YKL222C 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] 28 4.0%
Arg[R] 38 5.4%
Asn[N] 43 6.1%
Asp[D] 35 5.0%
Cys[C] 16 2.3%
Gln[Q] 25 3.5%
Glu[E] 48 6.8%
Gly[G] 24 3.4%
His[H] 25 3.5%
Ile[I] 54 7.7%
Leu[L] 78 11.1%
Lys[K] 51 7.2%
Met[M] 14 2.0%
Phe[F] 40 5.7%
Pro[P] 27 3.8%
Ser[S] 62 8.8%
Thr[T] 35 5.0%
Trp[W] 8 1.1%
Tyr[Y] 30 4.3%
Val[V] 24 3.4%
Total Length 705

Instability index
Instability index (II) 50.28
This classifies the protein as unstable

Atomic composition
Carbon 3702
Hydrogen 5754
Nitrogen 996
Oxygen 1067
Sulfur 30
Total number of atoms 11549
Formula = C3702H5754N996O1067S30

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 89700 M-1 cm-1
assuming NO Cys residues appear as half cystines 88700 M-1 cm-1
assuming all Cys residues are reduced 88700 M-1 cm-1
assuming all pairs of Cys residues form cystines 89700 M-1 cm-1

Aliphatic index
Aliphatic index 86.87

Coding Region Translation Calculations
Codon Bias -0.009
Codon Adaptation Index 0.132
Frequency of Optimal Codons 0.407
Hydropathicity of Protein -0.400
Aromaticity Score 0.111