FRE7/YOL152W 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] 29 4.7%
Arg[R] 30 4.8%
Asn[N] 23 3.7%
Asp[D] 25 4.0%
Cys[C] 13 2.1%
Gln[Q] 18 2.9%
Glu[E] 27 4.4%
Gly[G] 38 6.1%
His[H] 16 2.6%
Ile[I] 56 9.0%
Leu[L] 59 9.5%
Lys[K] 33 5.3%
Met[M] 13 2.1%
Phe[F] 40 6.5%
Pro[P] 29 4.7%
Ser[S] 54 8.7%
Thr[T] 28 4.5%
Trp[W] 11 1.8%
Tyr[Y] 34 5.5%
Val[V] 44 7.1%
Total Length 620

Instability index
Instability index (II) 42.47
This classifies the protein as unstable

Atomic composition
Carbon 3274
Hydrogen 5013
Nitrogen 827
Oxygen 882
Sulfur 26
Total number of atoms 10022
Formula = C3274H5013N827O882S26

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 111910 M-1 cm-1
assuming NO Cys residues appear as half cystines 111160 M-1 cm-1
assuming all Cys residues are reduced 111160 M-1 cm-1
assuming all pairs of Cys residues form cystines 111910 M-1 cm-1

Aliphatic index
Aliphatic index 97.60

Coding Region Translation Calculations
Codon Bias 0.095
Codon Adaptation Index 0.144
Frequency of Optimal Codons 0.466
Hydropathicity of Protein 0.102
Aromaticity Score 0.137