PTC7/YHR076W 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] 25 7.3%
Arg[R] 14 4.1%
Asn[N] 17 5.0%
Asp[D] 27 7.9%
Cys[C] 3 0.9%
Gln[Q] 12 3.5%
Glu[E] 17 5.0%
Gly[G] 25 7.3%
His[H] 4 1.2%
Ile[I] 21 6.1%
Leu[L] 23 6.7%
Lys[K] 28 8.2%
Met[M] 3 0.9%
Phe[F] 17 5.0%
Pro[P] 11 3.2%
Ser[S] 35 10.2%
Thr[T] 20 5.8%
Trp[W] 2 0.6%
Tyr[Y] 14 4.1%
Val[V] 25 7.3%
Total Length 343

Instability index
Instability index (II) 31.43
This classifies the protein as stable

Atomic composition
Carbon 1676
Hydrogen 2628
Nitrogen 452
Oxygen 530
Sulfur 6
Total number of atoms 5292
Formula = C1676H2628N452O530S6

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 31985 M-1 cm-1
assuming NO Cys residues appear as half cystines 31860 M-1 cm-1
assuming all Cys residues are reduced 31860 M-1 cm-1
assuming all pairs of Cys residues form cystines 31985 M-1 cm-1

Aliphatic index
Aliphatic index 78.45

Coding Region Translation Calculations
Codon Bias 0.145
Codon Adaptation Index 0.173
Frequency of Optimal Codons 0.497
Hydropathicity of Protein -0.401
Aromaticity Score 0.096