Structure of PDB 3ig6 Chain B

Receptor sequence
>3ig6B (length=245) Species: 9606 (Homo sapiens) [Search protein sequence]
IIGGEFTTIENQPWFAAIYRRHRGGSVTYVCGGSLISPCWVISATHCFID
YPKKEDYIVYLGRSRLNSNTQGEMKFEVENLILHKDYSADTLAHHNDIAL
LKIRSKEGRCAQPSRTIQTICLPSMYNDPQFGTSCEITGFGKENSTDYLY
PEQLKMTVVKLISHRECQQPHYYGSEVTTKMLCAADPQWKTDSCQGDSGG
PLVCSLQGRMTLTGIVSWGRGCALKDKPGVYTRVSHFLPWIRSHT
3D structure
PDB3ig6 Identification of orally bioavailable, non-amidine inhibitors of Urokinase Plasminogen Activator (uPA)
ChainB
Resolution1.83 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H57 D102 Q192 G193 D194 S195 G196
Catalytic site (residue number reindexed from 1) H46 D97 Q195 G196 D197 S198 G199
Enzyme Commision number 3.4.21.73: u-plasminogen activator.
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 peptide B P114 T120 C122 R206 P113 T119 C121 R209
BS02 438 B V41 C42 H57 L97B A98 H99 D189 S190 C191 Q192 G193 S195 V213 W215 G216 G218 V30 C31 H46 L92 A93 H94 D192 S193 C194 Q195 G196 S198 V216 W218 G219 G221 MOAD: ic50=0.025uM
PDBbind-CN: -logKd/Ki=7.60,IC50=0.025uM
BindingDB: IC50=25nM
BS03 438 B Y149 L150 Y148 L149 MOAD: ic50=0.025uM
PDBbind-CN: -logKd/Ki=7.60,IC50=0.025uM
BindingDB: IC50=25nM
Gene Ontology
Molecular Function
GO:0004252 serine-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:3ig6, PDBe:3ig6, PDBj:3ig6
PDBsum3ig6
PubMed19703768
UniProtP00749|UROK_HUMAN Urokinase-type plasminogen activator (Gene Name=PLAU)

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