Structure of PDB 1ibq Chain B

Receptor sequence
>1ibqB (length=325) Species: 5063 (Aspergillus phoenicis) [Search protein sequence]
SKGSAVTTPQNNDEEYLTPVTVGKSTLHLDFDTGSADLWVFSDELPSSEQ
TGHDLYTPSSSATKLSGYSWDISYGDGSSASGDVYRDTVTVGGVTTNKQA
VEAASKISSEFVQDTANDGLLGLAFSSINTVQPKAQTTFFDTVKSQLDSP
LFAVQLKHDAPGVYDFGYIDDSKYTGSITYTDADSSQGYWGFSTDGYSIG
DGSSSSSGFSAIADTGTTLILLDDEIVSAYYEQVSGAQESYEAGGYVFSC
STDLPDFTVVIGDYKAVVPGKYINYAPVSTGSSTCYGGIQSNSGLGLSIL
GDVFLKSQYVVFNSEGPKLGFAAQA
3D structure
PDB1ibq Structure of aspergillopepsin I from Aspergillus phoenicis: variations of the S1'-S2 subsite in aspartic proteinases.
ChainB
Resolution2.14 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D32 S35 D37 W39 Y74 D214 T217
Catalytic site (residue number reindexed from 1) D32 S35 D37 W39 Y74 D214 T217
Enzyme Commision number 3.4.23.18: aspergillopepsin I.
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 MAN B S59 S60 S59 S60
BS02 ZN B H28 D54 D118 H28 D54 D118
BS03 ZN B S1 D148 S1 D148
BS04 ZN B D32 D214 D32 D214
Gene Ontology
Molecular Function
GO:0004190 aspartic-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:1ibq, PDBe:1ibq, PDBj:1ibq
PDBsum1ibq
PubMed11418762
UniProtQ12567|PEPA_ASPPH Aspergillopepsin-1 (Gene Name=pepA)

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