TRP1/YDR007W 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] 14 6.2%
Arg[R] 7 3.1%
Asn[N] 13 5.8%
Asp[D] 15 6.7%
Cys[C] 4 1.8%
Gln[Q] 7 3.1%
Glu[E] 12 5.4%
Gly[G] 21 9.4%
His[H] 3 1.3%
Ile[I] 14 6.2%
Leu[L] 23 10.3%
Lys[K] 15 6.7%
Met[M] 2 0.9%
Phe[F] 8 3.6%
Pro[P] 11 4.9%
Ser[S] 20 8.9%
Thr[T] 7 3.1%
Trp[W] 3 1.3%
Tyr[Y] 4 1.8%
Val[V] 21 9.4%
Total Length 224

Instability index
Instability index (II) 38.15
This classifies the protein as stable

Atomic composition
Carbon 1074
Hydrogen 1711
Nitrogen 289
Oxygen 330
Sulfur 6
Total number of atoms 3410
Formula = C1074H1711N289O330S6

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 22710 M-1 cm-1
assuming NO Cys residues appear as half cystines 22460 M-1 cm-1
assuming all Cys residues are reduced 22460 M-1 cm-1
assuming all pairs of Cys residues form cystines 22710 M-1 cm-1

Aliphatic index
Aliphatic index 97.86

Coding Region Translation Calculations
Codon Bias 0.045
Codon Adaptation Index 0.121
Frequency of Optimal Codons 0.425
Hydropathicity of Protein -0.084
Aromaticity Score 0.067