Structure of PDB 4nix Chain A

Receptor sequence
>4nixA (length=221) Species: 9913 (Bos taurus) [Search protein sequence]
GGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYESGIQVRLGE
DNINVVEGNEQFISASKSIVHPSYNSNTLNNDIMLIKLKSAASLNSRVAS
ISLPTSCASAGTQCLISGWGHTKSSGTSHPDVLKCLKAPILSDSSCKSAY
PGQITSNMFCAGYLEGGKKSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNK
PGVYTKVCNYVSWIKQTIASN
3D structure
PDB4nix N-terminal protein modification by substrate-activated reverse proteolysis.
ChainA
Resolution1.3 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 Q192 G193 D194 S195 G196
Catalytic site (residue number reindexed from 1) H38 D82 Q172 G173 D174 S175 G176
Enzyme Commision number 3.4.21.4: trypsin.
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 CA A E70 N72 V75 E80 E50 N52 V55 E60
BS02 ZN A H143 H151 H121 H129
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

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Biological Process
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Cellular Component
External links
PDB RCSB:4nix, PDBe:4nix, PDBj:4nix
PDBsum4nix
PubMed24520050
UniProtP00760|TRY1_BOVIN Serine protease 1 (Gene Name=PRSS1)

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