2026-05-30_00000130|hard|9P2U

Structure of radical S-adenosylmethionine methyltransferase, NocN, from Nocardia with two AzaSAM and [4Fe-4S] cluster bound; X-ray diffraction 1.40Å
Protein #1 420 residues (95% resolved)

MSTAVSLSSLVDVVPAPAPNLPSSTDEQHMLMLYVHVPFCHSKCTFCDWVQAIPTKDLLRKPEDSVRKNYIRALVTEIETRGAQLRAAGQVPYVVYWGGGTASSLDNAEAEAIWGALDSAFDLSTVAEATIECSPDTVDKAKLEFFRGLGFNRVSSGVQSFDDARLRRLGRRHTAGEADRIVHHAREAGFDEVSIDIMSGFPDQELDELRATVEKAVSLPLTHLSLYSFRPTPGTFMRRKLAGTEKRAYLRKQQALFTEARRMIIDAGLPEYASGYFGRVSPFAAMYFQLRADTAGFGSGAISLVDRQFLSHAKGKLHAYIQDPLAYDIDVPAGQDRVLVSFLQAGLAMFDGVLREEWRVSTGTDLDEVLTRPSIAPLADFLRGRGLIEDERGIRLDPRLAGLTLIELAFEMAMSQPESA

MSTAVSLSSLVDVVPAPAPNLPSSTDEQHMLMLYVHVPFCHSKCTFCDWVQAIPTKDLLRKPEDSVRKNYIRALVTEIETRGAQLRAAGQVPYVVYWGGGTASSLDNAEAEAIWGALDSAFDLSTVAEATIECSPDTVDKAKLEFFRGLGFNRVSSGVQSFDDARLRRLGRRHTAGEADRIVHHAREAGFDEVSIDIMSGFPDQELDELRATVEKAVSLPLTHLSLYSFRPTPGTFMRRKLAGTEKRAYLRKQQALFTEARRMIIDAGLPEYASGYFGRVSPFAAMYFQLRADTAGFGSGAISLVDRQFLSHAKGKLHAYIQDPLAYDIDVPAGQDRVLVSFLQAGLAMFDGVLREEWRVSTGTDLDEVLTRPSIAPLADFLRGRGLIEDERGIRLDPRLAGLTLIELAFEMAMSQPESA
Non polymer #2 SA8

InChI=1S/C15H23N7O5/c1-21(3-2-7(16)15(25)26)4-8-10(23)11(24)14(27-8)22-6-20-9-12(17)18-5-19-13(9)22/h5-8,10-11,14,23-24H,2-4,16H2,1H3,(H,25,26)(H2,17,18,19)/t7-,8+,10+,11+,14+/m0/s1

C[N@@](CC[C@@H](C(=O)O)N)C[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)O
Non polymer #3 SF4

InChI=1S/4Fe.4S

[S]12[Fe]3[S]4[Fe]1[S]5[Fe]2[S]3[Fe]45
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Reference