HHO1/YPL127C 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] 25 9.7%
Arg[R] 4 1.6%
Asn[N] 9 3.5%
Asp[D] 5 1.9%
Cys[C] 1 0.4%
Gln[Q] 4 1.6%
Glu[E] 15 5.8%
Gly[G] 14 5.4%
His[H] 0 0.0%
Ile[I] 11 4.3%
Leu[L] 16 6.2%
Lys[K] 58 22.5%
Met[M] 3 1.2%
Phe[F] 7 2.7%
Pro[P] 15 5.8%
Ser[S] 33 12.8%
Thr[T] 18 7.0%
Trp[W] 0 0.0%
Tyr[Y] 6 2.3%
Val[V] 14 5.4%
Total Length 258

Instability index
Instability index (II) 26.90
This classifies the protein as stable

Atomic composition
Carbon 1239
Hydrogen 2097
Nitrogen 341
Oxygen 369
Sulfur 4
Total number of atoms 4050
Formula = C1239H2097N341O369S4

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 8940 M-1 cm-1
assuming NO Cys residues appear as half cystines 8940 M-1 cm-1
assuming all Cys residues are reduced 8940 M-1 cm-1
assuming all pairs of Cys residues form cystines 8940 M-1 cm-1

Aliphatic index
Aliphatic index 66.24

Coding Region Translation Calculations
Codon Bias 0.167
Codon Adaptation Index 0.170
Frequency of Optimal Codons 0.506
Hydropathicity of Protein -0.753
Aromaticity Score 0.050