TLS Online TPP Program

#Question id: 815


The cis conformation shows Cα atoms are on the same side of the peptide bond, is ∼8 kJ mol−1 less stable than the trans conformation. Why?

#SCPH01 Biochemistry
  1. steric interference between ketone and amide group

  2. because of steric interference between neighboring side chains

  3. conformational entropy will be high in cis conformation

  4. because the peptide bond is less stable

More Questions
TLS Online TPP Program

#Question id: 2634

#SCPH28 | Zoology

Tryptophan, the end-product of the enzymes encoded by the trp operon, therefore acts as a co-repressor and inhibits its own synthesis through:

TLS Online TPP Program

#Question id: 2635

#SCPH01 Biochemistry

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?

TLS Online TPP Program

#Question id: 2635

#I Life Science/ Life Sciences Group – I-V

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?

TLS Online TPP Program

#Question id: 2635

#SCPH05 I Biotechnology

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?

TLS Online TPP Program

#Question id: 2635

#SCPH28 | Zoology

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?

TLS Online TPP Program

#Question id: 2636

#SCPH01 Biochemistry

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site