UTP20/YBL004W 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] 115 4.6%
Arg[R] 121 4.9%
Asn[N] 138 5.5%
Asp[D] 139 5.6%
Cys[C] 19 0.8%
Gln[Q] 84 3.4%
Glu[E] 173 6.9%
Gly[G] 71 2.8%
His[H] 55 2.2%
Ile[I] 189 7.6%
Leu[L] 331 13.3%
Lys[K] 179 7.2%
Met[M] 52 2.1%
Phe[F] 132 5.3%
Pro[P] 70 2.8%
Ser[S] 232 9.3%
Thr[T] 137 5.5%
Trp[W] 22 0.9%
Tyr[Y] 92 3.7%
Val[V] 142 5.7%
Total Length 2493

Instability index
Instability index (II) 42.79
This classifies the protein as unstable

Atomic composition
Carbon 13009
Hydrogen 20587
Nitrogen 3389
Oxygen 3801
Sulfur 71
Total number of atoms 40857
Formula = C13009H20587N3389O3801S71

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 259205 M-1 cm-1
assuming NO Cys residues appear as half cystines 258080 M-1 cm-1
assuming all Cys residues are reduced 258080 M-1 cm-1
assuming all pairs of Cys residues form cystines 259205 M-1 cm-1

Aliphatic index
Aliphatic index 102.48

Coding Region Translation Calculations
Codon Bias 0.067
Codon Adaptation Index 0.146
Frequency of Optimal Codons 0.448
Hydropathicity of Protein -0.169
Aromaticity Score 0.099