R-Groups Flashcards
(30 cards)
Alanine (Alg/A)
-CH3
-non-polar (hydrophobic)
Arginine (Arg/R)
-CH2-CH2-CH2-NH-C(NH2+)(NH2)
-polar (hydrophilic)
-positive charge
Asparagine (Asn/N)
-CH2-CONH2
-polar (hydrophilic)
-no charge
Aspartic Acid (Asp/D)
-CH2-(COO-)
-polar (hydrophilic)
-negative charge
Cysteine (Cys/C)
-CH2-SH
-non-polar (hydrophobic)
Glutamic acid (Glu/E)
-CH2-CH2-(COO-)
-polar (hydrophilic)
-negative charge
Glutamine (Gin/Q)
-CH2-CH2-CONH2
-polar (hydrophilic)
-no charge
Glycine (Gly/G)
-H
-non-polar (hydrophobic)
Histidine (His/H)
-CH2 and imidazole ring with two N and three C (C3H3N2)
-polar (hydrophilic)
-positive charge
Isoleucine (Ile/I)
-CH(CH3)-CH2-CH3
-non-polar (hydrophobic)
Leucine (Leu/L)
-(CH3)2CH-CH2
-non-polar (hydrophobic)
Lysine (Lys/K)
-(CH2)4-NH3+
-polar (hydrophilic)
-positive charge
Methionine (Met/M)
-CH2-CH2-S-CH3
-non-polar (hydrophobic)
Phenylalanine (Phe/F)
-CH2 and benzene ring (C6H6)
-non-polar (hydrophobic)
Proline (Pro/P)
-CH2-CH2-CH2
-non-polar (hydrophobic)
Serine (Ser/S)
-CH2-OH
-polar (hydrophilic)
-no charge
Threonine (Thr/T)
-CH(OH)-CH3
-polar (hydrophilic)
-no charge
Tryptophan (Trp/W)
-CH2 to pyrrole ring (C₄H₄NH) to benzene ring (C6H6)
-non-polar (hydrophobic)
Tyrosine (Tyr/Y)
-CH2-C6H4-OH
-polar (hydrophilic)
-no charge
Valine (Val/V)
-CH(CH3)2
-non-polar (hydrophobic)
Non-Polar (hydrophobic) side chains
-alanine, cysteine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, tryptophan, valine
-(10)
Polar (hydrophilic) side chains
-arginine, asparagine, aspartic acid, glutamic acid, glutamine, histidine, lysine, serine, threonine, tyrosine
-(10)
Positively charged (polar) side chains
-arginine, lysine, and histidine
-(3)
Negatively charged (polar) side chains
-aspartic acid, glutamic acid
-(2)
