DDI2/YFL061W 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] 18 8.0%
Arg[R] 13 5.8%
Asn[N] 12 5.3%
Asp[D] 14 6.2%
Cys[C] 3 1.3%
Gln[Q] 8 3.6%
Glu[E] 11 4.9%
Gly[G] 12 5.3%
His[H] 6 2.7%
Ile[I] 14 6.2%
Leu[L] 19 8.4%
Lys[K] 7 3.1%
Met[M] 3 1.3%
Phe[F] 9 4.0%
Pro[P] 11 4.9%
Ser[S] 13 5.8%
Thr[T] 20 8.9%
Trp[W] 3 1.3%
Tyr[Y] 9 4.0%
Val[V] 20 8.9%
Total Length 225

Instability index
Instability index (II) 35.53
This classifies the protein as stable

Atomic composition
Carbon 1124
Hydrogen 1752
Nitrogen 306
Oxygen 338
Sulfur 6
Total number of atoms 3526
Formula = C1124H1752N306O338S6

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 30035 M-1 cm-1
assuming NO Cys residues appear as half cystines 29910 M-1 cm-1
assuming all Cys residues are reduced 29910 M-1 cm-1
assuming all pairs of Cys residues form cystines 30035 M-1 cm-1

Aliphatic index
Aliphatic index 90.98

Coding Region Translation Calculations
Codon Bias 0.048
Codon Adaptation Index 0.124
Frequency of Optimal Codons 0.434
Hydropathicity of Protein -0.150
Aromaticity Score 0.093