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These data suggest the existence of a negative feedback loop involving Akt/PKB (show AKT1 Proteins) that might act as a sensor to modulate TBP-1 levels in proliferating cells.
19S ATPase S6b (S6'/TBP1) binds CIITApIV in an S6a-dependent fashion and has effects similar to S6a on CIITApIV histone acetylation.
role in E3 ubiquitin ligase (show MUL1 Proteins) function of the von Hippel-Lindau protein (show VHLL Proteins)
molecular modeling of DNA:TATA element binding protein (TBP (show TBP Proteins)) interactions after treatment with 2-Chloro-2'-deoxyadenosine
Tat-binding protein-1 binds to human ARF tumor suppressor and has a role in control of cell proliferation
In normal cells, unmodified S12 (show HTR1B Proteins) associates with the 26S proteasome (show Psmd4 Proteins), while modified S12 (show HTR1B Proteins)-M does not.
The stabilization effect exerted by TBP-1 requires an intact N-terminal 39 amino acids in ARF and occurs independently from N-terminal ubiquitination of the protein.
findings suggest that a component of 19S regulatory particles directly binds AR and might participate in AR-mediated transcriptional activation in cooperation with TBPIP (show PSMC3IP Proteins).
reveal critical roles of COOH termini of Rpt subunits of PA700 in the assembly and activation of eukaryotic 26 S proteasome[PA700 proteasome activator ]
The equine homologues of OS-9 (show OS9 Proteins) and PSMC3 were cloned and their interactions with equine infectious anemia virus S2 protein confirmed using co-immunoprecipitation assays.
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits\; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes one of the ATPase subunits, a member of the triple-A family of ATPases that have chaperone-like activity. This subunit may compete with PSMC2 for binding to the HIV tat protein to regulate the interaction between the viral protein and the transcription complex. A pseudogene has been identified on chromosome 9.
26S protease regulatory subunit 6A
, 26S proteasome AAA-ATPase subunit RPT5
, Tat-binding protein 1
, human immunodeficiency virus tat transactivator binding protein-1
, proteasome 26S subunit ATPase 3
, proteasome subunit P50
, TAT-binding protein 1
, Tat binding protein 1
, spermatogenic cell/sperm-associated TAT-binding protein homolog SATA
, 26S protease regulatory subunit 6a
, proteasome (prosome, macropain) 26S subunit, ATPase, 3
, proteasome 26S ATPase subunit 3
, 26S protease regulatory subunit 6A-like
, 26S proteasome ATPase 3 subunit
, 26S protease regulatory subunit 6A-B
, 26S proteasome AAA-ATPase subunit RPT5-B
, TAT-binding protein 10
, proteasome 26S subunit ATPase 3-B