YGR226C 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] 2 2.9%
Arg[R] 5 7.2%
Asn[N] 7 10.1%
Asp[D] 2 2.9%
Cys[C] 4 5.8%
Gln[Q] 3 4.3%
Glu[E] 1 1.4%
Gly[G] 3 4.3%
His[H] 2 2.9%
Ile[I] 7 10.1%
Leu[L] 5 7.2%
Lys[K] 1 1.4%
Met[M] 1 1.4%
Phe[F] 7 10.1%
Pro[P] 3 4.3%
Ser[S] 3 4.3%
Thr[T] 4 5.8%
Trp[W] 1 1.4%
Tyr[Y] 5 7.2%
Val[V] 3 4.3%
Total Length 69

Instability index
Instability index (II) 23.18
This classifies the protein as stable

Atomic composition
Carbon 379
Hydrogen 560
Nitrogen 100
Oxygen 98
Sulfur 5
Total number of atoms 1142
Formula = C379H560N100O98S5

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 13200 M-1 cm-1
assuming NO Cys residues appear as half cystines 12950 M-1 cm-1
assuming all Cys residues are reduced 12950 M-1 cm-1
assuming all pairs of Cys residues form cystines 13200 M-1 cm-1

Aliphatic index
Aliphatic index 83.33

Coding Region Translation Calculations
Codon Bias 0.057
Codon Adaptation Index 0.125
Frequency of Optimal Codons 0.463
Hydropathicity of Protein 0.019
Aromaticity Score 0.188