ID   CHLI_NOSS1              Reviewed;         374 AA.
AC   P58571;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2002, sequence version 1.
DT   03-AUG-2022, entry version 106.
DE   RecName: Full=Magnesium-chelatase subunit ChlI;
DE            EC=6.6.1.1;
DE   AltName: Full=Mg-protoporphyrin IX chelatase;
GN   Name=chlI; OrderedLocusNames=all0152;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- FUNCTION: Involved in chlorophyll biosynthesis; introduces a magnesium
CC       ion into protoporphyrin IX to yield Mg-protoporphyrin 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; chlorophyll
CC       biosynthesis.
CC   -!- SIMILARITY: Belongs to the Mg-chelatase subunits D/I family.
CC       {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; BA000019; BAB77676.1; -; Genomic_DNA.
DR   PIR; AH1825; AH1825.
DR   RefSeq; WP_010994329.1; NZ_RSCN01000016.1.
DR   AlphaFoldDB; P58571; -.
DR   SMR; P58571; -.
DR   STRING; 103690.17135130; -.
DR   EnsemblBacteria; BAB77676; BAB77676; BAB77676.
DR   KEGG; ana:all0152; -.
DR   eggNOG; COG1239; Bacteria.
DR   OMA; RISAVCG; -.
DR   OrthoDB; 895310at2; -.
DR   UniPathway; UPA00668; -.
DR   Proteomes; UP000002483; 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:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.300; -; 1.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR045006; CHLI-like.
DR   InterPro; IPR041628; ChlI/MoxR_AAA_lid.
DR   InterPro; IPR011775; Mg_chelatase_ATPase-isu.
DR   InterPro; IPR000523; Mg_chelatse_chII-like_cat_dom.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR32039; PTHR32039; 1.
DR   Pfam; PF17863; AAA_lid_2; 1.
DR   Pfam; PF01078; Mg_chelatase; 1.
DR   SMART; SM00382; AAA; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR02030; BchI-ChlI; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Chlorophyll biosynthesis; Ligase; Nucleotide-binding;
KW   Photosynthesis; Reference proteome.
FT   CHAIN           1..374
FT                   /note="Magnesium-chelatase subunit ChlI"
FT                   /id="PRO_0000206861"
FT   BINDING         47..54
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   374 AA;  41245 MW;  2D3856F3EAC904F3 CRC64;
     MTPTAQTTAS ARRVVFPFTA IVGQEEMKLA LLLNVIDPKI GGVMIMGDRG TGKSTTIRAL
     ADLLPEIPVV ANDPFNSDPS DPDLMSDEVR QKSGTGAEIP IEFKKVQMVD LPLGATEDRV
     CGTIDIEKAL SEGVKAFEPG LLAKANRGIL YVDEVNLLDD HLVDVLLDSA ASGWNTVERE
     GISIRHPARF VLVGSGNPEE GELRPQLLDR FGMHAEIHTV KEPALRVQIV EQRSEFDQNP
     PTFLEKYNPE QTALQKKIVE AQKLLPEVKL DYDLRVKISE VCSELDVDGL RGDIVTNRAA
     KALTAYEGRT EVTVDDIRRV ITLCLRHRLR KDPLESIDSG YKVEKVFARI FGVELLEDDS
     SQKNGAGQIK TGVR