TUB2/YFL037W 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] 31 6.8%
Arg[R] 19 4.2%
Asn[N] 27 5.9%
Asp[D] 29 6.3%
Cys[C] 6 1.3%
Gln[Q] 23 5.0%
Glu[E] 36 7.9%
Gly[G] 34 7.4%
His[H] 11 2.4%
Ile[I] 21 4.6%
Leu[L] 32 7.0%
Lys[K] 15 3.3%
Met[M] 15 3.3%
Phe[F] 25 5.5%
Pro[P] 18 3.9%
Ser[S] 37 8.1%
Thr[T] 26 5.7%
Trp[W] 5 1.1%
Tyr[Y] 14 3.1%
Val[V] 33 7.2%
Total Length 457

Instability index
Instability index (II) 33.62
This classifies the protein as stable

Atomic composition
Carbon 2237
Hydrogen 3426
Nitrogen 606
Oxygen 715
Sulfur 21
Total number of atoms 7005
Formula = C2237H3426N606O715S21

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 48735 M-1 cm-1
assuming NO Cys residues appear as half cystines 48360 M-1 cm-1
assuming all Cys residues are reduced 48360 M-1 cm-1
assuming all pairs of Cys residues form cystines 48735 M-1 cm-1

Aliphatic index
Aliphatic index 72.95

Coding Region Translation Calculations
Codon Bias 0.359
Codon Adaptation Index 0.271
Frequency of Optimal Codons 0.620
Hydropathicity of Protein -0.373
Aromaticity Score 0.096