Target type: cellularcomponent
A protein complex containing an inhibitory-kappaB (I-kappaB/IKB) protein and one or more copies of an NF-kappaB protein. In the resting state, NF-kappaB dimers are bound to I-kappaB proteins, sequestering NF-kappaB in the cytoplasm. [GOC:bf, GOC:mah, PMID:9407099]
The IκB/NF-κB complex is a key regulator of gene expression in response to various stimuli, including inflammation, stress, and infection. The cellular component of this complex is composed of two main protein families: NF-κB and IκB.
NF-κB proteins are transcription factors that can activate the transcription of target genes by binding to specific DNA sequences. There are five different NF-κB proteins in mammals: p65 (RelA), RelB, c-Rel, p50 (NF-κB1), and p52 (NF-κB2). These proteins can form homo- or heterodimers.
IκB proteins are inhibitory proteins that bind to and sequester NF-κB proteins in the cytoplasm. The major IκB proteins are IκBα, IκBβ, and IκBε.
In resting cells, NF-κB proteins are bound to IκB proteins in the cytoplasm, which prevents NF-κB from entering the nucleus and activating gene transcription. Upon stimulation, IκB is phosphorylated by the IκB kinase (IKK) complex, leading to its ubiquitination and degradation by the proteasome. This allows NF-κB to translocate into the nucleus, where it can bind to DNA and activate the transcription of target genes.
The cellular localization of the IκB/NF-κB complex is dynamic and is regulated by various factors. In resting cells, the complex is predominantly located in the cytoplasm. Upon stimulation, the complex translocates to the nucleus, where it can activate gene transcription.
The cellular component of the IκB/NF-κB complex is essential for the regulation of a wide range of cellular processes, including inflammation, immunity, cell growth, and apoptosis. Dysregulation of this complex can lead to various diseases, such as cancer, autoimmune disorders, and inflammatory diseases.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| NF-kappa-B inhibitor alpha | An NF-kappa-B inhibitor alpha that is encoded in the genome of human. [TLR:AMM, UniProtKB:P25963] | Homo sapiens (human) |
| Nuclear factor NF-kappa-B p105 subunit | A nuclear factor NF-kappa-B p105 subunit that is encoded in the genome of human. [PRO:DNx] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| beta-lapachone | beta-lapachone : A benzochromenone that is 3,4-dihydro-2H-benzo[h]chromene-5,6-dione substituted by geminal methyl groups at position 2. Isolated from Tabebuia avellanedae, it exhibits antineoplastic and anti-inflammatory activities. beta-lapachone: antineoplastic inhibitor of reverse transcriptase, DNA topoisomerase, and DNA polymerase | benzochromenone; orthoquinones | anti-inflammatory agent; antineoplastic agent; plant metabolite |
| phloretin | dihydrochalcones | antineoplastic agent; plant metabolite | |
| aurin | aurin: structure | diarylmethane | |
| sanguinarine | benzophenanthridine alkaloid : A specific group of isoquinoline alkaloids that occur only in higher plants and are constituents mainly of the Papaveraceae family. | alkaloid antibiotic; benzophenanthridine alkaloid; botanical anti-fungal agent | |
| ficusin | Ficusin: A naturally occurring furocoumarin, found in PSORALEA. After photoactivation with UV radiation, it binds DNA via single and double-stranded cross-linking. psoralen : The simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia. | psoralens | plant metabolite |
| gibberellic acid | gibberellic acid: RN given refers to (1alpha,2beta,4aalpha,4bbeta,10beta)-isomer; structure gibberellin A3 : A C19-gibberellin that is a pentacyclic diterpenoid responsible for promoting growth and elongation of cells in plants. Initially identified in Gibberella fujikuroi,it differs from gibberellin A1 in the presence of a double bond between C-3 and C-4. | C19-gibberellin; gibberellin monocarboxylic acid; lactone; organic heteropentacyclic compound | mouse metabolite; plant metabolite |
| evans blue | Evans blue : An organic sodium salt that is the tetrasodium salt of 6,6'-{(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[diazene-2,1-diyl]}bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate). It is sometimes used as a counterstain, especially in fluorescent methods to suppress background autofluorescence. Evans Blue: An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly. | organic sodium salt | fluorochrome; histological dye; sodium channel blocker; teratogenic agent |
| angelicin | angelicin: used as tranquillizer; sedative; or anticonvulsant; structure | furanocoumarin | |
| helenalin | helenalin : A sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer). helenalin: toxic principle of Helenium microcephalum (smallhead sneezeweed); structure NF-kappaB inhibitor : An inhibitor of NF-kappaB (nuclear factor kappa-light-chain-enhancer of activated B cells), a protein complex involved in the transcription of DNA. | cyclic ketone; gamma-lactone; organic heterotricyclic compound; secondary alcohol; sesquiterpene lactone | anti-inflammatory agent; antineoplastic agent; metabolite; plant metabolite |
| pyrrolidine dithiocarbamate | pyrrolidine dithiocarbamate : A member of the class of dithiocarbamic acids that is the N-dithiocarboxy derivative of pyrrolidine. pyrrolidine dithiocarbamic acid: spelled pyrolidine in J Nutr 1979 reference; RN given refers to parent cpd | dithiocarbamic acids; pyrrolidines | anticonvulsant; antineoplastic agent; geroprotector; neuroprotective agent; NF-kappaB inhibitor; radical scavenger |
| dehydroleucodine | dehydroleucodine: has antimicrobial activity; RN given refers to (3aS-(3aalpha,9aalpha,9bbeta))-isomer | ||
| altersolanol a | altersolanol A: isolated from fermentation product of fungus Alternaria porri(Ellis) Ciferri;RN given refers to (1R-(1alpha,2beta,3beta,4alpha))-isomer; structure given in first source | pentahydroxyanthraquinone | |
| Mexicanin I | sesquiterpene lactone | ||
| tetrahydrocurcumin | tetrahydrocurcumin : A beta-diketone that is curcumin in which both of the double bonds have been reduced to single bonds. | beta-diketone; diarylheptanoid; polyphenol | metabolite |
| 8-(4-benzenesulfonylamino)quinoline | 8-(4-benzenesulfonylamino)quinoline: has diabetogenic properties; structure given in first source | ||
| withanolide d | withanolide D : A withanolide that is 5,6:22,26-diepoxyergosta-2,24-diene-1,26-dione substituted by hydroxy groups at positions 4 and 22 (the 4beta,5beta,6beta,22R stereoisomer). Isolated from Tubocapsicum anomalum and Withania somnifera, it exhibits cytotoxic activity. withanolide D: structure | 20-hydroxy steroid; 4-hydroxy steroid; delta-lactone; enone; epoxy steroid; ergostanoid; secondary alcohol; tertiary alcohol; withanolide | antineoplastic agent |
| arnicolide d | arnicolide D: cytotoxic; from Centipeda minima L.; structure in first source | sesquiterpene lactone | |
| santamarine | santamarin : A sesquiterpene lactone of the eudesmanolide group. santamarine: sesquiterpene derivative of costunolide | sesquiterpene lactone | |
| withaferin a | withaferin A : A withanolide that is 5,6:22,26-diepoxyergosta-2,24-diene-1,26-dione substituted by hydroxy groups at positions 4 and 27 (the 4beta,5beta,6beta,22R stereoisomer). Isolated from Physalis longifolia, it exhibits cytotoxic activity. withaferin A: an antiestrogen and phytogenic antineoplastic agent isolated from leaves of Withania somnifera Dun.; structure | 27-hydroxy steroid; 4-hydroxy steroid; delta-lactone; enone; epoxy steroid; ergostanoid; primary alcohol; secondary alcohol; withanolide | antineoplastic agent; apoptosis inducer |
| rocaglamide | rocaglamide : An organic heterotricyclic compound that is 2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan substituted by hydroxy groups at positions 1 and 8b, methoxy groups at positions 6 and 8, a 4-methoxyphenyl group at position 3a, a phenyl group at position 3 and a N,N-dimethylcarbamoyl group at position 1. Isolated from Aglaia odorata and Aglaia duperreana, it exhibits antineoplastic activity. rocaglamide: RN refers to (1alpha,2alpha,3beta,3abeta,8bbeta)-isomer; isolated from stems of Aglaia elliptifolia; structure given in first source | monocarboxylic acid amide; monomethoxybenzene; organic heterotricyclic compound | antileishmanial agent; antineoplastic agent; metabolite |
| bortezomib | amino acid amide; L-phenylalanine derivative; pyrazines | antineoplastic agent; antiprotozoal drug; protease inhibitor; proteasome inhibitor | |
| 8-deoxygartanin | 8-deoxygartanin: a butyrylcholinesterase inhibitor; isolated from Garcinia mangostana; structure in first source | xanthones | |
| tosylphenylalanyl chloromethyl ketone | N-tosyl-L-phenylalanyl chloromethyl ketone : The N-tosyl derivative of L-phenylalanyl chloromethyl ketone. Tosylphenylalanyl Chloromethyl Ketone: An inhibitor of Serine Endopeptidases. Acts as alkylating agent and is known to interfere with the translation process. | alpha-chloroketone; sulfonamide | alkylating agent; serine proteinase inhibitor |
| 11alpha,13-dihydrohelenalin | sesquiterpene lactone | ||
| resveratrol | trans-resveratrol : A resveratrol in which the double bond has E configuration. | resveratrol | antioxidant; phytoalexin; plant metabolite; quorum sensing inhibitor; radical scavenger |
| benzyloxycarbonylleucyl-leucyl-leucine aldehyde | benzyloxycarbonylleucyl-leucyl-leucine aldehyde: proteasome inhibitor N-benzyloxycarbonyl-L-leucyl-L-leucyl-L-leucinal : A tripeptide that is L-leucyl-L-leucyl-L-leucine in which the C-terminal carboxy group has been reduced to the corresponding aldehyde and the N-terminal amino group is protected as its benzyloxycarbonyl derivative. | amino aldehyde; carbamate ester; tripeptide | proteasome inhibitor |
| 2-hydroxycinnamic acid | 2-coumaric acid : A monohydroxycinnamic acid in which the hydroxy substituent is located at C-2 of the phenyl ring. trans-2-coumaric acid : The trans-isomer of 2-coumaric acid. | 2-coumaric acid; phenols | antioxidant; metabolite |
| isoliquiritigenin | chalcones | antineoplastic agent; biological pigment; EC 1.14.18.1 (tyrosinase) inhibitor; GABA modulator; geroprotector; metabolite; NMDA receptor antagonist | |
| xanthohumol | xanthohumol : A member of the class of chalcones that is trans-chalcone substituted by hydroxy groups at positions 4, 2' and 4', a methoxy group at position 6' and a prenyl group at position 3'. Isolated from Humulus lupulus, it induces apoptosis in human malignant glioblastoma cells. xanthohumol: from hop plant, Humulus lupulus | aromatic ether; chalcones; polyphenol | anti-HIV-1 agent; antineoplastic agent; antiviral agent; apoptosis inducer; EC 2.3.1.20 (diacylglycerol O-acyltransferase) inhibitor; metabolite |
| 5H-quinolino[8,7-c][1,2]benzothiazine 6,6-dioxide | benzothiazine | ||
| parthenolide, (1ar-(1ar*,4e,7as*,10as*,10br*))-isomer | germacranolide | ||
| 3-(3-fluoro-4-methoxyphenyl)-5-phenyl-7-furo[3,2-g][1]benzopyranone | diarylheptanoid | ||
| hymecromone | Hymecromone: A coumarin derivative possessing properties as a spasmolytic, choleretic and light-protective agent. It is also used in ANALYTICAL CHEMISTRY TECHNIQUES for the determination of NITRIC ACID. | hydroxycoumarin | antineoplastic agent; hyaluronic acid synthesis inhibitor |
| lipoxin a4 | lipoxin A4 : A C20 hydroxy fatty acid having (5S)-, (6R)- and (15S)-hydroxy groups as well as (7E)- (9E)-, (11Z)- and (13E)-double bonds. lipoxin A4: an antifibrolytic agent; structure given in first source; a role in ASPIRIN antiinflammatory activity | hydroxy polyunsaturated fatty acid; lipoxin; long-chain fatty acid | human metabolite; metabolite |
| butein | chalcones; polyphenol | antineoplastic agent; antioxidant; EC 1.1.1.21 (aldehyde reductase) inhibitor; geroprotector; hypoglycemic agent; plant metabolite; radiosensitizing agent; tyrosine kinase inhibitor | |
| molephantinin | molephantinin: germacranolide from Elephantopus mollis; RN given refers to (3aR-(3aR*,4S*(E),6E,9Z,11S*,11aS*))-isomer; structure in first source | germacranolide | |
| gartanin | gartanin : A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 5 and 8 and prenyl groups at positions 2 and 4. | polyphenol; xanthones | antineoplastic agent; plant metabolite |
| mangostin | alpha-mangostin : A member of the class of xanthones that is 9H-xanthene substituted by hydroxy group at positions 1, 3 and 6, a methoxy group at position 7, an oxo group at position 9 and prenyl groups at positions 2 and 8. Isolated from the stems of Cratoxylum cochinchinense, it exhibits antioxidant, antimicrobial and antitumour activities. mangostin: xanthone from rind of Garcinia mangostana Linn. fruit | aromatic ether; phenols; xanthones | antimicrobial agent; antineoplastic agent; antioxidant; plant metabolite |
| 4-hydroxychalcone | 4-hydroxychalcone : A member of the class of chalcones that is trans-chalcone substituted by a hydroxy group at position 4. 4-hydroxychalcone: structure in first source | chalcones; phenols | antihypertensive agent; plant metabolite |
| andrographolide | carbobicyclic compound; gamma-lactone; labdane diterpenoid; primary alcohol; secondary alcohol | anti-HIV agent; anti-inflammatory drug; antineoplastic agent; metabolite | |
| bay 11-7082 | (E)-3-tosylacrylonitrile : A nitrile that is acrylonitrile in which the hydrogen located beta,trans to the cyano group is replaced by a tosyl group. It is an inhibitor of cytokine-induced IkappaB-alpha phosphorylation in cells. | nitrile; sulfone | apoptosis inducer; EC 2.7.11.10 (IkappaB kinase) inhibitor; EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor; non-steroidal anti-inflammatory drug; platelet aggregation inhibitor |
| furanoheliangolide | furanoheliangolide: structure in first source | ||
| beta-Mangostin | xanthones | ||
| 9-Hydroxycalabaxanthone | xanthones | ||
| flavokawain C | flavokawain C: antineoplastic from roots of Kava (Piper methysticum Forst); structure in first source | chalcones | |
| rehmannic acid | rehmannic acid: toxic principle, triterpene acid from Lantana camara; RN given refers to (22beta-(Z))-isomer; structure | ||
| 3-o-methylbutein | 3-O-methylbutein: RN given refers to (E)-isomer; structure given in first source | chalcones | |
| goniothalamin | goniothalamin: has antineoplastic activity; structure given in first source | ||
| hylin | |||
| spc-839 | SPC-839: an inhibitor of activator protein 1; structure in first source | ||
| sp 100030 | N-(3,5-bis(trifluoromethyl)phenyl)-2-chloro-4-(trifluoromethyl)pyrimidine-5-carboxamide: transcription factor inhibitor specific to T-cells | ||
| cumambrin b | cumambrin B: RN given for (3aR-(3aalpha,4alpha,6alpha,6aalpha,9aalpha,9bbeta))-isomer; isolated from Chrysanthemum boreale; structure in first source | ||
| Cycloartobiloxanthone | cycloartobiloxanthone: a flavonoid isolated from stem bark of Artocarpus gomezianus; has antineoplastic properties | pyranoxanthones | |
| 6-hydroxy-7-methoxychroman-2-carboxylic acid phenylamide | 6-hydroxy-7-methoxychroman-2-carboxylic acid phenylamide: structure in first souce | ||
| nsc-287088 | |||
| lantadene b | lantadene B: RN given refers to the (22beta)-isomer; from Lantana camara | ||
| achalensolide | achalensolide: structure in first source | ||
| physalin a | physalin A: an anti-inflammatory agent isolated from Physalis alkekengi var; structure in first source | physalin | |
| 2,3-dihydro-3beta-O-sulfate withaferin A | 2,3-dihydro-3beta-O-sulfate withaferin A : A withanolide that is 2,3-dihydrowithaferin A substituted by a sulfoxy group at position 3. Isolated from Physalis longifolia, it exhibits antineoplastic activity. | 27-hydroxy steroid; 4-hydroxy steroid; delta-lactone; epoxy steroid; ergostanoid; primary alcohol; steroid sulfate; withanolide | antineoplastic agent; metabolite; plant metabolite |
| physalin f | physalin F : A physalin with antimalarial and antitumour activities isolated from Physalis angulata. physalin F: has immunosuppressive activity; from Physalis angulata L; structure given in first source | enone; epoxy steroid; lactone; physalin | antileishmanial agent; antimalarial; antineoplastic agent; apoptosis inducer; immunosuppressive agent |
| chrome azurol s | chrome azurol S: reagent for beryllium determination spectrophotometrically | ||
| hydrazinocurcumin | hydrazinocurcumin : A pyrazole obtained by cyclocodensation of the two carbonyl groups of curcumin with hydrazine. hydrazinocurcumin: structure in first source | aromatic ether; olefinic compound; polyphenol; pyrazoles | angiogenesis modulating agent; antineoplastic agent; EC 2.3.1.48 (histone acetyltransferase) inhibitor; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor |