Identification
Name:3-oxoacyl-[acyl-carrier-protein] synthase 2
Synonyms:
  • 3-oxoacyl-[acyl-carrier-protein] synthase II
  • Beta-ketoacyl-ACP synthase II
  • KAS II
Gene Name:fabF
Enzyme Class:
Biological Properties
General Function:Involved in transferase activity, transferring acyl groups other than amino-acyl groups
Specific Function:Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Has a preference for short chain acid substrates and may function to supply the octanoic substrates for lipoic acid biosynthesis
Cellular Location:Not Available
SMPDB Pathways:
KEGG Pathways:
KEGG Reactions:
1.0Acetyl-[acyl-carrier protein]+1.0Malonyl-[acyl-carrier protein]1.0Acetoacetyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Acetyl-[acyl-carrier protein] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.0Acetoacetyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Dodecanoyl-[acyl-carrier protein]+1.0Malonyl-[acyl-carrier protein]1.03-Oxotetradecanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Dodecanoyl-[acyl-carrier protein] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxotetradecanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Butyryl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxohexanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Butyryl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxohexanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Hexanoyl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxooctanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Hexanoyl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxooctanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Octanoyl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxodecanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Octanoyl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxodecanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Decanoyl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxododecanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Decanoyl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxododecanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Tetradecanoyl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxohexadecanoyl-[acp]+1.0Thumb+1.0Acyl-carrier protein
1.0Tetradecanoyl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxohexadecanoyl-[acp] + 1.0Carbon dioxide + 1.0Acyl-carrier protein
ReactionCard
1.0Hexadecanoyl-[acp]+1.0Malonyl-[acyl-carrier protein]1.03-Oxostearoyl-[acp]+1.0Acyl-carrier protein+1.0Thumb
1.0Hexadecanoyl-[acp] + 1.0Malonyl-[acyl-carrier protein] ↔ 1.03-Oxostearoyl-[acp] + 1.0Acyl-carrier protein + 1.0Carbon dioxide
ReactionCard
SMPDB Reactions:
1.0a malonyl-[acp]+1.0a malonyl-[acp] methyl ester1.0Thumb+1.0[ACP]+1.03-Ketoglutaryl-[acp] methyl ester
1.0a malonyl-[acp] + 1.0a malonyl-[acp] methyl ester → 1.0Carbon dioxide + 1.0[ACP] + 1.03-Ketoglutaryl-[acp] methyl ester
ReactionCard
1.0a malonyl-[acp]+1.0Glutaryl-[acp] methyl ester 1.0a holo-[acyl-carrier protein]+1.0Thumb+1.03-Ketopimeloyl-[acp] methyl ester
1.0a malonyl-[acp] + 1.0Glutaryl-[acp] methyl ester → 1.0a holo-[acyl-carrier protein] + 1.0Carbon dioxide + 1.03-Ketopimeloyl-[acp] methyl ester
ReactionCard
1.02,3,4-saturated fatty acyl-[acp] +1.0a malonyl-[acp]+1.0Thumb1.0Thumb+1.0a holo-[acyl-carrier protein]+1.03-oxoacyl-[acp] 
1.02,3,4-saturated fatty acyl-[acp] + 1.0a malonyl-[acp] + 1.0Hydrogen ion → 1.0Carbon dioxide + 1.0a holo-[acyl-carrier protein] + 1.03-oxoacyl-[acp] 
ReactionCard
1.0a malonyl-[acp]+1.0Thumb+1.0an acetyl-[acp]1.0Thumb+1.0a holo-[acyl-carrier protein]+1.0acetoacetyl-[acp]
1.0a malonyl-[acp] + 1.0Hydrogen ion + 1.0an acetyl-[acp] → 1.0Carbon dioxide + 1.0a holo-[acyl-carrier protein] + 1.0acetoacetyl-[acp]
ReactionCard
1.0a palmitoleoyl-[acp] +1.0a malonyl-[acp]+1.0Thumb1.0a holo-[acyl-carrier protein]+1.0Thumb+1.03-oxo-cis-vaccenoyl-[acp] 
1.0a palmitoleoyl-[acp]  + 1.0a malonyl-[acp] + 1.0Hydrogen ion → 1.0a holo-[acyl-carrier protein] + 1.0Carbon dioxide + 1.03-oxo-cis-vaccenoyl-[acp] 
ReactionCard
Complex Reactions:
1.0Butyryl-ACP (n-C4:0ACP)+1.0Thumb+1.0Malonyl-[acyl-carrier protein]3.0-Oxohexanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Butyryl-ACP (n-C4:0ACP) + 1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] → 3.0-Oxohexanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Decanoyl-ACP (n-C10:0ACP)+1.0Thumb+1.0Malonyl-[acyl-carrier protein]3.0-Oxododecanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Decanoyl-ACP (n-C10:0ACP) + 1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] → 3.0-Oxododecanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Thumb+1.0Malonyl-[acyl-carrier protein]+1.0Palmitoyl-ACP (n-C16:0ACP)3.0-Oxooctadecanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] + 1.0Palmitoyl-ACP (n-C16:0ACP) → 3.0-Oxooctadecanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Acetyl-ACP+1.0Thumb+1.0Malonyl-[acyl-carrier protein]1.0acyl carrier protein+1.0Acetoacetyl-ACP+1.0Thumb
1.0Acetyl-ACP + 1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] → 1.0acyl carrier protein + 1.0Acetoacetyl-ACP + 1.0Carbon dioxide
ReactionCard
1.0Dodecanoyl-ACP (n-C12:0ACP)+1.0Thumb+1.0Malonyl-[acyl-carrier protein]3.0-Oxotetradecanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Dodecanoyl-ACP (n-C12:0ACP) + 1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] → 3.0-Oxotetradecanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Thumb+1.0Hexanoyl-ACP (n-C6:0ACP)+1.0Malonyl-[acyl-carrier protein]3.0-Oxooctanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Hydrogen ion + 1.0Hexanoyl-ACP (n-C6:0ACP) + 1.0Malonyl-[acyl-carrier protein] → 3.0-Oxooctanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Thumb+1.0Malonyl-[acyl-carrier protein]+1.0Myristoyl-ACP (n-C14:0ACP)3.0-Oxohexadecanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] + 1.0Myristoyl-ACP (n-C14:0ACP) → 3.0-Oxohexadecanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Thumb+1.0Malonyl-[acyl-carrier protein]+1.0Octanoyl-ACP (n-C8:0ACP)3.0-Oxodecanoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Hydrogen ion + 1.0Malonyl-[acyl-carrier protein] + 1.0Octanoyl-ACP (n-C8:0ACP) → 3.0-Oxodecanoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0Thumb+1.0cis-hexadec-9-enoyl-[acyl-carrier protein] (n-C16:1)+1.0Malonyl-[acyl-carrier protein]3.0-oxo-cis-vacc-11-enoyl-[acyl-carrier protein]+1.0acyl carrier protein+1.0Thumb
1.0Hydrogen ion + 1.0cis-hexadec-9-enoyl-[acyl-carrier protein] (n-C16:1) + 1.0Malonyl-[acyl-carrier protein] → 3.0-oxo-cis-vacc-11-enoyl-[acyl-carrier protein] + 1.0acyl carrier protein + 1.0Carbon dioxide
ReactionCard
1.0(Z)-hexadec-11-enoyl-[acyl-carrier-protein]+1.0malonyl-[acyl-carrier-protein]1.0(Z)-3-oxooctadec-13-enoyl-[acyl-carrier-protein]+1.0Thumb+1.0[acyl-carrier-protein]
1.0(Z)-hexadec-11-enoyl-[acyl-carrier-protein] + 1.0malonyl-[acyl-carrier-protein] → 1.0(Z)-3-oxooctadec-13-enoyl-[acyl-carrier-protein] + 1.0Carbon dioxide + 1.0[acyl-carrier-protein]
ReactionCard
Metabolites:
ECMDB IDNameView
ECMDB04030Carbon dioxideMetaboCard
ECMDB21538Heptadecenoic acidMetaboCard
ECMDB21225Hydrogen ionMetaboCard
ECMDB23166malonyl-CoA methyl esterMetaboCard
ECMDB21506Margaric acidMetaboCard
GO Classification:
Function
catalytic activity
transferase activity
transferase activity, transferring acyl groups
transferase activity, transferring acyl groups other than amino-acyl groups
Process
biosynthetic process
carboxylic acid metabolic process
cellular metabolic process
fatty acid biosynthetic process
fatty acid metabolic process
metabolic process
monocarboxylic acid metabolic process
organic acid metabolic process
oxoacid metabolic process
Gene Properties
Blattner:b1095
Gene OrientationClockwise
Centisome Percentage:24.81
Left Sequence End1151162
Right Sequence End1152403
Gene Sequence:
>1242 bp
ATGAACAAAACGCTAATCGCCGCAGCTGTGGCAGGGATAGTTTTACTCGCTTCAAACGCT
CAGGCACAAACCGTACCGGAAGGCTATCAGCTACAGCAAGTGCTCATGATGAGCCGCCAT
AACTTACGTGCGCCGCTGGCGAACAATGGCAGTGTGCTGGAGCAGTCGACGCCGAATAAA
TGGCCAGAATGGGACGTCCCCGGTGGGCAACTCACCACCAAAGGTGGCGTGCTCGAAGTG
TATATGGGCCATTACATGCGTGAATGGCTGGCAGAGCAGGGGATGGTGAAATCGGGGGAA
TGCCCGCCGCCGTACACCGTTTATGCCTATGCCAATAGTCTGCAACGTACCGTTGCGACC
GCACAGTTCTTTATTACCGGCGCATTCCCGGGGTGTGATATTCCTGTGCATCACCAGGAA
AAAATGGGCACTATGGACCCAACCTTTAACCCGGTGATCACCGATGATTCCGCCGCATTC
AGTGAACAGGCGGTGGCGGCAATGGAGAAAGAGCTCAGCAAACTCCAGCTTACCGACAGC
TACCAGCTACTGGAAAAAATCGTTAACTATAAAGATTCCCCTGCCTGTAAAGAGAAACAA
CAGTGTTCGCTGGTGGATGGCAAAAATACCTTTAGCGCCAAGTATCAACAAGAACCAGGT
GTTTCCGGGCCGCTGAAAGTCGGCAACTCGCTGGTAGATGCGTTTACTTTGCAATATTAC
GAAGGTTTTCCGATGGATCAGGTGGCCTGGGGAGAAATCAAATCTGACCAGCAGTGGAAG
GTGTTGTCGAAGCTTAAAAACGGCTACCAGGACAGCCTGTTTACCTCACCGGAAGTGGCG
CGCAATGTTGCGAAACCGCTGGTCAGTTATATCGACAAAGCTCTGGTCACCGATCGCACC
AGCGCACCGAAAATTACAGTGTTGGTTGGGCACGACTCCAACATTGCCTCTCTGTTAACG
GCGCTGGATTTCAAACCGTATCAGTTGCATGACCAGAACGAACGCACGCCGATTGGCGGC
AAAATCGTTTTCCAGCGTTGGCATGACAGCAAAGCCAATCGCGATTTGATGAAAATTGAA
TATGTGTATCAGAGTGCGGAACAGTTACGTAATGCCGATGCGTTAACCCTGCAGGCACCT
GCGCAGCGTGTGACGCTGGAATTAAGCGGTTGCCCGATAGACGCTGATGGTTTCTGCCCG
ATGGATAAGTTTGATAGCGTGTTGAATGAAGCGGTGAAATAA
Protein Properties
Pfam Domain Function:
Protein Residues:413
Protein Molecular Weight:43045
Protein Theoretical pI:6
PDB File:1KAS
Signaling Regions:
  • None
Transmembrane Regions:
  • None
Protein Sequence:
>3-oxoacyl-[acyl-carrier-protein] synthase 2
MSKRRVVVTGLGMLSPVGNTVESTWKALLAGQSGISLIDHFDTSAYATKFAGLVKDFNCE
DIISRKEQRKMDAFIQYGIVAGVQAMQDSGLEITEENATRIGAAIGSGIGGLGLIEENHT
SLMNGGPRKISPFFVPSTIVNMVAGHLTIMYGLRGPSISIATACTSGVHNIGHAARIIAY
GDADVMVAGGAEKASTPLGVGGFGAARALSTRNDNPQAASRPWDKERDGFVLGDGAGMLV
LEEYEHAKKRGAKIYAELVGFGMSSDAYHMTSPPENGAGAALAMANALRDAGIEASQIGY
VNAHGTSTPAGDKAEAQAVKTIFGEAASRVLVSSTKSMTGHLLGAAGAVESIYSILALRD
QAVPPTINLDNPDEGCDLDFVPHEARQVSGMEYTLCNSFGFGGTNGSLIFKKI
References
External Links:
ResourceLink
Uniprot ID:P0AAI5
Uniprot Name:FABF_ECOLI
GenBank Gene ID:AP009048
Genebank Protein ID:1651498
PDB ID:1KAS
Ecogene ID:EG12606
Ecocyc:EG12606
ColiBase:b1095
Kegg Gene:b1095
EchoBASE ID:EB2490
CCDB:FABF_ECOLI
BacMap:16129058
General Reference:
  • Blattner, F. R., Plunkett, G. 3rd, Bloch, C. A., Perna, N. T., Burland, V., Riley, M., Collado-Vides, J., Glasner, J. D., Rode, C. K., Mayhew, G. F., Gregor, J., Davis, N. W., Kirkpatrick, H. A., Goeden, M. A., Rose, D. J., Mau, B., Shao, Y. (1997). "The complete genome sequence of Escherichia coli K-12." Science 277:1453-1462. Pubmed: 9278503
  • Edwards, P., Nelsen, J. S., Metz, J. G., Dehesh, K. (1997). "Cloning of the fabF gene in an expression vector and in vitro characterization of recombinant fabF and fabB encoded enzymes from Escherichia coli." FEBS Lett 402:62-66. Pubmed: 9013860
  • Garwin, J. L., Klages, A. L., Cronan, J. E. Jr (1980). "Beta-ketoacyl-acyl carrier protein synthase II of Escherichia coli. Evidence for function in the thermal regulation of fatty acid synthesis." J Biol Chem 255:3263-3265. Pubmed: 6988423
  • Hayashi, K., Morooka, N., Yamamoto, Y., Fujita, K., Isono, K., Choi, S., Ohtsubo, E., Baba, T., Wanner, B. L., Mori, H., Horiuchi, T. (2006). "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110." Mol Syst Biol 2:2006.0007. Pubmed: 16738553
  • Huang, W., Jia, J., Edwards, P., Dehesh, K., Schneider, G., Lindqvist, Y. (1998). "Crystal structure of beta-ketoacyl-acyl carrier protein synthase II from E.coli reveals the molecular architecture of condensing enzymes." EMBO J 17:1183-1191. Pubmed: 9482715
  • Jackowski, S., Rock, C. O. (1987). "Altered molecular form of acyl carrier protein associated with beta-ketoacyl-acyl carrier protein synthase II (fabF) mutants." J Bacteriol 169:1469-1473. Pubmed: 3549687
  • Magnuson, K., Carey, M. R., Cronan, J. E. Jr (1995). "The putative fabJ gene of Escherichia coli fatty acid synthesis is the fabF gene." J Bacteriol 177:3593-3595. Pubmed: 7768872
  • Moche, M., Schneider, G., Edwards, P., Dehesh, K., Lindqvist, Y. (1999). "Structure of the complex between the antibiotic cerulenin and its target, beta-ketoacyl-acyl carrier protein synthase." J Biol Chem 274:6031-6034. Pubmed: 10037680
  • Oshima, T., Aiba, H., Baba, T., Fujita, K., Hayashi, K., Honjo, A., Ikemoto, K., Inada, T., Itoh, T., Kajihara, M., Kanai, K., Kashimoto, K., Kimura, S., Kitagawa, M., Makino, K., Masuda, S., Miki, T., Mizobuchi, K., Mori, H., Motomura, K., Nakamura, Y., Nashimoto, H., Nishio, Y., Saito, N., Horiuchi, T., et, a. l. .. (1996). "A 718-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 12.7-28.0 min region on the linkage map." DNA Res 3:137-155. Pubmed: 8905232
  • Siggaard-Andersen, M., Wissenbach, M., Chuck, J. A., Svendsen, I., Olsen, J. G., von Wettstein-Knowles, P. (1994). "The fabJ-encoded beta-ketoacyl-[acyl carrier protein] synthase IV from Escherichia coli is sensitive to cerulenin and specific for short-chain substrates." Proc Natl Acad Sci U S A 91:11027-11031. Pubmed: 7972002