ID METE_BACP2 Reviewed; 762 AA. AC A8FCD2; DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot. DT 13-NOV-2007, sequence version 1. DT 02-SEP-2026, entry version 102. DE RecName: Full=5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase {ECO:0000255|HAMAP-Rule:MF_00172}; DE EC=2.1.1.14 {ECO:0000255|HAMAP-Rule:MF_00172}; DE AltName: Full=Cobalamin-independent methionine synthase {ECO:0000255|HAMAP-Rule:MF_00172}; DE AltName: Full=Methionine synthase, vitamin-B12 independent isozyme {ECO:0000255|HAMAP-Rule:MF_00172}; GN Name=metE {ECO:0000255|HAMAP-Rule:MF_00172}; GN OrderedLocusNames=BPUM_1215; OS Bacillus pumilus (strain SAFR-032). OC Bacteria; Bacillati; Bacillota; Bacilli; Caryophanales; Bacillaceae; OC Bacillus. OX NCBI_TaxID=315750; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=SAFR-032; RX PubMed=17895969; DOI=10.1371/journal.pone.0000928; RA Gioia J., Yerrapragada S., Qin X., Jiang H., Igboeli O.C., Muzny D., RA Dugan-Rocha S., Ding Y., Hawes A., Liu W., Perez L., Kovar C., Dinh H., RA Lee S., Nazareth L., Blyth P., Holder M., Buhay C., Tirumalai M.R., Liu Y., RA Dasgupta I., Bokhetache L., Fujita M., Karouia F., Eswara Moorthy P., RA Siefert J., Uzman A., Buzumbo P., Verma A., Zwiya H., McWilliams B.D., RA Olowu A., Clinkenbeard K.D., Newcombe D., Golebiewski L., Petrosino J.F., RA Nicholson W.L., Fox G.E., Venkateswaran K., Highlander S.K., RA Weinstock G.M.; RT "Paradoxical DNA repair and peroxide resistance gene conservation in RT Bacillus pumilus SAFR-032."; RL PLoS ONE 2:E928-E928(2007). CC -!- FUNCTION: Catalyzes the transfer of a methyl group from 5- CC methyltetrahydrofolate to homocysteine resulting in methionine CC formation. {ECO:0000255|HAMAP-Rule:MF_00172}. CC -!- CATALYTIC ACTIVITY: CC Reaction=5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = CC tetrahydropteroyltri-L-glutamate + L-methionine; CC Xref=Rhea:RHEA:21196, ChEBI:CHEBI:57844, ChEBI:CHEBI:58140, CC ChEBI:CHEBI:58199, ChEBI:CHEBI:58207; EC=2.1.1.14; CC Evidence={ECO:0000255|HAMAP-Rule:MF_00172}; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00172}; CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00172}; CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo CC pathway; L-methionine from L-homocysteine (MetE route): step 1/1. CC {ECO:0000255|HAMAP-Rule:MF_00172}. CC -!- SIMILARITY: Belongs to the vitamin-B12 independent methionine synthase CC family. {ECO:0000255|HAMAP-Rule:MF_00172}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP000813; ABV61899.1; -; Genomic_DNA. DR RefSeq; WP_012009702.1; NC_009848.4. DR AlphaFoldDB; A8FCD2; -. DR SMR; A8FCD2; -. DR STRING; 315750.BPUM_1215; -. DR PaxDb; 315750-BPUM_1215; -. DR GeneID; 5620479; -. DR KEGG; bpu:BPUM_1215; -. DR eggNOG; COG0620; Bacteria. DR HOGENOM; CLU_013175_0_0_9; -. DR OrthoDB; 244285at2; -. DR UniPathway; UPA00051; UER00082. DR Proteomes; UP000001355; Chromosome. DR GO; GO:0003871; F:5-methyltetrahydropteroyltriglutamate-homocysteine S-methyltransferase activity; IEA:UniProtKB-UniRule. DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro. DR GO; GO:0008652; P:amino acid biosynthetic process; IEA:InterPro. DR CDD; cd03311; CIMS_C_terminal_like; 1. DR CDD; cd03312; CIMS_N_terminal_like; 1. DR Gene3D; 3.20.20.210; -; 2. DR HAMAP; MF_00172; Meth_synth; 1. DR InterPro; IPR013215; Cbl-indep_Met_Synth_N. DR InterPro; IPR006276; Cobalamin-indep_Met_synthase. DR InterPro; IPR002629; Met_Synth_C/arc. DR InterPro; IPR038071; UROD/MetE-like_sf. DR NCBIfam; TIGR01371; met_syn_B12ind; 1. DR NCBIfam; NF003556; PRK05222.1; 1. DR PANTHER; PTHR30519; 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE; 1. DR Pfam; PF08267; Meth_synt_1; 1. DR Pfam; PF01717; Meth_synt_2; 1. DR PIRSF; PIRSF000382; MeTrfase_B12_ind; 1. DR SUPFAM; SSF51726; UROD/MetE-like; 2. PE 3: Inferred from homology; KW Amino-acid biosynthesis; Metal-binding; Methionine biosynthesis; KW Methyltransferase; Reference proteome; Repeat; Transferase; Zinc. FT CHAIN 1..762 FT /note="5-methyltetrahydropteroyltriglutamate--homocysteine FT methyltransferase" FT /id="PRO_1000058312" FT ACT_SITE 698 FT /note="Proton donor" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 18..21 FT /ligand="5-methyltetrahydropteroyltri-L-glutamate" FT /ligand_id="ChEBI:CHEBI:58207" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 112 FT /ligand="5-methyltetrahydropteroyltri-L-glutamate" FT /ligand_id="ChEBI:CHEBI:58207" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 435..437 FT /ligand="L-homocysteine" FT /ligand_id="ChEBI:CHEBI:58199" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 435..437 FT /ligand="L-methionine" FT /ligand_id="ChEBI:CHEBI:57844" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 488 FT /ligand="L-homocysteine" FT /ligand_id="ChEBI:CHEBI:58199" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 488 FT /ligand="L-methionine" FT /ligand_id="ChEBI:CHEBI:57844" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 519..520 FT /ligand="5-methyltetrahydropteroyltri-L-glutamate" FT /ligand_id="ChEBI:CHEBI:58207" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 565 FT /ligand="5-methyltetrahydropteroyltri-L-glutamate" FT /ligand_id="ChEBI:CHEBI:58207" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 603 FT /ligand="L-homocysteine" FT /ligand_id="ChEBI:CHEBI:58199" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 603 FT /ligand="L-methionine" FT /ligand_id="ChEBI:CHEBI:57844" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 609 FT /ligand="5-methyltetrahydropteroyltri-L-glutamate" FT /ligand_id="ChEBI:CHEBI:58207" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 645 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="catalytic" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 647 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="catalytic" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 669 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="catalytic" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" FT BINDING 730 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="catalytic" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172" SQ SEQUENCE 762 AA; 86584 MW; A789135CBDBC0898 CRC64; MTIVKTSNLG FPRIGLNREW KKALESYWKG QTDRETLLST LDEQFLTAIK TQIDQQIDVV PSGDFTFYDH VLDTAVMFNW IPERFRSLKD PLDTYFAIAR GTKDAVSSEM TKWFNTNYHY IVPEYEKSTE FKLTHNKPLE AYEKVKKAFG VETKPVVLGL YTFVSLSKGY EPNEVKEIQQ RLIPLYTQLL KELEEAGVKW VQIDEPALVT ASYEDVKAVK EIYQTITEAV PALNILLQTY FDSVDAYEEL VTYPVEAIGL DFVHDQGRNL DQVKKHGFPK DKILAAGVID GRNIWRSDLG ERLTFVSEVI AGAQPKEVWL QPSSSLLHVP VAKHPSEQLE EKLLNGLSYA TEKLAELTTL KEGLTKGAAA IEAAINEAEQ ALLTLKEFAK GTNADFTAER NNLSSKDFKR PVAFEERLRI QNESLELPLL PTTTIGSFPQ SAEVRSARQK WRKNEWTNAE YDEFIKKETK RWIDIQEEIG LDVLVHGEFE RTDMVEYFGE KLAGFAFTKF AWVQSYGSRC VKPPIIYGDV EFTAPMTVKE TVYAQSLTEK KVKGMLTGPV TILNWSFPRT DISRKDIAFQ IAFALRKEVE ALEEAGIQVI QVDEPALREG LPLKESDWAD YLNWAAESFR LSTSSVQNET QIHTHMCYSN FEDIVDTIED LDADVITIEH SRSHGGFLDY LEKHPYLKGL GLGVYDIHSP RVPSVEEMSQ IIDDALNVCP TDRFWVNPDC GLKTRQEPET IAALKNMVTA AEVARKKLAQ HA //