KCS1/YDR017C 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] 45 4.3%
Arg[R] 54 5.1%
Asn[N] 84 8.0%
Asp[D] 76 7.2%
Cys[C] 16 1.5%
Gln[Q] 41 3.9%
Glu[E] 75 7.1%
Gly[G] 45 4.3%
His[H] 38 3.6%
Ile[I] 54 5.1%
Leu[L] 85 8.1%
Lys[K] 84 8.0%
Met[M] 20 1.9%
Phe[F] 37 3.5%
Pro[P] 44 4.2%
Ser[S] 112 10.7%
Thr[T] 58 5.5%
Trp[W] 8 0.8%
Tyr[Y] 30 2.9%
Val[V] 44 4.2%
Total Length 1050

Instability index
Instability index (II) 49.28
This classifies the protein as unstable

Atomic composition
Carbon 5182
Hydrogen 8163
Nitrogen 1505
Oxygen 1678
Sulfur 36
Total number of atoms 16564
Formula = C5182H8163N1505O1678S36

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 89700 M-1 cm-1
assuming NO Cys residues appear as half cystines 88700 M-1 cm-1
assuming all Cys residues are reduced 88700 M-1 cm-1
assuming all pairs of Cys residues form cystines 89700 M-1 cm-1

Aliphatic index
Aliphatic index 68.07

Coding Region Translation Calculations
Codon Bias 0.016
Codon Adaptation Index 0.144
Frequency of Optimal Codons 0.422
Hydropathicity of Protein -0.866
Aromaticity Score 0.071