ICL1/YER065C 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] 57 10.2%
Arg[R] 26 4.7%
Asn[N] 19 3.4%
Asp[D] 38 6.8%
Cys[C] 6 1.1%
Gln[Q] 25 4.5%
Glu[E] 38 6.8%
Gly[G] 36 6.5%
His[H] 17 3.1%
Ile[I] 31 5.6%
Leu[L] 40 7.2%
Lys[K] 40 7.2%
Met[M] 17 3.1%
Phe[F] 24 4.3%
Pro[P] 22 3.9%
Ser[S] 34 6.1%
Thr[T] 30 5.4%
Trp[W] 11 2.0%
Tyr[Y] 15 2.7%
Val[V] 31 5.6%
Total Length 557

Instability index
Instability index (II) 34.47
This classifies the protein as stable

Atomic composition
Carbon 2772
Hydrogen 4314
Nitrogen 764
Oxygen 833
Sulfur 23
Total number of atoms 8706
Formula = C2772H4314N764O833S23

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 83225 M-1 cm-1
assuming NO Cys residues appear as half cystines 82850 M-1 cm-1
assuming all Cys residues are reduced 82850 M-1 cm-1
assuming all pairs of Cys residues form cystines 83225 M-1 cm-1

Aliphatic index
Aliphatic index 76.09

Coding Region Translation Calculations
Codon Bias 0.268
Codon Adaptation Index 0.251
Frequency of Optimal Codons 0.563
Hydropathicity of Protein -0.423
Aromaticity Score 0.090