PCS60/YBR222C 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] 35 6.4%
Arg[R] 22 4.1%
Asn[N] 35 6.4%
Asp[D] 24 4.4%
Cys[C] 5 0.9%
Gln[Q] 13 2.4%
Glu[E] 25 4.6%
Gly[G] 32 5.9%
His[H] 12 2.2%
Ile[I] 29 5.3%
Leu[L] 43 7.9%
Lys[K] 40 7.4%
Met[M] 14 2.6%
Phe[F] 35 6.4%
Pro[P] 35 6.4%
Ser[S] 36 6.6%
Thr[T] 41 7.6%
Trp[W] 2 0.4%
Tyr[Y] 18 3.3%
Val[V] 47 8.7%
Total Length 543

Instability index
Instability index (II) 31.38
This classifies the protein as stable

Atomic composition
Carbon 2737
Hydrogen 4285
Nitrogen 723
Oxygen 785
Sulfur 19
Total number of atoms 8549
Formula = C2737H4285N723O785S19

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 38070 M-1 cm-1
assuming NO Cys residues appear as half cystines 37820 M-1 cm-1
assuming all Cys residues are reduced 37820 M-1 cm-1
assuming all pairs of Cys residues form cystines 38070 M-1 cm-1

Aliphatic index
Aliphatic index 83.26

Coding Region Translation Calculations
Codon Bias 0.243
Codon Adaptation Index 0.197
Frequency of Optimal Codons 0.552
Hydropathicity of Protein -0.171
Aromaticity Score 0.101