TOA1/YOR194C 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] 13 4.5%
Arg[R] 7 2.4%
Asn[N] 36 12.6%
Asp[D] 23 8.0%
Cys[C] 2 0.7%
Gln[Q] 11 3.8%
Glu[E] 38 13.3%
Gly[G] 13 4.5%
His[H] 1 0.3%
Ile[I] 18 6.3%
Leu[L] 18 6.3%
Lys[K] 22 7.7%
Met[M] 2 0.7%
Phe[F] 6 2.1%
Pro[P] 6 2.1%
Ser[S] 17 5.9%
Thr[T] 25 8.7%
Trp[W] 4 1.4%
Tyr[Y] 4 1.4%
Val[V] 20 7.0%
Total Length 286

Instability index
Instability index (II) 41.97
This classifies the protein as unstable

Atomic composition
Carbon 1373
Hydrogen 2182
Nitrogen 382
Oxygen 502
Sulfur 4
Total number of atoms 4443
Formula = C1373H2182N382O502S4

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 28085 M-1 cm-1
assuming NO Cys residues appear as half cystines 27960 M-1 cm-1
assuming all Cys residues are reduced 27960 M-1 cm-1
assuming all pairs of Cys residues form cystines 28085 M-1 cm-1

Aliphatic index
Aliphatic index 73.92

Coding Region Translation Calculations
Codon Bias -0.025
Codon Adaptation Index 0.118
Frequency of Optimal Codons 0.429
Hydropathicity of Protein -0.947
Aromaticity Score 0.049