Structure of PDB 3ptl Chain A

Receptor sequence
>3ptlA (length=279) Species: 37998 (Parengyodontium album) [Search protein sequence]
AAQTNAPWGLARISSTSPGTSTYYYDESAGQGSCVYVIDTGIEASHPEFE
GRAQMVKTYYYSSRDGNGHGTHCAGTVGSRTYGVAKKTQLFGVKVLDDNG
SGQYSTIIAGMDFVASDKNNRNCPKGVVASLSLGGGYSSSVNSAAARLQS
SGVMVAVAAGNNNADARNYSPASEPSVCTVGASDRYDRRSSFSNYGSVLD
IFGPGTSILSTWIGGSTRSISGTSMATPHVAGLAAYLMTLGKTTAASACR
YIADTANKGDLSNIPFGTVNLLAYNNYQA
3D structure
PDB3ptl Crystal structure of proteinase K inhibited by a lactoferrin nonapeptide, Lys-Gly-Glu-Ala-Asp-Ala-Leu-Ser-Leu-Asp at 1.3 A resolution.
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) D39 H69 N161 S224
Catalytic site (residue number reindexed from 1) D39 H69 N161 S224
Enzyme Commision number 3.4.21.64: peptidase K.
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 peptide A H69 L96 G100 S101 G102 Q103 Y104 S105 I108 S132 L133 G134 S138 S140 A158 N161 I220 S224 H69 L96 G100 S101 G102 Q103 Y104 S105 I108 S132 L133 G134 S138 S140 A158 N161 I220 S224
Gene Ontology
Molecular Function
GO:0004252 serine-type endopeptidase activity
GO:0008236 serine-type peptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:3ptl, PDBe:3ptl, PDBj:3ptl
PDBsum3ptl
PubMed
UniProtP06873|PRTK_PARAQ Proteinase K (Gene Name=PROK)

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