CBS1/YDL069C 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] 5 2.2%
Arg[R] 13 5.7%
Asn[N] 24 10.5%
Asp[D] 7 3.1%
Cys[C] 2 0.9%
Gln[Q] 5 2.2%
Glu[E] 12 5.2%
Gly[G] 8 3.5%
His[H] 4 1.7%
Ile[I] 26 11.4%
Leu[L] 27 11.8%
Lys[K] 22 9.6%
Met[M] 7 3.1%
Phe[F] 9 3.9%
Pro[P] 7 3.1%
Ser[S] 13 5.7%
Thr[T] 20 8.7%
Trp[W] 2 0.9%
Tyr[Y] 6 2.6%
Val[V] 10 4.4%
Total Length 229

Instability index
Instability index (II) 28.72
This classifies the protein as stable

Atomic composition
Carbon 1194
Hydrogen 1957
Nitrogen 329
Oxygen 336
Sulfur 9
Total number of atoms 3825
Formula = C1194H1957N329O336S9

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 20065 M-1 cm-1
assuming NO Cys residues appear as half cystines 19940 M-1 cm-1
assuming all Cys residues are reduced 19940 M-1 cm-1
assuming all pairs of Cys residues form cystines 20065 M-1 cm-1

Aliphatic index
Aliphatic index 105.11

Coding Region Translation Calculations
Codon Bias -0.015
Codon Adaptation Index 0.104
Frequency of Optimal Codons 0.418
Hydropathicity of Protein -0.259
Aromaticity Score 0.074