SIN3/YOL004W 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] 86 5.6%
Arg[R] 57 3.7%
Asn[N] 90 5.9%
Asp[D] 96 6.2%
Cys[C] 9 0.6%
Gln[Q] 116 7.6%
Glu[E] 120 7.8%
Gly[G] 59 3.8%
His[H] 47 3.1%
Ile[I] 95 6.2%
Leu[L] 122 7.9%
Lys[K] 105 6.8%
Met[M] 24 1.6%
Phe[F] 61 4.0%
Pro[P] 98 6.4%
Ser[S] 132 8.6%
Thr[T] 87 5.7%
Trp[W] 14 0.9%
Tyr[Y] 49 3.2%
Val[V] 69 4.5%
Total Length 1536

Instability index
Instability index (II) 53.40
This classifies the protein as unstable

Atomic composition
Carbon 7726
Hydrogen 12024
Nitrogen 2126
Oxygen 2443
Sulfur 33
Total number of atoms 24352
Formula = C7726H12024N2126O2443S33

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 150510 M-1 cm-1
assuming NO Cys residues appear as half cystines 150010 M-1 cm-1
assuming all Cys residues are reduced 150010 M-1 cm-1
assuming all pairs of Cys residues form cystines 150510 M-1 cm-1

Aliphatic index
Aliphatic index 73.72

Coding Region Translation Calculations
Codon Bias 0.067
Codon Adaptation Index 0.150
Frequency of Optimal Codons 0.455
Hydropathicity of Protein -0.743
Aromaticity Score 0.081