ID   Q8KZ57_9PROT            Unreviewed;      1245 AA.
AC   Q8KZ57;
DT   01-OCT-2002, integrated into UniProtKB/TrEMBL.
DT   01-OCT-2002, sequence version 1.
DT   13-SEP-2023, entry version 34.
DE   RecName: Full=magnesium chelatase {ECO:0000256|ARBA:ARBA00012825};
DE            EC=6.6.1.1 {ECO:0000256|ARBA:ARBA00012825};
GN   Name=bchH {ECO:0000313|EMBL:AAM48616.1};
GN   ORFNames=MBMO_EBAC000-29C02.22 {ECO:0000313|EMBL:AAM48616.1};
OS   uncultured marine proteobacterium.
OC   Bacteria; Pseudomonadota; environmental samples.
OX   NCBI_TaxID=482892 {ECO:0000313|EMBL:AAM48616.1};
RN   [1] {ECO:0000313|EMBL:AAM48616.1}
RP   NUCLEOTIDE SEQUENCE.
RX   PubMed=11832943; DOI=10.1038/415630a;
RA   Beja O., Suzuki M.T., Heidelberg J.F., Nelson W.C., Preston C.M.,
RA   Hamada T., Eisen J.A., Fraser C.M., DeLong E.F.;
RT   "Unsuspected diversity among marine aerobic anoxygenic phototrophs.";
RL   Nature 415:630-633(2002).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + Mg(2+) + protoporphyrin IX = ADP + 3 H(+) + Mg-
CC         protoporphyrin IX + phosphate; Xref=Rhea:RHEA:13961,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:18420,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:57306,
CC         ChEBI:CHEBI:60492, ChEBI:CHEBI:456216; EC=6.6.1.1;
CC         Evidence={ECO:0000256|ARBA:ARBA00001499};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism.
CC       {ECO:0000256|ARBA:ARBA00023444}.
CC   -!- SIMILARITY: Belongs to the Mg-chelatase subunit H family.
CC       {ECO:0000256|ARBA:ARBA00010851}.
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DR   EMBL; AE008920; AAM48616.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8KZ57; -.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016851; F:magnesium chelatase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR   GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   CDD; cd10150; CobN_like; 1.
DR   InterPro; IPR011771; BchH.
DR   InterPro; IPR003672; CobN/Mg_chltase.
DR   InterPro; IPR022571; Mg_chelatase_H_N.
DR   NCBIfam; TIGR02025; BchH; 1.
DR   PANTHER; PTHR44119; MAGNESIUM-CHELATASE SUBUNIT CHLH, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR44119:SF1; MAGNESIUM-CHELATASE SUBUNIT CHLH, CHLOROPLASTIC; 1.
DR   Pfam; PF02514; CobN-Mg_chel; 1.
DR   Pfam; PF11965; DUF3479; 1.
PE   3: Inferred from homology;
KW   ATP-binding {ECO:0000256|ARBA:ARBA00022840};
KW   Chlorophyll biosynthesis {ECO:0000256|ARBA:ARBA00023171};
KW   Ligase {ECO:0000256|ARBA:ARBA00022598};
KW   Methyltransferase {ECO:0000313|EMBL:AAM48616.1};
KW   Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW   Photosynthesis {ECO:0000256|ARBA:ARBA00022531};
KW   Transferase {ECO:0000313|EMBL:AAM48616.1}.
FT   DOMAIN          17..177
FT                   /note="Magnesium chelatase subunit H N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF11965"
SQ   SEQUENCE   1245 AA;  136679 MW;  31AAC4DF94EDFDE1 CRC64;
     MTQKHITATD DSTPISVVLV TLDNHVNGAI ARAEKRLIHD LPGIHFSSFA ATEWDGDPQS
     LADCHSAIAQ GDIVIVTMLF MEAHIKAVSD ALAARRDHCD AMICCMSGPE IMQLTRMGRF
     TMDGEPSGPM ALLKRLRGAP KDGKPGASGE RQLAMLRRLP RILRFIPGTA QDVRAYFLTL
     QYWLAGSEDN LARMVNFLVH RYAAGPREVL RKVAREEPPI EYPDVGVYQL EGRHRIVDSV
     EAMTTQAGET SGTVGLLLMR SYALAGNTRH YDAVIRAFEA RGLRVIPAFA AGLDARPAVK
     RFFMDGKTPI VDAVVSLTGF SLVGGPAYND TDAAQEILSE LNVPYLAVQA LEFQSINQWR
     ESPMGLMPVE ATIMVAIPEL DGAIGPMVFS GRDQEDLKRS FDMSPETERI DRLADRVRKL
     VTLRRRSRSE RKIGITLFNF PPNSGATGTA AHLNVFESLL NTLNALAKSG YQVDVPENVD
     ALRDALLKGN SQQYGAEANV FGTISVDDHV AREPYLEEIE AQWGPAPGKH WTDGRQLFVL
     GQTFGNVFVG IQPAMGYEGD PMRLLFEGGL APTHSFSAYY RWLREDYEAD AVLHFGTHGA
     LEFMPGKQVG LSNKCWPDRL IADLPNFYLY AANNPSEGLI AKRRSAATLI SYLTPPVTKA
     DLHKEFAELR AMIDRWRTRD PAAHDEQLRL LIDAIAGHAE RCELSHGGAP DVLSDAERWV
     GVLRTQLDEI ETSLIPFGMH VVGTPMLSSE RAETISAIAA AGGALGIDEI RLDAALESGD
     TPALQGLLAE FDVPRDEIDA LTQRLLETFE SLAKEYELPA LISALDGHFI SPVSGGDLIR
     NPESLPTGRN IHGFDPFRLP SAFAVIEGQR QASQLTDRHF ADTGSLPTSV ALVLWGTDNL
     KSEGVAIGQA LALIGAKPRF DSYGRLSGAE LISLEELGRA RVDVIVTLSG IFRDLLPLQT
     QLLAEAAYLA ADADEPLELN PIRRNVLEYQ RTHNCDLDTA SLRVFSNSEG AYGSNVNMLV
     DSGRWDNESE FADTYTNRKG FAYGRNGQVS QQTELLNDVL GHVDLAYQNL DSVELGITTV
     DHYFDTLGGI SSAVQRAKGD SVPVYIADHT GSGDGKVRTL DEQVALETRT RLLNPKWYES
     MLDHGYEGVR QIEAHLTNTM GWSATAGGVA PWVYKQVSET FILDEDMRRR LAELNPVAAS
     RVANRLIEAQ ERDYWGADEE QLEALRRAGE DLEDLLEGIT GEVAA
//