PPIPT01411

Target Protein Information
Protein_Name C4b-binding protein alpha chain
Protein_Sequence MHPPKTPSGALHRKRKMAAWPFSRLWKVSDPILFQMTLIAALLPAVLGNCGPPPTLSFAAPMDITLTETRFKTGTTLKYTCLPGYVRSHSTQTLTCNSDGEWVYNTFCIYKRCRHPGELRNGQVEIKTDLSFGSQIEFSCSEGFFLIGSTTSRCEVQDRGVGWSHPLPQCEIVKCKPPPDIRNGRHSGEENFYAYGFSVTYSCDPRFSLLGHASISCTVENETIGVWRPSPPTCEKITCRKPDVSHGEMVSGFGPIYNYKDTIVFKCQKGFVLRGSSVIHCDADSKWNPSPPACEPNSCINLPDIPHASWETYPRPTKEDVYVVGTVLRYRCHPGYKPTTDEPTTVICQKNLRWTPYQGCEALCCPEPKLNNGEITQHRKSRPANHCVYFYGDEISFSCHETSRFSAICQGDGTWSPRTPSCGDICNFPPKIAHGHYKQSSSYSFFKEEIIYECDKGYILVGQAKLSCSYSHWSAPAPQCKALCRKPELVNGRLSVDKDQYVEPENVTIQCDSGYGVVGPQSITCSGNRTWYPEVPKCEWETPEGCEQVLTGKRLMQCLPNPEDVKMALEVYKLSLEIEQLELQRDSARQSTLDKEL
Organism_Source Homo sapiens
Functional_Classification Complement regulatory protein
Cellular_Localization Extracellular
Gene_Names C4BPA
UniProt_ID P04003
Protein-Protein Interaction Networks
Peptide Basic Information
Peptide_Name PSP-424K*
Peptide_Sequence SGIKKIIQEKQNKC
Peptide_Length 14
Peptide_SMILES CC[C@H](C)[C@H](NC(=O)CNC(=O)[C@@H](N)CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)O)[C@@H](C)CC)[C@@H](C)CC
Chemical_Modification None
Cyclization_Method None
Linear/Cyclic Cyclic
N-terminal_Modification Free
C-terminal_Modification Amide
Amino_Acid_Distribution
Peptide Physicochemical
Molecular_Weight 1616.94
Aliphatic_Index 83.57143
Aromaticity 0.00000
Average_Rotatable_Bonds 4.42857
Charge_at_pH_7 2.93660
Isoelectric_point 10.34123
Number_of_Hydrogen_Bond_Acceptors 25
Number_of_Hydrogen_Bond_Donors 25
Topological_Polar_Surface_Area 732.50000
X_logP_energy -7.82030
Interaction Information
Affinity IC50=50 uM
Affinity_Assay Enzyme Inhibition Kinetics
PDB_ID None
Type Inhibitor
Structure
Reference Information
Document_Type Patent
Title Protein S polypeptides and anti-peptide antibodies that inhibit protein S binding to C4b binding protein, diagnostic systems and therapeutic methods
Release_Year 1993
Patent_ID EP0524737A2