BTN2/YGR142W 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] 21 5.1%
Arg[R] 19 4.6%
Asn[N] 23 5.6%
Asp[D] 28 6.8%
Cys[C] 5 1.2%
Gln[Q] 14 3.4%
Glu[E] 56 13.7%
Gly[G] 14 3.4%
His[H] 7 1.7%
Ile[I] 25 6.1%
Leu[L] 34 8.3%
Lys[K] 46 11.2%
Met[M] 4 1.0%
Phe[F] 15 3.7%
Pro[P] 16 3.9%
Ser[S] 45 11.0%
Thr[T] 8 2.0%
Trp[W] 1 0.2%
Tyr[Y] 14 3.4%
Val[V] 15 3.7%
Total Length 410

Instability index
Instability index (II) 61.59
This classifies the protein as unstable

Atomic composition
Carbon 2060
Hydrogen 3269
Nitrogen 565
Oxygen 683
Sulfur 9
Total number of atoms 6586
Formula = C2060H3269N565O683S9

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 26610 M-1 cm-1
assuming NO Cys residues appear as half cystines 26360 M-1 cm-1
assuming all Cys residues are reduced 26360 M-1 cm-1
assuming all pairs of Cys residues form cystines 26610 M-1 cm-1

Aliphatic index
Aliphatic index 71.85

Coding Region Translation Calculations
Codon Bias 0.115
Codon Adaptation Index 0.183
Frequency of Optimal Codons 0.484
Hydropathicity of Protein -0.971
Aromaticity Score 0.073