Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
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TY - JOUR
T1 - Ternary structure reveals mechanism of a membrane diacylglycerol kinase
AU - Li, Dianfan
AU - Stansfeld, Phillip J.
AU - Sansom, Mark S P
AU - Keogh, Aaron
AU - Vogeley, Lutz
AU - Howe, Nicole
AU - Lyons, Joseph A.
AU - Aragao, David
AU - Fromme, Petra
AU - Fromme, Raimund
AU - Basu, Shibom
AU - Grotjohann, Ingo
AU - Kupitz, Christopher
AU - Rendek, Kimberley
AU - Weierstall, Uwe
AU - Zatsepin, Nadia A.
AU - Cherezov, Vadim
AU - Liu, Wei
AU - Bandaru, Sateesh
AU - English, Niall J.
AU - Gati, Cornelius
AU - Barty, Anton
AU - Yefanov, Oleksandr
AU - Chapman, Henry N.
AU - Diederichs, Kay
AU - Messerschmidt, Marc
AU - Boutet, Sébastien
AU - Williams, Garth J.
AU - Seibert, M. Marvin
AU - Caffrey, Martin
PY - 2015
Y1 - 2015
N2 - Diacylglycerol kinase catalyses the ATP-dependent conversion of diacylglycerol to phosphatidic acid in the plasma membrane of Escherichia coli. The small size of this integral membrane trimer, which has 121 residues per subunit, means that available protein must be used economically to craft three catalytic and substrate-binding sites centred about the membrane/cytosol interface. How nature has accomplished this extraordinary feat is revealed here in a crystal structure of the kinase captured as a ternary complex with bound lipid substrate and an ATP analogue. Residues, identified as essential for activity by mutagenesis, decorate the active site and are rationalized by the ternary structure. The 3-phosphate of the ATP analogue is positioned for direct transfer to the primary hydroxyl of the lipid whose acyl chain is in the membrane. A catalytic mechanism for this unique enzyme is proposed. The active site architecture shows clear evidence of having arisen by convergent evolution.
AB - Diacylglycerol kinase catalyses the ATP-dependent conversion of diacylglycerol to phosphatidic acid in the plasma membrane of Escherichia coli. The small size of this integral membrane trimer, which has 121 residues per subunit, means that available protein must be used economically to craft three catalytic and substrate-binding sites centred about the membrane/cytosol interface. How nature has accomplished this extraordinary feat is revealed here in a crystal structure of the kinase captured as a ternary complex with bound lipid substrate and an ATP analogue. Residues, identified as essential for activity by mutagenesis, decorate the active site and are rationalized by the ternary structure. The 3-phosphate of the ATP analogue is positioned for direct transfer to the primary hydroxyl of the lipid whose acyl chain is in the membrane. A catalytic mechanism for this unique enzyme is proposed. The active site architecture shows clear evidence of having arisen by convergent evolution.
UR - http://www.scopus.com/inward/record.url?scp=84950268487&partnerID=8YFLogxK
U2 - 10.1038/ncomms10140
DO - 10.1038/ncomms10140
M3 - Journal article
C2 - 26673816
AN - SCOPUS:84950268487
VL - 6
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 10140
ER -