METE_BRADU
ID METE_BRADU Reviewed; 781 AA.
AC Q9AMV8; Q89TE1;
DT 23-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT 23-APR-2003, sequence version 2.
DT 03-AUG-2022, entry version 113.
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=blr2068;
GN ORFNames=id830;
OS Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 /
OS NBRC 14792 / USDA 110).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Bradyrhizobiaceae; Bradyrhizobium.
OX NCBI_TaxID=224911;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=USDA 110spc4;
RX PubMed=11157954; DOI=10.1128/jb.183.4.1405-1412.2001;
RA Goettfert M., Roethlisberger S., Kuendig C., Beck C., Marty R.,
RA Hennecke H.;
RT "Potential symbiosis-specific genes uncovered by sequencing a 410-kb DNA
RT region of the Bradyrhizobium japonicum chromosome.";
RL J. Bacteriol. 183:1405-1412(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110;
RX PubMed=12597275; DOI=10.1093/dnares/9.6.189;
RA Kaneko T., Nakamura Y., Sato S., Minamisawa K., Uchiumi T., Sasamoto S.,
RA Watanabe A., Idesawa K., Iriguchi M., Kawashima K., Kohara M.,
RA Matsumoto M., Shimpo S., Tsuruoka H., Wada T., Yamada M., Tabata S.;
RT "Complete genomic sequence of nitrogen-fixing symbiotic bacterium
RT Bradyrhizobium japonicum USDA110.";
RL DNA Res. 9:189-197(2002).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAG61038.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AF322013; AAG61038.1; ALT_INIT; Genomic_DNA.
DR EMBL; BA000040; BAC47333.1; -; Genomic_DNA.
DR RefSeq; NP_768708.1; NC_004463.1.
DR RefSeq; WP_011084864.1; NZ_CP011360.1.
DR AlphaFoldDB; Q9AMV8; -.
DR SMR; Q9AMV8; -.
DR STRING; 224911.27350322; -.
DR PRIDE; Q9AMV8; -.
DR EnsemblBacteria; BAC47333; BAC47333; BAC47333.
DR GeneID; 64067290; -.
DR KEGG; bja:blr2068; -.
DR PATRIC; fig|224911.44.peg.1573; -.
DR eggNOG; COG0620; Bacteria.
DR HOGENOM; CLU_013175_0_0_5; -.
DR InParanoid; Q9AMV8; -.
DR OMA; KVMKGML; -.
DR PhylomeDB; Q9AMV8; -.
DR UniPathway; UPA00051; UER00082.
DR Proteomes; UP000002526; 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..781
FT /note="5-methyltetrahydropteroyltriglutamate--homocysteine
FT methyltransferase"
FT /id="PRO_0000098618"
FT ACT_SITE 716
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 20..23
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 131
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 453..455
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 453..455
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 506
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 506
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 537..538
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 583
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 621
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 621
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 627
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 663
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 665
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 687
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
FT BINDING 748
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00172"
SQ SEQUENCE 781 AA; 87402 MW; 496DE1A22509E8E8 CRC64;
MSPLSLPVAT LGTPRIGPRR ELKLALESYW AGKISEQQLH EDAFGLRAAN WARQKSLGVT
IIPSNDFSLY DQVLDTSVMV GAIPEIYAAN GESVSLQTYF AMARGSQCGE QDASCAQSPR
GSGVPAQEMT KWFDTNYHYM VPEFYRGQAF RLCSRKPVEE YEEARALGFQ TRPVLIGPVT
FLKLGKSTDS AFQPLSLLDD LIPVYIDLLH ELAKRGASWV QFDEPCLVLD LDEAARNSLL
HAYNRFAKEG PAIKIMLASY FGALGDNLDT ALSLPISGLH VDLVRAPELL DQIVADGRSD
LVMSLGVIDG RNVWRSNLPS LRQRLKPSIA KLGRHRVQLA PSCSLLHVPV DVELETGLAS
DVKSWLAFSV QKMRELAILA RVLAGDQNVG LALAESECAA TARRTSPKIH NANVAVRMRA
IDQTMRQRAT PFARRSEIQR ERFGLPAFPT TTIGSFPQTT AVRNARAAHA RGAMSEEQYD
RFLKEEIARA VRWQEDIGLD VLVHGEFERN DMVQYFSEQL AGFAFTRNGW VQSYGSRCVR
PPILFGDVVR PKPITVEWWR YAQSLTSKPM KAMLTGPVTI LNWSFVRDDI PRSEVCRQLA
LAMRDEVRDL ENAGAAMIQI DEAALREGLP LRRSDWKAYL DWAGDCFRIC SSGVTDQTQI
HTHMCYSEFN DIIGAIAAMD ADVISIETSR SKMELLDAFR RYEYPNQIGP GVYDIHSPRV
PETDEMKELI VLARTRLQDS QLWVNPDCGL KTRKWEEVRP ALANMVAAAR ELRAASDPQI
R
