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Ϊɵʵ΢͵λڵ 20 ֲͬİᣬЩͨеİṹ RCH(NH2)COOH.𡣵ԭ (N) ӵ (H) ϳΪ -NH2, ʵȻ-COOH . R- ǰIJҲֱӾԵļšڰУֻй praline İ΢̫ͬĽṹ

еȻڷеİʱγļ -C(=O) NH-ͬʱͷһӵˮ (H2O) 2 ɡ ; 10 С 10 İ 뵰 10 10 İɵģһ˵ĵİẬ 50 򱻳Ϊʡ

1 : еİ ӢдṹʽɫΪ

 

Ala = alanine


CH3CH(NH2)COOH


Arg = arginine


H2N-C(=NH)NHCH2CH2CH2CH(NH2)COOH
 

Asn = asparagine 춬


(H2N-C(=O)CH2CH(NH2)COOH

Asp = aspartic acid ()


HOOC-CH2CH(NH2)COOH

Cys = cysteine װ


HS-CH2CH(NH2)COOH

Gln = glutamine Ȱ


H2N-C(=O)CH2CH2CH(NH2)COOH

Glu = glutamic acid Ȱ


HOOC-CH2CH2CH(NH2)COOH
 

Gly = glycine


HCH(NH2)COOH

His = histidine 鰱 *


Ile = isoleucine *


CH3CH2CH(CH3)CH(NH2)COOH

Leu = leucine *


CH3CH(CH3)CH2CH(NH2)COOH

Lys = lysine *


H2N-CH2CH2CH2CH2(NH2)COOH

Met = methionine *


CH3-S-CH2CH2CH(NH2)COOH

Phe = phenylalanine *


Pro = proline


proline

Ser = serine ˿


HOCH2CH(NH2)COOH

Thr = threonine հ *


CH3CH(OH)CH(NH2)COOH

Trp = tryptophan ɫ *


Tyr = tyrosine Ұ


Val = valine Ӱ *


CH3CH(CH3)CH(NH2)COOH

* 백

 

백ᡱָΪҪֱӴʳлȡһఱᡣɻϳȻϳɵЧԶԶڻʳаװ벻㣬ҪдĵתƵģҲתΪҰᣬʳѷҰҪԭȥתȻ󣬶ڱ֢ͪIJˣҰDZİᣬΪ PKU(֢ͪ) ˵³´лûа취תΪҰᡣ Ӱᱻ֧ᡱΪǵķֲIJ

廯ѧ

20 ְУ˰⣬̼ԭİŶĸͬȡǽṹ̼Ǽ벻ԳƲʹðγеIJغϽṹ ҲνľṹȻֻ L- ᡣ L- ᵱȻڷӶʱڷ࣬ͼʾ ʵШΪƽ֮ϣΪƽ֮¡

L-Alanine

L-

R-

 

ĵγ

Formation of a peptide

ͼʾΪӵİϣе R R' Ϊ⹦ܼšɫȦָʾˮγ (H2O) ɫȦΪļ (-C(=O)NH- ).

˷ӦΪ淴Ӧͨ ˮ ԱֽӵİᡣҵʳƷˮ߲˵Ϊʳ㾫;ͨķͻ߷ҺӶˮ󶹺СĵġȰ (ζ), ζһֹȰΣһںжһЩ͵ĶƷС

Դ :

 

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