SAS3/YBL052C 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] 24 2.9%
Arg[R] 55 6.6%
Asn[N] 66 7.9%
Asp[D] 59 7.1%
Cys[C] 11 1.3%
Gln[Q] 24 2.9%
Glu[E] 75 9.0%
Gly[G] 30 3.6%
His[H] 17 2.0%
Ile[I] 58 7.0%
Leu[L] 66 7.9%
Lys[K] 69 8.3%
Met[M] 12 1.4%
Phe[F] 37 4.5%
Pro[P] 31 3.7%
Ser[S] 67 8.1%
Thr[T] 49 5.9%
Trp[W] 12 1.4%
Tyr[Y] 35 4.2%
Val[V] 34 4.1%
Total Length 831

Instability index
Instability index (II) 56.65
This classifies the protein as unstable

Atomic composition
Carbon 4312
Hydrogen 6723
Nitrogen 1201
Oxygen 1341
Sulfur 23
Total number of atoms 13600
Formula = C4312H6723N1201O1341S23

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 118775 M-1 cm-1
assuming NO Cys residues appear as half cystines 118150 M-1 cm-1
assuming all Cys residues are reduced 118150 M-1 cm-1
assuming all pairs of Cys residues form cystines 118775 M-1 cm-1

Aliphatic index
Aliphatic index 72.95

Coding Region Translation Calculations
Codon Bias -0.007
Codon Adaptation Index 0.132
Frequency of Optimal Codons 0.418
Hydropathicity of Protein -0.853
Aromaticity Score 0.101