SCH9/YHR205W 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 5.2%
Arg[R] 24 2.9%
Asn[N] 79 9.6%
Asp[D] 56 6.8%
Cys[C] 9 1.1%
Gln[Q] 38 4.6%
Glu[E] 41 5.0%
Gly[G] 52 6.3%
His[H] 31 3.8%
Ile[I] 39 4.7%
Leu[L] 60 7.3%
Lys[K] 49 5.9%
Met[M] 20 2.4%
Phe[F] 43 5.2%
Pro[P] 39 4.7%
Ser[S] 84 10.2%
Thr[T] 54 6.6%
Trp[W] 8 1.0%
Tyr[Y] 20 2.4%
Val[V] 35 4.2%
Total Length 824

Instability index
Instability index (II) 33.89
This classifies the protein as stable

Atomic composition
Carbon 4006
Hydrogen 6158
Nitrogen 1132
Oxygen 1294
Sulfur 29
Total number of atoms 12619
Formula = C4006H6158N1132O1294S29

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 74300 M-1 cm-1
assuming NO Cys residues appear as half cystines 73800 M-1 cm-1
assuming all Cys residues are reduced 73800 M-1 cm-1
assuming all pairs of Cys residues form cystines 74300 M-1 cm-1

Aliphatic index
Aliphatic index 64.39

Coding Region Translation Calculations
Codon Bias 0.105
Codon Adaptation Index 0.170
Frequency of Optimal Codons 0.475
Hydropathicity of Protein -0.679
Aromaticity Score 0.086