XRN1/YGL173C 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] 66 4.3%
Arg[R] 65 4.3%
Asn[N] 89 5.8%
Asp[D] 93 6.1%
Cys[C] 6 0.4%
Gln[Q] 63 4.1%
Glu[E] 113 7.4%
Gly[G] 82 5.4%
His[H] 43 2.8%
Ile[I] 95 6.2%
Leu[L] 146 9.6%
Lys[K] 138 9.0%
Met[M] 36 2.4%
Phe[F] 78 5.1%
Pro[P] 91 6.0%
Ser[S] 107 7.0%
Thr[T] 73 4.8%
Trp[W] 13 0.9%
Tyr[Y] 59 3.9%
Val[V] 72 4.7%
Total Length 1528

Instability index
Instability index (II) 42.86
This classifies the protein as unstable

Atomic composition
Carbon 7894
Hydrogen 12308
Nitrogen 2112
Oxygen 2332
Sulfur 42
Total number of atoms 24688
Formula = C7894H12308N2112O2332S42

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 159785 M-1 cm-1
assuming NO Cys residues appear as half cystines 159410 M-1 cm-1
assuming all Cys residues are reduced 159410 M-1 cm-1
assuming all pairs of Cys residues form cystines 159785 M-1 cm-1

Aliphatic index
Aliphatic index 79.50

Coding Region Translation Calculations
Codon Bias 0.137
Codon Adaptation Index 0.194
Frequency of Optimal Codons 0.492
Hydropathicity of Protein -0.602
Aromaticity Score 0.098