PRE3/YJL001W 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] 17 7.9%
Arg[R] 8 3.7%
Asn[N] 8 3.7%
Asp[D] 14 6.5%
Cys[C] 4 1.9%
Gln[Q] 6 2.8%
Glu[E] 12 5.6%
Gly[G] 20 9.3%
His[H] 4 1.9%
Ile[I] 17 7.9%
Leu[L] 14 6.5%
Lys[K] 14 6.5%
Met[M] 4 1.9%
Phe[F] 6 2.8%
Pro[P] 4 1.9%
Ser[S] 16 7.4%
Thr[T] 17 7.9%
Trp[W] 2 0.9%
Tyr[Y] 12 5.6%
Val[V] 16 7.4%
Total Length 215

Instability index
Instability index (II) 14.93
This classifies the protein as stable

Atomic composition
Carbon 1043
Hydrogen 1639
Nitrogen 277
Oxygen 327
Sulfur 8
Total number of atoms 3294
Formula = C1043H1639N277O327S8

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 29130 M-1 cm-1
assuming NO Cys residues appear as half cystines 28880 M-1 cm-1
assuming all Cys residues are reduced 28880 M-1 cm-1
assuming all pairs of Cys residues form cystines 29130 M-1 cm-1

Aliphatic index
Aliphatic index 85.72

Coding Region Translation Calculations
Codon Bias 0.147
Codon Adaptation Index 0.172
Frequency of Optimal Codons 0.502
Hydropathicity of Protein -0.177
Aromaticity Score 0.093