Structure of PDB 6mxg Chain B

Receptor sequence
>6mxgB (length=172) Species: 5702 (Trypanosoma brucei brucei) [Search protein sequence]
CKYDFATSVLFTEAELHTRMRGVAQRIADDYSNCNLKPLENPLVIVSVLK
GSFVFTADMVRILGDFGVPTRVEFLRRGKHVLVLEDILDTALTLREVVDS
LKKSEPASIKTLVAIDKPGGRKIPFTAEYVVADVPNVFVVGYGLDYDQSY
REVRDVVILKPSVYETWGKELE
3D structure
PDB6mxg Crystal structures of Trypanosoma brucei hypoxanthine - guanine - xanthine phosphoribosyltransferase in complex with IMP, GMP and XMP.
ChainB
Resolution2.392 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) E113 D114 D117 F166 R179
Catalytic site (residue number reindexed from 1) E85 D86 D89 F138 R151
Enzyme Commision number 2.4.2.8: hypoxanthine 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 XMP B D117 F166 V167 L172 D173 D89 F138 V139 L144 D145
BS02 MG B E113 D114 E85 D86
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0000287 magnesium ion binding
GO:0004422 hypoxanthine phosphoribosyltransferase activity
GO:0016757 glycosyltransferase activity
GO:0046872 metal ion binding
GO:0052657 guanine phosphoribosyltransferase activity
Biological Process
GO:0006166 purine ribonucleoside salvage
GO:0006178 guanine salvage
GO:0032263 GMP salvage
GO:0032264 IMP salvage
GO:0046100 hypoxanthine metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0020015 glycosome
GO:0031981 nuclear lumen
GO:0097014 ciliary plasm

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:6mxg, PDBe:6mxg, PDBj:6mxg
PDBsum6mxg
PubMed31287615
UniProtQ07010|HPRT_TRYBB Hypoxanthine-guanine phosphoribosyltransferase (Gene Name=HGPRT)

[Back to BioLiP]