HSP82/YPL240C 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] 43 6.1%
Arg[R] 27 3.8%
Asn[N] 26 3.7%
Asp[D] 47 6.6%
Cys[C] 0 0.0%
Gln[Q] 22 3.1%
Glu[E] 95 13.4%
Gly[G] 24 3.4%
His[H] 4 0.6%
Ile[I] 49 6.9%
Leu[L] 66 9.3%
Lys[K] 77 10.9%
Met[M] 13 1.8%
Phe[F] 33 4.7%
Pro[P] 27 3.8%
Ser[S] 49 6.9%
Thr[T] 40 5.6%
Trp[W] 5 0.7%
Tyr[Y] 20 2.8%
Val[V] 42 5.9%
Total Length 709

Instability index
Instability index (II) 43.20
This classifies the protein as unstable

Atomic composition
Carbon 3641
Hydrogen 5798
Nitrogen 928
Oxygen 1151
Sulfur 13
Total number of atoms 11531
Formula = C3641H5798N928O1151S13

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 57300 M-1 cm-1

Aliphatic index
Aliphatic index 86.50

Coding Region Translation Calculations
Codon Bias 0.600
Codon Adaptation Index 0.518
Frequency of Optimal Codons 0.768
Hydropathicity of Protein -0.575
Aromaticity Score 0.082