PKH2/YOL100W 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] 55 5.1%
Arg[R] 47 4.3%
Asn[N] 73 6.8%
Asp[D] 61 5.6%
Cys[C] 5 0.5%
Gln[Q] 40 3.7%
Glu[E] 51 4.7%
Gly[G] 43 4.0%
His[H] 19 1.8%
Ile[I] 62 5.7%
Leu[L] 88 8.1%
Lys[K] 120 11.1%
Met[M] 24 2.2%
Phe[F] 38 3.5%
Pro[P] 63 5.8%
Ser[S] 121 11.2%
Thr[T] 85 7.9%
Trp[W] 3 0.3%
Tyr[Y] 41 3.8%
Val[V] 42 3.9%
Total Length 1081

Instability index
Instability index (II) 44.53
This classifies the protein as unstable

Atomic composition
Carbon 5365
Hydrogen 8614
Nitrogen 1496
Oxygen 1666
Sulfur 29
Total number of atoms 17170
Formula = C5365H8614N1496O1666S29

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 77840 M-1 cm-1
assuming NO Cys residues appear as half cystines 77590 M-1 cm-1
assuming all Cys residues are reduced 77590 M-1 cm-1
assuming all pairs of Cys residues form cystines 77840 M-1 cm-1

Aliphatic index
Aliphatic index 70.47

Coding Region Translation Calculations
Codon Bias 0.016
Codon Adaptation Index 0.135
Frequency of Optimal Codons 0.419
Hydropathicity of Protein -0.744
Aromaticity Score 0.076