Structure of PDB 1qdq Chain A

Receptor sequence
>1qdqA (length=251) Species: 9913 (Bos taurus) [Search protein sequence]
LPESFDAREQWPNCPTIKEIRDQGSCGSCWAFGAVEAISDRICIHSNVNV
EVSAEDMLTCCGGECGDGCNGGEPSGAWNFWTKKGLVSGGLYNSHVGCRP
YSIPPCEHHVNGSRPPCTGEGDTPKCSKTCEPGYSPSYKEDKHFGCSSYS
VANNEKEIMAEIYKNGPVEGAFSVYSDFLLYKSGVYQHVSGEIMGGHAIR
ILGWGVENGTPYWLVANSWNTDWGDNGFFKILRGQDHCGIESEIVAGMPC
T
3D structure
PDB1qdq Substrate specificity of bovine cathepsin B and its inhibition by CA074, based on crystal structure refinement of the complex.
ChainA
Resolution2.18 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Q23 C29 H199 N219
Catalytic site (residue number reindexed from 1) Q23 C29 H197 N217
Enzyme Commision number 3.4.22.1: cathepsin B.
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 074 A Q23 G27 C29 W30 G73 G74 H110 H111 G198 H199 W221 Q23 G27 C29 W30 G71 G72 H108 H109 G196 H197 W219
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:1qdq, PDBe:1qdq, PDBj:1qdq
PDBsum1qdq
PubMed10739956
UniProtP07688|CATB_BOVIN Cathepsin B (Gene Name=CTSB)

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