Structure of PDB 4kcw Chain A Binding Site BS01

Receptor Information

>4kcw Chain A (length=498) Species: 5702 (Trypanosoma brucei brucei)

SQLEHNIGLSIFEPVAKHRANRIVCTIGPSTQSVEALKNLMKSGMSVARM
NFSHGSHEYHQTTINNVRAAAAELGLHIGIALDTKGPEIRTGLFKDGEVS
FAPGDIVCVTTDPAYEKVGTKEKFYIDYPQLTNAVRPGGSIYVDDGVMTL
RVVSKEDDRTLKCHVNNHHRLTDRRGINLPGCEVDLPAVSEKDRKDLEFG
VAQGVDMIFASFIRTAEQVREVRAALGEKGKDILIISKIENHQGVQNIDS
IIEASNGIMVARGDLGVEIPAEKVCVAQMCIISKCNVVGKPVICATQMLE
SMTSNPRPTRAEVSDVANAVLNGADCVMLSGETAKGKYPNEVVQYMARIC
VEAQSATHDTVMFNSIKNLQKIPMCPEEAVCSSAVASAFEVQAKAMLVLS
NTGRSARLISKYRPNCPIICVTTRLQTCRQLNVTRSVVSVFYDAAKSGED
KDKEKRVKLGLDFAKKEKYASTGDVVVVVHADHSVKGYPNQTRLIYLP

Ligand information

• Ligand ID: MG
• InChI: InChI=1S/Mg/q+2
• InChIKey: JLVVSXFLKOJNIY-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Mg+2]
  CACTVS 3.341: [Mg++]
• Formula: Mg
• Name: MAGNESIUM ION
• DrugBank: DB01378
• PDB chain: 4kcw Chain A Residue 1001

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4kcw Pyruvate kinases have an intrinsic and conserved decarboxylase activity.
• Resolution: 2.5 Å
• Binding residue (original residue number in PDB): E241 D265
• Binding residue (residue number reindexed from 1): E240 D264
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): R50 R91 K239 T297
• Catalytic site (residue number reindexed from 1): R49 R90 K238 T296
• Enzyme Commision number: 2.7.1.40: pyruvate kinase.

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0003824 catalytic activity
• GO:0004743 pyruvate kinase activity
• GO:0005524 ATP binding
• GO:0016301 kinase activity
• GO:0030955 potassium ion binding
• GO:0046872 metal ion binding

Biological Process

• GO:0006096 glycolytic process
• GO:0016310 phosphorylation

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:4kcw, PDBe:4kcw, PDBj:4kcw
• PDBsum: 4kcw
• PubMed: 24328825
• UniProt: P30615|KPYK1_TRYBB Pyruvate kinase 1 (Gene Name=PYK1)