FRE1/YLR214W 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] 41 6.0%
Arg[R] 31 4.5%
Asn[N] 37 5.4%
Asp[D] 23 3.4%
Cys[C] 17 2.5%
Gln[Q] 15 2.2%
Glu[E] 30 4.4%
Gly[G] 30 4.4%
His[H] 16 2.3%
Ile[I] 48 7.0%
Leu[L] 64 9.3%
Lys[K] 47 6.9%
Met[M] 19 2.8%
Phe[F] 46 6.7%
Pro[P] 22 3.2%
Ser[S] 62 9.0%
Thr[T] 37 5.4%
Trp[W] 16 2.3%
Tyr[Y] 33 4.8%
Val[V] 52 7.6%
Total Length 686

Instability index
Instability index (II) 51.63
This classifies the protein as unstable

Atomic composition
Carbon 3621
Hydrogen 5562
Nitrogen 926
Oxygen 977
Sulfur 36
Total number of atoms 11122
Formula = C3621H5562N926O977S36

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 138170 M-1 cm-1
assuming NO Cys residues appear as half cystines 137170 M-1 cm-1
assuming all Cys residues are reduced 137170 M-1 cm-1
assuming all pairs of Cys residues form cystines 138170 M-1 cm-1

Aliphatic index
Aliphatic index 91.63

Coding Region Translation Calculations
Codon Bias 0.054
Codon Adaptation Index 0.145
Frequency of Optimal Codons 0.444
Hydropathicity of Protein 0.054
Aromaticity Score 0.138