FUR4/YBR021W 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] 51 8.1%
Arg[R] 21 3.3%
Asn[N] 29 4.6%
Asp[D] 22 3.5%
Cys[C] 16 2.5%
Gln[Q] 15 2.4%
Glu[E] 24 3.8%
Gly[G] 37 5.8%
His[H] 11 1.7%
Ile[I] 46 7.3%
Leu[L] 54 8.5%
Lys[K] 29 4.6%
Met[M] 15 2.4%
Phe[F] 49 7.7%
Pro[P] 26 4.1%
Ser[S] 64 10.1%
Thr[T] 25 3.9%
Trp[W] 22 3.5%
Tyr[Y] 33 5.2%
Val[V] 44 7.0%
Total Length 633

Instability index
Instability index (II) 39.43
This classifies the protein as stable

Atomic composition
Carbon 3337
Hydrogen 4963
Nitrogen 813
Oxygen 892
Sulfur 31
Total number of atoms 10036
Formula = C3337H4963N813O892S31

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 171170 M-1 cm-1
assuming NO Cys residues appear as half cystines 170170 M-1 cm-1
assuming all Cys residues are reduced 170170 M-1 cm-1
assuming all pairs of Cys residues form cystines 171170 M-1 cm-1

Aliphatic index
Aliphatic index 89.83

Coding Region Translation Calculations
Codon Bias 0.182
Codon Adaptation Index 0.186
Frequency of Optimal Codons 0.513
Hydropathicity of Protein 0.235
Aromaticity Score 0.164