GAL4/YPL248C 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 4.9%
Arg[R] 36 4.1%
Asn[N] 62 7.0%
Asp[D] 45 5.1%
Cys[C] 18 2.0%
Gln[Q] 46 5.2%
Glu[E] 40 4.5%
Gly[G] 29 3.3%
His[H] 17 1.9%
Ile[I] 56 6.4%
Leu[L] 95 10.8%
Lys[K] 47 5.3%
Met[M] 19 2.2%
Phe[F] 38 4.3%
Pro[P] 46 5.2%
Ser[S] 100 11.4%
Thr[T] 66 7.5%
Trp[W] 12 1.4%
Tyr[Y] 27 3.1%
Val[V] 39 4.4%
Total Length 881

Instability index
Instability index (II) 46.47
This classifies the protein as unstable

Atomic composition
Carbon 4406
Hydrogen 6926
Nitrogen 1190
Oxygen 1353
Sulfur 37
Total number of atoms 13912
Formula = C4406H6926N1190O1353S37

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 107355 M-1 cm-1
assuming NO Cys residues appear as half cystines 106230 M-1 cm-1
assuming all Cys residues are reduced 106230 M-1 cm-1
assuming all pairs of Cys residues form cystines 107355 M-1 cm-1

Aliphatic index
Aliphatic index 84.56

Coding Region Translation Calculations
Codon Bias 0.009
Codon Adaptation Index 0.116
Frequency of Optimal Codons 0.411
Hydropathicity of Protein -0.330
Aromaticity Score 0.087