ID   METE_SULIK              Reviewed;         332 AA.
AC   C4KID3;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 55.
DE   RecName: Full=Methionine synthase {ECO:0000255|HAMAP-Rule:MF_00288};
DE            EC=2.1.1.- {ECO:0000255|HAMAP-Rule:MF_00288};
DE   AltName: Full=Homocysteine methyltransferase {ECO:0000255|HAMAP-Rule:MF_00288};
GN   Name=metE {ECO:0000255|HAMAP-Rule:MF_00288}; OrderedLocusNames=M164_1743;
OS   Sulfolobus islandicus (strain M.16.4 / Kamchatka #3).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfolobus.
OX   NCBI_TaxID=426118;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M.16.4 / Kamchatka #3;
RX   PubMed=19435847; DOI=10.1073/pnas.0808945106;
RA   Reno M.L., Held N.L., Fields C.J., Burke P.V., Whitaker R.J.;
RT   "Biogeography of the Sulfolobus islandicus pan-genome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 106:8605-8610(2009).
CC   -!- FUNCTION: Catalyzes the transfer of a methyl group to L-homocysteine
CC       resulting in methionine formation. The physiological methyl donor is
CC       unknown. {ECO:0000255|HAMAP-Rule:MF_00288}.
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00288};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00288};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC       pathway. {ECO:0000255|HAMAP-Rule:MF_00288}.
CC   -!- SIMILARITY: Belongs to the archaeal MetE family. {ECO:0000255|HAMAP-
CC       Rule:MF_00288, ECO:0000305}.
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DR   EMBL; CP001402; ACR42347.1; -; Genomic_DNA.
DR   RefSeq; WP_012711676.1; NC_012726.1.
DR   AlphaFoldDB; C4KID3; -.
DR   SMR; C4KID3; -.
DR   EnsemblBacteria; ACR42347; ACR42347; M164_1743.
DR   GeneID; 7812476; -.
DR   GeneID; 7940210; -.
DR   GeneID; 8761787; -.
DR   KEGG; sid:M164_1743; -.
DR   HOGENOM; CLU_040013_3_2_2; -.
DR   OMA; DPDCGMR; -.
DR   UniPathway; UPA00051; -.
DR   Proteomes; UP000001479; Chromosome.
DR   GO; GO:0003871; F:5-methyltetrahydropteroyltriglutamate-homocysteine S-methyltransferase activity; IEA:InterPro.
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; -; 1.
DR   HAMAP; MF_00288; MetE; 1.
DR   InterPro; IPR002629; Met_Synth_C/arc.
DR   InterPro; IPR022921; MetE_arc.
DR   InterPro; IPR038071; UROD/MetE-like_sf.
DR   Pfam; PF01717; Meth_synt_2; 1.
DR   SUPFAM; SSF51726; SSF51726; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Metal-binding; Methionine biosynthesis;
KW   Methyltransferase; Transferase; Zinc.
FT   CHAIN           1..332
FT                   /note="Methionine synthase"
FT                   /id="PRO_1000204854"
FT   BINDING         211
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00288"
FT   BINDING         213
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00288"
FT   BINDING         296
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00288"
SQ   SEQUENCE   332 AA;  38258 MW;  E1FBBFC249BFF2C1 CRC64;
     MSKLPLLPTT VIGSYPRPKW LRESIRLHKA GKISDEDLQE AFNDAVIAVL KDHYNAGVDV
     PTDGEVRRDE MVEFFAERIK GFKFYGPVRV WGTAYYRKPS VVSKIEYKKP MLVDEFTFAK
     SVSYTDNLKI TITGPYTIAE WSYNEYYKNK KDLVFDLAKA INQEIKNLVE AGAKIIQIDE
     PALHTRREDV SWGVEAVNEA VKGVNAKLVM HICYGEYSFV APYLNELKVD QINFAFKIYN
     YKPLELLKRY GFDKELGAGV IDVHNRRIET SEEVANDIRK ILEYFTPEKV WINPDCGLKL
     LSRKIAYQKL VSMVEGTKVV REELKRKGYS VD