Structure of PDB 6hgr Chain B

Receptor sequence
>6hgrB (length=178) Species: 9606 (Homo sapiens) [Search protein sequence]
DSELQLVEQRIRSFPDFPTPGVVFRDISPVLKDPASFRAAIGLLARHLKA
THGGRIDYIAGLDSRGFLFGPSLAQELGLGCVLIRKRGKLPGPTLWASYS
LEYGKAELEIQKDALEPGQRVVVVDDLLATGGTMNAACELLGRLQAEVLE
CVSLVELTSLKGREKLAPVPFFSLLQYE
3D structure
PDB6hgr Structural basis for substrate selectivity and nucleophilic substitution mechanisms in human adenine phosphoribosyltransferase catalyzed reaction.
ChainB
Resolution1.52 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 2.4.2.7: adenine phosphoribosyltransferase.
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 IMP B F26 R27 R67 D127 D128 L129 A131 T132 G133 T135 F24 R25 R65 D125 D126 L127 A129 T130 G131 T133 MOAD: Ki=350uM
PDBbind-CN: -logKd/Ki=3.46,Ki=350uM
Gene Ontology
Molecular Function
GO:0002055 adenine binding
GO:0003999 adenine phosphoribosyltransferase activity
GO:0005515 protein binding
GO:0016208 AMP binding
GO:0016757 glycosyltransferase activity
Biological Process
GO:0006166 purine ribonucleoside salvage
GO:0006168 adenine salvage
GO:0007625 grooming behavior
GO:0032263 GMP salvage
GO:0032264 IMP salvage
GO:0044209 AMP salvage
GO:0046083 adenine metabolic process
Cellular Component
GO:0005576 extracellular region
GO:0005654 nucleoplasm
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0034774 secretory granule lumen
GO:0070062 extracellular exosome

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:6hgr, PDBe:6hgr, PDBj:6hgr
PDBsum6hgr
PubMed31160323
UniProtP07741|APT_HUMAN Adenine phosphoribosyltransferase (Gene Name=APRT)

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