Substrate specificity of the cypemycin decarboxylase CypD.
Substrate specificity of the cypemycin decarboxylase CypD.
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赛霉素脱羧酶 CypD 的底物特异性。
DOI:
10.1016/j.synbio.2018.09.002
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发表时间:
2018-09
影响因子:
4.8
通讯作者:
Zhang Q
中科院分区:
文献类型:
--
作者:
Ding W;Mo T;Mandalapu D;Zhang Q
The linaridin antibiotic cypemycin is a ribosomal synthesized and post-translationally modified peptide (RiPP) that possesses potent activity against mouse leukemia cells. This peptide natural product contains an S-[(Z)-2-aminovinyl]-d-cysteine (AviCys) moiety in the C-terminus. Formation of AviCys moiety requires an oxidative decarboxylation of the C-terminal Cys of the precursor peptide CypA, and this process is catalyzed by a flavin-containing protein CypD. In this work, we tested CypD substrate specificity with a series of synthetic oligopeptides. We show that most of the N-terminal sequence of CypA is not required for CypD activity, and the C-terminal three residues serve as the minimal structural element for enzyme recognition. We also show that CypD tolerates various substrates with modified C-termini, allowing for the generation of four novel cypemycin variants with modified AviCys moiety by site direct mutagenesis of the precursor peptide CypA. Our study demonstrates the relaxed substrate specificity of CypD and lays a foundation for future bioengineering of AviCys-containing natural products.
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影响因子:
2.9
作者:
Mahanta N;Hudson GA;Mitchell DA
通讯作者:
Mitchell DA
影响因子:
5.5
作者:
Benjdia A;Balty C;Berteau O
通讯作者:
Berteau O
影响因子:
62.1
作者:
Repka LM;Chekan JR;Nair SK;van der Donk WA
通讯作者:
van der Donk WA
影响因子:
4
作者:
Ortega MA;Cogan DP;Mukherjee S;Garg N;Li B;Thibodeaux GN;Maffioli SI;Donadio S;Sosio M;Escano J;Smith L;Nair SK;van der Donk WA
通讯作者:
van der Donk WA
影响因子:
3.2
作者:
Majer, F;Schmid, DG;Kupke, T
通讯作者:
Kupke, T