Structure of PDB 8iax Chain B

Receptor sequence

>8iaxB (length=501) Species: 171101 (Streptococcus pneumoniae R6)

MNKRVKIVATLGPAVEIRGGKKFGEDGYWGEKLDVEASAKNIAKLIEAGA
NTFRFNFSHGDHQEQGERMATVKLAEKIAGKKVGFLLDTKGPEIRTELFE
GEAKEYSYKTGEKIRVATKQGIKSTREVIALNVAGALDIYDDVEVGRQVL
VDDGKLGLRVVAKDDATREFEVEVENDGIIAKQKGVNIPNTKIPFPALAE
RDNDDIRFGLEQGINFIAISFVRTAKDVNEVRAICEETGNGHVQLFAKIE
NQQGIDNLDEIIEAADGIMIARGDMGIEVPFEMVPVYQKMIIKKVNAAGK
VVITATNMLETMTEKPRATRSEVSDVFNAVIDGTDATMLSGESANGKYPL
ESVTTMATIDKNAQALLNEYGRLDSDSFERNSKTEVMASAVKDATSSMDI
KLVVTLTKTGHTARLISKYRPNADILALTFDELTERGLMLNWGVIPMLTD
APSSTDDMFEIAERKAVEAGLVESGDDIVIVAGVPVGEAVRTNTMRIRTV
R

3D structure

• PDB: 8iax Functional and structural characterization of Streptococcus pneumoniae pyruvate kinase involved in fosfomycin resistance.
• Chain: B
• Resolution: 1.8 Å

Enzymatic activity

• Enzyme Commision number: 2.7.1.40: pyruvate kinase.

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	FBP	B	S382 T384 T407 K408 T409 H411 T412 R491	S382 T384 T407 K408 T409 H411 T412 R491
BS02	PEP	B	R54 K248 A271 G273 D274 T306	R54 K248 A271 G273 D274 T306
BS03	MG	B	E250 D274	E250 D274

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
• GO:0005829 cytosol

External links

• PDB: RCSB:8iax, PDBe:8iax, PDBj:8iax
• PDBsum: 8iax
• PubMed: 37286036
• UniProt: Q8DQ84