ID C6H889_AJECH Unreviewed; 763 AA.
AC C6H889;
DT 01-SEP-2009, integrated into UniProtKB/TrEMBL.
DT 01-SEP-2009, sequence version 1.
DT 08-NOV-2023, entry version 51.
DE RecName: Full=5-methyltetrahydropteroyltriglutamate--homocysteine S-methyltransferase {ECO:0000256|ARBA:ARBA00012034};
DE EC=2.1.1.14 {ECO:0000256|ARBA:ARBA00012034};
GN ORFNames=HCDG_01650 {ECO:0000313|EMBL:EER43620.1};
OS Ajellomyces capsulatus (strain H143) (Darling's disease fungus)
OS (Histoplasma capsulatum).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Ajellomycetaceae; Histoplasma.
OX NCBI_TaxID=544712 {ECO:0000313|EMBL:EER43620.1, ECO:0000313|Proteomes:UP000002624};
RN [1] {ECO:0000313|Proteomes:UP000002624}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=H143 {ECO:0000313|Proteomes:UP000002624};
RA Champion M., Cuomo C.A., Ma L.-J., Henn M.R., Sil A., Goldman B.,
RA Young S.K., Kodira C.D., Zeng Q., Koehrsen M., Alvarado L., Berlin A.M.,
RA Borenstein D., Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J.,
RA Griggs A., Gujja S., Heiman D.I., Hepburn T.A., Howarth C., Jen D.,
RA Larson L., Lewis B., Mehta T., Park D., Pearson M., Roberts A., Saif S.,
RA Shea T.D., Shenoy N., Sisk P., Stolte C., Sykes S., Walk T., White J.,
RA Yandava C., Klein B., McEwen J.G., Puccia R., Goldman G.H., Felipe M.S.,
RA Nino-Vega G., San-Blas G., Taylor J.W., Mendoza L., Galagan J.E.,
RA Nusbaum C., Birren B.W.;
RT "The genome sequence of Ajellomyces capsulatus strain H143.";
RL Submitted (MAY-2009) 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:0000256|ARBA:ARBA00002777}.
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|PIRSR:PIRSR000382-2};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000256|PIRSR:PIRSR000382-
CC 2};
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:0000256|ARBA:ARBA00004681}.
CC -!- SIMILARITY: Belongs to the vitamin-B12 independent methionine synthase
CC family. {ECO:0000256|ARBA:ARBA00009553}.
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DR EMBL; GG692420; EER43620.1; -; Genomic_DNA.
DR AlphaFoldDB; C6H889; -.
DR STRING; 544712.C6H889; -.
DR VEuPathDB; FungiDB:HCDG_01650; -.
DR eggNOG; KOG2263; Eukaryota.
DR HOGENOM; CLU_013175_0_0_1; -.
DR OMA; KVMKGML; -.
DR UniPathway; UPA00051; UER00082.
DR Proteomes; UP000002624; Unassembled WGS sequence.
DR GO; GO:0003871; F:5-methyltetrahydropteroyltriglutamate-homocysteine S-methyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
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 PANTHER; PTHR30519; 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE--HOMOCYSTEINE METHYLTRANSFERASE; 1.
DR PANTHER; PTHR30519:SF0; 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 {ECO:0000256|ARBA:ARBA00022605};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRSR:PIRSR000382-2};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603,
KW ECO:0000313|EMBL:EER43620.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000002624};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000313|EMBL:EER43620.1};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|PIRSR:PIRSR000382-2}.
FT DOMAIN 1..314
FT /note="Cobalamin-independent methionine synthase MetE N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF08267"
FT DOMAIN 432..755
FT /note="Cobalamin-independent methionine synthase MetE C-
FT terminal/archaeal"
FT /evidence="ECO:0000259|Pfam:PF01717"
FT REGION 384..420
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 392..407
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 701
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-3"
FT BINDING 8
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 115
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 437..439
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 437..439
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 490
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 521..522
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 567
FT /ligand="5-methyltetrahydropteroyltri-L-glutamate"
FT /ligand_id="ChEBI:CHEBI:58207"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 605
FT /ligand="L-homocysteine"
FT /ligand_id="ChEBI:CHEBI:58199"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 605
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-1"
FT BINDING 648
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-2"
FT BINDING 650
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-2"
FT BINDING 659
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-2"
FT BINDING 672
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-2"
FT BINDING 733
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR000382-2"
SQ SEQUENCE 763 AA; 85945 MW; C378CEADC4832BC6 CRC64;
MGRLRDLKKA TEAYWGGKLS RDQLLDEGKR LRLEHWQIQK KAGVDLIPSN DFALYDQVLD
HIQLFGVIPE RYSKYDLHPV DEYFAMGRGL QRPAKDGEPA VDVPSLEMVK WFDSNYHYVK
PTLQDSQTFT LSSNPKPVVE FKEAKDAGIT TRPVLLGPVS FLALAKADRD QTIDPISVVD
KLVPLYIDLL AQLKAAGAED VQIDEPVLVF DLPEKTKAAF KPTYEKLGSL GDKAPRLVLA
TYFGDIVHNI DVLPSLQSLH GIHVDLVRNP EQLDTVINAL GPKQTLSAGV VDGRNIWKTN
FKRAIEIVET AIQKLGKDRV VVATSSSLLH TPHTLESEKN LDPEVRDWFS FAVEKATEVV
IIAKAVTEGP AAVREELEAN AKSVQARASS KRTNDPKVKE RQAAVTPEMH NRKSPFPTRI
SQQQTKLNLP MFPTTTIGSF PQTKDIRIQR NKFTKGEITA ADYEKFIEQE IQDVVKIQEE
LDLDVFVHGE PERNDMVQYF GERLTGYVFT THAWVQSYGS RCVRPPIIVG DISRPAPMTV
KESKYAASIS KKPMKGMLTG PITCLRWSFP RDDVHQSVQA QQLALALRDE VVDLEAAGIF
VIQVDEPALR EGLPLRSGKE REAYLDWAVK AFRLATSGVE DSTQIHSHFC YSEFQDFFHA
IAALDADVLS IENSKSDAKL LKVFVDEAYP RHIGPGVYDI HSPRVPSEQE IKSRIEEMLH
YLRPDQLWID PDCGLKTRQW TETKAALTNM VNAAKFFRQK YAK
//
