compstatin   Click here for help

GtoPdb Ligand ID: 9218

Immunopharmacology Ligand
Compound class: Peptide or derivative
Comment: Compstatin is a cyclic 13 amino acid peptide inhibitor of complement component 3 (C3) [4-5]. Compstatin and analogues are being examined for immunomodulatory activity [1-2,6] in inflammatory and degenerative diseases [3].
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

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2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES CCC(C(C(=O)NC1CSSCC(NC(=O)C(CCCN=C(N)N)NC(=O)C(Cc2[nH]cnc2)NC(=O)C(NC(=O)CNC(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC1=O)C(C)C)C(C)C)CCC(=O)N)CC(=O)O)Cc1c[nH]c2c1cccc2)Cc1[nH]cnc1)C(=O)NC(C(=O)N)C(O)C)N)C
Isomeric SMILES CC[C@@H]([C@@H](C(=O)N[C@H]1CSSC[C@H](NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](Cc2[nH]cnc2)NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC1=O)C(C)C)C(C)C)CCC(=O)N)CC(=O)O)Cc1c[nH]c2c1cccc2)Cc1[nH]cnc1)C(=O)N[C@H](C(=O)N)[C@H](O)C)N)C
InChI InChI=1S/C66H99N23O17S2/c1-8-32(6)50(68)63(104)86-46-27-108-107-26-45(62(103)89-53(33(7)90)54(69)95)85-56(97)39(14-11-17-74-66(70)71)80-59(100)43(20-36-24-73-29-78-36)83-58(99)42(19-35-23-72-28-77-35)79-48(92)25-76-55(96)41(18-34-22-75-38-13-10-9-12-37(34)38)82-60(101)44(21-49(93)94)84-57(98)40(15-16-47(67)91)81-64(105)51(30(2)3)88-65(106)52(31(4)5)87-61(46)102/h9-10,12-13,22-24,28-33,39-46,50-53,75,90H,8,11,14-21,25-27,68H2,1-7H3,(H2,67,91)(H2,69,95)(H,72,77)(H,73,78)(H,76,96)(H,79,92)(H,80,100)(H,81,105)(H,82,101)(H,83,99)(H,84,98)(H,85,97)(H,86,104)(H,87,102)(H,88,106)(H,89,103)(H,93,94)(H4,70,71,74)/t32-,33+,39-,40-,41-,42-,43-,44-,45-,46-,50-,51-,52-,53-/m0/s1
InChI Key RDTRHBCZFDCUPW-KWICJJCGSA-N
References
1. Mastellos DC, Ricklin D, Hajishengallis E, Hajishengallis G, Lambris JD. (2016)
Complement therapeutics in inflammatory diseases: promising drug candidates for C3-targeted intervention.
Mol Oral Microbiol, 31 (1): 3-17. [PMID:26332138]
2. Mastellos DC, Yancopoulou D, Kokkinos P, Huber-Lang M, Hajishengallis G, Biglarnia AR, Lupu F, Nilsson B, Risitano AM, Ricklin D et al.. (2015)
Compstatin: a C3-targeted complement inhibitor reaching its prime for bedside intervention.
Eur J Clin Invest, 45 (4): 423-40. [PMID:25678219]
3. Morgan BP, Harris CL. (2015)
Complement, a target for therapy in inflammatory and degenerative diseases.
Nat Rev Drug Discov, 14 (12): 857-77. [PMID:26493766]
4. Sahu A, Kay BK, Lambris JD. (1996)
Inhibition of human complement by a C3-binding peptide isolated from a phage-displayed random peptide library.
J Immunol, 157 (2): 884-91. [PMID:8752942]
5. Sahu A, Soulika AM, Morikis D, Spruce L, Moore WT, Lambris JD. (2000)
Binding kinetics, structure-activity relationship, and biotransformation of the complement inhibitor compstatin.
J Immunol, 165 (5): 2491-9. [PMID:10946275]
6. Zhang Y, Shao D, Ricklin D, Hilkin BM, Nester CM, Lambris JD, Smith RJ. (2015)
Compstatin analog Cp40 inhibits complement dysregulation in vitro in C3 glomerulopathy.
Immunobiology, 220 (8): 993-8. [PMID:25982307]