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CHLI_CYACA
ID   CHLI_CYACA              Reviewed;         353 AA.
AC   Q9TLX7;
DT   11-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=Magnesium-chelatase subunit ChlI;
DE            EC=6.6.1.1;
DE   AltName: Full=Mg-protoporphyrin IX chelatase;
GN   Name=chlI;
OS   Cyanidium caldarium (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX   NCBI_TaxID=2771;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RK-1;
RX   PubMed=11040290; DOI=10.1007/s002390010101;
RA   Gloeckner G., Rosenthal A., Valentin K.-U.;
RT   "The structure and gene repertoire of an ancient red algal plastid
RT   genome.";
RL   J. Mol. Evol. 51:382-390(2000).
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   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the Mg-chelatase subunits D/I family.
CC       {ECO:0000305}.
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DR   EMBL; AF022186; AAF12953.1; -; Genomic_DNA.
DR   RefSeq; NP_045141.1; NC_001840.1.
DR   AlphaFoldDB; Q9TLX7; -.
DR   SMR; Q9TLX7; -.
DR   GeneID; 800136; -.
DR   UniPathway; UPA00668; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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; Chloroplast; Ligase;
KW   Nucleotide-binding; Photosynthesis; Plastid.
FT   CHAIN           1..353
FT                   /note="Magnesium-chelatase subunit ChlI"
FT                   /id="PRO_0000206865"
FT   BINDING         49..56
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   353 AA;  39532 MW;  8CE4213C8CC84C35 CRC64;
     MTSTADVFDK KDQFNFVFPF TAIVGQEEMK ISLLLNVVDP KIGGVMIMGD RGTGKTTTIR
     ALVDILPDIL VVKDDPYNSH PHDVDLMSSE VQALVLNRMN IETCYTKVPL VDLPLGATED
     RVCGSIDIEK ALSEGKKSFE PGLLAKANRG LLYVDEINLL DDHLVDVLLD CSASGWNLVE
     REGISVKHPS KFVLIGSGNP EEGELRPQLL DRFGLHAEIK TVKDPELRVK IVEERTEFDK
     DPVAYIRKFS KSQDELREKI INAQNLLPKV EMPRELKFNI SKICGILDID GLRGDIVTNR
     ASKAYAAIQQ RNVVEIGDIQ KVIVSCLRHR LRKDPLEIIE SGEKIQKAFT NIF
 
 
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