Structure of PDB 3t4q Chain B

Receptor sequence
>3t4qB (length=263) Species: 3702 (Arabidopsis thaliana) [Search protein sequence]
DDANKIRREEVLVSMCDQRARMLQDQFSVSVNHVHALAILVSTFHYHKNP
SAIDQETFAEYTARTAFERPLLSGVAYAEKVVNFEREMFERQHNWVIKTM
DRGEPSPVRDEYAPVIFSQDSVSYLESLDMMSGEEDRENILRARETGKAV
LTSPFRLLETHHLGVVLTFPVYKSSLPENPTVEERIAATAGYLGGAFDVE
SLVENLLGQLAGNQAIVVHVYDITNASDPLVMYGNQDESLSHESKLDFGD
PFRKHKMICRYHQ
3D structure
PDB3t4q Structural basis for cytokinin recognition by Arabidopsis thaliana histidine kinase 4.
ChainB
Resolution2.3 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 2.7.13.3: histidine kinase.
3.1.3.16: protein-serine/threonine phosphatase.
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 ZEA B L251 M256 D262 F281 L283 L284 V292 T294 G320 A322 L125 M130 D136 F155 L157 L158 V166 T168 G194 A196 BindingDB: EC50=1100nM
External links
PDB RCSB:3t4q, PDBe:3t4q, PDBj:3t4q
PDBsum3t4q
PubMed21964459
UniProtQ9C5U0|AHK4_ARATH Histidine kinase 4 (Gene Name=AHK4)

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