Structure of PDB 1ir2 Chain H

Receptor sequence
>1ir2H (length=468) Species: 3055 (Chlamydomonas reinhardtii) [Search protein sequence]
KAGAGFKAGVKDYRLTYYTPDYVVRDTDILAAFRMTPQPGVPPEECGAAV
AAESSTGTWTTVWTDGLTSLDRYKGRCYDIEPVPGEDNQYIAYVAYPIDL
FEEGSVTNMFTSIVGNVFGFKALRALRLEDLRIPPAYVKTFVGPPHGIQV
ERDKLNKYGRGLLGCTIKPKLGLSAKNYGRAVYECLRGGLDFTKDDENVN
SQPFMRWRDRFLFVAEAIYKAQAETGEVKGHYLNATAGTCEEMMKRAVCA
KELGVPIIMHDYLTGGFTANTSLAIYCRDNGLLLHIHRAMHAVIDRQRNH
GIHFRVLAKALRMSGGDHLHSGTVVGKLEGEREVTLGFVDLMRDDYVEKD
RSRGIYFTQDWCSMPGVMPVASGGIHVWHMPALVEIFGDDACLQFGGGTL
GHPWGNAPGAAANRVALEACTQARNEGRDLAREGGDVIRSACKWSPELAA
ACEVWKEIKFEFDTIDKL
3D structure
PDB1ir2 Crystal structure of activated ribulose-1,5-bisphosphate carboxylase/oxygenase from green alga Chlamydomonas reinhardtii complexed with 2-carboxyarabinitol-1,5-bisphosphate.
ChainH
Resolution1.84 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D203 E204 H294 H327 K334
Catalytic site (residue number reindexed from 1) D196 E197 H287 H320 K327
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 CAP H T65 W66 N123 T58 W59 N116
BS02 MG H K201 D203 E204 K194 D196 E197
BS03 CAP H T173 K175 K201 D203 E204 H294 R295 H327 K334 S379 G380 G403 G404 T166 K168 K194 D196 E197 H287 R288 H320 K327 S372 G373 G396 G397
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:1ir2, PDBe:1ir2, PDBj:1ir2
PDBsum1ir2
PubMed11866526
UniProtP00877|RBL_CHLRE Ribulose bisphosphate carboxylase large chain (Gene Name=rbcL)

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