ALR2/YFL050C 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] 56 6.5%
Arg[R] 57 6.6%
Asn[N] 53 6.2%
Asp[D] 50 5.8%
Cys[C] 10 1.2%
Gln[Q] 31 3.6%
Glu[E] 59 6.9%
Gly[G] 40 4.7%
His[H] 21 2.4%
Ile[I] 39 4.5%
Leu[L] 66 7.7%
Lys[K] 44 5.1%
Met[M] 22 2.6%
Phe[F] 36 4.2%
Pro[P] 30 3.5%
Ser[S] 104 12.1%
Thr[T] 57 6.6%
Trp[W] 7 0.8%
Tyr[Y] 30 3.5%
Val[V] 46 5.4%
Total Length 858

Instability index
Instability index (II) 40.88
This classifies the protein as unstable

Atomic composition
Carbon 4203
Hydrogen 6600
Nitrogen 1206
Oxygen 1352
Sulfur 32
Total number of atoms 13393
Formula = C4203H6600N1206O1352S32

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 83825 M-1 cm-1
assuming NO Cys residues appear as half cystines 83200 M-1 cm-1
assuming all Cys residues are reduced 83200 M-1 cm-1
assuming all pairs of Cys residues form cystines 83825 M-1 cm-1

Aliphatic index
Aliphatic index 69.80

Coding Region Translation Calculations
Codon Bias 0.004
Codon Adaptation Index 0.122
Frequency of Optimal Codons 0.402
Hydropathicity of Protein -0.601
Aromaticity Score 0.085