7kpv | pdb_00007kpv

Structure of kinase and Central lobes of yeast CKM

spinqualitylabelsall models 7kpv, resolution 3.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7kpv is a 4 chain structure with sequence from Saccharomyces cerevisiae S288C. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.8Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function SSN3_YEAST Component of the SRB8-11 complex. The SRB8-11 complex is a regulatory module of the Mediator complex which is itself involved in regulation of basal and activated RNA polymerase II-dependent transcription. The SRB8-11 complex may be involved in the transcriptional repression of a subset of genes regulated by Mediator. It may inhibit the association of the Mediator complex with RNA polymerase II to form the holoenzyme complex. The SRB8-11 complex phosphorylates the C-terminal domain (CTD) of the largest subunit of RNA polymerase II RPB1 at serines 2 and 5. The SSN3/SRB10 and SSN8/SRB11 kinase-cyclin pair may also positively and negatively regulate numerous transcriptional activators in response to changes in nutritional and physiological conditions. Phosphorylates GCN4, promoting its ubiquitin-mediated degradation, and MSN2, promoting its nuclear exclusion. Phosphorylates STE12, thereby promoting its degradation and inhibition of filamentous growth. Phosphorylates GAL4, and this phosphorylation is required for efficient galactose-inducible transcription. Also phosphorylates BDF1 and the TAF2 subunit of the TFIID complex. See Also Mediator RNA polymerase 3D structures

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