Time-resolved β-lactam cleavage by L1 metallo-β-lactamase.
Time-resolved β-lactam cleavage by L1 metallo-β-lactamase.
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DOI:
10.1038/s41467-022-35029-3
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发表时间:
2022-11-30
影响因子:
16.6
通讯作者:
Joachimiak A
中科院分区:
文献类型:
--
作者:
Wilamowski M;Sherrell DA;Kim Y;Lavens A;Henning RW;Lazarski K;Shigemoto A;Endres M;Maltseva N;Babnigg G;Burdette SC;Srajer V;Joachimiak A
Serial x-ray crystallography can uncover binding events, and subsequent chemical conversions occurring during enzymatic reaction. Here, we reveal the structure, binding and cleavage of moxalactam antibiotic bound to L1 metallo-β-lactamase (MBL) from Stenotrophomonas maltophilia. Using time-resolved serial synchrotron crystallography, we show the time course of β-lactam hydrolysis and determine ten snapshots (20, 40, 60, 80, 100, 150, 300, 500, 2000 and 4000 ms) at 2.20 Å resolution. The reaction is initiated by laser pulse releasing Zn2+ ions from a UV-labile photocage. Two metal ions bind to the active site, followed by binding of moxalactam and the intact β-lactam ring is observed for 100 ms after photolysis. Cleavage of β-lactam is detected at 150 ms and the ligand is significantly displaced. The reaction product adjusts its conformation reaching steady state at 2000 ms corresponding to the relaxed state of the enzyme. Only small changes are observed in the positions of Zn2+ ions and the active site residues. Mechanistic details captured here can be generalized to other MBLs. Metallo-β-lactamases cleave β-lactam moiety of many broadly used antibiotics. Here the authors captured mechanistic details of the enzyme catalyzed reaction using time-resolved xray synchrotron serial crystallography.
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DOI:
10.1063/1.4972069
发表时间:
2017-07
期刊:
Structural dynamics (Melville, N.Y.)
影响因子:
--
作者:
Kupitz C;Olmos JL Jr;Holl M;Tremblay L;Pande K;Pandey S;Oberthür D;Hunter M;Liang M;Aquila A;Tenboer J;Calvey G;Katz A;Chen Y;Wiedorn MO;Knoska J;Meents A;Majriani V;Norwood T;Poudyal I;Grant T;Miller MD;Xu W;Tolstikova A;Morgan A;Metz M;Martin-Garcia JM;Zook JD;Roy-Chowdhury S;Coe J;Nagaratnam N;Meza D;Fromme R;Basu S;Frank M;White T;Barty A;Bajt S;Yefanov O;Chapman HN;Zatsepin N;Nelson G;Weierstall U;Spence J;Schwander P;Pollack L;Fromme P;Ourmazd A;Phillips GN Jr;Schmidt M
通讯作者:
Schmidt M
影响因子:
4.2
作者:
Khan AU;Maryam L;Zarrilli R
通讯作者:
Zarrilli R
影响因子:
3.7
作者:
Kim Y;Tesar C;Mire J;Jedrzejczak R;Binkowski A;Babnigg G;Sacchettini J;Joachimiak A
通讯作者:
Joachimiak A
影响因子:
15
作者:
Basa, Prem N.;Barr, Chelsea A.;Burdette, Shawn C.
通讯作者:
Burdette, Shawn C.
DOI:
10.3390/antibiotics11030396
发表时间:
2022-03-16
期刊:
Antibiotics (Basel, Switzerland)
影响因子:
--
作者:
Lucic A;Malla TR;Calvopiña K;Tooke CL;Brem J;McDonough MA;Spencer J;Schofield CJ
通讯作者:
Schofield CJ