ARX1/YDR101C 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] 35 5.9%
Arg[R] 23 3.9%
Asn[N] 23 3.9%
Asp[D] 31 5.2%
Cys[C] 9 1.5%
Gln[Q] 27 4.6%
Glu[E] 34 5.7%
Gly[G] 38 6.4%
His[H] 15 2.5%
Ile[I] 38 6.4%
Leu[L] 68 11.5%
Lys[K] 40 6.7%
Met[M] 9 1.5%
Phe[F] 12 2.0%
Pro[P] 27 4.6%
Ser[S] 51 8.6%
Thr[T] 52 8.8%
Trp[W] 6 1.0%
Tyr[Y] 15 2.5%
Val[V] 40 6.7%
Total Length 593

Instability index
Instability index (II) 40.68
This classifies the protein as unstable

Atomic composition
Carbon 2883
Hydrogen 4662
Nitrogen 788
Oxygen 892
Sulfur 18
Total number of atoms 9243
Formula = C2883H4662N788O892S18

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 55850 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 55850 M-1 cm-1

Aliphatic index
Aliphatic index 95.18

Coding Region Translation Calculations
Codon Bias 0.267
Codon Adaptation Index 0.238
Frequency of Optimal Codons 0.561
Hydropathicity of Protein -0.231
Aromaticity Score 0.056