Sentences with phrase «ribosomal subunit»

In Escherichia coli, the small ribosomal subunit has a sedimentation coefficient of 30S, and consists of a 16S RNA molecule of 1541 nucleotides complexed with 21 proteins.

Moreover, a funnel - shaped pore in the Sec61 oligomer aligned with the exit of a tunnel traversing the large ribosomal subunit, strongly suggesting that both structures function together in the translocation of proteins across the endoplasmic reticulum membrane.

In particular, there was a complex between the 40S ribosomal subunit and initiator tRNA that went away when heme was missing or double - stranded RNA was present.

Using the atomic structures of the large ribosomal subunit fromHaloarcula marismortui and its complexes with two substrate analogs, we establish that the ribosome is a ribozyme and address the catalytic properties of its all - RNA active site.

Now, as Thomas Cech explains in his Perspective, atomic resolution of the structure of the large ribosomal subunit reveals that, as predicted by those convinced of a prebiotic RNA world, RNA is the catalytic component with proteins being the structural units that support and stabilize it (Ban et al., Nissen et al., Muth et al.).

Crystal structures of the 30S ribosomal subunit in complex with messenger RNA and cognate transfer RNA in the A site, both in the presence and absence of the antibiotic paromomycin, have been solved at between 3.1 and 3.3 angstroms resolution.

It spans both ribosomal subunits with its amino - terminal domain positioned adjacent to the aminoacyl acceptor stem and its carboxyl - terminal domain positioned next to the anticodon stem - loop of the P site — bound initiator tRNA.

Domain II of EF - P interacts with the ribosomal protein L1, which results in the largest movement of the L1 stalk that has been observed in the absence of ratcheting of the ribosomal subunits.

Not exact matches

This piece of DNA, called the 16S subunit of ribosomal RNA, does not change quickly over time, however, so it gives a very coarse timeline for the evolution of bacteria.

The branch uniting the fungi and animals is well - supported based on a number of molecular phylogenetic datasets, including the nuclear small subunit ribosomal RNA gene (Wainwright et al., 1993; Bruns et al. 1993), unique and shared sequence insertions in proteins such as elongation factor 1α (Baldauf and Palmer, 1993), entire mitochondrial genomes (Lang et al., 2002), and concatenated protein - coding genes (Steenkamp et al., 2006).

Therefore, Teitell's group opted to further modify their constructs with a 3 ′ - UTR mitochondrial targeting sequence (MTS) from human mitochondrial ribosomal protein S12 — the same essential approach used to optimize the import of allotopically - expressed proteins by Dr. Marisol Corral - Debrinski, (3,4) and subsequently advanced for multiple additional ETS subunit proteins by Dr. Matthew O'Connor's group at the SENS Foundation Research Center (RC).

Specifically, we have shown that the condensin subunit Cnd2 binds directly to the most important general transcription factor, the TATA box - binding protein TBP, and that TBP recruits condensin molecules onto RNA polymerase III - transcribed genes and highly active Pol II - transcribed genes (many ribosomal protein genes) through the Cnd2 - TBP interaction (Figure A).

In eukaryotes, they consist of a small 40S and large 60S subunit, which carry the decoding and peptidyl transferase activity, respectively, and together comprise four ribosomal (r) RNAs (18S, 5.8 S, 25S and 5S rRNA) and 78 ribosomal proteins in yeast.

Phylogenetic analysis of complete small subunit ribosomal RNA coding region of Myxidium lieberkuehni: evidence that Myxozoa are Metazoa and related to the Bilateria.

The phylogeny of Myxosporea (Myxozoa) based on small subunit ribosomal RNA gene analysis.

Small subunit ribosomal RNA sequences link the cause of proliferative gill disease in channel catfish to Henneguya n. sp. (Myxozoa: Myxosporea).

Phylogenetic analysis of the non-pathogenic genus Spiromastix (Onygenaceae) and related onygenalean taxa based on large subunit ribosomal DNA sequences.

Combined large and small subunit ribosomal RNA phylogenies support a basal position of the acoelomorph flatworms.