SSN2/YDR443C Additional Physico-chemical Properties Help

Physico-chemical properties were determined using the ProtParam tool available through ExPASy to analyze the primary protein sequence for atomic composition, extinction coefficient, estimated half-life, instability index and aliphatic index. Transcript translation calculations were determined using CodonW.


A.A. Composition
Ala[A] 65 4.6%
Arg[R] 38 2.7%
Asn[N] 116 8.2%
Asp[D] 95 6.7%
Cys[C] 15 1.1%
Gln[Q] 60 4.2%
Glu[E] 82 5.8%
Gly[G] 55 3.9%
His[H] 35 2.5%
Ile[I] 101 7.1%
Leu[L] 141 9.9%
Lys[K] 102 7.2%
Met[M] 33 2.3%
Phe[F] 61 4.3%
Pro[P] 87 6.1%
Ser[S] 137 9.6%
Thr[T] 78 5.5%
Trp[W] 12 0.8%
Tyr[Y] 41 2.9%
Val[V] 66 4.6%
Total Length 1420

Instability index
Instability index (II) 47.03
This classifies the protein as unstable

Atomic composition
Carbon 7109
Hydrogen 11148
Nitrogen 1894
Oxygen 2207
Sulfur 48
Total number of atoms 22406
Formula = C7109H11148N1894O2207S48

Estimated half-life
Escherichia coli (in vivo) >10 hours
mammalian reticulocytes (in vitro) 30 hours
yeast (in vivo) >20 hours

Extinction Coefficients at 280 nm
assuming ALL Cys residues appear as half cystines 127965 M-1 cm-1
assuming NO Cys residues appear as half cystines 127090 M-1 cm-1
assuming all Cys residues are reduced 127090 M-1 cm-1
assuming all pairs of Cys residues form cystines 127965 M-1 cm-1

Aliphatic index
Aliphatic index 84.52

Coding Region Translation Calculations
Codon Bias 0.019
Codon Adaptation Index 0.125
Frequency of Optimal Codons 0.425
Hydropathicity of Protein -0.458
Aromaticity Score 0.080