SUP35/YDR172W 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] 43 6.3%
Arg[R] 18 2.6%
Asn[N] 45 6.6%
Asp[D] 30 4.4%
Cys[C] 5 0.7%
Gln[Q] 53 7.7%
Glu[E] 57 8.3%
Gly[G] 60 8.8%
His[H] 13 1.9%
Ile[I] 32 4.7%
Leu[L] 35 5.1%
Lys[K] 66 9.6%
Met[M] 19 2.8%
Phe[F] 16 2.3%
Pro[P] 30 4.4%
Ser[S] 35 5.1%
Thr[T] 39 5.7%
Trp[W] 4 0.6%
Tyr[Y] 35 5.1%
Val[V] 50 7.3%
Total Length 685

Instability index
Instability index (II) 41.43
This classifies the protein as unstable

Atomic composition
Carbon 3357
Hydrogen 5279
Nitrogen 933
Oxygen 1067
Sulfur 24
Total number of atoms 10660
Formula = C3357H5279N933O1067S24

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 74400 M-1 cm-1
assuming NO Cys residues appear as half cystines 74150 M-1 cm-1
assuming all Cys residues are reduced 74150 M-1 cm-1
assuming all pairs of Cys residues form cystines 74400 M-1 cm-1

Aliphatic index
Aliphatic index 65.59

Coding Region Translation Calculations
Codon Bias 0.359
Codon Adaptation Index 0.315
Frequency of Optimal Codons 0.630
Hydropathicity of Protein -0.797
Aromaticity Score 0.080