Structure of PDB 4iu4 Chain A

Receptor sequence
>4iu4A (length=310) Species: 5665 (Leishmania mexicana) [Search protein sequence]
KKMSIVLAPFSGGQPHSGVELGPDYLLKQGLQQDMEKLGWDTRLERVFDG
KVVEARKASDNGDRIGRVKRPRLTAECTEKIYKCVRRVAEQGRFPLTIGG
DHSIALGTVAGVLSVHPDAGVIWVDAHADINTMSGTVSGNLHGCPLSILL
GLDRENIPECFSWVPQVLKPNKIAYIGLRAVDDEEKKILHDLNIAAFSMH
HVDRYGIDKVVSMAIEAVSPKGTEPVMVSYDVDTIDPLYVPATGTPVRGG
LSFREALFLCERIAECGRLVALDVVECNPLLAATESHVNDTISVGCAIAR
CMMGETLLYT
3D structure
PDB4iu4 Crystal structure of arginase from Leishmania mexicana and implications for the inhibition of polyamine biosynthesis in parasitic infections.
ChainA
Resolution1.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H114 D137 H139 D141 H154 D243 D245 E288
Catalytic site (residue number reindexed from 1) H102 D125 H127 D129 H142 D231 D233 E276
Enzyme Commision number 3.5.3.1: arginase.
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 MN A H114 D137 D141 D243 H102 D125 D129 D231
BS02 MN A D137 H139 D243 D245 D125 H127 D231 D233
BS03 S2C A D137 H139 D141 S150 H154 D194 D243 D245 E288 D125 H127 D129 S138 H142 D182 D231 D233 E276 MOAD: Ki~10uM
PDBbind-CN: -logKd/Ki=5.00,Ki~10uM
Gene Ontology
Molecular Function
GO:0004053 arginase activity
GO:0016787 hydrolase activity
GO:0016813 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines
GO:0030145 manganese ion binding
GO:0046872 metal ion binding
Biological Process
GO:0000050 urea cycle
GO:0006525 arginine metabolic process
GO:0019547 arginine catabolic process to ornithine
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4iu4, PDBe:4iu4, PDBj:4iu4
PDBsum4iu4
PubMed23583962
UniProtQ6TUJ5

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