TOP2/YNL088W 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] 65 4.6%
Arg[R] 60 4.2%
Asn[N] 80 5.6%
Asp[D] 91 6.4%
Cys[C] 9 0.6%
Gln[Q] 50 3.5%
Glu[E] 133 9.3%
Gly[G] 78 5.5%
His[H] 23 1.6%
Ile[I] 116 8.1%
Leu[L] 115 8.1%
Lys[K] 159 11.1%
Met[M] 28 2.0%
Phe[F] 52 3.6%
Pro[P] 56 3.9%
Ser[S] 94 6.6%
Thr[T] 83 5.8%
Trp[W] 15 1.1%
Tyr[Y] 60 4.2%
Val[V] 61 4.3%
Total Length 1428

Instability index
Instability index (II) 40.03
This classifies the protein as unstable

Atomic composition
Carbon 7327
Hydrogen 11604
Nitrogen 1958
Oxygen 2244
Sulfur 37
Total number of atoms 23170
Formula = C7327H11604N1958O2244S37

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 172400 M-1 cm-1
assuming NO Cys residues appear as half cystines 171900 M-1 cm-1
assuming all Cys residues are reduced 171900 M-1 cm-1
assuming all pairs of Cys residues form cystines 172400 M-1 cm-1

Aliphatic index
Aliphatic index 80.03

Coding Region Translation Calculations
Codon Bias 0.084
Codon Adaptation Index 0.175
Frequency of Optimal Codons 0.473
Hydropathicity of Protein -0.697
Aromaticity Score 0.089