Structure of PDB 1nb3 Chain A

Receptor sequence
>1nb3A (length=220) Species: 9823 (Sus scrofa) [Search protein sequence]
YPPSMDWRKKGNFVSPVKNQGSCGSCWTFSTTGALESAVAIATGKMLSLA
EQQLVDCAQNFNNHGCQGGLPSQAFEYIRYNKGIMGEDTYPYKGQDDHCK
FQPDKAIAFVKDVANITMNDEEAMVEAVALYNPVSFAFEVTNDFLMYRKG
IYSSTSCHKTPDKVNHAVLAVGYGEENGIPYWIVKNSWGPQWGMNGYFLI
ERGKNMCGLAACASYPIPLV
3D structure
PDB1nb3 Crystal structure of stefin A in complex with cathepsin H: N-terminal residues of inhibitors can adapt to the active sites of endo- and exopeptidases
ChainA
Resolution2.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Q19 C25 H159 N175
Catalytic site (residue number reindexed from 1) Q20 C26 H166 N186
Enzyme Commision number 3.4.22.16: cathepsin H.
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 A G66 L67 S69 Q70 C205 A206 G69 L70 S72 Q73 C212 A213
BS02 BMA A F58B Y77 F61 Y80
Gene Ontology
Molecular Function
GO:0008234 cysteine-type peptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:1nb3, PDBe:1nb3, PDBj:1nb3
PDBsum1nb3
PubMed12581647
UniProtO46427|CATH_PIG Pro-cathepsin H (Gene Name=CTSH)

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