PAU21/YOR394W 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] 21 12.8%
Arg[R] 7 4.3%
Asn[N] 6 3.7%
Asp[D] 5 3.0%
Cys[C] 1 0.6%
Gln[Q] 3 1.8%
Glu[E] 8 4.9%
Gly[G] 9 5.5%
His[H] 3 1.8%
Ile[I] 14 8.5%
Leu[L] 12 7.3%
Lys[K] 5 3.0%
Met[M] 3 1.8%
Phe[F] 6 3.7%
Pro[P] 9 5.5%
Ser[S] 10 6.1%
Thr[T] 19 11.6%
Trp[W] 1 0.6%
Tyr[Y] 8 4.9%
Val[V] 14 8.5%
Total Length 164

Instability index
Instability index (II) 21.67
This classifies the protein as stable

Atomic composition
Carbon 802
Hydrogen 1266
Nitrogen 206
Oxygen 237
Sulfur 4
Total number of atoms 2515
Formula = C802H1266N206O237S4

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 17420 M-1 cm-1
assuming NO Cys residues appear as half cystines 17420 M-1 cm-1
assuming all Cys residues are reduced 17420 M-1 cm-1
assuming all pairs of Cys residues form cystines 17420 M-1 cm-1

Aliphatic index
Aliphatic index 99.39

Coding Region Translation Calculations
Codon Bias 0.507
Codon Adaptation Index 0.372
Frequency of Optimal Codons 0.706
Hydropathicity of Protein 0.256
Aromaticity Score 0.091