TRK1/YJL129C 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] 52 4.2%
Arg[R] 79 6.4%
Asn[N] 83 6.7%
Asp[D] 92 7.4%
Cys[C] 9 0.7%
Gln[Q] 41 3.3%
Glu[E] 63 5.1%
Gly[G] 70 5.7%
His[H] 39 3.2%
Ile[I] 75 6.1%
Leu[L] 99 8.0%
Lys[K] 85 6.9%
Met[M] 28 2.3%
Phe[F] 55 4.5%
Pro[P] 50 4.0%
Ser[S] 124 10.0%
Thr[T] 77 6.2%
Trp[W] 16 1.3%
Tyr[Y] 44 3.6%
Val[V] 54 4.4%
Total Length 1235

Instability index
Instability index (II) 42.54
This classifies the protein as unstable

Atomic composition
Carbon 6212
Hydrogen 9697
Nitrogen 1775
Oxygen 1915
Sulfur 37
Total number of atoms 19636
Formula = C6212H9697N1775O1915S37

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 154060 M-1 cm-1
assuming NO Cys residues appear as half cystines 153560 M-1 cm-1
assuming all Cys residues are reduced 153560 M-1 cm-1
assuming all pairs of Cys residues form cystines 154060 M-1 cm-1

Aliphatic index
Aliphatic index 71.84

Coding Region Translation Calculations
Codon Bias 0.024
Codon Adaptation Index 0.140
Frequency of Optimal Codons 0.421
Hydropathicity of Protein -0.694
Aromaticity Score 0.093