PXA1/YPL147W 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] 43 4.9%
Arg[R] 54 6.2%
Asn[N] 54 6.2%
Asp[D] 49 5.6%
Cys[C] 6 0.7%
Gln[Q] 25 2.9%
Glu[E] 39 4.5%
Gly[G] 43 4.9%
His[H] 14 1.6%
Ile[I] 77 8.9%
Leu[L] 107 12.3%
Lys[K] 65 7.5%
Met[M] 19 2.2%
Phe[F] 49 5.6%
Pro[P] 29 3.3%
Ser[S] 63 7.2%
Thr[T] 41 4.7%
Trp[W] 9 1.0%
Tyr[Y] 34 3.9%
Val[V] 50 5.7%
Total Length 870

Instability index
Instability index (II) 34.80
This classifies the protein as stable

Atomic composition
Carbon 4556
Hydrogen 7231
Nitrogen 1213
Oxygen 1264
Sulfur 25
Total number of atoms 14289
Formula = C4556H7231N1213O1264S25

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 100535 M-1 cm-1
assuming NO Cys residues appear as half cystines 100160 M-1 cm-1
assuming all Cys residues are reduced 100160 M-1 cm-1
assuming all pairs of Cys residues form cystines 100535 M-1 cm-1

Aliphatic index
Aliphatic index 104.09

Coding Region Translation Calculations
Codon Bias 0.044
Codon Adaptation Index 0.131
Frequency of Optimal Codons 0.431
Hydropathicity of Protein -0.106
Aromaticity Score 0.106