Inhibitor of nuclear factor kappa-B kinase subunit alpha

Details

Name
Inhibitor of nuclear factor kappa-B kinase subunit alpha
Synonyms
  • 2.7.11.10
  • Conserved helix-loop-helix ubiquitous kinase
  • I-kappa-B kinase 1
  • I-kappa-B kinase alpha
  • IKK1
  • IKKA
  • NFKBIKA
  • Nuclear factor NF-kappa-B inhibitor kinase alpha
  • TCF-16
  • TCF16
  • Transcription factor 16
Gene Name
CHUK
Organism
Humans
Amino acid sequence
>lcl|BSEQ0013242|Inhibitor of nuclear factor kappa-B kinase subunit alpha
MERPPGLRPGAGGPWEMRERLGTGGFGNVCLYQHRELDLKIAIKSCRLELSTKNRERWCH
EIQIMKKLNHANVVKACDVPEELNILIHDVPLLAMEYCSGGDLRKLLNKPENCCGLKESQ
ILSLLSDIGSGIRYLHENKIIHRDLKPENIVLQDVGGKIIHKIIDLGYAKDVDQGSLCTS
FVGTLQYLAPELFENKPYTATVDYWSFGTMVFECIAGYRPFLHHLQPFTWHEKIKKKDPK
CIFACEEMSGEVRFSSHLPQPNSLCSLVVEPMENWLQLMLNWDPQQRGGPVDLTLKQPRC
FVLMDHILNLKIVHILNMTSAKIISFLLPPDESLHSLQSRIERETGINTGSQELLSETGI
SLDPRKPASQCVLDGVRGCDSYMVYLFDKSKTVYEGPFASRSLSDCVNYIVQDSKIQLPI
IQLRKVWAEAVHYVSGLKEDYSRLFQGQRAAMLSLLRYNANLTKMKNTLISASQQLKAKL
EFFHKSIQLDLERYSEQMTYGISSEKMLKAWKEMEEKAIHYAEVGVIGYLEDQIMSLHAE
IMELQKSPYGRRQGDLMESLEQRAIDLYKQLKHRPSDHSYSDSTEMVKIIVHTVQSQDRV
LKELFGHLSKLLGCKQKIIDLLPKVEVALSNIKEADNTVMFMQGKRQKEIWHLLKIACTQ
SSARSLVGSSLEGAVTPQTSAWLPPTSAEHDHSLSCVVTPQDGETSAQMIEENLNCLGHL
STIIHEANEEQGNSMMNLDWSWLTE
Number of residues
745
Molecular Weight
84638.88
Theoretical pI
Not Available
GO Classification
Functions
ATP binding / IkappaB kinase activity / protein heterodimerization activity / protein homodimerization activity / protein kinase activity / scaffold protein binding
Processes
anatomical structure morphogenesis / cell surface receptor signaling pathway / cellular response to tumor necrosis factor / epidermal growth factor receptor signaling pathway / Fc-epsilon receptor signaling pathway / fibroblast growth factor receptor signaling pathway / I-kappaB kinase/NF-kappaB signaling / I-kappaB phosphorylation / immune response / inflammatory response / innate immune response / lactation / mammary gland alveolus development / mammary gland epithelial cell proliferation / morphogenesis of an epithelial sheet / MyD88-dependent toll-like receptor signaling pathway / MyD88-independent toll-like receptor signaling pathway / neurotrophin TRK receptor signaling pathway / NIK/NF-kappaB signaling / nucleotide-binding domain, leucine rich repeat containing receptor signaling pathway / nucleotide-binding oligomerization domain containing signaling pathway / odontogenesis of dentin-containing tooth / osteoclast differentiation / phosphatidylinositol-mediated signaling / positive regulation of I-kappaB kinase/NF-kappaB signaling / positive regulation of NF-kappaB transcription factor activity / positive regulation of transcription from RNA polymerase II promoter / positive regulation of type I interferon production / protein phosphorylation / regulation of tumor necrosis factor-mediated signaling pathway / response to acetate / response to amino acid / response to drug / response to hydroperoxide / response to lipopolysaccharide / response to muscle stretch / response to toxic substance / response to virus / Rho protein signal transduction / skeletal muscle contraction / stimulatory C-type lectin receptor signaling pathway / stress-activated MAPK cascade / striated muscle cell differentiation / T cell receptor signaling pathway / toll-like receptor 10 signaling pathway / toll-like receptor 2 signaling pathway / toll-like receptor 3 signaling pathway / toll-like receptor 4 signaling pathway / toll-like receptor 5 signaling pathway / toll-like receptor 9 signaling pathway / toll-like receptor signaling pathway / toll-like receptor TLR1 / toll-like receptor TLR6 / TRIF-dependent toll-like receptor signaling pathway / tumor necrosis factor-mediated signaling pathway
Components
CD40 receptor complex / cytoplasm / cytoplasmic side of plasma membrane / cytosol / IkappaB kinase complex / intracellular membrane-bounded organelle / nucleoplasm
General Function
Scaffold protein binding
Specific Function
Serine kinase that plays an essential role in the NF-kappa-B signaling pathway which is activated by multiple stimuli such as inflammatory cytokines, bacterial or viral products, DNA damages or other cellular stresses. Acts as part of the canonical IKK complex in the conventional pathway of NF-kappa-B activation and phosphorylates inhibitors of NF-kappa-B on serine residues. These modifications allow polyubiquitination of the inhibitors and subsequent degradation by the proteasome. In turn, free NF-kappa-B is translocated into the nucleus and activates the transcription of hundreds of genes involved in immune response, growth control, or protection against apoptosis. Negatively regulates the pathway by phosphorylating the scaffold protein TAXBP1 and thus promoting the assembly of the A20/TNFAIP3 ubiquitin-editing complex (composed of A20/TNFAIP3, TAX1BP1, and the E3 ligases ITCH and RNF11). Therefore, CHUK plays a key role in the negative feedback of NF-kappa-B canonical signaling to limit inflammatory gene activation. As part of the non-canonical pathway of NF-kappa-B activation, the MAP3K14-activated CHUK/IKKA homodimer phosphorylates NFKB2/p100 associated with RelB, inducing its proteolytic processing to NFKB2/p52 and the formation of NF-kappa-B RelB-p52 complexes. In turn, these complexes regulate genes encoding molecules involved in B-cell survival and lymphoid organogenesis. Participates also in the negative feedback of the non-canonical NF-kappa-B signaling pathway by phosphorylating and destabilizing MAP3K14/NIK. Within the nucleus, phosphorylates CREBBP and consequently increases both its transcriptional and histone acetyltransferase activities. Modulates chromatin accessibility at NF-kappa-B-responsive promoters by phosphorylating histones H3 at 'Ser-10' that are subsequently acetylated at 'Lys-14' by CREBBP. Additionally, phosphorylates the CREBBP-interacting protein NCOA3. Also phosphorylates FOXO3 and may regulate this pro-apoptotic transcription factor (PubMed:15084260).
Pfam Domain Function
Transmembrane Regions
Not Available
Cellular Location
Cytoplasm
Gene sequence
>lcl|BSEQ0013243|Inhibitor of nuclear factor kappa-B kinase subunit alpha (CHUK)
ATGGAGCGGCCCCCGGGGCTGCGGCCGGGCGCGGGCGGGCCCTGGGAGATGCGGGAGCGG
CTGGGCACCGGCGGCTTCGGGAACGTCTGTCTGTACCAGCATCGGGAACTTGATCTCAAA
ATAGCAATTAAGTCTTGTCGCCTAGAGCTAAGTACCAAAAACAGAGAACGATGGTGCCAT
GAAATCCAGATTATGAAGAAGTTGAACCATGCCAATGTTGTAAAGGCCTGTGATGTTCCT
GAAGAATTGAATATTTTGATTCATGATGTGCCTCTTCTAGCAATGGAATACTGTTCTGGA
GGAGATCTCCGAAAGCTGCTCAACAAACCAGAAAATTGTTGTGGACTTAAAGAAAGCCAG
ATACTTTCTTTACTAAGTGATATAGGGTCTGGGATTCGATATTTGCATGAAAACAAAATT
ATACATCGAGATCTAAAACCTGAAAACATAGTTCTTCAGGATGTTGGTGGAAAGATAATA
CATAAAATAATTGATCTGGGATATGCCAAAGATGTTGATCAAGGAAGTCTGTGTACATCT
TTTGTGGGAACACTGCAGTATCTGGCCCCAGAGCTCTTTGAGAATAAGCCTTACACAGCC
ACTGTTGATTATTGGAGCTTTGGGACCATGGTATTTGAATGTATTGCTGGATATAGGCCT
TTTTTGCATCATCTGCAGCCATTTACCTGGCATGAGAAGATTAAGAAGAAGGATCCAAAG
TGTATATTTGCATGTGAAGAGATGTCAGGAGAAGTTCGGTTTAGTAGCCATTTACCTCAA
CCAAATAGCCTTTGTAGTTTAGTAGTAGAACCCATGGAAAACTGGCTACAGTTGATGTTG
AATTGGGACCCTCAGCAGAGAGGAGGACCTGTTGACCTTACTTTGAAGCAGCCAAGATGT
TTTGTATTAATGGATCACATTTTGAATTTGAAGATAGTACACATCCTAAATATGACTTCT
GCAAAGATAATTTCTTTTCTGTTACCACCTGATGAAAGTCTTCATTCACTACAGTCTCGT
ATTGAGCGTGAAACTGGAATAAATACTGGTTCTCAAGAACTTCTTTCAGAGACAGGAATT
TCTCTGGATCCTCGGAAACCAGCCTCTCAATGTGTTCTAGATGGAGTTAGAGGCTGTGAT
AGCTATATGGTTTATTTGTTTGATAAAAGTAAAACTGTATATGAAGGGCCATTTGCTTCC
AGAAGTTTATCTGATTGTGTAAATTATATTGTACAGGACAGCAAAATACAGCTTCCAATT
ATACAGCTGCGTAAAGTGTGGGCTGAAGCAGTGCACTATGTGTCTGGACTAAAAGAAGAC
TATAGCAGGCTCTTTCAGGGACAAAGGGCAGCAATGTTAAGTCTTCTTAGATATAATGCT
AACTTAACAAAAATGAAGAACACTTTGATCTCAGCATCACAACAACTGAAAGCTAAATTG
GAGTTTTTTCACAAAAGCATTCAGCTTGACTTGGAGAGATACAGCGAGCAGATGACGTAT
GGGATATCTTCAGAAAAAATGCTAAAAGCATGGAAAGAAATGGAAGAAAAGGCCATCCAC
TATGCTGAGGTTGGTGTCATTGGATACCTGGAGGATCAGATTATGTCTTTGCATGCTGAA
ATCATGGAGCTACAGAAGAGCCCCTATGGAAGACGTCAGGGAGACTTGATGGAATCTCTG
GAACAGCGTGCCATTGATCTATATAAGCAGTTAAAACACAGACCTTCAGATCACTCCTAC
AGTGACAGCACAGAGATGGTGAAAATCATTGTGCACACTGTGCAGAGTCAGGACCGTGTG
CTCAAGGAGCTGTTTGGTCATTTGAGCAAGTTGTTGGGCTGTAAGCAGAAGATTATTGAT
CTACTCCCTAAGGTGGAAGTGGCCCTCAGTAATATCAAAGAAGCTGACAATACTGTCATG
TTCATGCAGGGAAAAAGGCAGAAAGAAATATGGCATCTCCTTAAAATTGCCTGTACACAG
AGTTCTGCCCGGTCCCTTGTAGGATCCAGTCTAGAAGGTGCAGTAACCCCTCAGACATCA
GCATGGCTGCCCCCGACTTCAGCAGAACATGATCATTCTCTGTCATGTGTGGTAACTCCT
CAAGATGGGGAGACTTCAGCACAAATGATAGAAGAAAATTTGAACTGCCTTGGCCATTTA
AGCACTATTATTCATGAGGCAAATGAGGAACAGGGCAATAGTATGATGAATCTTGATTGG
AGTTGGTTAACAGAATGA
Chromosome Location
10
Locus
Not Available
External Identifiers
ResourceLink
UniProtKB IDO15111
UniProtKB Entry NameIKKA_HUMAN
HGNC IDHGNC:1974
General References
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Drug Relations

Drug Relations
DrugBank IDNameDrug groupPharmacological action?ActionsDetails
DB00244MesalazineapprovedunknowninhibitorDetails
DB00233Aminosalicylic acidapprovedunknowninhibitorDetails
DB06151Acetylcysteineapproved, investigationalunknowninhibitorDetails
DB00795SulfasalazineapprovedunknownDetails