PPIRE11646

Target Protein Information
Protein_Name Neutrophil elastase
Protein_Sequence MTLGRRLACLFLACVLPALLLGGTALASEIVGGRRARPHAWPFMVSLQLRGGHFCGATLIAPNFVMSAAHCVANVNVRAVRVVLGAHNLSRREPTRQVFAVQRIFENGYDPVNLLNDIVILQLNGSATINANVQVAQLPAQGRRLGNGVQCLAMGWGLLGRNRGIASVLQELNVTVVTSLCRRSNVCTLVRGRQAGVCFGDSGSPLVCNGLIHGIASFVRGGCASGLYPDAFAPVAQFVNWIDSIIQRSEDNPCPHPRDPDPASRTH
Organism_Source Homo sapiens
Functional_Classification serine proteinases
Cellular_Localization Extracellular
Gene_Names ELANE
UniProt_ID P08246
Protein-Protein Interaction Networks
Peptide Basic Information
Peptide_Name SFTI-1
Peptide_Sequence GRCTKSIPPICFPD
Peptide_Length 14
Peptide_SMILES CC[C@H](C)[C@H](NC(=O)[C@@H]1CCCN1C(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)[C@H](CCCCN)NC(=O)[C@@H](NC(=O)[C@H](CS)NC(=O)[C@H](CCCNC(=N)N)NC(=O)CN)[C@@H](C)O)[C@@H](C)CC)C(=O)N[C@@H](CS)C(=O)N[C@@H](Cc1ccccc1)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CC(=O)O)C(=O)O
Chemical_Modification None
Cyclization_Method multi-point cyclization; G1<->D14; amide bond; C3<->C11; disulfide bond
Linear/Cyclic Cyclic
N-terminal_Modification None
C-terminal_Modification None
Amino_Acid_Distribution
Peptide Physicochemical
Molecular_Weight 1533.82
Aliphatic_Index 55.71429
Aromaticity 0.07143
Average_Rotatable_Bonds 3.14286
Charge_at_pH_7 0.87418
Isoelectric_Point 8.22969
Number_of_Hydrogen_Bond_Acceptors 22
Number_of_Hydrogen_Bond_Donors 21
Topological_Polar_Surface_Area 580.93000
X_logP_energy -5.71473
Interaction Information
Affinity Ki=105 uM
Affinity_Assay Enzyme Inhibition Kinetics
PDB_ID None
Type Inhibitor
Structure
Reference Information
Document_Type Research Articles
Title High-resolution structure of a potent, cyclic proteinase inhibitor from sunflower seeds.
Release_Year 1999
PMID 10390350
DOI 10.1006/jmbi.1999.2891