Structure of PDB 2qaa Chain A

Receptor sequence
>2qaaA (length=185) Species: 1911 (Streptomyces griseus) [Search protein sequence]
ISGGDAIYSSTGRCSLGFNVRSGSTYYFLTAGHCTDGATTWWANSARTTV
LGTTSGSSFPNNDYGIVRYTNTTIPKDGTVGGQDITSAANATVGMAVTRR
GSTTGTHSGSVTALNATVNYGGGDVVYGMIRTNVCAEPGDSGGPLYSGTR
AIGLTSGGSGNCSSGGTTFFQPVTEALSAYGVSVY
3D structure
PDB2qaa 1.2A-resolution crystal structures reveal the second tetrahedral intermediates of streptogrisin B (SGPB).
ChainA
Resolution1.23 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 G193 S195 S214
Catalytic site (residue number reindexed from 1) H33 D63 G139 S141 S156
Enzyme Commision number 3.4.21.81: streptogrisin 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 TYR A H57 A192 E192A P192B G193 S195 G216 S217 H33 A136 E137 P138 G139 S141 G158 S159
BS02 LEU A H57 E192A P192B G193 S195 S214 G215 H33 E137 P138 G139 S141 S156 G157
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:2qaa, PDBe:2qaa, PDBj:2qaa
PDBsum2qaa
PubMed18157955
UniProtP00777|PRTB_STRGR Streptogrisin-B (Gene Name=sprB)

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