Protein Info for AMB_RS04150 in Magnetospirillum magneticum AMB-1

Annotation: acetylornithine transaminase

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

Best Hits

Swiss-Prot: 58% identical to ARGD1_BRADU: Acetylornithine aminotransferase 1 (argD1) from Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110)

KEGG orthology group: K00821, acetylornithine/N-succinyldiaminopimelate aminotransferase [EC: 2.6.1.11 2.6.1.17] (inferred from 100% identity to mag:amb0812)

MetaCyc: 46% identical to succinylornithine transaminase subunit (Pseudomonas aeruginosa)
Succinylornithine transaminase. [EC: 2.6.1.81]; Ornithine aminotransferase. [EC: 2.6.1.81, 2.6.1.13]; Acetylornithine transaminase. [EC: 2.6.1.81, 2.6.1.13, 2.6.1.11]

Predicted SEED Role

"Acetylornithine aminotransferase (EC 2.6.1.11)" in subsystem Arginine Biosynthesis extended (EC 2.6.1.11)

MetaCyc Pathways

aspartate superpathway (22/25 steps found)
L-arginine biosynthesis II (acetyl cycle) (10/10 steps found)
L-arginine biosynthesis I (via L-ornithine) (9/9 steps found)
L-lysine biosynthesis I (9/9 steps found)
superpathway of L-lysine, L-threonine and L-methionine biosynthesis I (15/18 steps found)
L-arginine biosynthesis III (via N-acetyl-L-citrulline) (8/9 steps found)
L-ornithine biosynthesis I (5/5 steps found)
L-ornithine biosynthesis II (3/3 steps found)
L-proline biosynthesis III (from L-ornithine) (3/3 steps found)
L-arginine degradation XIII (reductive Stickland reaction) (4/5 steps found)
L-citrulline biosynthesis (6/8 steps found)
L-arginine degradation VI (arginase 2 pathway) (3/4 steps found)
L-arginine degradation I (arginase pathway) (2/3 steps found)
superpathway of L-citrulline metabolism (8/12 steps found)
L-N^δ-acetylornithine biosynthesis (4/7 steps found)
superpathway of arginine and polyamine biosynthesis (11/17 steps found)
L-arginine degradation II (AST pathway) (1/5 steps found)

KEGG Metabolic Maps

Isozymes

Compare fitness of predicted isozymes for: 2.6.1.11, 2.6.1.17

Use Curated BLAST to search for 2.6.1.11 or 2.6.1.13 or 2.6.1.17 or 2.6.1.81

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Compare to protein structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

See Q2W959 at UniProt or InterPro

Protein Sequence (388 amino acids)

>AMB_RS04150 acetylornithine transaminase (Magnetospirillum magneticum AMB-1)
MFPDNLLPVFDRTDVIFEQGEGAWLTASDGRRFLDFGAGVAVNALGHAHPRLVAALEAQA
GKLWHCSNLYRVPGQERVAERLIKASFADTAFFCNTGAEAMELVIKIARRYHHCAGRPER
NRIVACTGSFHGRTIATLAAAGTPKYLEGFGPVAQGFDHVPYGDLEAARGAIGSNTAALL
VEPVQGEGGIRPADPAYLRGLRALADQFGLLLLMDEVQTGIGRTGKLFAHEWSGIAPDVM
GLAKGLGGGFPVGAVLATEKAASCMTPGTHGCTFGGNPLAMAVAEAVLDEVMAPGFLERV
QAVAALLRGRLDDLARRYPGAIAQVRGQGLMLGLKTVPVNTEFNAKLFAAGLLAVGAGDN
VVRLVPPLIIGEAEVERAVEIIDGVCRG