>gnl|CDD|58616 cd04250, AAK_NAGK-C, AAK_NAGK-C: N-Acetyl-L-glutamate kinase - cyclic (NAGK-C) catalyzes the phosphorylation of the gamma-COOH group of N-acetyl-L-glutamate (NAG) by ATP in the second step of arginine biosynthesis found in some bacteria and photosynthetic organisms using the non-acetylated, cyclic route of ornithine biosynthesis. In this pathway, glutamate is first N-acetylated and then phosphorylated by NAGK to give phosphoryl NAG, which is converted to NAG-ornithine. There are two variants of this pathway. In one, typified by the pathway in Thermotoga maritima and Pseudomonas aeruginosa, the acetyl group is recycled by reversible transacetylation from acetylornithine to glutamate. The phosphorylation of NAG by NAGK is feedback inhibited by arginine. In photosynthetic organisms, NAGK is the target of the nitrogen-signaling protein PII. Hexameric formation of NAGK domains appears to be essential to both arginine inhibition and NAGK-PII complex formation. NAGK-C are members of the Amino Acid Kinase Superfamily (AAK).. Length = 279

 Score =  180 bits (459), Expect = 1e-46
 Identities = 82/143 (57%), Positives = 104/143 (72%), Gaps = 3/143 (2%)

Query: 1   LGFVGNVIKVNRTILDLLIKSGIIPVIAPIAPGYDGATYNINADTFAGAIAEKLNVIRLL 60
           LGFVG V +VN  +L+ L+++G IPVIAP+  G DG TYNINADT AGAIA  L   +L+
Sbjct: 137 LGFVGEVTEVNPELLETLLEAGYIPVIAPVGVGEDGETYNINADTAAGAIAAALKAEKLI 196

Query: 61  FLTDVPGVLDK---NRQLISKLSINEARTLIKDGTISGGMIPKIETSIKAIENGVKSVAI 117
            LTDV GVLD       LIS++S+ EA  LI DG ISGGMIPK+E  I+A+E GVK+  I
Sbjct: 197 LLTDVAGVLDDPNDPGSLISEISLKEAEELIADGIISGGMIPKVEACIEALEGGVKAAHI 256

Query: 118 LDGKKPHSILMEIFTKNGSGTLL 140
           +DG+ PHS+L+EIFT  G GT++
Sbjct: 257 IDGRVPHSLLLEIFTDEGIGTMI 279