UBC13/YDR092W 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] 12 7.8%
Arg[R] 7 4.6%
Asn[N] 7 4.6%
Asp[D] 11 7.2%
Cys[C] 1 0.7%
Gln[Q] 5 3.3%
Glu[E] 13 8.5%
Gly[G] 5 3.3%
His[H] 2 1.3%
Ile[I] 11 7.2%
Leu[L] 17 11.1%
Lys[K] 13 8.5%
Met[M] 2 1.3%
Phe[F] 3 2.0%
Pro[P] 15 9.8%
Ser[S] 6 3.9%
Thr[T] 7 4.6%
Trp[W] 3 2.0%
Tyr[Y] 6 3.9%
Val[V] 7 4.6%
Total Length 153

Instability index
Instability index (II) 41.74
This classifies the protein as unstable

Atomic composition
Carbon 791
Hydrogen 1248
Nitrogen 206
Oxygen 233
Sulfur 3
Total number of atoms 2481
Formula = C791H1248N206O233S3

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 25440 M-1 cm-1
assuming NO Cys residues appear as half cystines 25440 M-1 cm-1
assuming all Cys residues are reduced 25440 M-1 cm-1
assuming all pairs of Cys residues form cystines 25440 M-1 cm-1

Aliphatic index
Aliphatic index 92.48

Coding Region Translation Calculations
Codon Bias 0.058
Codon Adaptation Index 0.128
Frequency of Optimal Codons 0.432
Hydropathicity of Protein -0.529
Aromaticity Score 0.078