Insights into methionine S-methylation in diverse organisms.
Insights into methionine S-methylation in diverse organisms.
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深入了解不同生物体中的蛋氨酸 S-甲基化
DOI:
10.1038/s41467-022-30491-5
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发表时间:
2022-05-26
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Dimethylsulfoniopropionate (DMSP) is an important marine anti-stress compound, with key roles in global nutrient cycling, chemotaxis and, potentially, climate regulation. Recently, diverse marine Actinobacteria, α- and γ-proteobacteria were shown to initiate DMSP synthesis via the methionine (Met) S-methyltransferase enzyme (MmtN), generating S-methyl-Met (SMM). Here we characterize a roseobacterial MmtN, providing structural and mechanistic insights into this DMSP synthesis enzyme. We propose that MmtN uses the proximity and desolvation mechanism for Met S-methylation with two adjacent MmtN monomers comprising the Met binding site. We also identify diverse functional MmtN enzymes in potentially symbiotic archaeal Candidatus Woesearchaeota and Candidate Phyla Radiation (CPR) bacteria, and the animalcule Adineta steineri, not anticipated to produce SMM and/or DMSP. These diverse MmtN enzymes, alongside the larger plant MMT enzyme with an N-terminus homologous to MmtN, likely utilize the same proximity and desolvation mechanism. This study provides important insights into the catalytic mechanism of SMM and/or DMSP production, and proposes roles for these compounds in secondary metabolite production, and SMM cycling in diverse organisms and environments. S-methyl methionine (SMM) is a key molecule in production of dimethylsulfoniopropionate (DMSP), an important marine anti-stress compound, with roles in global nutrient cycling. Here, the authors determine the mechanism of SMM synthesis and uncover unexpected roles for SMM in archaea, CPR bacteria and animals.
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影响因子:
2
作者:
Kiene, RP;Linn, LJ;Bruton, JA
通讯作者:
Bruton, JA
影响因子:
3
作者:
Damm, E.;Kiene, R. P.;Dieckmann, G.
通讯作者:
Dieckmann, G.
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
6.4
作者:
Jaffe AL;Thomas AD;He C;Keren R;Valentin-Alvarado LE;Munk P;Bouma-Gregson K;Farag IF;Amano Y;Sachdeva R;West PT;Banfield JF
通讯作者:
Banfield JF
DOI:
10.1073/pnas.1501765112
发表时间:
2015-08-11
影响因子:
11.1
作者:
Grocholski, Thadee;Dinis, Pedro;Metsa-Ketela, Mikko
通讯作者:
Metsa-Ketela, Mikko