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Annotation rule MF_01339
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General rule information [?]

Accession MF_01339
Dates 8-NOV-2005 (Created)
19-NOV-2019 (Last updated, Version 18)
Name RuBisCO_L_type2
Scope
Bacteria; Rhodopseudomonas
Bacteria; Rhodobacterales
Bacteria; Rhodospirillales
Bacteria; Comamonadaceae
Bacteria; Thiomonas
Bacteria; Hydrogenophilales
Bacteria; Rhodocyclaceae
Bacteria; Halothiobacillus
Bacteria; Hydrogenovibrio
Bacteria; Thiomicrospira
Template P04718 (RBL2_RHORU)

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
RBL2
Protein name
RecName: Full=Ribulose bisphosphate carboxylase;
Short=RuBisCO;
EC 4.1.1.39;
Gene name
cbbM

Comments [?]

Function RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate. Both reactions occur simultaneously and in competition at the same active site.
Catalytic activity RHEA:23124: 2 (2R)-3-phosphoglycerate + 2 H(+) = CO2 + D-ribulose 1,5-bisphosphate + H2O
EC 4.1.1.39
RHEA:36631: D-ribulose 1,5-bisphosphate + O2 = (2R)-3-phosphoglycerate + 2-phosphoglycolate + 2 H(+)
case <FTGroup:1>
Cofactor Mg(2+)
Note: Binds 1 Mg(2+) ion per subunit.
end case
Subunit Homodimer.
Miscellaneous The basic functional RuBisCO is composed of a large chain homodimer in a 'head-to-tail' conformation. In contrast to form I RuBisCO, the form II RuBisCO are composed solely of large subunits.
Similarity Belongs to the RuBisCO large chain family. Type II subfamily.

Keywords [?]

case <FTGroup:1>
end case
case <Property:PHOTOSYN>
end case

Gene Ontology [?]

case <FTGroup:1>
GO:0000287; Molecular function: magnesium ion binding.
end case
GO:0016984; Molecular function: ribulose-bisphosphate carboxylase activity.

Cross-references [?]

PROSITE PS00157; RUBISCO_LARGE; 1;
Pfam PF00016; RuBisCO_large; 1;
PF02788; RuBisCO_large_N; 1;

Features [?]

From: RBL2_RHORU (P04718)
Key     From     To       Description   Tag   Condition   FTGroup
ACT_SITE     166     166       Proton acceptor     K  
ACT_SITE     287     287       Proton acceptor     H  
METAL     191     191       Magnesium; via carbamate group     K   1
METAL     193     193       Magnesium     D   1
METAL     194     194       Magnesium     E   1
SITE     329     329       Transition state stabilizer     K  
BINDING     111     111       Substrate; in homodimeric partner     N  
BINDING     168     168       Substrate     K  
BINDING     288     288       Substrate     R  
BINDING     321     321       Substrate     H  
BINDING     368     368       Substrate     S  
MOD_RES     191     191       N6-carboxylysine     K  

Additional information [?]

Size range 458-466 amino acids
Related rules MF_01133 (RBL); MF_01338 (RBL)
Fusion None