Class Notes (1,100,000)
US (460,000)
LSU (7,000)
BIOL (1,000)
BIOL 1201 (700)
Lecture 5

BIOL 1201 Lecture Notes - Lecture 5: Alpha Helix, Disulfide, Cell NucleusPremium


Department
Biological Sciences
Course Code
BIOL 1201
Professor
Moroney, James
Lecture
5

This preview shows half of the first page. to view the full 2 pages of the document.
Biol1201Lecture5Proteins,NucleicAcids,Cells
Proteins
● Formationofpolypeptides
o Bondsformsbydehydration
o Hasaminoandcarboxyl
● Shape
o Secondary:specifictypeoffolding.Helix
▪ Structureisheldtogetherbyhydrogenbonds.
▪ Alphahelix
o Tertiary:overallfoldingoftheprotein
▪ Disulfidebond
NucleicAcids:storeandtransmitgeneticinfo
● Buildingblocks
● DNA:doublehelixwithbasesATCG.Longlived.
● RNA:singlestrandwithbasesAUCG.Shortlived
● 
● Structure:
o Pentose:
▪ RiboseRNA
▪ DeoxyriboseDNA
o Phosphategroup
o NitrogenousBase
▪ Pyrimidine
▪ Purine
● Polymerofnucleotides
o alwayshasbondon#5carbon
o 5’endto3’end
**CLICKERQUESTIONS**
HowmanybondsdoesPhosphorousnormallyhave?5
Whatfunctionalgroupis–OH?Hydroxyl
ThepHoftheoceanis8.WhatistheH+concentration?1*10^8M
WhatfunctionalgroupisSH?Sulfhydryl
You're Reading a Preview

Unlock to view full version

Subscribers Only