ACO2/YJL200C 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 7.6%
Arg[R] 27 3.4%
Asn[N] 50 6.3%
Asp[D] 47 6.0%
Cys[C] 9 1.1%
Gln[Q] 25 3.2%
Glu[E] 45 5.7%
Gly[G] 65 8.2%
His[H] 16 2.0%
Ile[I] 51 6.5%
Leu[L] 67 8.5%
Lys[K] 61 7.7%
Met[M] 17 2.2%
Phe[F] 32 4.1%
Pro[P] 41 5.2%
Ser[S] 54 6.8%
Thr[T] 54 6.8%
Trp[W] 9 1.1%
Tyr[Y] 21 2.7%
Val[V] 38 4.8%
Total Length 789

Instability index
Instability index (II) 27.67
This classifies the protein as stable

Atomic composition
Carbon 3841
Hydrogen 6055
Nitrogen 1047
Oxygen 1178
Sulfur 26
Total number of atoms 12147
Formula = C3841H6055N1047O1178S26

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 81290 M-1 cm-1
assuming NO Cys residues appear as half cystines 80790 M-1 cm-1
assuming all Cys residues are reduced 80790 M-1 cm-1
assuming all pairs of Cys residues form cystines 81290 M-1 cm-1

Aliphatic index
Aliphatic index 79.90

Coding Region Translation Calculations
Codon Bias 0.230
Codon Adaptation Index 0.219
Frequency of Optimal Codons 0.541
Hydropathicity of Protein -0.389
Aromaticity Score 0.079