SAS10/YDL153C 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] 37 6.1%
Arg[R] 32 5.2%
Asn[N] 35 5.7%
Asp[D] 65 10.7%
Cys[C] 1 0.2%
Gln[Q] 24 3.9%
Glu[E] 93 15.2%
Gly[G] 35 5.7%
His[H] 8 1.3%
Ile[I] 24 3.9%
Leu[L] 43 7.0%
Lys[K] 65 10.7%
Met[M] 11 1.8%
Phe[F] 19 3.1%
Pro[P] 11 1.8%
Ser[S] 41 6.7%
Thr[T] 24 3.9%
Trp[W] 3 0.5%
Tyr[Y] 19 3.1%
Val[V] 20 3.3%
Total Length 610

Instability index
Instability index (II) 53.93
This classifies the protein as unstable

Atomic composition
Carbon 3005
Hydrogen 4733
Nitrogen 849
Oxygen 1070
Sulfur 12
Total number of atoms 9669
Formula = C3005H4733N849O1070S12

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 44810 M-1 cm-1
assuming NO Cys residues appear as half cystines 44810 M-1 cm-1
assuming all Cys residues are reduced 44810 M-1 cm-1
assuming all pairs of Cys residues form cystines 44810 M-1 cm-1

Aliphatic index
Aliphatic index 58.41

Coding Region Translation Calculations
Codon Bias 0.146
Codon Adaptation Index 0.220
Frequency of Optimal Codons 0.503
Hydropathicity of Protein -1.299
Aromaticity Score 0.067