package de.proteinms.xtandemparser.xtandem;
/**
* This class holds all the masses used for the calculation of theoretical masses.
*
* @author Thilo Muth
*/
public class Masses {
// The masses for all the amino acids including empty values for non-amino acid letters
// Update on 05/25/10: Using NEW mono isotopic reference masses due to wrong values.
//public static final double A = 71.037110;
public static final double A = 71.037110;
public static final double B = 114.534930;
//public static final double C = 160.030649;
public static final double C = 103.009185;
//public static final double D = 115.026940;
public static final double D = 115.026943;
//public static final double E = 129.042590;
public static final double E = 129.042593;
//public static final double F = 147.068410;
public static final double F = 147.068414;
//public static final double G = 57.021460;
public static final double G = 57.021464;
//public static final double H = 137.058910;
public static final double H = 137.058912;
//public static final double I = 113.084060;
public static final double I = 113.084064;
public static final double J = 0.000000;
public static final double K = 128.094963;
//public static final double L = 113.084060;
public static final double L = 113.084064;
//public static final double M = 131.040490;
public static final double M = 131.040485;
//public static final double N = 114.042930;
public static final double N = 114.042927;
public static final double O = 0.000000;
//public static final double P = 97.052760;
public static final double P = 97.052764;
//public static final double Q = 128.058580;
public static final double Q = 128.058578;
//public static final double R = 156.101110;
public static final double R = 156.101111;
//public static final double S = 87.032030;
public static final double S = 87.032028;
//public static final double T = 101.047680;
public static final double T = 101.047679;
public static final double U = 0.000000;
//public static final double V = 99.068410;
public static final double V = 99.068414;
//public static final double W = 186.079310;
public static final double W = 186.079313;
public static final double X = 111.000000;
//public static final double Y = 163.063330;
public static final double Y = 163.06332;
public static final double Z = 128.550590;
/**
* The mass of Hydrogen
*/
public static final double Hydrogen = 1.007825;
/**
* The mass of Carbon
*/
public static final double Carbon = 12.000000;
/**
* The mass of Nitrogen
*/
public static final double Nitrogen = 14.003070;
/**
* The mass of Oxygen
*/
public static final double Oxygen = 15.994910;
/**
* The mass of an electron
*/
public static final double Electron = 0.005490;
/**
* The mass of the C Terminus = Oxygen + Hydrogen
*/
public static final double C_term = 17.002735;
/**
* The mass of the N Terminus = Hydrogen
*/
public static final double N_term = 1.007825;
}
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