METE_NEIMF
ID METE_NEIMF Reviewed; 758 AA.
AC A1KTL3;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 06-FEB-2007, sequence version 1.
DT 03-AUG-2022, entry version 88.
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}; OrderedLocusNames=NMC0922;
OS Neisseria meningitidis serogroup C / serotype 2a (strain ATCC 700532 / DSM
OS 15464 / FAM18).
OC Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC Neisseria.
OX NCBI_TaxID=272831;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700532 / DSM 15464 / FAM18;
RX PubMed=17305430; DOI=10.1371/journal.pgen.0030023;
RA Bentley S.D., Vernikos G.S., Snyder L.A.S., Churcher C., Arrowsmith C.,
RA Chillingworth T., Cronin A., Davis P.H., Holroyd N.E., Jagels K.,
RA Maddison M., Moule S., Rabbinowitsch E., Sharp S., Unwin L., Whitehead S.,
RA Quail M.A., Achtman M., Barrell B.G., Saunders N.J., Parkhill J.;
RT "Meningococcal genetic variation mechanisms viewed through comparative
RT analysis of serogroup C strain FAM18.";
RL PLoS Genet. 3:230-240(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 = L-
CC methionine + tetrahydropteroyltri-L-glutamate; Xref=Rhea:RHEA:21196,
CC ChEBI:CHEBI:57844, ChEBI:CHEBI:58140, ChEBI:CHEBI:58199,
CC ChEBI:CHEBI:58207; EC=2.1.1.14; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00172};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-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}.
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DR EMBL; AM421808; CAM10199.1; -; Genomic_DNA.
DR RefSeq; WP_002221129.1; NC_008767.1.
DR AlphaFoldDB; A1KTL3; -.
DR SMR; A1KTL3; -.
DR PRIDE; A1KTL3; -.
DR EnsemblBacteria; CAM10199; CAM10199; NMC0922.
DR KEGG; nmc:NMC0922; -.
DR HOGENOM; CLU_013175_0_0_4; -.
DR OMA; KVMKGML; -.
DR OrthoDB; 577156at2; -.
DR UniPathway; UPA00051; UER00082.
DR Proteomes; UP000002286; 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:0009086; P:methionine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR CDD; cd03311; CIMS_C_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 Pfam; PF08267; Meth_synt_1; 1.
DR Pfam; PF01717; Meth_synt_2; 1.
DR PIRSF; PIRSF000382; MeTrfase_B12_ind; 1.
DR SUPFAM; SSF51726; SSF51726; 2.
DR TIGRFAMs; TIGR01371; met_syn_B12ind; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Metal-binding; Methionine biosynthesis;
KW Methyltransferase; Repeat; Transferase; Zinc.
FT CHAIN 1..758
FT /note="5-methyltetrahydropteroyltriglutamate--homocysteine
FT methyltransferase"
FT /id="PRO_1000017258"
FT ACT_SITE 696
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 16..19
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 433..435
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 433..435
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 486
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 486
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 517..518
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 563
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 601
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 601
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 607
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 643
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
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 667
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 728
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
SQ SEQUENCE 758 AA; 85147 MW; 89E2D3B1AF4E1312 CRC64;
MTTLHFSGFP RVGAFRELKF AQEKYWRKEI SEQELLAVAK DLREKNWKHQ AAANADFVAV
GDFTFYDHIL DLQVATGAIP ARFGFDSQNL SLEQFFQLAR GNKDQFAIEM TKWFDTNYHY
LVPEFHADTE FKANAKHYVQ QLQEAQALGL KAKPTVVGPL TFLWVGKEKG TVEFNRLSLL
QKLLPVYVEI LNALVEAGAE WIQIDEPALT VDLPKEWVEA YKDVYATLSK VSAKILLSTY
FGSVAEHAAL LKSLPVDGLH IDLVRAPEQL DAFADYDKVL SAGIIDGRNI WRANLNKVLE
TVEPLQAKLG DRLWISSSCS LLHTPFDLSV EEKLKANKPD LYSWLAFTLQ KTQELRVLKA
ALNEGRDSVA EELAASQAAA DSRANSSEIH RADVAKRLAD LPANADQRKS PFADRIKAQQ
AWLNLPLLPT TNIGSFPQTT EIRQARAAFK KGELSAADYE AAMKKEIALV VEEQEKLDLD
VLVHGEAERN DMVEYFGELL SGFAFTQYGW VQSYGSRCVK PPIIFGDVSR PEAMTVAWST
YAQSLTKRPM KGMLTGPVTI LQWSFVRNDI PRSTVCKQIA LALNDEVLDL EKAGIKVIQI
DEPAIREGLP LKRADWDAYL NWAGESFRLS SAGCEDSTQI HTHMCYSEFN DILPAIAAMD
ADVITIETSR SDMELLTAFG EFKYPNDIGP GVYDIHSPRV PTEAEVEHLL RKAIEVVPVE
RLWVNPDCGL KTRGWKETLE QLQVMMNVTH KLRAELAK
