REX2/YLR059C 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] 17 6.3%
Arg[R] 17 6.3%
Asn[N] 11 4.1%
Asp[D] 14 5.2%
Cys[C] 4 1.5%
Gln[Q] 13 4.8%
Glu[E] 20 7.4%
Gly[G] 10 3.7%
His[H] 10 3.7%
Ile[I] 18 6.7%
Leu[L] 23 8.6%
Lys[K] 15 5.6%
Met[M] 9 3.3%
Phe[F] 7 2.6%
Pro[P] 15 5.6%
Ser[S] 22 8.2%
Thr[T] 12 4.5%
Trp[W] 4 1.5%
Tyr[Y] 10 3.7%
Val[V] 18 6.7%
Total Length 269

Instability index
Instability index (II) 50.86
This classifies the protein as unstable

Atomic composition
Carbon 1367
Hydrogen 2157
Nitrogen 383
Oxygen 406
Sulfur 13
Total number of atoms 4326
Formula = C1367H2157N383O406S13

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 37150 M-1 cm-1
assuming NO Cys residues appear as half cystines 36900 M-1 cm-1
assuming all Cys residues are reduced 36900 M-1 cm-1
assuming all pairs of Cys residues form cystines 37150 M-1 cm-1

Aliphatic index
Aliphatic index 85.17

Coding Region Translation Calculations
Codon Bias 0.154
Codon Adaptation Index 0.144
Frequency of Optimal Codons 0.496
Hydropathicity of Protein -0.443
Aromaticity Score 0.078