PCT1/YGR202C 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] 16 3.8%
Arg[R] 28 6.6%
Asn[N] 38 9.0%
Asp[D] 35 8.3%
Cys[C] 4 0.9%
Gln[Q] 17 4.0%
Glu[E] 34 8.0%
Gly[G] 13 3.1%
His[H] 7 1.7%
Ile[I] 17 4.0%
Leu[L] 37 8.7%
Lys[K] 47 11.1%
Met[M] 4 0.9%
Phe[F] 19 4.5%
Pro[P] 19 4.5%
Ser[S] 27 6.4%
Thr[T] 34 8.0%
Trp[W] 3 0.7%
Tyr[Y] 11 2.6%
Val[V] 14 3.3%
Total Length 424

Instability index
Instability index (II) 32.29
This classifies the protein as stable

Atomic composition
Carbon 2154
Hydrogen 3429
Nitrogen 627
Oxygen 690
Sulfur 8
Total number of atoms 6908
Formula = C2154H3429N627O690S8

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 33140 M-1 cm-1
assuming NO Cys residues appear as half cystines 32890 M-1 cm-1
assuming all Cys residues are reduced 32890 M-1 cm-1
assuming all pairs of Cys residues form cystines 33140 M-1 cm-1

Aliphatic index
Aliphatic index 63.02

Coding Region Translation Calculations
Codon Bias 0.106
Codon Adaptation Index 0.157
Frequency of Optimal Codons 0.477
Hydropathicity of Protein -1.151
Aromaticity Score 0.078