PPIRE12850
Target Protein Information
| Protein_Name | Streptavidin |
|---|---|
| Protein_Sequence | MRKIVVAAIAVSLTTVSITASASADPSKDSKAQVSAAEAGITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAASIDAAKKAGVNNGNPLDAVQQ |
| Organism_Source | Streptomyces avidinii |
| Functional_Classification | biotin-binding proteins |
| Cellular_Localization | Extracellular |
| Gene_Names | None |
| UniProt_ID | P22629 |
| Protein-Protein Interaction Networks | |
Peptide Basic Information
| Peptide_Name | cyclic NQpWQ |
|---|---|
| Peptide_Sequence | NQpWQ |
| Peptide_Length | 5 |
| Peptide_SMILES | NC(=O)CC[C@H](NC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCC(N)=O)NC(=O)[C@@H](N)CC(N)=O)C(=O)O |
| Chemical_Modification | None |
| Cyclization_Method | Main chain-main chain cyclization; N1<->Q5; amide bond |
| Linear/Cyclic | Cyclic |
| N-terminal_Modification | None |
| C-terminal_Modification | None |
| Amino_Acid_Distribution | |
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Peptide Physicochemical
| Molecular_Weight | 671.71 |
|---|---|
| Aliphatic_Index | 0.00000 |
| Aromaticity | 0.20000 |
| Average_Rotatable_Bonds | 3.60000 |
| Charge_at_pH_7 | -0.00202 |
| Isoelectric_Point | 6.10000 |
|---|---|
| Number_of_Hydrogen_Bond_Acceptors | 9 |
| Number_of_Hydrogen_Bond_Donors | 9 |
| Topological_Polar_Surface_Area | 315.99000 |
| X_logP_energy | -3.02590 |
Interaction Information
| Affinity | KD=61.3 uM |
|---|---|
| Affinity_Assay | Surface plasmon resonance |
| PDB_ID | None |
| Type | Affinity ligand |
| Structure | |
Reference Information
| Document_Type | Research Articles |
|---|---|
| Title | Stepwise Evolution Improves Identification of Diverse Peptides Binding to a Protein Target. |
| Release_Year | 2017 |
| PMID | 28935886 |
| DOI | 10.1038/s41598-017-12440-1 |