Structure of PDB 4tti Chain A

Receptor sequence
>4ttiA (length=237) Species: 562 (Escherichia coli) [Search protein sequence]
ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTG
TYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKL
RDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARV
GNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTIC
TVSAHIRTHEQTTAAEAQTTFNDMIKIALESVLLGDK
3D structure
PDB4tti Crystallographic snapshots of ligand binding to hexameric purine nucleoside phosphorylase and kinetic studies give insight into the mechanism of catalysis.
ChainA
Resolution1.89 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) H4 G20 R24 R43 E75 R87 S90 S203 A204 I206 A217
Catalytic site (residue number reindexed from 1) H4 G20 R24 R43 E75 R87 S90 S203 A204 I206 A217
Enzyme Commision number 2.4.2.1: purine-nucleoside phosphorylase.
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 FMC A M64 S90 C91 G92 F159 V178 E179 M180 E181 S203 M64 S90 C91 G92 F159 V178 E179 M180 E181 S203
BS02 PO4 A G20 R24 R87 G89 S90 G20 R24 R87 G89 S90
BS03 FMC A H4 R43 H4 R43
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004731 purine-nucleoside phosphorylase activity
GO:0016757 glycosyltransferase activity
GO:0016763 pentosyltransferase activity
GO:0042802 identical protein binding
GO:0047975 guanosine phosphorylase activity
Biological Process
GO:0006139 nucleobase-containing compound metabolic process
GO:0006152 purine nucleoside catabolic process
GO:0006974 DNA damage response
GO:0009116 nucleoside metabolic process
GO:0009164 nucleoside catabolic process
GO:0019686 purine nucleoside interconversion
GO:0042278 purine nucleoside metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0016020 membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:4tti, PDBe:4tti, PDBj:4tti
PDBsum4tti
PubMed30337572
UniProtP0ABP8|DEOD_ECOLI Purine nucleoside phosphorylase DeoD-type (Gene Name=deoD)

[Back to BioLiP]