what is meant by Shine-Dalgarno sequence in protein
synthesis?
Answers were Sorted based on User's Feedback
Answer / rajat pandey
The Shine-Dalgarno sequence (or Shine-Dalgarno box),
proposed by Australian scientists John Shine and Lynn
Dalgarno,[1] is a ribosomal binding site generally located
6-7 nucleotides upstream of the start codon AUG. The Shine-
Dalgarno sequence exists only in prokaryotes. The six-base
consensus sequence is AGGAGG; in E. coli, for example, the
sequence is AGGAGGU. This sequence helps recruit the
ribosome to the mRNA to initiate protein synthesis by
aligning it with the start codon. The complementary
sequence (CCUCCU), is called the anti-Shine-Dalgarno
sequence and is located at the 3' end of the 16S rRNA in
the ribosome. The eukaryotic equivalent of the Shine-
Dalgarno sequence is called the Kozak sequence.
| Is This Answer Correct ? | 22 Yes | 0 No |
For the production of 30s initiation complex the 3 terminal
region of 16 s rna component of 30s ribosomal subunit is the
binding site for m-rna.it has a pyrimidine rich hydrogen
bonds with a complementary sequence of purine rich region on
the 5'side.
T his purine rich region consisting of 4-9 residues upstream
from aug codon on m-rna is called shine-dalgarno sequence.
| Is This Answer Correct ? | 10 Yes | 4 No |
how the zwitter ion formation takes place in aminoacid metabolism?
What are species grow in waitland?
What is acid number?
What is thermite mixture?
What causes the elasticity of corneal layer of skin?
What are allosteric enzymes?
What is the phenomenon of salting-in effect?
how vitamin c is synthesised?
I have given the protocol for the cyclodextrin glygosyl transferase assay: One ml of appropriately diluted enzyme sample was incubated at 60 °C for 15 min with 5 ml of 1% (w/v) gelatinized soluble starch in 50 mM, 7.0-pH Tris–HCl buffer. Reaction was terminated by boiling the reaction mixture for 3 min and reaction volume was made to 10 ml with distilled water. Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol). Absorbance was measured at 550 nm. The percent decrease of sample was calculated with respect to control containing 5 ml of buffer, 5 ml of sodium carbonate and 0.5 ml of phenolphthalein. where Acontrol = absorbance of control and Atest = absorbance of sample. The amount of β-cyclodextrin (β-CD) produced was estimated from the standard graph of 0–500 μg/ml β-CD concentration against % decrease in absorbance. One unit of CGTase was defined as the amount of enzyme required to produce 1 μm of β-CD/min. Please can you suggest me the formula for the defination given in the last line
Differentiate between gram +ve and gram -ve bacteria.
What are antibodies?
What is internal energy?