PSE1/YMR308C 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] 103 9.5%
Arg[R] 32 2.9%
Asn[N] 52 4.8%
Asp[D] 71 6.5%
Cys[C] 15 1.4%
Gln[Q] 50 4.6%
Glu[E] 77 7.1%
Gly[G] 38 3.5%
His[H] 16 1.5%
Ile[I] 84 7.7%
Leu[L] 132 12.1%
Lys[K] 54 5.0%
Met[M] 25 2.3%
Phe[F] 43 3.9%
Pro[P] 46 4.2%
Ser[S] 82 7.5%
Thr[T] 60 5.5%
Trp[W] 11 1.0%
Tyr[Y] 30 2.8%
Val[V] 68 6.2%
Total Length 1089

Instability index
Instability index (II) 45.34
This classifies the protein as unstable

Atomic composition
Carbon 5424
Hydrogen 8588
Nitrogen 1384
Oxygen 1660
Sulfur 40
Total number of atoms 17096
Formula = C5424H8588N1384O1660S40

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 106075 M-1 cm-1
assuming NO Cys residues appear as half cystines 105200 M-1 cm-1
assuming all Cys residues are reduced 105200 M-1 cm-1
assuming all pairs of Cys residues form cystines 106075 M-1 cm-1

Aliphatic index
Aliphatic index 104.92

Coding Region Translation Calculations
Codon Bias 0.151
Codon Adaptation Index 0.180
Frequency of Optimal Codons 0.494
Hydropathicity of Protein 0.027
Aromaticity Score 0.077