HSP150/YJL159W 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] 75 18.2%
Arg[R] 3 0.7%
Asn[N] 5 1.2%
Asp[D] 22 5.3%
Cys[C] 4 1.0%
Gln[Q] 41 9.9%
Glu[E] 4 1.0%
Gly[G] 35 8.5%
His[H] 2 0.5%
Ile[I] 24 5.8%
Leu[L] 14 3.4%
Lys[K] 18 4.4%
Met[M] 2 0.5%
Phe[F] 5 1.2%
Pro[P] 12 2.9%
Ser[S] 40 9.7%
Thr[T] 70 16.9%
Trp[W] 2 0.5%
Tyr[Y] 8 1.9%
Val[V] 27 6.5%
Total Length 413

Instability index
Instability index (II) 26.88
This classifies the protein as stable

Atomic composition
Carbon 1750
Hydrogen 2854
Nitrogen 492
Oxygen 630
Sulfur 6
Total number of atoms 5732
Formula = C1750H2854N492O630S6

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 23170 M-1 cm-1
assuming NO Cys residues appear as half cystines 22920 M-1 cm-1
assuming all Cys residues are reduced 22920 M-1 cm-1
assuming all pairs of Cys residues form cystines 23170 M-1 cm-1

Aliphatic index
Aliphatic index 73.00

Coding Region Translation Calculations
Codon Bias 0.679
Codon Adaptation Index 0.621
Frequency of Optimal Codons 0.809
Hydropathicity of Protein -0.075
Aromaticity Score 0.036