Reverse Reaction of Lysophosphatidylinositol Acyltransferase
Reverse Reaction of Lysophosphatidylinositol Acyltransferase
复制标题
溶血磷脂酰肌醇酰基转移酶的逆反应
DOI:
10.1074/jbc.m303391200
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发表时间:
2003
影响因子:
4.8
通讯作者:
K. Waku
中科院分区:
文献类型:
--
作者:
A. Yamashita;Masanobu Watanabe;Kazuaki Sato;T. Miyashita;Tomonari Nagatsuka;Hironori Kondo;N. Kawagishi;Hiroki Nakanishi;Ryouko Kamata;T. Sugiura;K. Waku
CoA-dependent transacylation activity in microsomes catalyzes the transfer of fatty acid between phospholipids and lysophospholipids in the presence of CoA without the generation of free fatty acid. We examined the mechanism of the transacylation system using partially purified acyl-CoA:lysophosphatidylinositol (LPI) acyltransferase (LPIAT) from rat liver microsomes to test our hypothesis that both the reverse and forward reactions of acyl-CoA:lysophospholipid acyltransferases are involved in the CoA-dependent transacylation process. The purified LPIAT fraction exhibited ATP-independent acyl-CoA synthetic activity and CoA-dependent LPI generation from PI, suggesting that LPIAT could operate in reverse to form acyl-CoA and LPI. CoA-dependent acylation of LPI by the purified LPIAT fraction required PI as the acyl donor. In addition, the combination of purified LPIAT and recombinant lysophosphatidic acid acyltransferase could reconstitute CoA-dependent transacylation between PI and phosphatidic acid. These results suggest that the CoA-dependent transacylation system consists of the following: 1) acyl-CoA synthesis from phospholipid through the reverse action of acyl-CoA:lysophospholipid acyltransferases; and 2) transfer of fatty acyl moiety from the newly formed acyl-CoA to lysophospholipid through the forward action of acyl-CoA:lysophospholipid acyltransferases.
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DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Robinson,M;Blank,ML;Snyder,F
通讯作者:
Snyder,F
DOI:
10.1016/s0021-9258(17)44891-5
发表时间:
1990-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Jack Coleman
通讯作者:
Jack Coleman
DOI:
10.1016/0005-2760(91)90071-o
发表时间:
1991
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Darnell,JC;Saltiel,AR
通讯作者:
Saltiel,AR
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Itabe,H;King,WC;Reynolds,CN;Glomset,JA
通讯作者:
Glomset,JA
DOI:
10.1021/bi971749y
发表时间:
1998
期刊:
Biochemistry.
影响因子:
--
作者:
Hollenback,D;Glomset,JA
通讯作者:
Glomset,JA