HHF2/YNL030W 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] 6 5.8%
Arg[R] 14 13.6%
Asn[N] 1 1.0%
Asp[D] 3 2.9%
Cys[C] 0 0.0%
Gln[Q] 2 1.9%
Glu[E] 4 3.9%
Gly[G] 16 15.5%
His[H] 2 1.9%
Ile[I] 7 6.8%
Leu[L] 9 8.7%
Lys[K] 11 10.7%
Met[M] 1 1.0%
Phe[F] 2 1.9%
Pro[P] 1 1.0%
Ser[S] 6 5.8%
Thr[T] 6 5.8%
Trp[W] 0 0.0%
Tyr[Y] 4 3.9%
Val[V] 8 7.8%
Total Length 103

Instability index
Instability index (II) 50.21
This classifies the protein as unstable

Atomic composition
Carbon 500
Hydrogen 849
Nitrogen 163
Oxygen 137
Sulfur 1
Total number of atoms 1650
Formula = C500H849N163O137S1

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 5960 M-1 cm-1

Aliphatic index
Aliphatic index 88.93

Coding Region Translation Calculations
Codon Bias 0.704
Codon Adaptation Index 0.627
Frequency of Optimal Codons 0.814
Hydropathicity of Protein -0.504
Aromaticity Score 0.058