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PSMD7  -  proteasome (prosome, macropain) 26S...

Homo sapiens

Synonyms: 26S proteasome non-ATPase regulatory subunit 7, 26S proteasome regulatory subunit RPN8, 26S proteasome regulatory subunit S12, MOV34, MOV34L, ...
 
 
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Disease relevance of PSMD7

  • HIV-1 Vpr interacts with a human 34-kDa mov34 homologue, a cellular factor linked to the G2/M phase transition of the mammalian cell cycle [1].
  • Previously we showed in Salmonella typhimurium that the fitness cost, i.e. reduced growth rate, due to the amino acid substitution K42N in S12 could be compensated by at least 35 different mutations located in the ribosomal proteins S4, S5 and L19 [2].
  • IS1626 was detected by high-stringency hybridization with the pMB22/S12 probe from IS900 of Mycobacterium paratuberculosis [3].
  • Effects of electron donors and acceptors on anaerobic reduction of azo dyes by Shewanella decolorationis S12 [4].
  • The sigmaB/sigmaC-encoding genes of muscovy duck reovirus (DRV) S12 strain were cloned, sequenced, and expressed in Escherichia coli [5].
 

High impact information on PSMD7

  • We have cloned a candidate Vpr ligand, termed human Vpr interacting protein (hVIP/MOV34), by using a yeast two-hybrid assay [1].
  • 99mTc S12 monoclonal Fab' antibody imaging permits noninvasive identification of local vascular platelet activation resulting from angioplasty balloon injury in humans [6].
  • A pan-edited ribosomal protein, S12, and a novel 3'- and 5'-edited cytochrome b, in addition to an unedited cytochrome oxidase III gene and an apparently unedited 12S rRNA gene, were found in a 6-kb fragment of the 80- to 90-kb mitochondrial genome [7].
  • Over this time, there was a progressive increase in the amount of PAC1, 9F9, and S12 bound to platelets in blood emerging from the bleeding time wound [8].
  • On the other hand, a concentration of phorbol myristate acetate (TPA) that evokes full platelet aggregation and secretion induced maximal PAC1 and S12 binding [9].
 

Chemical compound and disease context of PSMD7

 

Biological context of PSMD7

  • The MOV34 family includes proteins that function as transcriptional and proteolytic regulators of cell growth and differentiation [1].
  • Modified and unmodified S12 have similar mass, but different isoelectric points, consistent with phosphorylation [11].
  • However, cross-reactions were observed with at least one mitochondrial ribosomal protein displaying a higher molecular weight than S12 [12].
  • When separated from the resistance mutation located in S12, the three different compensatory amino acid substitutions in L19 at position 40 (Q40H, Q40L and Q40R) caused a decrease in fitness while the G104A change had no effect on bacterial growth [2].
  • While integration of the viral genome into the host DNA contributes to the difference between W12 and S12 cells, integration by itself is not sufficient to explain this difference [13].
 

Anatomical context of PSMD7

  • Immunochemical accessibility of ribosomal protein S4 in the 30 S ribosome. The interaction of S4 with S5 and S12 [14].
  • Post-translationally modified S12, absent in transformed breast epithelial cells, is not associated with the 26S proteasome and is induced by proteasome inhibitor [11].
  • Whereas transformed cell line nuclei contain neither S12 isoform, S12-M is predominantly cytosolic in normal cells, with the unmodified S12 present in both the nuclei and cytosol [11].
  • Use of antibodies directed against S12 did not permit detection of the mutant ribosomal protein inside the mitochondria [12].
  • We made use of a pair of isogenic cell lines, W12 and S12 [13].
 

Associations of PSMD7 with chemical compounds

  • Alternatively, platelets could be identified with FITC-AP1, an antibody specific for platelet membrane glycoprotein Ib, and analyzed further for PAC1 or S12 binding with PE-streptavidin [9].
  • Low concentrations of ADP and epinephrine, which induce fibrinogen receptors but little secretion, stimulated near-maximal PAC1 binding but little S12 binding [9].
  • Certain mutations in S12, a ribosomal protein involved in translation elongation rate and translation accuracy, confer resistance to the aminoglycoside streptomycin [2].
  • Monoclonal antibody (MAb) G1, which binds P-selectin and blocks its adhesive function, completely prevents association of the PMNs with histamine-stimulated HUVEC, whereas the nonblocking anti-P-selectin MAb S12 does not [15].
  • This mutation, which substitutes lysine for arginine in the S12 ribosomal binding protein, was not present in isolates with low-level SM resistance or in SM-susceptible control isolates [16].
 

Other interactions of PSMD7

  • Carboxyl terminus of hVIP/mov34 is critical for HIV-1-Vpr interaction and glucocorticoid-mediated signaling [17].
  • The effect of S5 and S12 on S4 accessibility is consistent with data from a variety of other approaches, suggesting that these proteins form a structural and functional domain in the small ribosomal subunit [14].
 

Analytical, diagnostic and therapeutic context of PSMD7

  • The mean radionuclide image-derived ratio of 99mTc S12 activity in PTA versus contralateral non-PTA arterial segments for all angioplasty sites was 1.6 +/- 0 [6].
  • Imaging of vascular injury with 99mTc-labeled monoclonal antiplatelet antibody S12. Preliminary experience in human percutaneous transluminal angioplasty [6].
  • The mean vascular 99mTc S12 activity ratios in 10 procedurally complicated (defined as extensive dilation [greater than 2 cm] or grade I or greater arterial dissection) and 13 uncomplicated PTA segments were 1.9 +/- 0.5 versus 1.2 +/- 0.1, respectively (p less than 0.01) [6].
  • Addition of phorbol myristate acetate resulted in the redistribution of P-selectin (CD62) from the alpha granule to the platelet surface as detected by MoAbs S12 and G5 in three-color flow cytometry analyses [18].
  • In situ hybridization using V. sativa metaphase chromosomes revealed the presence of the S12 sequences not only within rDNA genes, but also at several additional loci [19].

References

  1. HIV-1 Vpr interacts with a human 34-kDa mov34 homologue, a cellular factor linked to the G2/M phase transition of the mammalian cell cycle. Mahalingam, S., Ayyavoo, V., Patel, M., Kieber-Emmons, T., Kao, G.D., Muschel, R.J., Weiner, D.B. Proc. Natl. Acad. Sci. U.S.A. (1998) [Pubmed]
  2. Compensatory Evolution Reveals Functional Interactions between Ribosomal Proteins S12, L14 and L19. Maisnier-Patin, S., Paulander, W., Pennhag, A., Andersson, D.I. J. Mol. Biol. (2007) [Pubmed]
  3. IS1626, a new IS900-related Mycobacterium avium insertion sequence. Puyang, X., Lee, K., Pawlichuk, C., Kunimoto, D.Y. Microbiology (Reading, Engl.) (1999) [Pubmed]
  4. Effects of electron donors and acceptors on anaerobic reduction of azo dyes by Shewanella decolorationis S12. Hong, Y., Chen, X., Guo, J., Xu, Z., Xu, M., Sun, G. Appl. Microbiol. Biotechnol. (2007) [Pubmed]
  5. Characterization of the sigmaB-encoding genes of muscovy duck reovirus: sigmaC-sigmaB-ELISA for antibodies against duck reovirus in ducks. Zhang, Y., Guo, D., Liu, M., Geng, H., Hu, Q., Liu, Y., Liu, N. Vet. Microbiol. (2007) [Pubmed]
  6. Imaging of vascular injury with 99mTc-labeled monoclonal antiplatelet antibody S12. Preliminary experience in human percutaneous transluminal angioplasty. Miller, D.D., Rivera, F.J., Garcia, O.J., Palmaz, J.C., Berger, H.J., Weisman, H.F. Circulation (1992) [Pubmed]
  7. RNA editing and mitochondrial genomic organization in the cryptobiid kinetoplastid protozoan Trypanoplasma borreli. Maslov, D.A., Simpson, L. Mol. Cell. Biol. (1994) [Pubmed]
  8. Direct detection of activated platelets and platelet-derived microparticles in humans. Abrams, C.S., Ellison, N., Budzynski, A.Z., Shattil, S.J. Blood (1990) [Pubmed]
  9. Detection of activated platelets in whole blood using activation-dependent monoclonal antibodies and flow cytometry. Shattil, S.J., Cunningham, M., Hoxie, J.A. Blood (1987) [Pubmed]
  10. Decolorization of anthraquinone dye by Shewanella decolorationis S12. Xu, M., Guo, J., Zeng, G., Zhong, X., Sun, G. Appl. Microbiol. Biotechnol. (2006) [Pubmed]
  11. Post-translationally modified S12, absent in transformed breast epithelial cells, is not associated with the 26S proteasome and is induced by proteasome inhibitor. Thompson, H.G., Harris, J.W., Brody, J.P. Int. J. Cancer (2004) [Pubmed]
  12. The S12 ribosomal protein of Podospora anserina belongs to the S19 bacterial family and controls the mitochondrial genome integrity through cytoplasmic translation. Dequard-Chablat, M., Sellem, C.H. J. Biol. Chem. (1994) [Pubmed]
  13. Human papillomavirus type 16 E2 protein has no effect on transcription from episomal viral DNA. Bechtold, V., Beard, P., Raj, K. J. Virol. (2003) [Pubmed]
  14. Immunochemical accessibility of ribosomal protein S4 in the 30 S ribosome. The interaction of S4 with S5 and S12. Winkelmann, D.A., Kahan, L. J. Mol. Biol. (1983) [Pubmed]
  15. P-selectin mediates neutrophil rolling on histamine-stimulated endothelial cells. Jones, D.A., Abbassi, O., McIntire, L.V., McEver, R.P., Smith, C.W. Biophys. J. (1993) [Pubmed]
  16. Characterization of streptomycin resistance mechanisms among Mycobacterium tuberculosis isolates from patients in New York City. Cooksey, R.C., Morlock, G.P., McQueen, A., Glickman, S.E., Crawford, J.T. Antimicrob. Agents Chemother. (1996) [Pubmed]
  17. Carboxyl terminus of hVIP/mov34 is critical for HIV-1-Vpr interaction and glucocorticoid-mediated signaling. Ramanathan, M.P., Curley, E., Su, M., Chambers, J.A., Weiner, D.B. J. Biol. Chem. (2002) [Pubmed]
  18. Expression of a foreign protein in human megakaryocytes and platelets by retrovirally mediated gene transfer. Burstein, S.A., Dubart, A., Norol, F., Debili, N., Friese, P., Downs, T., Yu, X., Kincade, P.W., Villeval, J.L., Vainchenker, W. Exp. Hematol. (1999) [Pubmed]
  19. Microarray-based survey of repetitive genomic sequences in Vicia spp. Nouzová, M., Neumann, P., Navrátilová, A., Galbraith, D.W., Macas, J. Plant Mol. Biol. (2001) [Pubmed]
 
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