ID F2LVY3_HIPMA Unreviewed; 806 AA.
AC F2LVY3;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 53.
DE RecName: Full=Methionine synthase {ECO:0000256|ARBA:ARBA00013998};
DE EC=2.1.1.13 {ECO:0000256|ARBA:ARBA00012032};
DE AltName: Full=5-methyltetrahydrofolate--homocysteine methyltransferase {ECO:0000256|ARBA:ARBA00031040};
GN OrderedLocusNames=Hipma_0948 {ECO:0000313|EMBL:AEA33917.1};
OS Hippea maritima (strain ATCC 700847 / DSM 10411 / MH2).
OC Bacteria; Campylobacterota; Desulfurellia; Desulfurellales; Hippeaceae;
OC Hippea.
OX NCBI_TaxID=760142 {ECO:0000313|EMBL:AEA33917.1, ECO:0000313|Proteomes:UP000008139};
RN [1] {ECO:0000313|EMBL:AEA33917.1, ECO:0000313|Proteomes:UP000008139}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700847 / DSM 10411 / MH2
RC {ECO:0000313|Proteomes:UP000008139};
RX PubMed=21886857;
RA Huntemann M., Lu M., Nolan M., Lapidus A., Lucas S., Hammon N.,
RA Deshpande S., Cheng J.F., Tapia R., Han C., Goodwin L., Pitluck S.,
RA Liolios K., Pagani I., Ivanova N., Ovchinikova G., Pati A., Chen A.,
RA Palaniappan K., Land M., Hauser L., Jeffries C.D., Detter J.C.,
RA Brambilla E.M., Rohde M., Spring S., Goker M., Woyke T., Bristow J.,
RA Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.,
RA Mavromatis K.;
RT "Complete genome sequence of the thermophilic sulfur-reducer Hippea
RT maritima type strain (MH(2)).";
RL Stand. Genomic Sci. 4:303-311(2011).
RN [2] {ECO:0000313|Proteomes:UP000008139}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700847 / DSM 10411 / MH2
RC {ECO:0000313|Proteomes:UP000008139};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Bruce D., Goodwin L., Pitluck S.,
RA Peters L., Kyrpides N., Mavromatis K., Pagani I., Ivanova N.,
RA Mikhailova N., Lu M., Detter J.C., Tapia R., Han C., Land M., Hauser L.,
RA Markowitz V., Cheng J.-F., Hugenholtz P., Woyke T., Wu D., Spring S.,
RA Schroeder M., Brambilla E., Klenk H.-P., Eisen J.A.;
RT "The complete genome of Hippea maritima DSM 10411.";
RL Submitted (MAR-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the transfer of a methyl group from methyl-
CC cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and
CC methionine. Subsequently, remethylates the cofactor using
CC methyltetrahydrofolate. {ECO:0000256|ARBA:ARBA00025552}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-5-methyl-5,6,7,8-tetrahydrofolate + L-homocysteine =
CC (6S)-5,6,7,8-tetrahydrofolate + L-methionine; Xref=Rhea:RHEA:11172,
CC ChEBI:CHEBI:18608, ChEBI:CHEBI:57453, ChEBI:CHEBI:57844,
CC ChEBI:CHEBI:58199; EC=2.1.1.13;
CC Evidence={ECO:0000256|ARBA:ARBA00001700};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|ARBA:ARBA00001947,
CC ECO:0000256|PROSITE-ProRule:PRU00333};
CC -!- COFACTOR:
CC Name=methylcob(III)alamin; Xref=ChEBI:CHEBI:28115;
CC Evidence={ECO:0000256|ARBA:ARBA00001956};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC pathway; L-methionine from L-homocysteine (MetH route): step 1/1.
CC {ECO:0000256|ARBA:ARBA00005178}.
CC -!- SIMILARITY: Belongs to the vitamin-B12 dependent methionine synthase
CC family. {ECO:0000256|ARBA:ARBA00010398}.
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DR EMBL; CP002606; AEA33917.1; -; Genomic_DNA.
DR RefSeq; WP_013681958.1; NC_015318.1.
DR AlphaFoldDB; F2LVY3; -.
DR STRING; 760142.Hipma_0948; -.
DR KEGG; hmr:Hipma_0948; -.
DR eggNOG; COG0646; Bacteria.
DR eggNOG; COG1410; Bacteria.
DR HOGENOM; CLU_004914_0_2_7; -.
DR InParanoid; F2LVY3; -.
DR OrthoDB; 9803687at2; -.
DR UniPathway; UPA00051; UER00081.
DR Proteomes; UP000008139; Chromosome.
DR GO; GO:0031419; F:cobalamin binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008705; F:methionine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0042558; P:pteridine-containing compound metabolic process; IEA:InterPro.
DR CDD; cd02070; corrinoid_protein_B12-BD; 1.
DR Gene3D; 3.40.50.280; Cobalamin-binding domain; 1.
DR Gene3D; 3.20.20.20; Dihydropteroate synthase-like; 1.
DR Gene3D; 3.20.20.330; Homocysteine-binding-like domain; 1.
DR Gene3D; 1.10.1240.10; Methionine synthase domain; 1.
DR InterPro; IPR003759; Cbl-bd_cap.
DR InterPro; IPR006158; Cobalamin-bd.
DR InterPro; IPR036724; Cobalamin-bd_sf.
DR InterPro; IPR011005; Dihydropteroate_synth-like_sf.
DR InterPro; IPR003726; HCY_dom.
DR InterPro; IPR036589; HCY_dom_sf.
DR InterPro; IPR017215; MetH_bac.
DR InterPro; IPR036594; Meth_synthase_dom.
DR InterPro; IPR000489; Pterin-binding_dom.
DR PANTHER; PTHR45833; METHIONINE SYNTHASE; 1.
DR PANTHER; PTHR45833:SF1; METHIONINE SYNTHASE; 1.
DR Pfam; PF02310; B12-binding; 1.
DR Pfam; PF02607; B12-binding_2; 1.
DR Pfam; PF00809; Pterin_bind; 1.
DR Pfam; PF02574; S-methyl_trans; 1.
DR PIRSF; PIRSF037472; DHPS_mtfrase; 1.
DR SMART; SM01018; B12-binding_2; 1.
DR SUPFAM; SSF52242; Cobalamin (vitamin B12)-binding domain; 1.
DR SUPFAM; SSF51717; Dihydropteroate synthetase-like; 1.
DR SUPFAM; SSF82282; Homocysteine S-methyltransferase; 1.
DR SUPFAM; SSF47644; Methionine synthase domain; 1.
DR PROSITE; PS51332; B12_BINDING; 1.
DR PROSITE; PS51337; B12_BINDING_NTER; 1.
DR PROSITE; PS50970; HCY; 1.
DR PROSITE; PS50972; PTERIN_BINDING; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605};
KW Cobalamin {ECO:0000256|ARBA:ARBA00022628};
KW Cobalt {ECO:0000256|ARBA:ARBA00023285};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|PROSITE-
KW ProRule:PRU00333}; Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|PROSITE-
KW ProRule:PRU00333}; Reference proteome {ECO:0000313|Proteomes:UP000008139};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PROSITE-
KW ProRule:PRU00333};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|PROSITE-ProRule:PRU00333}.
FT DOMAIN 1..286
FT /note="Hcy-binding"
FT /evidence="ECO:0000259|PROSITE:PS50970"
FT DOMAIN 317..561
FT /note="Pterin-binding"
FT /evidence="ECO:0000259|PROSITE:PS50972"
FT DOMAIN 592..685
FT /note="B12-binding N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51337"
FT DOMAIN 687..806
FT /note="B12-binding"
FT /evidence="ECO:0000259|PROSITE:PS51332"
FT BINDING 207
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00333"
FT BINDING 271
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00333"
FT BINDING 272
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00333"
SQ SEQUENCE 806 AA; 88553 MW; 0DBC9A5840E32A31 CRC64;
MRNFREELGR KILILDGAMG TQLQEKGILK TGSCPDYLNV THPKEIGEIH KTYLDAGADI
IVTNTFGANP IKLEEFNLQD KVYQINYEAV RIAKEVVKDK GFVSLSIGPT GKFIEPVGEE
NFDYIKDIFK KQVRPAVDAD VDLFSLETFM DIKELKAAII AIREITDKPI IAMMTFAEDG
RTILGTSPEV FAKTIEPMEV DVIGANCSVG PDLLNEFVKK MAQVTDKPLI IQPNAGIPRL
VNGKTIFPVG AEEFASYAND FKEYAAIVAG CCGTGPEHIK LLAEKLKGKP VKKRTIQKAT
VLTSRSQMVE IGYSRPVVFI GERLNPTGKK HLKEQLKEGK TGLYRKEAIE QVEHGAMVLD
INVGVPMIDE PTTMKKCVLA VESVVSVPLV IDSSNIEALE AGLKAADGKV LINSVNGSQE
SMEAILPLAK KYGAAILALL LDETGIPETA EDRLKILDKI VKNAKELGIK EEDIVADALA
LTIGSDKKRA LETLRAIKLI KEKYGITTIL GLSNVSFGLP NRKLINSSFM AMAIYNGLDS
AIVNPYDELL WQIKYASDLI VDRDKDSSIY INNSSDITLK NKTTDNAKLE LIKSPFDKGT
LEDKLFMCVI EGNEEEIELL TKQALKNKEP LKISNEILIP ALDAVGKLYD KGIYFLPQMI
KSANAMKKAF NILKEIIKKK ATKQKTGKTI VMATVKGDIH DIGKNIVSLL LETNGFEVVD
LGKNVDDETI LKAIEEYHAD AVGLSALMTT TMINMKNVID EIKMKGLNVK IMVGGAAVTE
EFAKKIGADM YAKDAIEAVR LAKENV
//