PPIRE04367
Target Protein Information
| Protein_Name | Calpain-2 catalytic subunit |
|---|---|
| Protein_Sequence | MAGIAMKLAKDREAAEGLGSHERAIKYLNQDYETLRNECLEAGALFQDPSFPALPSSLGFKELGPYSSKTRGIEWKRPTEICADPQFIIGGATRTDICQGALGDCWLLAAIASLTLNEEILARVVPLDQSFQENYAGIFHFQFWQYGEWVEVVVDDRLPTKDGELLFVHSAEGSEFWSALLEKAYAKINGCYEALSGGATTEGFEDFTGGIAEWYELRKPPPNLFKIIQKALEKGSLLGCSIDITSAADSEAVTYQKLVKGHAYSVTGAEEVESSGSLQKLIRIRNPWGQVEWTGKWNDNCPSWNTVDPEVRANLTERQEDGEFWMSFSDFLRHYSRLEICNLTPDTLTCDSYKKWKLTKMDGNWRRGSTAGGCRNYPNTFWMNPQYLIKLEEEDEDDEDGERGCTFLVGLIQKHRRRQRKMGEDMHTIGFGIYEVPEELTGQTNIHLSKNFFLTTRARERSDTFINLREVLNRFKLPPGEYVLVPSTFEPHKNGDFCIRVFSEKKADYQTVDDEIEANIEEIEANEEDIGDGFRRLFAQLAGEDAEISAFELQTILRRVLAKREDIKSDGFSIETCKIMVDMLDEDGSGKLGLKEFYILWTKIQKYQKIYREIDVDRSGTMNSYEMRKALEEAGFKLPCQLHQVIVARFADDELIIDFDNFVRCLVRLEILFKIFKQLDPENTGTIQLDLISWLSFSVL |
| Organism_Source | Rattus norvegicus |
| Functional_Classification | cysteine proteases |
| Cellular_Localization | Cytoplasm |
| Gene_Names | Capn2 |
| UniProt_ID | Q07009 |
| Protein-Protein Interaction Networks | |
Peptide Basic Information
| Peptide_Name | Leupeptin |
|---|---|
| Peptide_Sequence | LLR |
| Peptide_Length | 3 |
| Peptide_SMILES | CC(C)C[C@H](NC(=O)[C@@H](N)CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C(=O)O |
| Chemical_Modification | None |
| Cyclization_Method | None |
| Linear/Cyclic | Linear |
| N-terminal_Modification | Acetyl |
| C-terminal_Modification | aldehyde |
| Amino_Acid_Distribution | |
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Peptide Physicochemical
| Molecular_Weight | 400.52 |
|---|---|
| Aliphatic_Index | 260.00000 |
| Aromaticity | 0.00000 |
| Average_Rotatable_Bonds | 4.33333 |
| Charge_at_pH_7 | 0.99798 |
| Isoelectric_Point | 10.55000 |
|---|---|
| Number_of_Hydrogen_Bond_Acceptors | 5 |
| Number_of_Hydrogen_Bond_Donors | 7 |
| Topological_Polar_Surface_Area | 183.42000 |
| X_logP_energy | -0.27663 |
Interaction Information
| Affinity | IC50=3 mM |
|---|---|
| Affinity_Assay | Enzyme Inhibition Kinetics |
| PDB_ID | 1TL9 |
| Type | Inhibitor |
| Structure | |
Reference Information
| Document_Type | Research Articles |
|---|---|
| Title | Crystal structures of calpain-E64 and -leupeptin inhibitor complexes reveal mobile loops gating the active site. |
| Release_Year | 2004 |
| PMID | 15491615 |
| DOI | 10.1016/j.jmb.2004.09.016 |