| Tbio | 26S protease regulatory subunit 6A |
The 26S protease is involved in the ATP-dependent degradation of ubiquitinated proteins. The regulatory (or ATPase) complex confers ATP dependency and substrate specificity to the 26S complex (By similarity). In case of HIV-1 infection, suppresses Tat-mediated transactivation.
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. [provided by RefSeq, Jul 2008]
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. [provided by RefSeq, Jul 2008]
Comments
Property Summary
| NCBI Gene PubMed Count | 69 |
| Grant Count | 7 |
| Funding | $169,217.25 |
| PubMed Score | 18.49 |
| PubTator Score | 20.37 |
| Disease | log2 FC | p |
|---|---|---|
| Multiple myeloma | 1.182 | 0.001 |
| lung cancer | 1.100 | 0.002 |
| subependymal giant cell astrocytoma | -1.255 | 0.049 |
| ovarian cancer | 1.300 | 0.002 |
| PMID | Text |
|---|---|
| 21991300 | These data suggest the existence of a negative feedback loop involving Akt/PKB that might act as a sensor to modulate TBP-1 levels in proliferating cells. |
| 19853614 | 19S ATPase S6b (S6'/TBP1) binds CIITApIV in an S6a-dependent fashion and has effects similar to S6a on CIITApIV histone acetylation. |
| 19325002 | findings suggest that a component of 19S regulatory particles directly binds AR and might participate in AR-mediated transcriptional activation in cooperation with TBPIP. |
| 18854154 | Knockdown of proteasome (prosome, macropain) 26S subunit, ATPase, 3 (PSMC3) by siRNA inhibits the early stages of HIV-1 replication in 293T cells infected with VSV-G pseudotyped HIV-1 |
| 17649721 | Heplipin induced KG-1 cell apoptosis is related with Wntl3 and ATPase3. |
| 17334400 | 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. |
| 15221960 | In normal cells, unmodified S12 associates with the 26S proteasome, while modified S12-M does not. |
| 14665636 | Tat-binding protein-1 binds to human ARF tumor suppressor and has a role in control of cell proliferation |
| 14614829 | HIV-1 Vif binds to the cellular cytidine deaminase APOBEC3G and targets it for degradation through an interaction with the proteasome, thereby inhibiting APOBEC3G mediated restriction of HIV-1 replication |
| 14610662 | molecular modeling of DNA:TATA element binding protein (TBP) interactions after treatment with 2-Chloro-2'-deoxyadenosine |
| More... |
MNLLPNIESPVTRQEKMATVWDEAEQDGIGEEVLKMSTEEIIQRTRLLDSEIKIMKSEVLRVTHELQAMK 1 - 70 DKIKENSEKIKVNKTLPYLVSNVIELLDVDPNDQEEDGANIDLDSQRKGKCAVIKTSTRQTYFLPVIGLV 71 - 140 DAEKLKPGDLVGVNKDSYLILETLPTEYDSRVKAMEVDERPTEQYSDIGGLDKQIQELVEAIVLPMNHKE 141 - 210 KFENLGIQPPKGVLMYGPPGTGKTLLARACAAQTKATFLKLAGPQLVQMFIGDGAKLVRDAFALAKEKAP 211 - 280 SIIFIDELDAIGTKRFDSEKAGDREVQRTMLELLNQLDGFQPNTQVKVIAATNRVDILDPALLRSGRLDR 281 - 350 KIEFPMPNEEARARIMQIHSRKMNVSPDVNYEELARCTDDFNGAQCKAVCVEAGMIALRRGATELTHEDY 351 - 420 MEGILEVQAKKKANLQYYA 421 - 439 //
| PMID | Year | Title |
|---|---|---|
| 25416956 | 2014 | A proteome-scale map of the human interactome network. |
| 24275569 | 2014 | An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome. |
| 24255178 | 2013 | Protein interaction network of the mammalian Hippo pathway reveals mechanisms of kinase-phosphatase interactions. |
| 23563607 | 2013 | Genome-wide meta-analysis identifies 11 new loci for anthropometric traits and provides insights into genetic architecture. |
| 23186163 | 2013 | Toward a comprehensive characterization of a human cancer cell phosphoproteome. |
| 23022100 | 2012 | Discovery and fine mapping of serum protein loci through transethnic meta-analysis. |
| 22814378 | 2012 | N-terminal acetylome analyses and functional insights of the N-terminal acetyltransferase NatB. |
| 21991300 | 2011 | A regulatory mechanism involving TBP-1/Tat-Binding Protein 1 and Akt/PKB in the control of cell proliferation. |
| 21630459 | 2011 | Proteomic characterization of the human sperm nucleus. |
| 21406692 | 2011 | System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation. |
| More... |
