2eg1 | pdb_00002eg1

The crystal structure of PII protein

spinqualitylabelsall models 2eg1, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2eg1 is a 1 chain structure with sequence from "aquifex_aeolicus"_huber_and_stetter_2001 "aquifex aeolicus" huber and stetter 2001. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CL, SO4 Related: 2eg2 Gene: glnB ("Aquifex aeolicus" Huber and Stetter 2001) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN Function [GLNB_AQUAE] In nitrogen-limiting conditions, when the ratio of Gln to 2-ketoglutarate decreases, P-II is uridylylated to P-II-UMP. P-II-UMP allows the deadenylation of glutamine synthetase (GS), thus activating the enzyme. Conversely, in nitrogen excess P-II is deuridylated and promotes the adenylation of GS. P-II indirectly controls the transcription of the GS gene (glnA). P-II prevents NR-II-catalyzed conversion of NR-I to NR-I-phosphate, the transcriptional activator of glnA. When P-II is uridylylated to P-II-UMP, these events are reversed (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

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