Protein Info for ECD_03896 in Escherichia coli BL21

Annotation: lysine-sensitive aspartokinase 3

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

• TIGR00657: aspartate kinase
  • amino acids 3 to 449 (447 residues), 465 bits, E=2.9e-143
• TIGR00656: aspartate kinase, monofunctional class
  • amino acids 3 to 449 (447 residues), 511.4 bits, E=1.9e-157
• PF00696: AA_kinase
  • amino acids 4 to 277 (274 residues), 158.3 bits, E=4e-50

Best Hits

Swiss-Prot: 100% identical to AK3_ECOLI: Lysine-sensitive aspartokinase 3 (lysC) from Escherichia coli (strain K12)

KEGG orthology group: K00928, aspartate kinase [EC: 2.7.2.4] (inferred from 100% identity to eco:b4024)

MetaCyc: 100% identical to aspartate kinase III (Escherichia coli K-12 substr. MG1655)
Aspartate kinase. [EC: 2.7.2.4]

Predicted SEED Role

"Aspartokinase (EC 2.7.2.4)" in subsystem Lysine Biosynthesis DAP Pathway or Threonine and Homoserine Biosynthesis (EC 2.7.2.4)

MetaCyc Pathways

• aspartate superpathway (24/25 steps found)
• superpathway of L-lysine, L-threonine and L-methionine biosynthesis I (18/18 steps found)
• superpathway of L-isoleucine biosynthesis I (13/13 steps found)
• L-lysine biosynthesis I (9/9 steps found)
• superpathway of S-adenosyl-L-methionine biosynthesis (9/9 steps found)
• superpathway of L-methionine biosynthesis (transsulfuration) (9/9 steps found)
• superpathway of L-homoserine and L-methionine biosynthesis (8/8 steps found)
• superpathway of L-lysine, L-threonine and L-methionine biosynthesis II (13/15 steps found)
• superpathway of L-threonine biosynthesis (6/6 steps found)
• superpathway of L-methionine biosynthesis (by sulfhydrylation) (10/12 steps found)
• L-lysine biosynthesis III (6/7 steps found)
• L-lysine biosynthesis VI (6/7 steps found)
• L-homoserine biosynthesis (3/3 steps found)
• dipicolinate biosynthesis (3/4 steps found)
• L-lysine biosynthesis II (6/9 steps found)
• chorismate biosynthesis II (archaea) (8/12 steps found)
• L-methionine biosynthesis IV (2/4 steps found)
• spermidine biosynthesis II (2/4 steps found)
• ectoine biosynthesis (2/5 steps found)
• 3-dehydroquinate biosynthesis II (archaea) (3/7 steps found)
• norspermidine biosynthesis (2/6 steps found)
• cremeomycin biosynthesis (2/7 steps found)
• grixazone biosynthesis (2/8 steps found)
• superpathway of polyamine biosynthesis III (2/8 steps found)
• platensimycin biosynthesis (6/26 steps found)

KEGG Metabolic Maps

• Biosynthesis of alkaloids derived from ornithine, lysine and nicotinic acid
• Biosynthesis of plant hormones
• Glycine, serine and threonine metabolism
• Lysine biosynthesis

Isozymes

Compare fitness of predicted isozymes for: 2.7.2.4

Use Curated BLAST to search for 2.7.2.4

Protein Sequence (449 amino acids)

>ECD_03896 lysine-sensitive aspartokinase 3 (Escherichia coli BL21)
MSEIVVSKFGGTSVADFDAMNRSADIVLSDANVRLVVLSASAGITNLLVALAEGLEPGER
FEKLDAIRNIQFAILERLRYPNVIREEIERLLENITVLAEAAALATSPALTDELVSHGEL
MSTLLFVEILRERDVQAQWFDVRKVMRTNDRFGRAEPDIAALAELAALQLLPRLNEGLVI
TQGFIGSENKGRTTTLGRGGSDYTAALLAEALHASRVDIWTDVPGIYTTDPRVVSAAKRI
DEIAFAEAAEMATFGAKVLHPATLLPAVRSDIPVFVGSSKDPRAGGTLVCNKTENPPLFR
ALALRRNQTLLTLHSLNMLHSRGFLAEVFGILARHNISVDLITTSEVSVALTLDTTGSTS
TGDTLLTQSLLMELSALCRVEVEEGLALVALIGNDLSKACGVGKEVFGVLEPFNIRMICY
GASSHNLCFLVPGEDAEQVVQKLHSNLFE