Structure of PDB 1gi8 Chain B

Receptor sequence
>1gi8B (length=245) Species: 9606 (Homo sapiens) [Search protein sequence]
IIGGEFTTIENQPWFAAIYRRHRGGSVTYVCGGSLMSPCWVISATHCFID
YPKKEDYIVYLGRSRLNSNTQGEMKFEVENLILHKDYSADTLAHHNDIAL
LKIRSKEGRCAQPSRTIQTICLPSMYNDPQFGTSCEITGFGKEASTDYLY
PEQLKMTVVKLISHRECQQPHYYGSEVTTKMLCAADPQWKTDSCQGDSGG
PLVCSLQGRMTLTGIVSWGRGCALKDKPGVYTRVSHFLPWIRSHT
3D structure
PDB1gi8 A novel serine protease inhibition motif involving a multi-centered short hydrogen bonding network at the active site.
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 W29 P49 A112 Q113 P114 Q119 T120 I121 C122 N11 W14 P38 A111 Q112 P113 Q118 T119 I120 C121
BS02 BMZ B H57 S190 C191 Q192 S195 V213 W215 G216 H46 S193 C194 Q195 S198 V216 W218 G219 PDBbind-CN: -logKd/Ki=5.05,Ki=8.9uM
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:1gi8, PDBe:1gi8, PDBj:1gi8
PDBsum1gi8
PubMed11292354
UniProtP00749|UROK_HUMAN Urokinase-type plasminogen activator (Gene Name=PLAU)

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