ISW1/YBR245C 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] 58 5.1%
Arg[R] 61 5.4%
Asn[N] 61 5.4%
Asp[D] 82 7.3%
Cys[C] 9 0.8%
Gln[Q] 46 4.1%
Glu[E] 108 9.6%
Gly[G] 51 4.5%
His[H] 22 1.9%
Ile[I] 63 5.6%
Leu[L] 124 11.0%
Lys[K] 119 10.5%
Met[M] 20 1.8%
Phe[F] 47 4.2%
Pro[P] 41 3.6%
Ser[S] 69 6.1%
Thr[T] 49 4.3%
Trp[W] 13 1.2%
Tyr[Y] 39 3.5%
Val[V] 47 4.2%
Total Length 1129

Instability index
Instability index (II) 40.89
This classifies the protein as unstable

Atomic composition
Carbon 5839
Hydrogen 9243
Nitrogen 1595
Oxygen 1774
Sulfur 29
Total number of atoms 18480
Formula = C5839H9243N1595O1774S29

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 130110 M-1 cm-1
assuming NO Cys residues appear as half cystines 129610 M-1 cm-1
assuming all Cys residues are reduced 129610 M-1 cm-1
assuming all pairs of Cys residues form cystines 130110 M-1 cm-1

Aliphatic index
Aliphatic index 81.81

Coding Region Translation Calculations
Codon Bias 0.125
Codon Adaptation Index 0.192
Frequency of Optimal Codons 0.483
Hydropathicity of Protein -0.742
Aromaticity Score 0.088