HSE1/YHL002W 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] 30 6.6%
Arg[R] 20 4.4%
Asn[N] 28 6.2%
Asp[D] 26 5.8%
Cys[C] 2 0.4%
Gln[Q] 36 8.0%
Glu[E] 32 7.1%
Gly[G] 16 3.5%
His[H] 10 2.2%
Ile[I] 19 4.2%
Leu[L] 43 9.5%
Lys[K] 32 7.1%
Met[M] 12 2.7%
Phe[F] 6 1.3%
Pro[P] 31 6.9%
Ser[S] 37 8.2%
Thr[T] 21 4.6%
Trp[W] 3 0.7%
Tyr[Y] 19 4.2%
Val[V] 29 6.4%
Total Length 452

Instability index
Instability index (II) 60.77
This classifies the protein as unstable

Atomic composition
Carbon 2241
Hydrogen 3569
Nitrogen 631
Oxygen 710
Sulfur 14
Total number of atoms 7165
Formula = C2241H3569N631O710S14

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 44935 M-1 cm-1
assuming NO Cys residues appear as half cystines 44810 M-1 cm-1
assuming all Cys residues are reduced 44810 M-1 cm-1
assuming all pairs of Cys residues form cystines 44935 M-1 cm-1

Aliphatic index
Aliphatic index 78.74

Coding Region Translation Calculations
Codon Bias 0.049
Codon Adaptation Index 0.127
Frequency of Optimal Codons 0.430
Hydropathicity of Protein -0.735
Aromaticity Score 0.062