Table 1.

Amino acid analysis of purified PsTx

Amino acid	Mol%
Asx (D + N)	10.59  ±  0.20
Glx (E + Q)	6.43  ±  0.12
Ser (S)	9.20  ±  0.10
Gly (G)	6.91  ±  0.06
His (H)	2.32  ±  0.14
Arg (R)	5.40  ±  0.12
Thr (T)	4.19  ±  0.10
Ala (A)	9.78  ±  0.05
Pro (P)	8.15  ±  0.09
Tyr (Y)	5.13  ±  0.09
Val (V)	4.85  ±  0.13
Met (M)	2.08  ±  0.23
Ile (I)	5.27  ±  0.10
Leu (L)	4.11  ±  0.09
Phe (F)	3.36  ±  0.08
Lys (K)	12.19  ±  0.06

Composition based on phenylthiocarbamyl amino acid analysis of HPLC purified PsTx (method 2). Values represent mol% ± the relative SD from replicate analyses (n = 5–8) and are uncorrected for partial destruction and incomplete hydrolysis. Cys and Trp were not determined.