METE_THEYD
ID METE_THEYD Reviewed; 745 AA.
AC B5YJD3;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 1.
DT 03-AUG-2022, entry version 76.
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=THEYE_A0504;
OS Thermodesulfovibrio yellowstonii (strain ATCC 51303 / DSM 11347 / YP87).
OC Bacteria; Nitrospirae; Thermodesulfovibrionia; Thermodesulfovibrionales;
OC Thermodesulfovibrionaceae; Thermodesulfovibrio.
OX NCBI_TaxID=289376;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51303 / DSM 11347 / YP87;
RA Dodson R.J., Durkin A.S., Wu M., Eisen J., Sutton G.;
RT "The complete genome sequence of Thermodesulfovibrio yellowstonii strain
RT ATCC 51303 / DSM 11347 / YP87.";
RL Submitted (AUG-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001147; ACI21086.1; -; Genomic_DNA.
DR RefSeq; WP_012545812.1; NC_011296.1.
DR RefSeq; YP_002248348.1; NC_011296.1.
DR AlphaFoldDB; B5YJD3; -.
DR SMR; B5YJD3; -.
DR STRING; 289376.THEYE_A0504; -.
DR EnsemblBacteria; ACI21086; ACI21086; THEYE_A0504.
DR KEGG; tye:THEYE_A0504; -.
DR PATRIC; fig|289376.4.peg.499; -.
DR eggNOG; COG0620; Bacteria.
DR HOGENOM; CLU_013175_0_0_0; -.
DR InParanoid; B5YJD3; -.
DR OMA; KVMKGML; -.
DR OrthoDB; 577156at2; -.
DR UniPathway; UPA00051; UER00082.
DR Proteomes; UP000000718; 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; Reference proteome; Repeat; Transferase; Zinc.
FT CHAIN 1..745
FT /note="5-methyltetrahydropteroyltriglutamate--homocysteine
FT methyltransferase"
FT /id="PRO_1000097850"
FT ACT_SITE 684
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 17..20
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 111
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 421..423
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 421..423
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 474
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 474
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 505..506
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 551
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 589
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 589
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 595
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 631
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 633
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 655
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 716
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
SQ SEQUENCE 745 AA; 85984 MW; C4C8F5367B4EF5BD CRC64;
MKIKTTVFGY PRIGPKRELK KALEDYWNWK ISKVELLETA NSLIIQNAKV IQSSGVDLIP
SNEFSLYDFI LDHSVMFNAV PKRFNRISDP LDRYFAMARG TQELPALEMT KWFNTNYHYI
VPEIEDEEFE LMENKPLREF ALLRDSLSVK TKPVIVGPFT YLKSAKLNMD RVERLSEKIL
PAYKKLLIKL DAAGVEEIQI DEPAMVMDME EREIELLTGL YRELTKGLTL KVYIQTYYEA
VSAYEKLVFS LSVHGFGFDL VDGKENLENI LTLGFPSDKV LIAGVVSGRD PWRTDFTVVM
SMLERLFRVT DKIMLSNSSP LIHLPITVEA ERGHIQEDIL NMLSFANERL EELTILKRAI
NDGAALPARK SIVHEIFSKA EVRSKISSID EKAILRKPEF QERYRMQMDS LKLPLFPTTT
IGSFPQTKEV RKFRADYKNG KITEEEYKKF IFQEIEKAVK IQEELDIDVL VHGEFERTDM
VEFFAEKLKG FAITKNGWVQ SYGSRCVRPP VIYGDVWRDK ALTVEETLYA QSLTPRPVKG
IMTGAVTILQ WSYPRKDISR REIAYQIALA LKEEVLELEK RGIKIIQIDE PAFREGLPLK
RNKQDEYFDW TINSFRLTTA DVSPFTQIHT HMCYSDFNEI IDRIYALDAD VISIEASRSK
GEILSAFENF RYDHGIGLGV YDIHSPRVPS VEEMIEIIER SVSLIDKSLF WINPDCGLKT
RGWQETVASL KNMVLAAKAM RKREV
