AA Flashcards

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1
Q

aaen ezaugarriak

A
  • aktibitate optikoa ( C asimetriko)
  • anfoteroak // ionizazioa : azido zein base gisa jokatzeko ahalmena ing pH arabera
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2
Q

puntu isoelektrikoa

A

pH balio konkretu
dipolarra //zwitteriona da

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3
Q

sailkapena

A

r talde:
1. apolar
2. eraztun aromatiko
3. karga gabeko polar
4. negatibo polar
5. positibo polar

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4
Q

lotura peptidikoa zer eta nola eratu

A
  • aa-en arteko lotura kobalentea = amida
  • karboxilo+amino= amida + ura
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5
Q

lotura peptidikoaren ezaugarriak

A
  1. oso egonkorra
  2. zailtasuna hidrolizatzeko = enz behar (prote-olitiko/asa)
  3. erresonantea = lot bikoitzaren izaera partzial = 2 e lekualdatu etengabe
  4. ezin dira C biratu === C ETA N plano berean
  5. izaera dipolar ahula
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6
Q

izaera dipolar ahula lotura peptidikoan

A

elektronegatibitatea:
N> H = H(+)
O>C = O(-)

KARGA PARTZIAL 2

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7
Q

kate polipeptidikoak

A

aa sekuentzia = aa loturak
beti linealak
2 mutur = C/N
**R alternantzia **zigzag

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