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TLS Online TPP Program

#Id: 786

Readthrough transcripts refer to the fraction of transcripts that are not stopped by the terminator. 

#Unit 3. Fundamental Processes #Prokaryotic Transcription Termination #Part B Pointers
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TLS Online TPP Program

#Id: 8466

#Unit 1. Structure and Function of Biomolecules

Polyleucine and polyalanine readily form a-helical structures.
TLS Online TPP Program

#Id: 8467

#Unit 1. Structure and Function of Biomolecules

polylysine is a random coil at pH values below about 11, where repulsion of positive charges prevents helix formation. At pH 12, where polylysine is a neutral peptide chain, it readily forms an a-helix.
TLS Online TPP Program

#Id: 8468

#Unit 1. Structure and Function of Biomolecules

polyGlu is a random coil at pH values above about 5, where repulsion of negative charges prevents helix formation. 
TLS Online TPP Program

#Id: 8469

#Unit 1. Structure and Function of Biomolecules

The RHH (L amino acids) α helix, which ideally has ϕ = −57° and ψ = −47°
TLS Online TPP Program

#Id: 8470

#Unit 1. Structure and Function of Biomolecules

The two forms of poly(Pro)
all cis (I) or all trans (II) peptide bonds. 
poly(Pro) I as a right-handed helix with 3.3 residues per turn 
poly(Pro) II is a left-handed helix with 3 residues per turn.
TLS Online TPP Program

#Id: 8471

#Unit 1. Structure and Function of Biomolecules

poly(Pro) helix are stabilized by water molecule hydrogen bonding