Structure of PDB 3qdk Chain A

Receptor sequence

>3qdkA (length=546) Species: 86665 (Halalkalibacterium halodurans)

KYTIGVDYGTESGRAVLIDLSNGQELADHVTPYRHGVIDQYLPNTNIKLG
HEWALQHPLDYVEVLTTSVPAVMKEDADDVIGIGVDFTACTMLPVDEEGQ
PLCLLAQYKDNPHSWVKLWKHHAAQDKANAINEMAEKRGEAFLPRYGGKI
SSEWMIAKVWQILDEAEDVYNRTDQFLEATDWIVSQMTGKIVKNSCTAGY
KAIWHKREGYPSNEFFKALDPRLEHLTTTKLRGDIVPLGERAGGLLPEMA
EKMGLNPGIAVAVGNVDAHAAVPAVGVTTPGKLVMAMGTSICHMLLGEKE
QEVEGMCGVVEDGIIPGYLGYEAGQSAVGDIFAWFVKHGVSAATFDEAQE
KGVNVHALLEEKASQLRPGESGLLALDWWNGNRSILVDTELSGMLLGYTL
QTKPEEIYRALLEATAFGTRAIVDAFHGRGVEVHELYACGGLPQKNHLLM
QIFADVTNREIKVAASKQTPALGAAMFASVAAGSEVGGYDSIEEAAKKMG
RVKDETFKPIPEHVAIYEKLYQEYVTLHDYFGRGANDVMKRLKALK

3D structure

• PDB: 3qdk Structural insight into mechanism and diverse substrate selection strategy of L-ribulokinase.
• Chain: A
• Resolution: 2.31 Å

Enzymatic activity

• Enzyme Commision number: 2.7.1.16: ribulokinase.

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	QDK	A	T95 A96 W126 D274	T88 A89 W119 D267

Gene Ontology

Molecular Function

• GO:0005524 ATP binding
• GO:0008741 ribulokinase activity
• GO:0016301 kinase activity
• GO:0019150 D-ribulokinase activity

Biological Process

• GO:0005975 carbohydrate metabolic process
• GO:0016310 phosphorylation
• GO:0019321 pentose metabolic process
• GO:0019568 arabinose catabolic process
• GO:0019569 L-arabinose catabolic process to xylulose 5-phosphate
• GO:0046835 carbohydrate phosphorylation

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:3qdk, PDBe:3qdk, PDBj:3qdk
• PDBsum: 3qdk
• PubMed: 22072612
• UniProt: Q9KBQ3|ARAB_HALH5 Ribulokinase (Gene Name=araB)