pH, CHARGE OF AA AND PEPTIDE BONDS

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/4

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

5 Terms

1
New cards

at what pHs are amino acids negatively, neutral and positively charged

  • pH > 9 = negatively charged

  • pH 7 = neutral

  • pH < 2 = positively charged

occurs because AA are ionisable due to carboxyl and amide groups

acidic amino acids have a negative charge at pH 7

basic amino acids have a positive charged at pH 7

2
New cards

what feature of a protein does charge determine

the shape

3
New cards

describe what a peptide bond is

  • formed via a condensation reaction between a carboxyl and amide group of adjacent AA

  • enzyme peptidyl transferase (found in ribosome) catalyses formation during translation

4
New cards

properties of peptide bonds (5)

  • rigid

  • planar

  • covalent

  • stable

  • physiologically only broken by proteases

5
New cards

how many peptide bonds does the average protein have

300

varies greatly