YIL171W 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] 8 7.3%
Arg[R] 4 3.7%
Asn[N] 7 6.4%
Asp[D] 7 6.4%
Cys[C] 1 0.9%
Gln[Q] 2 1.8%
Glu[E] 3 2.8%
Gly[G] 10 9.2%
His[H] 1 0.9%
Ile[I] 6 5.5%
Leu[L] 9 8.3%
Lys[K] 6 5.5%
Met[M] 2 1.8%
Phe[F] 6 5.5%
Pro[P] 4 3.7%
Ser[S] 12 11.0%
Thr[T] 13 11.9%
Trp[W] 1 0.9%
Tyr[Y] 2 1.8%
Val[V] 5 4.6%
Total Length 109

Instability index
Instability index (II) 32.76
This classifies the protein as stable

Atomic composition
Carbon 510
Hydrogen 807
Nitrogen 139
Oxygen 166
Sulfur 3
Total number of atoms 1625
Formula = C510H807N139O166S3

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 8480 M-1 cm-1
assuming NO Cys residues appear as half cystines 8480 M-1 cm-1
assuming all Cys residues are reduced 8480 M-1 cm-1
assuming all pairs of Cys residues form cystines 8480 M-1 cm-1

Aliphatic index
Aliphatic index 74.31

Coding Region Translation Calculations
Codon Bias 0.248
Codon Adaptation Index 0.192
Frequency of Optimal Codons 0.547
Hydropathicity of Protein -0.220
Aromaticity Score 0.083