SKI6/YGR195W 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] 12 4.9%
Arg[R] 18 7.3%
Asn[N] 14 5.7%
Asp[D] 13 5.3%
Cys[C] 0 0.0%
Gln[Q] 5 2.0%
Glu[E] 19 7.7%
Gly[G] 16 6.5%
His[H] 6 2.4%
Ile[I] 20 8.1%
Leu[L] 29 11.8%
Lys[K] 15 6.1%
Met[M] 9 3.7%
Phe[F] 5 2.0%
Pro[P] 7 2.8%
Ser[S] 24 9.8%
Thr[T] 12 4.9%
Trp[W] 1 0.4%
Tyr[Y] 5 2.0%
Val[V] 16 6.5%
Total Length 246

Instability index
Instability index (II) 46.51
This classifies the protein as unstable

Atomic composition
Carbon 1205
Hydrogen 1987
Nitrogen 347
Oxygen 371
Sulfur 9
Total number of atoms 3919
Formula = C1205H1987N347O371S9

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 12950 M-1 cm-1

Aliphatic index
Aliphatic index 101.42

Coding Region Translation Calculations
Codon Bias 0.112
Codon Adaptation Index 0.139
Frequency of Optimal Codons 0.462
Hydropathicity of Protein -0.283
Aromaticity Score 0.045