Q0182 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] 2 1.5%
Arg[R] 9 6.7%
Asn[N] 17 12.7%
Asp[D] 2 1.5%
Cys[C] 0 0.0%
Gln[Q] 0 0.0%
Glu[E] 2 1.5%
Gly[G] 10 7.5%
His[H] 2 1.5%
Ile[I] 14 10.4%
Leu[L] 3 2.2%
Lys[K] 7 5.2%
Met[M] 14 10.4%
Phe[F] 15 11.2%
Pro[P] 5 3.7%
Ser[S] 7 5.2%
Thr[T] 4 3.0%
Trp[W] 1 0.7%
Tyr[Y] 14 10.4%
Val[V] 6 4.5%
Total Length 134

Instability index
Instability index (II) 42.62
This classifies the protein as unstable

Atomic composition
Carbon 756
Hydrogen 1110
Nitrogen 190
Oxygen 185
Sulfur 14
Total number of atoms 2255
Formula = C756H1110N190O185S14

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 26360 M-1 cm-1

Aliphatic index
Aliphatic index 63.96

Coding Region Translation Calculations
Codon Bias -0.324
Codon Adaptation Index 0.064
Frequency of Optimal Codons 0.311
Hydropathicity of Protein -0.115
Aromaticity Score 0.224