RNA的种类有三种,mRNA(messenger RNA)存在于细胞核和细胞质中,tRNA(transfer RNA)和rRNA(ribosomal RNA)存在于细胞质中。RNA可以通过核孔,DNA则不行。 练习题 链接为Google Forms形式的14道练习题,做完提交后会显示分数和正确答案。 习题副本如有需要请在末尾选择“Send me a copy of my responses.”,系统会...
messenger RNA (mRNA) –It is the RNA that carries information from DNA to the ribosomes (site of protein synthesis) in the cell. The mRNA code sequences determine the amino acid sequence in the protein that is produced. ribosomal RNA (rRNA)– It incorporates into the ribosomes. transfer R...
Cleavage of transfer (t)RNA and ribosomal (r)RNA are critical and conserved steps of translational control for cells to overcome varied environmental stresses. However, enzymes that are responsible for this event have not been fully identified in high eukaryotes. Here, we report a mammalian tRNA/...
A recently proposed method of RNA secondary structure prediction based on DNA sequence comparisons is reviewed and applied to several types of RNAs, including tRNA, rRNA, and mRNA. The patterns of covariation in these RNAs are analyzed based on Kimura's compensatory evolution model. The results ...
Here, we report a mammalian tRNA/rRNA-targeting endoribonuclease: SLFN13, a member of the Schlafen family. Structural study reveals a unique pseudo-dimeric U-pillow-shaped architecture of the SLFN13 N'-domain that may clamp base-paired RNAs. SLFN13 is able to digest tRNAs and rRNAs in ...
Structure of the 70S Ribosome Complexed with mRNA and tRNA The crystal structure of the bacterial 70S ribosome refined to 2.8 angstrom resolution reveals atomic details of its interactions with messenger RNA (mRNA)... M Selmer,Dunham, CM,Murphy, FV,... - 《Science》 被引量: 1879发表: 2006...
The secondary structure of mRNA, especially in the 5′UTR (or leader region), is an important determinant of the efficiency of translation initiation. For most of the known structural genes in prokaryotes, the initiator codon AUG is found either within or immediately downstream of a potential ste...
et al. Structure of the 70S ribosome complexed with mRNA and tRNA. Science 313, 1935–1942 (2006). CAS PubMed Google Scholar Kawai, G. et al. Conformational rigidity of specific pyrimidine residues in tRNA arises from posttranscriptional modifications that enhance steric interaction between the ...
Learn the difference between DNA and RNA, learn about the 3 types of RNA and their functions and understand the structure and function of mRNA, tRNA and rRNA. Related to this Question Difference between DNA and RNA. Identify two structural differences between DNA and RNA. ...
These domains bind to structured RNA, such as that found in tRNA, rRNA, and a pseudoknot of mRNA. The structure of YbcJ revealed a highly conserved patch of basic residues, comprising amino acids K26, K38, R55, K56, and K59, which likely participate in RNA binding....