Domain | 809 – 1017 | 209 | START | ||||||
| Compositional bias | 24 – 27 | 4 | Poly-Glu | ||||||
| Compositional bias | 338 – 342 | 5 | Poly-Glu | ||||||
Amino acid modifications | |||||||||
| Modified residue | 238 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 481 | 1 | Phosphoserine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 | 1 | M → MPLLDVFWSCFRKVKCFPLL QVKKNAEAEAKRACEWLQAT GFPQYVQLFEEGSFPLDIGS VKKNHGFLDEDSLGALCRRL M in isoform 2. | VSP_032984 | |||||
| Natural variant | 188 | 1 | G → S in a breast cancer sample; somatic mutation. Ref.10 | VAR_036588 | |||||
| Natural variant | 242 | 1 | E → K in a breast cancer sample; somatic mutation. Ref.10 | VAR_036589 | |||||
| Natural variant | 327 | 1 | R → Q. Corresponds to variant rs55962426 [ dbSNP | Ensembl ]. | VAR_061816 | |||||
Experimental info | |||||||||
| Mutagenesis | 608 | 1 | R → E: No effect on cell morphology when overexpressed. Ref.7 | ||||||
| Sequence conflict | 466 | 1 | P → S in BAA11506. Ref.1 | ||||||
| Isoform 2: | |||||||||
| Sequence conflict | 71 | 1 | D → G in CAH18253. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Prediction of the coding sequences of unidentified human genes. V. The coding sequences of 40 new genes (KIAA0161-KIAA0200) deduced by analysis of cDNA clones from human cell line KG-1." Nagase T., Seki N., Ishikawa K., Tanaka A., Nomura N. DNA Res. 3:17-24(1996) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Bone marrow. |
| [2] | "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] (ISOFORM 1). Tissue: Placenta. |
| [3] | "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 2). Tissue: Endometrial tumor. |
| [4] | "The DNA sequence of the human X chromosome." Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C. Bentley D.R.Nature 434:325-337(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [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 (SEP-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 1). Tissue: Uterus. |
| [7] | "START-GAP3/DLC3 is a GAP for RhoA and Cdc42 and is localized in focal adhesions regulating cell morphology." Kawai K., Kiyota M., Seike J., Deki Y., Yagisawa H. Biochem. Biophys. Res. Commun. 364:783-789(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, MUTAGENESIS OF ARG-608. |
| [8] | "Deleted in liver cancer 3 (DLC-3), a novel Rho GTPase-activating protein, is downregulated in cancer and inhibits tumor cell growth." Durkin M.E., Ullmannova V., Guan M., Popescu N.C. Oncogene 26:4580-4589(2007) [PubMed] [Europe PMC] [Abstract] Cited for: TISSUE SPECIFICITY. |
| [9] | "Oncogenic inhibition by a deleted in liver cancer gene requires cooperation between tensin binding and Rho-specific GTPase-activating protein activities." Qian X., Li G., Asmussen H.K., Asnaghi L., Vass W.C., Braverman R., Yamada K.M., Popescu N.C., Papageorge A.G., Lowy D.R. Proc. Natl. Acad. Sci. U.S.A. 104:9012-9017(2007) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH TNS1. |
| [10] | "The consensus coding sequences of human breast and colorectal cancers." Sjoeblom T., Jones S., Wood L.D., Parsons D.W., Lin J., Barber T.D., Mandelker D., Leary R.J., Ptak J., Silliman N., Szabo S., Buckhaults P., Farrell C., Meeh P., Markowitz S.D., Willis J., Dawson D., Willson J.K.V. Velculescu V.E.Science 314:268-274(2006) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS [LARGE SCALE ANALYSIS] SER-188 AND LYS-242. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | D80011 mRNA. Translation: BAA11506.2. Different initiation. AK291747 mRNA. Translation: BAF84436.1. CR749411 mRNA. Translation: CAH18253.1. AL360076 Genomic DNA. Translation: CAI41586.1. CH471132 Genomic DNA. Translation: EAX05374.1. CH471132 Genomic DNA. Translation: EAX05375.1. BC035587 mRNA. Translation: AAH35587.1. |
| IPI | IPI00293887. IPI00742801. |
| PIR | B59430. |
| RefSeq | NP_001135975.1. NM_001142503.2. NP_001135976.1. NM_001142504.2. NP_055540.2. NM_014725.4. |
| UniGene | Hs.95140. |
3D structure databases | |
| ProteinModelPortal | Q92502. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 9606.ENSP00000363727. |
PTM databases | |
| PhosphoSite | Q92502. |
Polymorphism databases | |
| DMDM | 90110072. |
Proteomic databases | |
| PaxDb | Q92502. |
| PRIDE | Q92502. |
Protocols and materials databases | |
| DNASU | 9754. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000252336; ENSP00000252336; ENSG00000130052. ENST00000374597; ENSP00000363725; ENSG00000130052. ENST00000374599; ENSP00000363727; ENSG00000130052. |
| GeneID | 9754. |
| KEGG | hsa:9754. |
| UCSC | uc004dxa.3. human. uc004dxb.3. human. |
Organism-specific databases | |
| CTD | 9754. |
| GeneCards | GC0XP067867. |
| HGNC | HGNC:19161. STARD8. |
| MIM | 300689. gene. |
| neXtProt | NX_Q92502. |
| PharmGKB | PA38804. |
| HUGE | Search... |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG236923. |
| HOGENOM | HOG000039960. |
| HOVERGEN | HBG055955. |
| InParanoid | Q92502. |
| OMA | RKAPDGH. |
| OrthoDB | EOG4JDH7M. |
| PhylomeDB | Q92502. |
Enzyme and pathway databases | |
| Reactome | REACT_111102. Signal Transduction. |
Gene expression databases | |
| ArrayExpress | Q92502. |
| Bgee | Q92502. |
| CleanEx | HS_STARD8. |
| Genevestigator | Q92502. |
| GermOnline | ENSG00000130052. Homo sapiens. |
Family and domain databases | |
| Gene3D | 1.10.555.10. 1 hit. 3.30.530.20. 1 hit. |
| InterPro | IPR008936. Rho_GTPase_activation_prot. IPR000198. RhoGAP_dom. IPR023393. START-like_dom. IPR002913. START_lipid-bd_dom. [Graphical view] |
| Pfam | PF00620. RhoGAP. 1 hit. PF01852. START. 1 hit. [Graphical view] |
| SMART | SM00324. RhoGAP. 1 hit. SM00234. START. 1 hit. [Graphical view] |
| SUPFAM | SSF48350. Rho_GAP. 1 hit. |
| PROSITE | PS50238. RHOGAP. 1 hit. PS50848. START. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| GenomeRNAi | 9754. |
| NextBio | 36716. |
| SOURCE | Search... |
Entry information
| Entry name | STAR8_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q92502 Secondary accession number(s): A8K6T2 Q68DG7 | ||||||||
| 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 X Human chromosome X: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
