PPIRE01667

Target Protein Information
Protein_Name Voltage-gated inwardly rectifying potassium channel KCNH2
Protein_Sequence MPVRRGHVAPQNTFLDTIIRKFEGQSRKFIIANARVENCAVIYCNDGFCELCGYSRAEVMQRPCTCDFLHGPRTQRRAAAQIAQALLGAEERKVEIAFYRKDGSCFLCLVDVVPVKNEDGAVIMFILNFEVVMEKDMVGSPAHDTNHRGPPTSWLAPGRAKTFRLKLPALLALTARESSVRSGGAGGAGAPGAVVVDVDLTPAAPSSESLALDEVTAMDNHVAGLGPAEERRALVGPGSPPRSAPGQLPSPRAHSLNPDASGSSCSLARTRSRESCASVRRASSADDIEAMRAGVLPPPPRHASTGAMHPLRSGLLNSTSDSDLVRYRTISKIPQITLNFVDLKGDPFLASPTSDREIIAPKIKERTHNVTEKVTQVLSLGADVLPEYKLQAPRIHRWTILHYSPFKAVWDWLILLLVIYTAVFTPYSAAFLLKETEEGPPATECGYACQPLAVVDLIVDIMFIVDILINFRTTYVNANEEVVSHPGRIAVHYFKGWFLIDMVAAIPFDLLIFGSGSEELIGLLKTARLLRLVRVARKLDRYSEYGAAVLFLLMCTFALIAHWLACIWYAIGNMEQPHMDSRIGWLHNLGDQIGKPYNSSGLGGPSIKDKYVTALYFTFSSLTSVGFGNVSPNTNSEKIFSICVMLIGSLMYASIFGNVSAIIQRLYSGTARYHTQMLRVREFIRFHQIPNPLRQRLEEYFQHAWSYTNGIDMNAVLKGFPECLQADICLHLNRSLLQHCKPFRGATKGCLRALAMKFKTTHAPPGDTLVHAGDLLTALYFISRGSIEILRGDVVVAILGKNDIFGEPLNLYARPGKSNGDVRALTYCDLHKIHRDDLLEVLDMYPEFSDHFWSSLEITFNLRDTNMIPGSPGSTELEGGFSRQRKRKLSFRRRTDKDTEQPGEVSALGPGRAGAGPSSRGRPGGPWGESPSSGPSSPESSEDEGPGRSSSPLRLVPFSSPRPPGEPPGGEPLMEDCEKSSDTCNPLSGAFSGVSNIFSFWGDSRGRQYQELPRCPAPTPSLLNIPLSSPGRRPRGDVESRLDALQRQLNRLETRLSADMATVLQLLQRQMTLVPPAYSAVTTPGPGPTSTSPLLPVSPLPTLTLDSLSQVSQFMACEELPPGAPELPQEGPTRRLSLPGQLGALTSQPLHRHGSDPGS
Organism_Source Homo sapiens
Functional_Classification Receptor
Cellular_Localization Plasma membrane
Gene_Names KCNH2
UniProt_ID Q12809
Protein-Protein Interaction Networks
Peptide Basic Information
Peptide_Name kappaO-SrVIA
Peptide_Sequence GCGVDGQFCGLPGLGLVCCRGACFLVCIYIP
Peptide_Length 31
Peptide_SMILES CC[C@H](C)[C@H](NC(=O)[C@H](CS)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CS)NC(=O)[C@H](C)NC(=O)CNC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@H](CS)NC(=O)[C@H](CS)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@@H]1CCCN1C(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@H](CS)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CCC(N)=O)NC(=O)CNC(=O)[C@H](CC(=O)O)NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](CS)NC(=O)CN)C(C)C)C(C)C)C(C)C)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@H](C(=O)N1CCC[C@H]1C(=O)O)[C@@H](C)CC
Chemical_Modification None
Cyclization_Method None
Linear/Cyclic Linear
N-terminal_Modification Free
C-terminal_Modification Free
Amino_Acid_Distribution
Peptide Physicochemical
Molecular_Weight 3134.81
Aliphatic_Index 106.77419
Aromaticity 0.09677
Average_Rotatable_Bonds 3.06452
Charge_at_pH_7 -0.37427
Isoelectric_Point 5.86990
Number_of_Hydrogen_Bond_Acceptors 42
Number_of_Hydrogen_Bond_Donors 42
Topological_Polar_Surface_Area 1081.26000
X_logP_energy -8.34503
Interaction Information
Affinity IC50=2.44 uM
Affinity_Assay NMR chemical shift perturbation
PDB_ID None
Type Inhibitor
Structure
Reference Information
Document_Type Research Articles
Title KappaO-SrVIA Conopeptide, a Novel Inhibitor Peptide for Two Members of the Human EAG Potassium Channel Family.
Release_Year 2023
PMID 37511269
DOI 10.3390/ijms241411513