Structure of PDB 1aa1 Chain B

Receptor sequence

>1aa1B (length=438) Species: 3562 (Spinacia oleracea)

KLTYYTPEYETLDTDILAAFRVSPQPGVPPEEAGAAVAAESSTGTWTTVW
TDGLTNLDRYKGRCYHIEPVAGEENQYICYVAYPLDLFEEGSVTNMFTSI
VGNVFGFKALRALRLEDLRIPVAYVKTFQGPPHGIQVERDKLNKYGRPLL
GCTIKPKLGLSAKNYGRAVYECLRGGLDFTKDDENVNSQPFMRWRDRFLF
CAEALYKAQAETGEIKGHYLNATAGTCEDMMKRAVFARELGVPIVMHDYL
TGGFTANTTLSHYCRDNGLLLHIHRAMHAVIDRQKNHGMHFRVLAKALRL
SGGDHIHSGTVVERDITLGFVDLLRDDYTEKDRSRGIYFTQSWVSTPGVL
PVASGGIHVWHMPALTEIFGDDSVLQFGGGTLGHPWGNAPGAVANRVALE
ACVQARNEGRDLAREGNTIIREATKWSPELAAACEVWK

3D structure

• PDB: 1aa1 Structure of a product complex of spinach ribulose-1,5-bisphosphate carboxylase/oxygenase.
• Chain: B
• Resolution: 2.2 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): D203 E204 H294 H327
• Catalytic site (residue number reindexed from 1): D183 E184 H274 H307
• 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	B	K201 D203 E204	K181 D183 E184

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

External links

• PDB: RCSB:1aa1, PDBe:1aa1, PDBj:1aa1
• PDBsum: 1aa1
• PubMed: 9092835
• UniProt: P00875|RBL_SPIOL Ribulose bisphosphate carboxylase large chain (Gene Name=rbcL)