HPA2/YPR193C 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] 7 4.5%
Arg[R] 6 3.8%
Asn[N] 10 6.4%
Asp[D] 15 9.6%
Cys[C] 1 0.6%
Gln[Q] 4 2.6%
Glu[E] 9 5.8%
Gly[G] 9 5.8%
His[H] 2 1.3%
Ile[I] 9 5.8%
Leu[L] 9 5.8%
Lys[K] 14 9.0%
Met[M] 4 2.6%
Phe[F] 10 6.4%
Pro[P] 4 2.6%
Ser[S] 10 6.4%
Thr[T] 7 4.5%
Trp[W] 5 3.2%
Tyr[Y] 10 6.4%
Val[V] 11 7.1%
Total Length 156

Instability index
Instability index (II) 26.35
This classifies the protein as stable

Atomic composition
Carbon 835
Hydrogen 1243
Nitrogen 211
Oxygen 246
Sulfur 5
Total number of atoms 2540
Formula = C835H1243N211O246S5

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 42400 M-1 cm-1
assuming NO Cys residues appear as half cystines 42400 M-1 cm-1
assuming all Cys residues are reduced 42400 M-1 cm-1
assuming all pairs of Cys residues form cystines 42400 M-1 cm-1

Aliphatic index
Aliphatic index 69.94

Coding Region Translation Calculations
Codon Bias 0.044
Codon Adaptation Index 0.160
Frequency of Optimal Codons 0.456
Hydropathicity of Protein -0.576
Aromaticity Score 0.160