Structure of PDB 1c5x Chain B

Receptor sequence
>1c5xB (length=248) Species: 9606 (Homo sapiens) [Search protein sequence]
IIGGEFTTIENQPWFAAIYRRHRGGSVTYVCGGSLMSPCWVISATHCFID
YPKKEDYIVYLGRSRLNSNTQGEMKFEVENLILHKDYSADTLAHHNDIAL
LKIRSKEGRCAQPSRTIQTICLPSMYNDPQFGTSCEITGFGKEASTDYLY
PEQLKMTVVKLISHRECQQPHYYGSEVTTKMLCAADPQWKTDSCQGDSGG
PLVCSLQGRMTLTGIVSWGRGCALKDKPGVYTRVSHFLPWIRSHTKEE
3D structure
PDB1c5x Structural basis for selectivity of a small molecule, S1-binding, submicromolar inhibitor of urokinase-type plasminogen activator.
ChainB
Resolution1.75 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 N26 Q27 W29 P49 A112 Q113 P114 R116 Q119 T120 I121 C122 N11 Q12 W14 P38 A111 Q112 P113 R115 Q118 T119 I120 C121
BS02 ESI B D189 S190 Q192 S195 W215 G216 G219 C220 G226 D192 S193 Q195 S198 W218 G219 G221 C222 G229 MOAD: Ki=0.21uM
PDBbind-CN: -logKd/Ki=6.68,Ki=0.21uM
BindingDB: Ki=210nM
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:1c5x, PDBe:1c5x, PDBj:1c5x
PDBsum1c5x
PubMed10779411
UniProtP00749|UROK_HUMAN Urokinase-type plasminogen activator (Gene Name=PLAU)

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