Reviewed,
UniProtKB/Swiss-Prot P32600 (TOR2_YEAST)
Last modified
November 3, 2009.
Version 85.
History...
Clusters with 100%,
90%,
50% identity |
Documents (3) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Serine/threonine-protein kinase TOR2 EC=2.7.11.1 EC=2.7.1.67 Alternative name(s): Phosphatidylinositol 4-kinase TOR2 Short name=PtdIns-4-kinase TOR2 Short name=PI4-kinase TOR2 Short name=PI4K TOR2 Target of rapamycin kinase 2 Dominant rapamycin resistance protein 2 Temperature-sensitive CSG2 suppressor protein 14 | ||||||
| Gene names |
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| Organism | Saccharomyces cerevisiae (Baker's yeast) [Complete proteome] | ||||||
| Taxonomic identifier | 4932 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Fungi › Dikarya › Ascomycota › Saccharomycotina › Saccharomycetes › Saccharomycetales › Saccharomycetaceae › Saccharomyces |
Protein attributes
| Sequence length | 2474 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Phosphatidylinositol 3-kinase homolog, component of both TORC1 and TORC2. TORC1 regulates multiple cellular processes to control cell growth in response to environmental signals. Nutrient limitation and environmental stress signals cause inactivation of TORC1. Active TORC1 positively controls ribosome biogenesis via control of rRNA, ribosomal protein and tRNA gene expression, and rRNA processing. TORC1 positively controls protein biosynthesis by regulation of mRNA stability, translation initiation factor activity, and high-affinity amino acid permeases that serve to provide amino acids for use by the translation machinery. TORC1 also promotes growth by sequestering a number of nutrient and general stress-responsive transcription factors in the cytoplasm. TORC1 negatively controls macroautophagy, a process to recycle surplus cytoplasmic mass under nutrient starvation conditions. TORC1 controls many of these processes via TIP41-TAP42-mediated inhibition of the type 2A-related phosphatases PP2A and SIT4. TORC2 regulates cell cycle-dependent polarization of the actin-cytoskeleton, cell wall integrity, and receptor endocytosis. TORC2 controls polarity of the actin cytoskeleton, which is required for orienting the secretory pathway toward discrete growth sites, via the RHO1/PKC1/MAPK cell integrity pathway by activating the RHO1 guanine nucleotide exchange factor ROM2. TORC2 phosphorylates the AGC kinase YPK2, an upstream effector of the cell integrity pathway. TORC2 negatively regulates calcineurin-dependent stress signaling via phosphorylation of its effector SLM1-SLM2. Ref.3 Ref.4 Ref.5 Ref.6 Ref.7 Ref.8 Ref.9 Ref.10 Ref.11 Ref.13 Ref.16 Ref.17 Ref.18 Ref.21 Ref.22 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. Ref.4 ATP + 1-phosphatidyl-1D-myo-inositol = ADP + 1-phosphatidyl-1D-myo-inositol 4-phosphate. Ref.4 |
| Subunit structure | The target of rapamycin complex 1 (TORC1) is composed of at least KOG1, LST8, TCO89 and either TOR1 (TORC1-A) or TOR2 (TORC1-B). TORC1 binds to and is inhibited by FKBP-rapamycin. The target of rapamycin complex 2 (TORC2) is composed of at least AVO1, AVO2, BIT61, LST8, TOR2 and TSC11. TORC2 likely forms a homodimer. Contrary to TORC1, TORC2 does not bind to and is not sensitive to FKBP-rapamycin. Interacts with SLM1 and SLM2. Ref.22 Ref.14 Ref.15 Ref.19 Ref.20 |
| Subcellular location | Cell membrane; Peripheral membrane protein; Cytoplasmic side. Vacuole membrane; Peripheral membrane protein; Cytoplasmic side. Note: Also localizes to membranous structures both proximal to, yet distinct from, the plasma membrane as well as within the cell interior, probably endosomal or Golgi membanes. Ref.4 Ref.15 Ref.12 |
| Sequence similarities | Belongs to the PI3/PI4-kinase family. Contains 1 FAT domain. Contains 1 FATC domain. Contains 11 HEAT repeats. Contains 1 PI3K/PI4K domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| AVO1 | Q08236 | 1 | EBI-19385,EBI-29284 | |
| AVO2 | Q04749 | 1 | EBI-19385,EBI-28131 | |
| BIT61 | P47041 | 1 | EBI-19385,EBI-25889 | |
| KOG1 | P38873 | 1 | EBI-19385,EBI-24864 | |
| LST8 | P41318 | 1 | EBI-19385,EBI-28598 | |
| TAP42 | Q04372 | 1 | EBI-19385,EBI-18926 | |
| TSC11 | P40061 | 1 | EBI-19385,EBI-22621 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2474 | 2474 | Serine/threonine-protein kinase TOR2 | PRO_0000088815 | |||||
Regions | |||||||||
| Repeat | 588 – 626 | 39 | HEAT 1 | ||||||
| Repeat | 636 – 674 | 39 | HEAT 2 | ||||||
| Repeat | 676 – 710 | 35 | HEAT 3 | ||||||
| Repeat | 756 – 793 | 38 | HEAT 4 | ||||||
| Repeat | 797 – 835 | 39 | HEAT 5 | ||||||
| Repeat | 841 – 879 | 39 | HEAT 6 | ||||||
| Repeat | 917 – 955 | 39 | HEAT 7 | ||||||
| Repeat | 1039 – 1076 | 38 | HEAT 8 | ||||||
| Repeat | 1079 – 1116 | 38 | HEAT 9 | ||||||
| Repeat | 1118 – 1155 | 38 | HEAT 10 | ||||||
| Repeat | 1292 – 1331 | 40 | HEAT 11 | ||||||
| Domain | 1338 – 1922 | 585 | FAT | ||||||
| Domain | 2123 – 2441 | 319 | PI3K/PI4K | ||||||
| Domain | 2442 – 2474 | 33 | FATC | ||||||
Amino acid modifications | |||||||||
| Modified residue | 10 | 1 | Phosphothreonine Ref.23 | ||||||
| Modified residue | 2013 | 1 | Phosphoserine Ref.23 | ||||||
Experimental info | |||||||||
| Mutagenesis | 1975 | 1 | S → I in TOR2-1; confers resistance to rapamycin. Ref.4 | ||||||
| Mutagenesis | 2129 | 1 | G → R: Causes defect in receptor endocytosis. Ref.16 | ||||||
| Mutagenesis | 2279 | 1 | D → A: Loss of function. Ref.4 | ||||||
| Mutagenesis | 2298 | 1 | D → E: Loss of kinase activity. Ref.21 | ||||||
| Sequence conflict | 1473 | 1 | Missing in CAA82048. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Target of rapamycin in yeast, TOR2, is an essential phosphatidylinositol kinase homolog required for G1 progression." Kunz J., Henriquez R., Schneider U., Deuter-Reinhard M., Movva N., Hall M.N. Cell 73:585-596(1993) [PubMed: 8387896] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: JK9-3D. |
| [2] | "Complete DNA sequence of yeast chromosome XI." Dujon B., Alexandraki D., Andre B., Ansorge W., Baladron V., Ballesta J.P.G., Banrevi A., Bolle P.-A., Bolotin-Fukuhara M., Bossier P., Bou G., Boyer J., Buitrago M.J., Cheret G., Colleaux L., Daignan-Fornier B., del Rey F., Dion C. Mewes H.-W.Nature 369:371-378(1994) [PubMed: 8196765] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 96604 / S288c / FY1679. |
| [3] | "TOR kinase domains are required for two distinct functions, only one of which is inhibited by rapamycin." Zheng X.-F., Florentino D., Chen J., Crabtree G.R., Schreiber S.L. Cell 82:121-130(1995) [PubMed: 7606777] [Abstract] Cited for: FUNCTION. |
| [4] | "FKBP12-rapamycin target TOR2 is a vacuolar protein with an associated phosphatidylinositol-4 kinase activity." Cardenas M.E., Heitman J. EMBO J. 14:5892-5907(1995) [PubMed: 8846782] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, MUTAGENESIS OF SER-1975 AND ASP-2279, CATALYTIC ACTIVITY. |
| [5] | "TOR controls translation initiation and early G1 progression in yeast." Barbet N.C., Schneider U., Helliwell S.B., Stansfield I., Tuite M.F., Hall M.N. Mol. Biol. Cell 7:25-42(1996) [PubMed: 8741837] [Abstract] Cited for: FUNCTION. |
| [6] | "TOR2 is required for organization of the actin cytoskeleton in yeast." Schmidt A., Kunz J., Hall M.N. Proc. Natl. Acad. Sci. U.S.A. 93:13780-13785(1996) [PubMed: 8943012] [Abstract] Cited for: FUNCTION. |
| [7] | "The TOR nutrient signalling pathway phosphorylates NPR1 and inhibits turnover of the tryptophan permease." Schmidt A., Beck T., Koller A., Kunz J., Hall M.N. EMBO J. 17:6924-6931(1998) [PubMed: 9843498] [Abstract] Cited for: FUNCTION. |
| [8] | "The TOR (target of rapamycin) signal transduction pathway regulates the stability of translation initiation factor eIF4G in the yeast Saccharomyces cerevisiae." Berset C., Trachsel H., Altmann M. Proc. Natl. Acad. Sci. U.S.A. 95:4264-4269(1998) [PubMed: 9539725] [Abstract] Cited for: FUNCTION. |
| [9] | "Tor proteins and protein phosphatase 2A reciprocally regulate Tap42 in controlling cell growth in yeast." Jiang Y., Broach J.R. EMBO J. 18:2782-2792(1999) [PubMed: 10329624] [Abstract] Cited for: FUNCTION. |
| [10] | "Regulation of ribosome biogenesis by the rapamycin-sensitive TOR-signaling pathway in Saccharomyces cerevisiae." Powers T., Walter P. Mol. Biol. Cell 10:987-1000(1999) [PubMed: 10198052] [Abstract] Cited for: FUNCTION. |
| [11] | "The TOR signalling pathway controls nuclear localization of nutrient-regulated transcription factors." Beck T., Hall M.N. Nature 402:689-692(1999) [PubMed: 10604478] [Abstract] Cited for: FUNCTION. |
| [12] | "HEAT repeats mediate plasma membrane localization of Tor2p in yeast." Kunz J., Schneider U., Howald I., Schmidt A., Hall M.N. J. Biol. Chem. 275:37011-37020(2000) [PubMed: 10973982] [Abstract] Cited for: SUBCELLULAR LOCATION. |
| [13] | "TIP41 interacts with TAP42 and negatively regulates the TOR signaling pathway." Jacinto E., Guo B., Arndt K.T., Schmelzle T., Hall M.N. Mol. Cell 8:1017-1026(2001) [PubMed: 11741537] [Abstract] Cited for: FUNCTION. |
| [14] | "Two TOR complexes, only one of which is rapamycin sensitive, have distinct roles in cell growth control." Loewith R., Jacinto E., Wullschleger S., Lorberg A., Crespo J.L., Bonenfant D., Oppliger W., Jenoe P., Hall M.N. Mol. Cell 10:457-468(2002) [PubMed: 12408816] [Abstract] Cited for: SUBUNIT. |
| [15] | "Tor kinases are in distinct membrane-associated protein complexes in Saccharomyces cerevisiae." Wedaman K.P., Reinke A., Anderson S., Yates J.R. III, McCaffery J.M., Powers T. Mol. Biol. Cell 14:1204-1220(2003) [PubMed: 12631735] [Abstract] Cited for: SUBCELLULAR LOCATION, SUBUNIT, INTERACTION WITH LST8. |
| [16] | "Receptor internalization in yeast requires the Tor2-Rho1 signaling pathway." deHart A.K.A., Schnell J.D., Allen D.A., Tsai J.-Y., Hicke L. Mol. Biol. Cell 14:4676-4684(2003) [PubMed: 14593073] [Abstract] Cited for: FUNCTION IN RECEPTER ENDOCYTOSIS, MUTAGENESIS OF GLY-2129. |
| [17] | "TOR regulates ribosomal protein gene expression via PKA and the forkhead transcription factor FHL1." Martin D.E., Soulard A., Hall M.N. Cell 119:969-979(2004) [PubMed: 15620355] [Abstract] Cited for: FUNCTION. |
| [18] | "Genome-wide lethality screen identifies new PI4,5P2 effectors that regulate the actin cytoskeleton." Audhya A., Loewith R., Parsons A.B., Gao L., Tabuchi M., Zhou H., Boone C., Hall M.N., Emr S.D. EMBO J. 23:3747-3757(2004) [PubMed: 15372071] [Abstract] Cited for: FUNCTION, PHOSPHORYLATION OF SLM1-SLM2. |
| [19] | "Molecular organization of target of rapamycin complex 2." Wullschleger S., Loewith R., Oppliger W., Hall M.N. J. Biol. Chem. 280:30697-30704(2005) [PubMed: 16002396] [Abstract] Cited for: SUBUNIT, INTERACTION WITH LST8 AND TSC11. |
| [20] | "The pleckstrin homology domain proteins Slm1 and Slm2 are required for actin cytoskeleton organization in yeast and bind phosphatidylinositol-4,5-bisphosphate and TORC2." Fadri M., Daquinag A., Wang S., Xue T., Kunz J. Mol. Biol. Cell 16:1883-1900(2005) [PubMed: 15689497] [Abstract] Cited for: INTERACTION WITH SLM1 AND SLM2. |
| [21] | "Tor2 directly phosphorylates the AGC kinase Ypk2 to regulate actin polarization." Kamada Y., Fujioka Y., Suzuki N.N., Inagaki F., Wullschleger S., Loewith R., Hall M.N., Ohsumi Y. Mol. Cell. Biol. 25:7239-7248(2005) [PubMed: 16055732] [Abstract] Cited for: FUNCTION, PHOSPHORYLATION OF YPK2, MUTAGENESIS OF ASP-2298. |
| [22] | "Mutual antagonism of TOR and calcineurin signaling." Mulet J.M., Martin D.E., Loewith R., Hall M.N. J. Biol. Chem. 281:33000-33007(2006) [PubMed: 16959779] [Abstract] Cited for: FUNCTION, INTERACTION WITH SLM1. |
| [23] | "A multidimensional chromatography technology for in-depth phosphoproteome analysis." Albuquerque C.P., Smolka M.B., Payne S.H., Bafna V., Eng J., Zhou H. Mol. Cell. Proteomics 7:1389-1396(2008) [PubMed: 18407956] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-10 AND SER-2013, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| X71416 Genomic DNA. Translation: CAA50548.1. Z28203 Genomic DNA. Translation: CAA82048.1. | |
| PIR | S38040. |
| RefSeq | NP_012719.2. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1AUE based on UniProtKB P42345. |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP:2332N. |
| IntAct | P32600. 13 interactions. |
| STRING | P32600. |
Proteomic databases | |
| PeptideAtlas | P32600. |
| PRIDE | P32600. |
Genome annotation databases | |
| Ensembl | YKL203C; YKL203C; YKL203C; Saccharomyces cerevisiae. [Genome view] |
| GeneID | 853632. |
| GenomeReviews | Gene locus YKL203C in contig Y13137_GR. |
| KEGG | sce:YKL203C. |
| NMPDR | fig|4932.3.peg.3697. |
Organism-specific databases | |
| CYGD | YKL203c. |
| SGD | S000001686. TOR2. |
Phylogenomic databases | |
| HOGENOM | P32600. |
| OMA | WRDESED. |
Enzyme and pathway databases | |
| BRENDA | 2.7.1.137. 250. 2.7.1.67. 250. 2.7.11.1. 250. |
Gene expression databases | |
| ArrayExpress | P32600. |
| Genevestigator | P32600. |
| GermOnline | YKL203C. Saccharomyces cerevisiae. |
Family and domain databases | |
| InterPro | IPR011989. ARM-like. IPR003152. FATC. IPR009076. FKBP_rapamycin-assoc_FKBP12-bd. IPR000357. HEAT. IPR000403. PI3/4_kinase_cat. IPR018936. PI3/4_kinase_CS. IPR003151. PIK-rel_kinase_FAT. IPR014009. PIK_FAT. [Graphical view] |
| Gene3D | G3DSA:1.25.10.10. ARM-like. 1 hit. G3DSA:1.20.120.150. FRAP_FKBP12_bd. 1 hit. G3DSA:1.10.1070.11. PI3/4_kinase_cat. 1 hit. |
| Pfam | PF02259. FAT. 1 hit. PF02260. FATC. 1 hit. PF02985. HEAT. 2 hits. PF00454. PI3_PI4_kinase. 1 hit. PF08771. Rapamycin_bind. 1 hit. [Graphical view] |
| SMART | SM00146. PI3Kc. 1 hit. [Graphical view] |
| PROSITE | PS51189. FAT. 1 hit. PS51190. FATC. 1 hit. PS50077. HEAT_REPEAT. False negative. PS00915. PI3_4_KINASE_1. 1 hit. PS00916. PI3_4_KINASE_2. 1 hit. PS50290. PI3_4_KINASE_3. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 974511. |
Entry information
| Entry name | TOR2_YEAST | ||||||||
| Accession | Primary (citable) accession number: P32600 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | FPAP (Fungal Proteome Annotation Project) | ||||||||
Relevant documents
| SIMILARITY comments Index of protein domains and families |
| Yeast Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD |
| Yeast chromosome XI Yeast (Saccharomyces cerevisiae) chromosome XI: entries and gene names |

Clusters with


