FRS2/YFL022C 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] 27 5.4%
Arg[R] 19 3.8%
Asn[N] 26 5.2%
Asp[D] 35 7.0%
Cys[C] 1 0.2%
Gln[Q] 25 5.0%
Glu[E] 38 7.6%
Gly[G] 28 5.6%
His[H] 12 2.4%
Ile[I] 27 5.4%
Leu[L] 58 11.5%
Lys[K] 41 8.2%
Met[M] 14 2.8%
Phe[F] 26 5.2%
Pro[P] 20 4.0%
Ser[S] 31 6.2%
Thr[T] 30 6.0%
Trp[W] 6 1.2%
Tyr[Y] 15 3.0%
Val[V] 24 4.8%
Total Length 503

Instability index
Instability index (II) 29.65
This classifies the protein as stable

Atomic composition
Carbon 2579
Hydrogen 4038
Nitrogen 682
Oxygen 777
Sulfur 15
Total number of atoms 8091
Formula = C2579H4038N682O777S15

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 55350 M-1 cm-1
assuming NO Cys residues appear as half cystines 55350 M-1 cm-1
assuming all Cys residues are reduced 55350 M-1 cm-1
assuming all pairs of Cys residues form cystines 55350 M-1 cm-1

Aliphatic index
Aliphatic index 85.11

Coding Region Translation Calculations
Codon Bias 0.403
Codon Adaptation Index 0.314
Frequency of Optimal Codons 0.646
Hydropathicity of Protein -0.474
Aromaticity Score 0.093