GIS2/YNL255C 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] 5 3.3%
Arg[R] 8 5.2%
Asn[N] 9 5.9%
Asp[D] 8 5.2%
Cys[C] 21 13.7%
Gln[Q] 7 4.6%
Glu[E] 9 5.9%
Gly[G] 13 8.5%
His[H] 7 4.6%
Ile[I] 4 2.6%
Leu[L] 4 2.6%
Lys[K] 13 8.5%
Met[M] 5 3.3%
Phe[F] 3 2.0%
Pro[P] 6 3.9%
Ser[S] 10 6.5%
Thr[T] 9 5.9%
Trp[W] 0 0.0%
Tyr[Y] 6 3.9%
Val[V] 6 3.9%
Total Length 153

Instability index
Instability index (II) 56.33
This classifies the protein as unstable

Atomic composition
Carbon 700
Hydrogen 1108
Nitrogen 220
Oxygen 229
Sulfur 26
Total number of atoms 2283
Formula = C700H1108N220O229S26

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 10190 M-1 cm-1
assuming NO Cys residues appear as half cystines 8940 M-1 cm-1
assuming all Cys residues are reduced 8940 M-1 cm-1
assuming all pairs of Cys residues form cystines 10190 M-1 cm-1

Aliphatic index
Aliphatic index 35.03

Coding Region Translation Calculations
Codon Bias 0.541
Codon Adaptation Index 0.421
Frequency of Optimal Codons 0.736
Hydropathicity of Protein -0.808
Aromaticity Score 0.059