Structure of PDB 1g9i Chain E Binding Site BS01

Receptor Information

>1g9i Chain E (length=223) Species: 9913 (Bos taurus)

IVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRL
GEDNINVVEGNEQFISASKSIVHPSYNSNTLNNDIMLIKLKSAASLNSRV
ASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKAPILSDSSCKS
AYPGQITSNMFCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQK
NKPGVYTKVCNYVSWIKQTIASN

Ligand information

>1g9i Chain I (length=22) Species: 3916 (Vigna radiata var. radiata)

EPCCDSCRCTKSIPPQCHCANI

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1g9i X-Ray study on an artificial mung bean inhibitor complex with bovine beta-trypsin in neat cyclohexane.
• Resolution: 2.2 Å
• Binding residue (original residue number in PDB): F41 H57 S96 N97 L99 Q175 D189 S190 C191 Q192 G193 S195 W215 G216
• Binding residue (residue number reindexed from 1): F24 H40 S78 N79 L81 Q155 D171 S172 C173 Q174 G175 S177 W193 G194

Enzymatic activity

• Catalytic site (original residue number in PDB): G193 S195 G196
• Catalytic site (residue number reindexed from 1): G175 S177 G178
• Enzyme Commision number: 3.4.21.4: trypsin.

Gene Ontology

Molecular Function

• GO:0004175 endopeptidase activity
• GO:0004252 serine-type endopeptidase activity
• GO:0005515 protein binding
• GO:0008236 serine-type peptidase activity
• GO:0046872 metal ion binding
• GO:0097655 serpin family protein binding

Biological Process

• GO:0006508 proteolysis
• GO:0007586 digestion

Cellular Component

• GO:0005576 extracellular region
• GO:0005615 extracellular space
• GO:0097180 serine protease inhibitor complex

External links

• PDB: RCSB:1g9i, PDBe:1g9i, PDBj:1g9i
• PDBsum: 1g9i
• PubMed: 11257512
• UniProt: P00760|TRY1_BOVIN Serine protease 1 (Gene Name=PRSS1)