SKO1/YNL167C 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] 22 3.4%
Arg[R] 26 4.0%
Asn[N] 82 12.7%
Asp[D] 24 3.7%
Cys[C] 3 0.5%
Gln[Q] 21 3.2%
Glu[E] 29 4.5%
Gly[G] 28 4.3%
His[H] 14 2.2%
Ile[I] 34 5.3%
Leu[L] 44 6.8%
Lys[K] 39 6.0%
Met[M] 8 1.2%
Phe[F] 16 2.5%
Pro[P] 46 7.1%
Ser[S] 110 17.0%
Thr[T] 57 8.8%
Trp[W] 0 0.0%
Tyr[Y] 12 1.9%
Val[V] 32 4.9%
Total Length 647

Instability index
Instability index (II) 54.82
This classifies the protein as unstable

Atomic composition
Carbon 2987
Hydrogen 4813
Nitrogen 895
Oxygen 1036
Sulfur 11
Total number of atoms 9742
Formula = C2987H4813N895O1036S11

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 18005 M-1 cm-1
assuming NO Cys residues appear as half cystines 17880 M-1 cm-1
assuming all Cys residues are reduced 17880 M-1 cm-1
assuming all pairs of Cys residues form cystines 18005 M-1 cm-1

Aliphatic index
Aliphatic index 64.76

Coding Region Translation Calculations
Codon Bias 0.004
Codon Adaptation Index 0.113
Frequency of Optimal Codons 0.408
Hydropathicity of Protein -0.814
Aromaticity Score 0.043