Table 1.

Multilinear regression model for heavy metal detoxification by amino acids.

HM	Model building		R-sq %	Final model Equation
Cd	X1:Gly X2:Thr X3:Tyr X4:Lys X5:Leu	73.29	=12.88 + 0.561 X1- 0.157 X2- 0.2103 X3- 0.0628 × 4 + 0.0959 X5- 0.001257 X2^2- 0.000346 X3^2 – 0.002544 X1*X2 + 0.002757 X2*X3 + 0.000445 X2*X4 – 0.000443 X3*X5
Cr	X1:Asp X2:Glu X3:Asn X4:Ser X5:Leu	82.36	=0.299 + 0.01146 X1- 0.01035 X2- 0.0271 × 3 + 0.00096 X4 + 0.03371 X5- 0.000035 X1^2 + 0.000073 X1*X3- 0.000059 X1*X5 + 0.000045 X2*X4-0.000037 X4*X5
Hg	X1:Tyr X2:Ser	92.26	= −0.00408 + 0.000212 X1 + 0.000379 X2 − 0.000001X1*X2
Pb	X1:Asn X2:Val X3:Trp X4:Ile	90.32	=10.56–0.1077 × 1–0.0141 X2 + 0.2007 X3 + 0.0745 X4-0.000312 X3^2 + 0.000341 X1*X2 – 0.000324 X2*X4
Ni	X1:Phe X2:Trp X3:Lys X4:Glu	96.87	=−1.143–0.00276 × 1 + 0.0457 X2 – 0.00838 × 3 + 0.03069 X4 + 0.000023 X1^2 – 0.000078 X1*X2
Sn	X1: Lys X2:Asp X3:Thr X4:Gly	92.50	=−0.0047–0.000679 × 1 + 0.000434 X2 + 0.000699 X3 + 0.001985 X4 + 0.000001 X1^2-0.000003 X2*X4 – 0.000004 X3*X4
Se	X1:Asn X2:Arg X3:Phe X4:Ile X5:Leu	77.50	== 1.320 + 0.00391 X1- 0.0120 X2- 0.00708 X3- 0.00351 × 4 + 0.0449 X5 + 0.000086 X2^2- 0.000022 X1*X4- 0.000179 X2*X5 + 0.000034 X3*X4