PHR1/YOR386W 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] 25 4.4%
Arg[R] 29 5.1%
Asn[N] 36 6.4%
Asp[D] 29 5.1%
Cys[C] 9 1.6%
Gln[Q] 21 3.7%
Glu[E] 31 5.5%
Gly[G] 24 4.2%
His[H] 13 2.3%
Ile[I] 34 6.0%
Leu[L] 51 9.0%
Lys[K] 49 8.7%
Met[M] 18 3.2%
Phe[F] 25 4.4%
Pro[P] 22 3.9%
Ser[S] 46 8.1%
Thr[T] 30 5.3%
Trp[W] 16 2.8%
Tyr[Y] 31 5.5%
Val[V] 26 4.6%
Total Length 565

Instability index
Instability index (II) 39.18
This classifies the protein as stable

Atomic composition
Carbon 2994
Hydrogen 4606
Nitrogen 800
Oxygen 850
Sulfur 27
Total number of atoms 9277
Formula = C2994H4606N800O850S27

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 134690 M-1 cm-1
assuming NO Cys residues appear as half cystines 134190 M-1 cm-1
assuming all Cys residues are reduced 134190 M-1 cm-1
assuming all pairs of Cys residues form cystines 134690 M-1 cm-1

Aliphatic index
Aliphatic index 76.44

Coding Region Translation Calculations
Codon Bias 0.051
Codon Adaptation Index 0.147
Frequency of Optimal Codons 0.443
Hydropathicity of Protein -0.535
Aromaticity Score 0.127