Words similar to proteasomes
Example sentences for: proteasomes
How can you use “proteasomes” in a sentence? Here are some example sentences to help you improve your vocabulary:
Proteasomes translocated to meiotic spindles of rat oocytes and MG-132 induced-inhibition of proteasomal activity resulted in partial segregation of chromosomes during meiosis I [ 42 ] . Moreover, defective proteasomal activity in fission yeast impaired chromosome segregation [ 38 ] .
In a recent large-scale screen with 1739 yeast proteins used as bait [ 3 ] , midasin (YLR106p) was identified in the polypeptide sets that copurified with four bait proteins, ESS1p, RPT1p, YML029p and HRT1p, that function principally in RNA metabolism and in the regulation of proteasomes (which are mostly intranuclear in yeast [ 50 ] ). However, the interpretation of these proteomic data is clouded by the fact that no protein partners were identified in the complementary experiment in which midasin was itself used as bait.
Second, the final maturation of the 20S proteasome resulted from the assembly of two half proteasomes into the four stacked ring structure could trap the already bound Smad1 inside the proteasome for rapid degradation or lead to the dissociation of Smad1 from mature 20S proteasome due to the inaccessibility of Smad1 binding site on the incorporated HsN3.
Proteasome activity is required for germinal vesicle breakdown (GVBD) in starfish and toad oocytes [ 44 45 ] and for activating Xenopus oocytes [ 45 46 ] . Also, proteasomes are needed for regulating centrosome segregation [ 38 47 ] , kinetochore structure [ 39 ] , and sister chromatid cohesion and separation [ 48 ] . When rat oocytes were exposed to the proteasome inhibitor MG132, proteasomes translocated to the meiotic spindle, MPF activity was sustained, and oocytes were arrested in MI with partially segregated chromosomes [ 42 ] .
The degradation of Smad1 by proteasome is reported in a separate study [ 39 ] . The dissociation of Smad1 from the mature 20S proteasome could be due to the competition of Smad1 binding by a 19S regulator protein or simply due to the inaccessibility of the binding site on HsN3 when two half proteasomes assembly into the mature proteasome.
Loading...