LYS4/YDR234W 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] 60 8.7%
Arg[R] 20 2.9%
Asn[N] 39 5.6%
Asp[D] 33 4.8%
Cys[C] 9 1.3%
Gln[Q] 25 3.6%
Glu[E] 41 5.9%
Gly[G] 58 8.4%
His[H] 16 2.3%
Ile[I] 46 6.6%
Leu[L] 62 8.9%
Lys[K] 53 7.6%
Met[M] 9 1.3%
Phe[F] 19 2.7%
Pro[P] 34 4.9%
Ser[S] 50 7.2%
Thr[T] 39 5.6%
Trp[W] 11 1.6%
Tyr[Y] 17 2.5%
Val[V] 52 7.5%
Total Length 693

Instability index
Instability index (II) 39.43
This classifies the protein as stable

Atomic composition
Carbon 3349
Hydrogen 5327
Nitrogen 913
Oxygen 1012
Sulfur 18
Total number of atoms 10619
Formula = C3349H5327N913O1012S18

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 86330 M-1 cm-1
assuming NO Cys residues appear as half cystines 85830 M-1 cm-1
assuming all Cys residues are reduced 85830 M-1 cm-1
assuming all pairs of Cys residues form cystines 86330 M-1 cm-1

Aliphatic index
Aliphatic index 91.20

Coding Region Translation Calculations
Codon Bias 0.232
Codon Adaptation Index 0.200
Frequency of Optimal Codons 0.541
Hydropathicity of Protein -0.211
Aromaticity Score 0.068