Pages

Monday, November 16, 2009

jom aminoacid.

apekha itu protein?

long polymer made up of amino acid.

btol! yeeha.

amino acid neh die ade 20 common type.

cane die di-classdified kn eh?
*based on R group la eh.

em. mcm ni...
ade 5.

kalo hydrophobic ade 2
1) nonpolar aliphatic.
2)aromatic R

kalo hydrophilic lak ade 3.
1)polar uncharged
2)+vely charged
3)-vely charged

msg2 ade contoh ye.
n mst n mst ingat ok...
mmg berat.
tp, i'll try. ganbate lisa.

okeh. stat dr nonpolar aliphatic.
valine, leucine, isoleucine, proline, glycine, n alanine

kalo aromatic R lak...
phenylalanine, tyrosine n trytophan.

tnpa pndg. tulis balik....
phenylalanine, tyrosine, trytophan.

gud!

next is...
polar uncharged
yg neh pelik skit.
sbb ade yg hydroxyl(-OH) group, sulphur(S) n also amide(-CONH2) group
n da bad news are sume ade example, yg perlu dihafal ye...

em,for hydroxyl uh.. serine n threonine
sulphur lak.. cysteine n methionine
n amide lak.. asparagine n glutamine

+vely charged lak.
lysine, arginine n histidine(basic)

-vely charged.
aspartate n glutamate(acidic)

ngat x?

k, cter balikk..

hydrophobic = aliphatic non polar, aromatic R
hydroplilic = polar uncharged, +vely, -vely..

contohnya~
aliphatic non polar = alanine, glycine, leucine, isoleucine, proline, valine
aromatic R = phenylalanine, thyrosine, n .. pe lg satu! argh!haa. thrytophan la...

polar uncharged =
hydroxyl : serine, threonine.
sulphur, : ceisteine n methionine.
n amide? : emm. asparigine n glutamine

+vely charged?? lysine, arginine, histidine..
-vely charged?? aspartate n glutamate

xingat sgt. (+.+")

No comments:

Related Posts Plugin for WordPress, Blogger...