UniProt functional annotation for Q04863



	UniProt functional annotation for Q04863

UniProt code: Q04863.

Organism: Mus musculus (Mouse).

Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus.

Function: NF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post- translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I- kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric RelB-p50 and RelB-p52 complexes are transcriptional activators. RELB neither associates with DNA nor with RELA/p65 or REL. Stimulates promoter activity in the presence of NFKB2/p49 (By similarity). As a member of the NUPR1/RELB/IER3 survival pathway, may allow the development of pancreatic intraepithelial neoplasias. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK- ARNTL/BMAL1 heterodimer in a CRY1/CRY2 independent manner. Increased repression of the heterodimer is seen in the presence of NFKB2/p52. Is required for both T and B lymphocyte maturation and function (By similarity). {ECO:0000250|UniProtKB:Q01201, ECO:0000269|PubMed:22565310, ECO:0000269|PubMed:22894897}.

Subunit: Component of the NF-kappa-B RelB-p50 complex. Component of the NF-kappa-B RelB-p52 complex (By similarity). Self-associates; the interaction seems to be transient and may prevent degradation allowing for heterodimer formation p50 or p52. Interacts with NFKB1/p50, NFKB2/p52 and NFKB2/p100. Interacts with NFKBID. Interacts with ARNTL/BMAL1 and the interaction is enhanced in the presence of CLOCK. {ECO:0000250, ECO:0000269|PubMed:11931770, ECO:0000269|PubMed:12874295, ECO:0000269|PubMed:17869269, ECO:0000269|PubMed:22894897}.

Subcellular location: Nucleus. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome {ECO:0000250}. Note=Colocalizes with NEK6 in the centrosome. {ECO:0000250}.

Tissue specificity: Expressed in intestine, thymus and spleen. Undetectable in liver, bome marrow, kidney and testis.

Domain: Both N- and C-terminal domains are required for transcriptional activation.

Ptm: Phosphorylation at 'Thr-103' and 'Ser-573' is followed by proteasomal degradation. {ECO:0000269|PubMed:11781828}.

Annotations taken from UniProtKB at the EBI.


Organism:		Mus musculus (Mouse).
Taxonomy:		Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus.



Function:		NF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post- translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I- kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric RelB-p50 and RelB-p52 complexes are transcriptional activators. RELB neither associates with DNA nor with RELA/p65 or REL. Stimulates promoter activity in the presence of NFKB2/p49 (By similarity). As a member of the NUPR1/RELB/IER3 survival pathway, may allow the development of pancreatic intraepithelial neoplasias. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK- ARNTL/BMAL1 heterodimer in a CRY1/CRY2 independent manner. Increased repression of the heterodimer is seen in the presence of NFKB2/p52. Is required for both T and B lymphocyte maturation and function (By similarity). {ECO:0000250\|UniProtKB:Q01201, ECO:0000269\|PubMed:22565310, ECO:0000269\|PubMed:22894897}.


Subunit:		Component of the NF-kappa-B RelB-p50 complex. Component of the NF-kappa-B RelB-p52 complex (By similarity). Self-associates; the interaction seems to be transient and may prevent degradation allowing for heterodimer formation p50 or p52. Interacts with NFKB1/p50, NFKB2/p52 and NFKB2/p100. Interacts with NFKBID. Interacts with ARNTL/BMAL1 and the interaction is enhanced in the presence of CLOCK. {ECO:0000250, ECO:0000269\|PubMed:11931770, ECO:0000269\|PubMed:12874295, ECO:0000269\|PubMed:17869269, ECO:0000269\|PubMed:22894897}.
Subcellular location:		Nucleus. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome {ECO:0000250}. Note=Colocalizes with NEK6 in the centrosome. {ECO:0000250}.
Tissue specificity:		Expressed in intestine, thymus and spleen. Undetectable in liver, bome marrow, kidney and testis.
Domain:		Both N- and C-terminal domains are required for transcriptional activation.
Ptm:		Phosphorylation at 'Thr-103' and 'Ser-573' is followed by proteasomal degradation. {ECO:0000269\|PubMed:11781828}.