Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following initiation factor when bound to the 30S subunit blocks the A site, so that only the P site is available for the initiator tRNA to bind to?

Which of the following initiation factor when bound to the 30S subunit blocks the A site, so that only the P site is available for the initiator tRNA to bind to? Correct Answer IF-1

IF-1 binds to the 30S subunit and blocks the A site so that only the P site is available for the initiator tRNA to bind to. It leaves after the initiator tRNA has attached to its complementary sequence. Now, the 50S ribosomal subunit can bind to the 30S subunit to form a complete 70S ribosome.

Related Questions

Which set of the following events occurs during the elongation step of translation?
P. Attachment of mRNA with the smaller subunit of ribosome
Q. Loading of correct aminoacyl-tRNA into the A site.
R. Formation of a peptide bond between the amino acyl-tRNA in the A site and the peptide chain that is attached to the peptidyl-tRNA in the P site.
S. Dissociation of the ribosomal subunits.
T. Translocation of peptidyl-tRNA from the A site to the P site of the ribosome.
According to the hybrid state model, if we consider the hybrid state of a tRNA such that its base is bound to the P site of 30S subunit, where will its head be bound?
What happens when the gp130 subunit and the leukemia inhibitory factor receptor β-subunit is combined with a ciliary neurotrophic factor’s receptor subunit?
Which of the following initiation factor bring the initiator tRNA?
The specificity of initiator $$tRNA$$  but absent in elongator $$tRNA\,\left( {tRNA_m^{met}} \right)$$    is conferred by
Consider the following questions: A): Five wheel rotations on a bike takes you 12 yards. How many wheel rotations will be required to go 60 yards? B): In a college, 5 out of every 8 seniors live in apartments. Out of 30 seniors how many are likely to live in apartment? C): John and Lisa were walking at the same speed. Lisa started first. When Lisa has walked 6 blocks, john has walked 2 blocks. How many blocks would John cover when Lisa has covered 12 blocks. Choose the correct option.
How many blocks away will Fred be from his starting p;ace if he travels two blocks north , then three blocks east, and then two blocks south?
How many blocks away will Fred be from his starting place if he travels two blocks north, then three blocks east and then two blocks south?
The initiation of translation requires a special type of tRNA to bind to the ORF of the mRNA.
Which of the following antibiotics blocks protein synthesis by acting as an analogue to the adenosine terminal of phenylalanyl tRNA, and thus displacing aminoacyl tRNA?