CHS2/YBR038W 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] 66 6.9%
Arg[R] 49 5.1%
Asn[N] 50 5.2%
Asp[D] 48 5.0%
Cys[C] 12 1.2%
Gln[Q] 36 3.7%
Glu[E] 50 5.2%
Gly[G] 45 4.7%
His[H] 21 2.2%
Ile[I] 53 5.5%
Leu[L] 89 9.2%
Lys[K] 61 6.3%
Met[M] 24 2.5%
Phe[F] 57 5.9%
Pro[P] 43 4.5%
Ser[S] 89 9.2%
Thr[T] 50 5.2%
Trp[W] 17 1.8%
Tyr[Y] 43 4.5%
Val[V] 60 6.2%
Total Length 963

Instability index
Instability index (II) 43.48
This classifies the protein as unstable

Atomic composition
Carbon 4973
Hydrogen 7656
Nitrogen 1316
Oxygen 1428
Sulfur 36
Total number of atoms 15409
Formula = C4973H7656N1316O1428S36

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 158320 M-1 cm-1
assuming NO Cys residues appear as half cystines 157570 M-1 cm-1
assuming all Cys residues are reduced 157570 M-1 cm-1
assuming all pairs of Cys residues form cystines 158320 M-1 cm-1

Aliphatic index
Aliphatic index 82.43

Coding Region Translation Calculations
Codon Bias 0.141
Codon Adaptation Index 0.172
Frequency of Optimal Codons 0.486
Hydropathicity of Protein -0.261
Aromaticity Score 0.121