Activates acetate so that it can be used for lipid synthesis or for energy generation. Drosophila melanogaster (taxid: 7227) EC: 6EC: .EC: 2EC: .EC: 1EC: .EC: 1
>sp|Q9NR19|ACSA_HUMAN Acetyl-coenzyme A synthetase, cytoplasmic OS=Homo sapiens GN=ACSS2 PE=1 SV=1
Score = 97.8 bits (242), Expect = 2e-20, Method: Composition-based stats.
Identities = 40/95 (42%), Positives = 63/95 (66%), Gaps = 1/95 (1%)
Query: 8 PNADLSKKSYISTMAKYQEVYKKSIECPEEFWGQIAKQFHWETPIDLDRFHSHNFNISNG 67
P+ + S ++ +S+ +Y E++K+S++ P FW IA +F+W+ D+ S N ++ G
Sbjct: 94 PSKEFSGQALVSSPQQYMEMHKRSMDDPAAFWSDIASEFYWKQKWG-DQVFSENLDVRKG 152
Query: 68 PISIKWLEGATTNICYNLLDRNIRLGLGDKVAFYW 102
PISI+W +G TNICYN LD+N+ GLGDK A +W
Sbjct: 153 PISIEWFKGGITNICYNCLDKNVEAGLGDKTAIHW 187
Catalyzes the production of acetyl-CoA, an activated form of acetate that can be used for lipid synthesis or for energy generation. May play a limited role in the biosynthesis of lipids.
>gi|24667955|ref|NP_730611.1| acetyl coenzyme A synthase, isoform A [Drosophila melanogaster] gi|442633865|ref|NP_001014599.2| acetyl coenzyme A synthase, isoform D [Drosophila melanogaster] gi|23094223|gb|AAF51695.2| acetyl coenzyme A synthase, isoform A [Drosophila melanogaster] gi|329112613|gb|AEB72010.1| FI04028p [Drosophila melanogaster] gi|440216111|gb|AAX52767.2| acetyl coenzyme A synthase, isoform D [Drosophila melanogaster]
Score = 86.4 bits (215), Expect = 6e-24
Identities = 35/85 (41%), Positives = 44/85 (51%), Gaps = 11/85 (12%)
Query: 20 TMAKYQEVYKKSIECPEEFWGQIAKQFHWETPID--LDRFHSHNFNISNGPISIKWLEGA 77
M YQE+Y++SIE PE FW + A++ W P D LD + IKW G
Sbjct: 3 DMEAYQELYEESIEDPEGFWAEQAEELDWFKPWDKVLD---------WSNAPFIKWFVGG 53
Query: 78 TTNICYNLLDRNIRLGLGDKVAFYW 102
N YN LDR++ G GDKVA W
Sbjct: 54 KLNASYNCLDRHLETGRGDKVAIIW 78
This presumed domain is functionally uncharacterized. This domain is found in bacteria, archaea and eukaryotes. This domain is about 80 amino acids in length. This domain is found associated with pfam00501. This domain has a conserved DRH sequence motif. This domain has two completely conserved residues (N and A) that may be functionally important. Length = 82
>gnl|CDD|213313 cd05966, ACS, Acetyl-CoA synthetase (also known as acetate-CoA ligase and acetyl-activating enzyme)
Score = 93.8 bits (234), Expect = 6e-24
Identities = 31/75 (41%), Positives = 39/75 (52%), Gaps = 7/75 (9%)
Query: 28 YKKSIECPEEFWGQIAKQFHWETPIDLDRFHSHNFNISNGPISIKWLEGATTNICYNLLD 87
YK+SIE PEEFW + A++ W P D S P KW G N YN LD
Sbjct: 1 YKESIEDPEEFWAEQAEELDWFKPWDKVLDWS-------NPPFAKWFVGGKLNASYNCLD 53
Query: 88 RNIRLGLGDKVAFYW 102
R+++ G G+KVA W
Sbjct: 54 RHLKAGRGNKVAIIW 68
Acetyl-CoA synthetase (ACS) catalyzes the formation of acetyl-CoA from acetate, CoA, and ATP. Synthesis of acetyl-CoA is carried out in a two-step reaction. In the first step, the enzyme catalyzes the synthesis of acetyl-AMP intermediate from acetate and ATP. In the second step, acetyl-AMP reacts with CoA to produce acetyl-CoA. This enzyme is widely present in all living organisms. The activity of this enzyme is crucial for maintaining the required levels of acetyl-CoA, a key intermediate in many important biosynthetic and catabolic processes. Acetyl-CoA is used in the biosynthesis of glucose, fatty acids, and cholesterol. It can also be used in the production of energy in the citric acid cycle. Eukaryotes typically have two isoforms of acetyl-CoA synthetase, a cytosolic form involved in biosynthetic processes and a mitochondrial form primarily involved in energy generation. Length = 602
Score = 70.7 bits (174), Expect = 9e-16
Identities = 28/86 (32%), Positives = 47/86 (54%), Gaps = 9/86 (10%)
Query: 18 ISTMAKYQEVYKKSIECPEEFWGQIAKQ-FHWETPIDLDRFHSHNFNISNGPISIKWLEG 76
I+ + +Y+E+Y++SIE P++FW ++A++ W P + + S P KW G
Sbjct: 1 IANLEQYKELYEESIEDPDKFWAKLARELLDWFKP------FTKVLDWSFPP-FYKWFVG 53
Query: 77 ATTNICYNLLDRNIRLGLGDKVAFYW 102
N+ YN +DR++ DKVA W
Sbjct: 54 GELNVSYNCVDRHLE-ARPDKVAIIW 78
This model describes acetate-CoA ligase (EC 6.2.1.1), also called acetyl-CoA synthetase and acetyl-activating enzyme. It catalyzes the reaction ATP + acetate + CoA = AMP + diphosphate + acetyl-CoA and belongs to the family of AMP-binding enzymes described by pfam00501. Length = 625
This family contains one of three readily separable clades of proteins in the group of acetate and propionate--CoA ligases. Characterized members of this family act on propionate. From propionyl-CoA, there is a cyclic degradation pathway: it is ligated by PrpC to the TCA cycle intermediate oxaloacetate, acted upon further by PrpD and an aconitase, then cleaved by PrpB to pyruvate and the TCA cycle intermediate succinate. Length = 628
Score = 62.7 bits (153), Expect = 6e-13
Identities = 23/70 (32%), Positives = 33/70 (47%), Gaps = 11/70 (15%)
Query: 35 PEEFWGQIAKQFHWETPID--LDRFHSHNFNISNGPISIKWLEGATTNICYNLLDRNIRL 92
PE FW + A W P + LD + P +W G N+CYN +DR+I
Sbjct: 3 PEAFWAEQANLIDWYKPWEKVLDNSN---------PPFTRWFVGGRLNLCYNAVDRHIED 53
Query: 93 GLGDKVAFYW 102
G GD++A +
Sbjct: 54 GRGDQIALIY 63
PrpE catalyzes the first step of the 2-methylcitric acid cycle for propionate catabolism. It activates propionate to propionyl-CoA in a two-step reaction, which proceeds through a propionyl-AMP intermediate and requires ATP and Mg2+. In Salmonella enterica, the PrpE protein is required for growth of S. enterica on propionate and can substitute for the acetyl-CoA synthetase (Acs) enzyme during growth on acetate. PrpE can also activate acetate, 3HP, and butyrate to their corresponding CoA-thioesters, although with less efficiency. Length = 607
>gnl|CDD|223442 COG0365, Acs, Acyl-coenzyme A synthetases/AMP-(fatty) acid ligases [Lipid metabolism]
This enzyme catalyzes the first step of the mevalonate pathway of IPP biosynthesis. Most bacteria do not use this pathway, but rather the deoxyxylulose pathway.
This model describes acetate-CoA ligase (EC 6.2.1.1), also called acetyl-CoA synthetase and acetyl-activating enzyme. It catalyzes the reaction ATP + acetate + CoA = AMP + diphosphate + acetyl-CoA and belongs to the family of AMP-binding enzymes described by Pfam model pfam00501.
This family contains one of three readily separable clades of proteins in the group of acetate and propionate--CoA ligases. Characterized members of this family act on propionate. From propionyl-CoA, there is a cyclic degradation pathway: it is ligated by PrpC to the TCA cycle intermediate oxaloacetate, acted upon further by PrpD and an aconitase, then cleaved by PrpB to pyruvate and the TCA cycle intermediate succinate.