The trans form is the more favoured state because in this arrangement repulsion between non-bonded atoms connected to the Cα centre are minimized. 

For most peptide bonds the ratio of cis to trans configurations is approximately 1:1000.

TLS Online TPP Program

#Id: 2908

#Unit 3. Fundamental Processes

Each DnaB-DnaC complex consists of six DnaC monomers bound to a hexamer of DnaB

TLS Online TPP Program

#Id: 2909

#Unit 3. Fundamental Processes

he prepriming complex generates a protein aggregate of 480 kD, which corresponds to a sphere of radius 6 nm

TLS Online TPP Program

#Id: 2912

#Unit 3. Fundamental Processes

Each DnaB activates a DnaG primase-in one case to initiate the leading strand, and in the other to initiate the first Okazaki fragment of the lagging strand

TLS Online TPP Program

#Id: 2913

#Unit 3. Fundamental Processes

Gyrase, a type II topoisomerase, provides a swivel that allows one DNA strand to rotate around the other.

TLS Online TPP Program

#Id: 2914

#Unit 3. Fundamental Processes

The protein single-strand binding protein (SSB) stabilizes the single-stranded DNA as it is formed and modulates the helicase activity.

TLS Online TPP Program

#Id: 2915

#Unit 3. Fundamental Processes

The length of duplex DNA that usually is unwound to initiate replicati011 is probably <60 bp.