UBC6/YER100W 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] 14 5.6%
Arg[R] 11 4.4%
Asn[N] 15 6.0%
Asp[D] 15 6.0%
Cys[C] 1 0.4%
Gln[Q] 7 2.8%
Glu[E] 19 7.6%
Gly[G] 13 5.2%
His[H] 5 2.0%
Ile[I] 16 6.4%
Leu[L] 20 8.0%
Lys[K] 19 7.6%
Met[M] 7 2.8%
Phe[F] 10 4.0%
Pro[P] 18 7.2%
Ser[S] 17 6.8%
Thr[T] 21 8.4%
Trp[W] 3 1.2%
Tyr[Y] 10 4.0%
Val[V] 9 3.6%
Total Length 250

Instability index
Instability index (II) 39.14
This classifies the protein as stable

Atomic composition
Carbon 1265
Hydrogen 1973
Nitrogen 337
Oxygen 389
Sulfur 8
Total number of atoms 3972
Formula = C1265H1973N337O389S8

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 31400 M-1 cm-1
assuming NO Cys residues appear as half cystines 31400 M-1 cm-1
assuming all Cys residues are reduced 31400 M-1 cm-1
assuming all pairs of Cys residues form cystines 31400 M-1 cm-1

Aliphatic index
Aliphatic index 72.20

Coding Region Translation Calculations
Codon Bias 0.104
Codon Adaptation Index 0.148
Frequency of Optimal Codons 0.471
Hydropathicity of Protein -0.635
Aromaticity Score 0.092