IRC5/YFR038W 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] 43 5.0%
Arg[R] 31 3.6%
Asn[N] 73 8.6%
Asp[D] 66 7.7%
Cys[C] 8 0.9%
Gln[Q] 33 3.9%
Glu[E] 54 6.3%
Gly[G] 39 4.6%
His[H] 14 1.6%
Ile[I] 52 6.1%
Leu[L] 107 12.5%
Lys[K] 79 9.3%
Met[M] 22 2.6%
Phe[F] 35 4.1%
Pro[P] 22 2.6%
Ser[S] 58 6.8%
Thr[T] 50 5.9%
Trp[W] 8 0.9%
Tyr[Y] 19 2.2%
Val[V] 40 4.7%
Total Length 853

Instability index
Instability index (II) 32.79
This classifies the protein as stable

Atomic composition
Carbon 4288
Hydrogen 6869
Nitrogen 1167
Oxygen 1327
Sulfur 30
Total number of atoms 13681
Formula = C4288H6869N1167O1327S30

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 72810 M-1 cm-1
assuming NO Cys residues appear as half cystines 72310 M-1 cm-1
assuming all Cys residues are reduced 72310 M-1 cm-1
assuming all pairs of Cys residues form cystines 72810 M-1 cm-1

Aliphatic index
Aliphatic index 91.34

Coding Region Translation Calculations
Codon Bias 0.065
Codon Adaptation Index 0.157
Frequency of Optimal Codons 0.450
Hydropathicity of Protein -0.471
Aromaticity Score 0.073