Structure of PDB 6mxc Chain C

Receptor sequence
>6mxcC (length=220) Species: 185431 (Trypanosoma brucei brucei TREU927) [Search protein sequence]
KPNFVGRDADGNVTVDGRSYPMAESVVATESTIHRSMKEMAQTLANAYKT
LKHRDTHNKGNSALAPITDENPLIIISVLKGSYIFTADMVRYLGDCGLPN
VVDFIRITSYGTVQVLDNLRFTELTGKHVLIMEDIADTGRTMKLLVEKIR
REYRPASLKVCVLVDKPGGRVVDFKPEFVCLTAPTRYVVGYGFEVNDRYR
NYRHVFVLKPEYAKRYPSKL
3D structure
PDB6mxc Crystal structures of Trypanosoma brucei hypoxanthine - guanine - xanthine phosphoribosyltransferase in complex with IMP, GMP and XMP.
ChainC
Resolution1.993 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E147 D148 D151 Y201 R214
Catalytic site (residue number reindexed from 1) E133 D134 D137 Y187 R200
Enzyme Commision number ?
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 5GP C D148 I149 D151 T152 G153 T155 K180 Y201 V202 E208 D134 I135 D137 T138 G139 T141 K166 Y187 V188 E194 MOAD: Ki=2.73uM
BS02 MG C V85 G88 S89 E147 D148 V78 G81 S82 E133 D134
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0000287 magnesium ion binding
GO:0000310 xanthine phosphoribosyltransferase activity
GO:0004422 hypoxanthine phosphoribosyltransferase activity
GO:0016757 glycosyltransferase activity
GO:0042301 phosphate ion binding
GO:0046872 metal ion binding
GO:0052657 guanine phosphoribosyltransferase activity
Biological Process
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

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Cellular Component
External links
PDB RCSB:6mxc, PDBe:6mxc, PDBj:6mxc
PDBsum6mxc
PubMed31287615
UniProtQ38CA1

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