ID:ULK2_HUMAN DESCRIPTION: RecName: Full=Serine/threonine-protein kinase ULK2; EC=2.7.11.1; AltName: Full=Unc-51-like kinase 2; FUNCTION: Serine/threonine-protein kinase involved in autophagy in response to starvation. Acts upstream of phosphatidylinositol 3- kinase PIK3C3 to regulate the formation of autophagophores, the precursors of autophagosomes. Part of regulatory feedback loops in autophagy: acts both as a downstream effector and a negative regulator of mammalian target of rapamycin complex 1 (mTORC1) via interaction with RPTOR. Activated via phosphorylation by AMPK, also acts as a negative regulator of AMPK through phosphorylation of the AMPK subunits PRKAA1, PRKAB2 and PRKAG1. May phosphorylate ATG13/KIAA0652, FRS2, FRS3 and RPTOR; however such data need additional evidences. Not involved in ammonia-induced autophagy or in autophagic response of cerebellar granule neurons (CGN) to low potassium concentration. Plays a role early in neuronal differentiation and is required for granule cell axon formation: may govern axon formation via Ras-like GTPase signaling and through regulation of the Rab5-mediated endocytic pathways within developing axons. CATALYTIC ACTIVITY: ATP + a protein = ADP + a phosphoprotein. SUBUNIT: Interacts with SYNGAP1 (By similarity). Component of a complex consisting of ATG13/KIAA0652, ULK1 and RB1CC1/FIP200. Interacts (via C-terminus) with ATG13/KIAA0652. Associates with the mammalian target of rapamycin complex 1 (mTORC1) through an interaction with RPTOR. SUBCELLULAR LOCATION: Cytoplasmic vesicle membrane; Peripheral membrane protein. Note=Localizes to pre-autophagosomal membrane. DOMAIN: The CTD-like region mediates membrane-binding and incorporation into large protein complexes. PTM: Autophosphorylated. In response to nutrient limitation, probably phosphorylated and activated by AMPK, leading to activate autophagy. SIMILARITY: Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. APG1/unc-51/ULK1 subfamily. SIMILARITY: Contains 1 protein kinase domain. SEQUENCE CAUTION: Sequence=BAA31598.2; Type=Erroneous initiation; Note=Translation N-terminally shortened;
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
Pfam Domains: PF00069 - Protein kinase domain PF01163 - RIO1 family PF03109 - ABC1 atypical kinase-like domain PF06293 - Lipopolysaccharide kinase (Kdo/WaaP) family PF07714 - Protein tyrosine and serine/threonine kinase PF12063 - Domain of unknown function (DUF3543)
SCOP Domains: 49742 - PHM/PNGase F 56112 - Protein kinase-like (PK-like)
ModBase Predicted Comparative 3D Structure on Q8IYT8
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.