ID   BCHH_RHOCB              Reviewed;        1189 AA.
AC   P26162; D5ANS4;
DT   01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT   28-JUN-2011, sequence version 2.
DT   25-MAY-2022, entry version 103.
DE   RecName: Full=Magnesium-chelatase subunit H;
DE            EC=6.6.1.1;
DE   AltName: Full=Mg-protoporphyrin IX chelatase subunit H;
GN   Name=bchH; OrderedLocusNames=RCAP_rcc00663;
OS   Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Rhodobacter.
OX   NCBI_TaxID=272942;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003;
RX   PubMed=8385667; DOI=10.1128/jb.175.8.2414-2422.1993;
RA   Burke D.H., Alberti M., Hearst J.E.;
RT   "bchFNBH bacteriochlorophyll synthesis genes of Rhodobacter capsulatus and
RT   identification of the third subunit of light-independent
RT   protochlorophyllide reductase in bacteria and plants.";
RL   J. Bacteriol. 175:2414-2422(1993).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003;
RX   PubMed=20418398; DOI=10.1128/jb.00366-10;
RA   Strnad H., Lapidus A., Paces J., Ulbrich P., Vlcek C., Paces V.,
RA   Haselkorn R.;
RT   "Complete genome sequence of the photosynthetic purple nonsulfur bacterium
RT   Rhodobacter capsulatus SB 1003.";
RL   J. Bacteriol. 192:3545-3546(2010).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1165-1189.
RC   STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003;
RX   PubMed=2203738; DOI=10.1128/jb.172.9.5001-5010.1990;
RA   Yang Z.M., Bauer C.E.;
RT   "Rhodobacter capsulatus genes involved in early steps of the
RT   bacteriochlorophyll biosynthetic pathway.";
RL   J. Bacteriol. 172:5001-5010(1990).
CC   -!- FUNCTION: Involved in bacteriochlorophyll pigment biosynthesis;
CC       introduces a magnesium ion into protoporphyrin IX to yield Mg-
CC       protoroporphyrin IX.
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   -!- PATHWAY: Porphyrin-containing compound metabolism; bacteriochlorophyll
CC       biosynthesis (light-independent).
CC   -!- SIMILARITY: Belongs to the Mg-chelatase subunit H family.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAA77524.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; Z11165; CAA77524.1; ALT_INIT; Genomic_DNA.
DR   EMBL; CP001312; ADE84428.1; -; Genomic_DNA.
DR   EMBL; M34843; AAA26097.1; -; Genomic_DNA.
DR   PIR; D49851; D49851.
DR   RefSeq; WP_013066407.1; NC_014034.1.
DR   AlphaFoldDB; P26162; -.
DR   SMR; P26162; -.
DR   IntAct; P26162; 1.
DR   MINT; P26162; -.
DR   STRING; 272942.RCAP_rcc00663; -.
DR   EnsemblBacteria; ADE84428; ADE84428; RCAP_rcc00663.
DR   GeneID; 31489609; -.
DR   KEGG; rcp:RCAP_rcc00663; -.
DR   eggNOG; COG1429; Bacteria.
DR   HOGENOM; CLU_002017_1_2_5; -.
DR   OMA; WPETIAC; -.
DR   OrthoDB; 8025at2; -.
DR   BRENDA; 6.6.1.1; 5381.
DR   UniPathway; UPA00671; -.
DR   Proteomes; UP000002361; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016851; F:magnesium chelatase activity; IEA:UniProtKB-EC.
DR   GO; GO:0036070; P:light-independent bacteriochlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   CDD; cd10150; CobN_like; 1.
DR   InterPro; IPR003672; CobN/Mg_chltase.
DR   InterPro; IPR022571; Mg_chelatase_H_N.
DR   PANTHER; PTHR44119; PTHR44119; 2.
DR   Pfam; PF02514; CobN-Mg_chel; 2.
DR   Pfam; PF11965; DUF3479; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Bacteriochlorophyll biosynthesis; Chlorophyll biosynthesis;
KW   Ligase; Nucleotide-binding; Photosynthesis; Reference proteome.
FT   CHAIN           1..1189
FT                   /note="Magnesium-chelatase subunit H"
FT                   /id="PRO_0000219885"
SQ   SEQUENCE   1189 AA;  128762 MW;  7B5C0699E48945E4 CRC64;
     MSGTMPLPPH RPGGYNVVII TLDQHAAGPA ARALPRLQHD FPDIHVSVHA AAEWSENPAK
     LAAAKAAVLG ANIVVANLLF IDEHLQAILP EMTAVRDNLD AFVGMVADPQ IVRLTKMGDL
     DMTKPASGPM ALLKKLRGKS EPGAGSAEKQ MSMLRTIPKM LKFIPGKAQD LRAWFLCMQY
     WLGGSEDNIE SMVRYLVGRY ADNRDWRGIK AAAPIDYPEV GLYHPDMPGR ITTDPAKLPQ
     PANPVATIGI LMLRSYILAK DTAHYDAVIR ELQAHGVAVL PAFAGGLDGR PAIEEFLHGK
     IDTLLSLSGF SLVGGPAYND SDAAVETLKA LDVPYVTAQP LEFQTLGQWR ASGGGLGPVE
     TTMLIALPEI DGATNPTVFA GRHDPAGCLT CARGCKPDPE AESHAMAPCP ERIETLVDKV
     VRMAKLRRSK VAERKVGIVL YGFPPNAGAA GTAAYLSVFE SLFNVMHAMK ASGYQMGELP
     ESVQELRDAV LCGPNTTHGQ PAQIAARIPA AEFVARTKWL KDIEAAWGST PGKHQTDGRD
     VFVLGRQFGN VFVGLQPVFG YEGDPMRLLF EKGFAPTHAF AAFYRWLRED FAADTLLHFG
     MHGALEFMPG KQAGMCESCW PDRLIGNLPN VYLYAANNPS EATLAKRRSN AVIVSHLTPP
     LAQSGLYKGL AEIKESLGRL RALPPDSPER EDLEALVREQ AKGVNMDASD LSTLWEKLLE
     TEGALITEGL HVVGRPMTAE ARAEMLALMP ENADRARADK LLQEEHEIAG LLHALDGRYV
     PPVPGGDLVR SPEILPTGRN IHAFDPFRMP TAFAIKDGAA QAARLLATHP TLPRSIALVL
     WGSDNIKSDG GPIGQALALM GARPRFDNYG RLAGAELIPL SELGRPRIDV VMTLSGIFRD
     LLPLQTKLLA EAAYLCASAE NEPLAQNFIR ANVLATMQDT GMDFETASLR VFSNAEGAYG
     SNVNTLVGSA GFGDEDELAD AYEARKSFAY GRDGKSTKQV NLLQNVLSKV DLAYQNLESV
     ELGVTTVDHY FDTLGGIARA TKRAQGGKET PVYIGDQTRG AGTVRTLQDQ IALETRARSL
     NPKFYEGLLK HGAEGVRQIE AQVTNTLGWS ATTGQVEPWV YQRLSETFVL DDEMRERLAS
     LNSAASSRMA QRLLEASDRN YWQPDPATLA ALQAAADELE DRMEGVAAE