VIK1/YPL253C 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] 19 2.9%
Arg[R] 26 4.0%
Asn[N] 56 8.7%
Asp[D] 38 5.9%
Cys[C] 6 0.9%
Gln[Q] 42 6.5%
Glu[E] 56 8.7%
Gly[G] 10 1.5%
His[H] 16 2.5%
Ile[I] 43 6.6%
Leu[L] 78 12.1%
Lys[K] 69 10.7%
Met[M] 15 2.3%
Phe[F] 29 4.5%
Pro[P] 17 2.6%
Ser[S] 60 9.3%
Thr[T] 27 4.2%
Trp[W] 2 0.3%
Tyr[Y] 16 2.5%
Val[V] 22 3.4%
Total Length 647

Instability index
Instability index (II) 46.60
This classifies the protein as unstable

Atomic composition
Carbon 3338
Hydrogen 5360
Nitrogen 926
Oxygen 1037
Sulfur 21
Total number of atoms 10682
Formula = C3338H5360N926O1037S21

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 35215 M-1 cm-1
assuming NO Cys residues appear as half cystines 34840 M-1 cm-1
assuming all Cys residues are reduced 34840 M-1 cm-1
assuming all pairs of Cys residues form cystines 35215 M-1 cm-1

Aliphatic index
Aliphatic index 85.73

Coding Region Translation Calculations
Codon Bias 0.055
Codon Adaptation Index 0.154
Frequency of Optimal Codons 0.454
Hydropathicity of Protein -0.755
Aromaticity Score 0.073