polyribosome


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polyribosome

 [pol″e-ri´bo-sōm]
a cluster of ribosomes connected with messenger RNA; they play a role in peptide synthesis.

polyribosome

(pŏl′ē-rī′bə-sōm′)
n.
A cluster of ribosomes that is connected by a strand of messenger RNA and is active in protein synthesis. Also called polysome.

polyribosome

A cluster or string of ribosomes held together by a molecule of messenger RNA.

polyribosome

or polysome two or more RIBOSOMES joined by a molecule of messenger RNA during PROTEIN SYNTHESIS. Such an arrangement ensures that the mRNA is ‘read’ at the maximum speed.
References in periodicals archive ?
These differences can be related to the differences of neuronal density between the segments of each study, and also to the fact that not all myenteric neurons are myosin V positive while polyribosomes of all neurons are stained by Giemsa technique.
Use of this gradient allowed for analysis of the "native" state of the polyribosome size structure and for the determination of the number of ribosomes attached to, and actively translating on, mRNA transcripts.
They also exhibit elongated mitochondria with few crests, Golgi apparatus and large amounts of the smooth endoplasmic reticulum, ribosomes and free polyribosomes (Fig.
Protein synthesis, polyribosomes, and peptide elongation in early development of Strongylocentrotus purpuratus.
La Regina et al., "Increased cytoplasmic TDP-43 reduces global protein synthesis by interacting with RACK1 on polyribosomes," Human Molecular Genetics, vol.
Polypeptides called procollagen chains are produced on polyribosomes bound to membranes of RER and translocated into the cisternae and the signal peptide is clipped off.
NR0B1 (DAX1) protein binds mRNAs associated with polyribosomes and regulates other gene expressions on the posttranscriptional level [9].
Association of the mouse infertility factor DAZL1 with actively translating polyribosomes. Biol Reprod 2000;62(6): 1655-1660.
Richter, "Human let7a miRNA blocks protein production on actively translating polyribosomes," Nature Structural and Molecular Biology, vol.
The results of the TEM showed that the adipocytes in the newly formed tissue were mature and had a well-developed nucleolus, a cytoplasm rich in ribosomes and polyribosomes, glycogen clusters, small lipid droplets, and large, dense mitochondria with variable amounts of cristae.
This would lead to the dissembly of polyribosomes (Lin and Glazer, 1981), incomplete methylation (Almstedt et al., 2010) and acceptor function of transfer RNA (Daskalakis et al., 2002).
These virus-like 30 ncRNAs are induced by ischemia and paradoxically bound to polyribosomes, although they are not translated.