TRK2/YKR050W 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] 45 5.1%
Arg[R] 55 6.2%
Asn[N] 34 3.8%
Asp[D] 44 4.9%
Cys[C] 11 1.2%
Gln[Q] 36 4.0%
Glu[E] 34 3.8%
Gly[G] 46 5.2%
His[H] 21 2.4%
Ile[I] 56 6.3%
Leu[L] 90 10.1%
Lys[K] 56 6.3%
Met[M] 23 2.6%
Phe[F] 57 6.4%
Pro[P] 45 5.1%
Ser[S] 93 10.5%
Thr[T] 54 6.1%
Trp[W] 12 1.3%
Tyr[Y] 28 3.1%
Val[V] 49 5.5%
Total Length 889

Instability index
Instability index (II) 50.37
This classifies the protein as unstable

Atomic composition
Carbon 4567
Hydrogen 7146
Nitrogen 1234
Oxygen 1291
Sulfur 34
Total number of atoms 14272
Formula = C4567H7146N1234O1291S34

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 108345 M-1 cm-1
assuming NO Cys residues appear as half cystines 107720 M-1 cm-1
assuming all Cys residues are reduced 107720 M-1 cm-1
assuming all pairs of Cys residues form cystines 108345 M-1 cm-1

Aliphatic index
Aliphatic index 85.10

Coding Region Translation Calculations
Codon Bias 0.131
Codon Adaptation Index 0.129
Frequency of Optimal Codons 0.475
Hydropathicity of Protein -0.213
Aromaticity Score 0.109