Structure of PDB 1ba8 Chain B

Receptor sequence
>1ba8B (length=252) Species: 9606 (Homo sapiens) [Search protein sequence]
IVEGSDAEIGMSPWQVMLFRKSPQELLCGASLISDRWVLTAAHCLLYPPW
DKNFTENDLLVRIGKHSRTRYERNIEKISMLEKIYIHPRYNWRENLDRDI
ALMKLKKPVAFSDYIHPVCLPDRETAASLLQAGYKGRVTGWGNLKETGQP
SVLQVVNLPIVERPVCKDSTRIRITDNMFCAGYKPDEGKRGDACEGDSGG
PFVMKSPFNNRWYQMGIVSWGEGCDRDGKYGFYTHVFRLKKWIQKVIDQF
GE
3D structure
PDB1ba8 Highly selective mechanism-based thrombin inhibitors: structures of thrombin and trypsin inhibited with rigid peptidyl aldehydes.
ChainB
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) H57 D102 E192 G193 D194 S195 G196
Catalytic site (residue number reindexed from 1) H43 D99 E195 G196 D197 S198 G199
Enzyme Commision number 3.4.21.5: thrombin.
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 F34 R67 T74 R75 Y76 K81 I82 F19 R62 T69 R70 Y71 K77 I78
BS02 0IT B H57 Y60A W60D E97A L99 I174 D189 A190 S195 S214 W215 G216 H43 Y47 W50 E94 L96 I172 D192 A193 S198 S219 W220 G221 PDBbind-CN: -logKd/Ki=9.00,Ki=1.0nM
Gene Ontology
Molecular Function
GO:0004252 serine-type endopeptidase activity
GO:0005509 calcium ion binding
Biological Process
GO:0006508 proteolysis
GO:0007596 blood coagulation

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Molecular Function
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Biological Process
External links
PDB RCSB:1ba8, PDBe:1ba8, PDBj:1ba8
PDBsum1ba8
PubMed9724521
UniProtP00734|THRB_HUMAN Prothrombin (Gene Name=F2)

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