PPIRE08198
Target Protein Information
| Protein_Name | Somatostatin receptor type 2 |
|---|---|
| Protein_Sequence | MELTSEQFNGSQVWIPSPFDLNGSLGPSNGSNQTEPYYDMTSNAVLTFIYFVVCVVGLCGNTLVIYVILRYAKMKTITNIYILNLAIADELFMLGLPFLAMQVALVHWPFGKAICRVVMTVDGINQFTSIFCLTVMSIDRYLAVVHPIKSAKWRRPRTAKMINVAVWGVSLLVILPIMIYAGLRSNQWGRSSCTINWPGESGAWYTGFIIYAFILGFLVPLTIICLCYLFIIIKVKSSGIRVGSSKRKKSEKKVTRMVSIVVAVFIFCWLPFYIFNVSSVSVAISPTPALKGMFDFVVILTYANSCANPILYAFLSDNFKKSFQNVLCLVKVSGAEDGERSDSKQDKSRLNETTETQRTLLNGDLQTSI |
| Organism_Source | Rattus norvegicus |
| Functional_Classification | G protein-coupled receptor |
| Cellular_Localization | Plasma membrane |
| Gene_Names | Sstr2 |
| UniProt_ID | P30680 |
| Protein-Protein Interaction Networks | |
Peptide Basic Information
| Peptide_Name | sst2-ANT |
|---|---|
| Peptide_Sequence | XcYwKTCy |
| Peptide_Length | 8 |
| Peptide_SMILES | C[C@@H](O)[C@H](NC(=O)[C@H](CCCCN)NC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CS)NC(=O)CN)C(=O)N[C@@H](CS)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)O |
| Chemical_Modification | X1=4-nitrophenylalanine |
| Cyclization_Method | Side chain-side chain cyclization; c2<->C7; disulfide bond |
| Linear/Cyclic | Cyclic |
| N-terminal_Modification | Free |
| C-terminal_Modification | amide |
| Amino_Acid_Distribution | |
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Peptide Physicochemical
| Molecular_Weight | 1023.19 |
|---|---|
| Aliphatic_Index | 0.00000 |
| Aromaticity | 0.37500 |
| Average_Rotatable_Bonds | 3.50000 |
| Charge_at_pH_7 | 0.87204 |
| Isoelectric_Point | 8.21290 |
|---|---|
| Number_of_Hydrogen_Bond_Acceptors | 15 |
| Number_of_Hydrogen_Bond_Donors | 16 |
| Topological_Polar_Surface_Area | 369.52000 |
| X_logP_energy | -1.58670 |
Interaction Information
| Affinity | IC50=15 nM |
|---|---|
| Affinity_Assay | radioligand binding assay |
| PDB_ID | None |
| Type | antagonist |
| Structure | |
Reference Information
| Document_Type | Research Articles |
|---|---|
| Title | Synthesis and evaluation of a 99mTc tricarbonyl-labeled somatostatin receptor-targeting antagonist peptide for imaging of neuroendocrine tumors. |
| Release_Year | 2016 |
| PMID | 28043006 |
| DOI | 10.1016/j.nucmedbio.2016.12.002 |