ID A0A067E5Q9_CITSI Unreviewed; 603 AA.
AC A0A067E5Q9;
DT 03-SEP-2014, integrated into UniProtKB/TrEMBL.
DT 03-SEP-2014, sequence version 1.
DT 08-NOV-2023, entry version 28.
DE RecName: Full=Mg-protoporphyrin IX chelatase {ECO:0000256|RuleBase:RU362087};
DE EC=6.6.1.1 {ECO:0000256|RuleBase:RU362087};
GN ORFNames=CISIN_1g004256mg {ECO:0000313|EMBL:KDO50423.1};
OS Citrus sinensis (Sweet orange) (Citrus aurantium var. sinensis).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Sapindales; Rutaceae; Aurantioideae; Citrus.
OX NCBI_TaxID=2711 {ECO:0000313|EMBL:KDO50423.1, ECO:0000313|Proteomes:UP000027120};
RN [1] {ECO:0000313|EMBL:KDO50423.1, ECO:0000313|Proteomes:UP000027120}
RP NUCLEOTIDE SEQUENCE.
RG International Citrus Genome Consortium;
RA Gmitter F., Chen C., Farmerie W., Harkins T., Desany B., Mohiuddin M.,
RA Kodira C., Borodovsky M., Lomsadze A., Burns P., Jenkins J., Prochnik S.,
RA Shu S., Chapman J., Pitluck S., Schmutz J., Rokhsar D.;
RL Submitted (APR-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Involved in chlorophyll biosynthesis. Catalyzes the insertion
CC of magnesium ion into protoporphyrin IX to yield Mg-protoporphyrin IX.
CC {ECO:0000256|RuleBase:RU362087}.
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 ECO:0000256|RuleBase:RU362087};
CC -!- ACTIVITY REGULATION: Redox regulation; active in reducing conditions,
CC inactive in oxidizing conditions. {ECO:0000256|RuleBase:RU362087}.
CC -!- PATHWAY: Porphyrin-containing compound metabolism; chlorophyll
CC biosynthesis. {ECO:0000256|ARBA:ARBA00005173,
CC ECO:0000256|RuleBase:RU362087}.
CC -!- SUBUNIT: The magnesium chelatase complex is a heterotrimer consisting
CC of subunits CHLI, CHLD, AND CHLH. {ECO:0000256|RuleBase:RU362087}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast
CC {ECO:0000256|RuleBase:RU362087}.
CC -!- SIMILARITY: Belongs to the Mg-chelatase subunits D/I family.
CC {ECO:0000256|ARBA:ARBA00005799, ECO:0000256|RuleBase:RU362087}.
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; KK785080; KDO50423.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A067E5Q9; -.
DR UniPathway; UPA00668; -.
DR Proteomes; UP000027120; Unassembled WGS sequence.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR GO; GO:0016851; F:magnesium chelatase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR CDD; cd00009; AAA; 1.
DR Gene3D; 1.10.8.80; Magnesium chelatase subunit I, C-Terminal domain; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR041628; ChlI/MoxR_AAA_lid.
DR InterPro; IPR011776; Mg_chelatase_ATPase-dsu.
DR InterPro; IPR000523; Mg_chelatse_chII-like_cat_dom.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR02031; BchD-ChlD; 1.
DR PANTHER; PTHR43473; MAGNESIUM-CHELATASE SUBUNIT CHLD, CHLOROPLASTIC; 1.
DR PANTHER; PTHR43473:SF2; MAGNESIUM-CHELATASE SUBUNIT CHLD, CHLOROPLASTIC; 1.
DR Pfam; PF17863; AAA_lid_2; 1.
DR Pfam; PF01078; Mg_chelatase; 1.
DR SMART; SM00382; AAA; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|RuleBase:RU362087};
KW Chlorophyll biosynthesis {ECO:0000256|RuleBase:RU362087};
KW Chloroplast {ECO:0000256|RuleBase:RU362087};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|RuleBase:RU362087};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU362087};
KW Photosynthesis {ECO:0000256|RuleBase:RU362087};
KW Plastid {ECO:0000256|RuleBase:RU362087};
KW Reference proteome {ECO:0000313|Proteomes:UP000027120};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 560..580
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 115..296
FT /note="AAA+ ATPase"
FT /evidence="ECO:0000259|SMART:SM00382"
FT REGION 412..456
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 416..430
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 433..456
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 603 AA; 66876 MW; 00FE597A284FC02B CRC64;
MAFSSTITTT VSSAASTSLS HLQQSCSVVS SLKLHPLLFS YSPPPFFKFR TRPKHHRFFH
VRASSSNATL DSANGAVAAA SEDQDSYGRQ FFPLAAVVGQ DAIKTALLLG AIDREIGGIA
ISGRRGTAKT VMARGLHAIL PPIEVVVGSI ANADPTCPDE WEDGLDEKAE YDTAGNLKTQ
IARSPFVQIP LGVTEDRLIG SVDVEESVKT GTTVFQPGLL AEAHRGVLYI DEINLLDEGI
SNLLLNVLTE GVNIVEREGI SFKHPCKPLL IATYNPEEGV VREHLLDRIA INLSADLPMT
FEDRVAAVGI ATQFQERSNE VFKMVEEETD LAKTQIILAR EYLKDVAIGR EQLKYLVMEA
LRGGCQGHRA ELYAARVAKC LAALEGREKV NVDDLKKAVE LVILPRSIIN ETPPEQQNQQ
PPPPPPPQNQ DSGEEEQNEE EDQEDENDEE NEQQQEQLPE EFIFDAEGGL VDEKLLFFAQ
QAQRRRGKAG RAKNVIFSED RGRYIKPMLP KGPIKRLAVD ATLRAAAPYQ KLRRERDTQK
TRKVFVEKTD MRAKRMARKA GALVGLMFSV LILQLILLPF QEEKGKRMKL IFPQKPSCIF
YSG
//
