RPE1/YJL121C 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] 23 9.7%
Arg[R] 6 2.5%
Asn[N] 7 2.9%
Asp[D] 18 7.6%
Cys[C] 5 2.1%
Gln[Q] 5 2.1%
Glu[E] 13 5.5%
Gly[G] 16 6.7%
His[H] 9 3.8%
Ile[I] 14 5.9%
Leu[L] 18 7.6%
Lys[K] 19 8.0%
Met[M] 10 4.2%
Phe[F] 13 5.5%
Pro[P] 16 6.7%
Ser[S] 11 4.6%
Thr[T] 12 5.0%
Trp[W] 2 0.8%
Tyr[Y] 1 0.4%
Val[V] 20 8.4%
Total Length 238

Instability index
Instability index (II) 37.49
This classifies the protein as stable

Atomic composition
Carbon 1161
Hydrogen 1835
Nitrogen 307
Oxygen 337
Sulfur 15
Total number of atoms 3655
Formula = C1161H1835N307O337S15

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 12740 M-1 cm-1
assuming NO Cys residues appear as half cystines 12490 M-1 cm-1
assuming all Cys residues are reduced 12490 M-1 cm-1
assuming all pairs of Cys residues form cystines 12740 M-1 cm-1

Aliphatic index
Aliphatic index 86.47

Coding Region Translation Calculations
Codon Bias 0.300
Codon Adaptation Index 0.297
Frequency of Optimal Codons 0.584
Hydropathicity of Protein -0.034
Aromaticity Score 0.067