TDA2/YER071C 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] 3 2.4%
Arg[R] 2 1.6%
Asn[N] 13 10.3%
Asp[D] 8 6.3%
Cys[C] 1 0.8%
Gln[Q] 2 1.6%
Glu[E] 13 10.3%
Gly[G] 4 3.2%
His[H] 2 1.6%
Ile[I] 11 8.7%
Leu[L] 18 14.3%
Lys[K] 13 10.3%
Met[M] 2 1.6%
Phe[F] 2 1.6%
Pro[P] 2 1.6%
Ser[S] 14 11.1%
Thr[T] 6 4.8%
Trp[W] 2 1.6%
Tyr[Y] 5 4.0%
Val[V] 3 2.4%
Total Length 126

Instability index
Instability index (II) 52.71
This classifies the protein as unstable

Atomic composition
Carbon 641
Hydrogen 1026
Nitrogen 166
Oxygen 209
Sulfur 3
Total number of atoms 2045
Formula = C641H1026N166O209S3

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 18450 M-1 cm-1
assuming NO Cys residues appear as half cystines 18450 M-1 cm-1
assuming all Cys residues are reduced 18450 M-1 cm-1
assuming all pairs of Cys residues form cystines 18450 M-1 cm-1

Aliphatic index
Aliphatic index 99.05

Coding Region Translation Calculations
Codon Bias 0.020
Codon Adaptation Index 0.134
Frequency of Optimal Codons 0.434
Hydropathicity of Protein -0.578
Aromaticity Score 0.071