Structure of PDB 1ir1 Chain A

Receptor sequence
>1ir1A (length=464) Species: 3562 (Spinacia oleracea) [Search protein sequence]
EFKAGVKDYKLTYYTPEYETLDTDILAAFRVSPQPGVPPEEAGAAVAAES
STGTWTTVWTDGLTNLDRYKGRCYHIEPVAGEENQYICYVAYPLDLFEEG
SVTNMFTSIVGNVFGFKALRALRLEDLRIPVAYVKTFQGPPHGIQVERDK
LNKYGRPLLGCTIKPKLGLSAKNYGRAVYECLRGGLDFTKDDENVNSQPF
MRWRDRFLFCAEALYKAQAETGEIKGHYLNATAGTCEDMMKRAVFARELG
VPIVMHDYLTGGFTANTTLSHYCRDNGLLLHIHRAMHAVIDRQKNHGMHF
RVLAKALRLSGGDHIHSGTVVGKLEGERDITLGFVDLLRDDYTEKDRSRG
IYFTQSWVSTPGVLPVASGGIHVWHMPALTEIFGDDSVLQFGGGTLGHPW
GNAPGAVANRVALEACVQARNEGRDLAREGNTIIREATKWSPELAAACEV
WKEIKFEFPAMDTV
3D structure
PDB1ir1 Crystal structure of activated ribulose-1,5-bisphosphate carboxylase/oxygenase from green alga Chlamydomonas reinhardtii complexed with 2-carboxyarabinitol-1,5-bisphosphate.
ChainA
Resolution1.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) K175 K201 D202 D203 E204 H294 H327 K334
Catalytic site (residue number reindexed from 1) K164 K190 D191 D192 E193 H283 H316 K323
Enzyme Commision number 4.1.1.39: ribulose-bisphosphate carboxylase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 MG A K201 D203 E204 K190 D192 E193
BS02 CAP A T173 K175 K201 D203 E204 H294 R295 H327 K334 L335 S379 G380 G403 G404 T162 K164 K190 D192 E193 H283 R284 H316 K323 L324 S368 G369 G392 G393
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0004497 monooxygenase activity
GO:0016829 lyase activity
GO:0016984 ribulose-bisphosphate carboxylase activity
GO:0046872 metal ion binding
Biological Process
GO:0009853 photorespiration
GO:0015977 carbon fixation
GO:0015979 photosynthesis
GO:0019253 reductive pentose-phosphate cycle
Cellular Component
GO:0009507 chloroplast

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Cellular Component
External links
PDB RCSB:1ir1, PDBe:1ir1, PDBj:1ir1
PDBsum1ir1
PubMed11866526
UniProtP00875|RBL_SPIOL Ribulose bisphosphate carboxylase large chain (Gene Name=rbcL)

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