RPL21B/YPL079W 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] 11 6.9%
Arg[R] 14 8.8%
Asn[N] 7 4.4%
Asp[D] 3 1.9%
Cys[C] 1 0.6%
Gln[Q] 9 5.6%
Glu[E] 8 5.0%
Gly[G] 12 7.5%
His[H] 6 3.8%
Ile[I] 9 5.6%
Leu[L] 7 4.4%
Lys[K] 17 10.6%
Met[M] 5 3.1%
Phe[F] 5 3.1%
Pro[P] 6 3.8%
Ser[S] 9 5.6%
Thr[T] 7 4.4%
Trp[W] 0 0.0%
Tyr[Y] 8 5.0%
Val[V] 16 10.0%
Total Length 160

Instability index
Instability index (II) 39.73
This classifies the protein as stable

Atomic composition
Carbon 810
Hydrogen 1315
Nitrogen 247
Oxygen 223
Sulfur 6
Total number of atoms 2601
Formula = C810H1315N247O223S6

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 11920 M-1 cm-1
assuming NO Cys residues appear as half cystines 11920 M-1 cm-1
assuming all Cys residues are reduced 11920 M-1 cm-1
assuming all pairs of Cys residues form cystines 11920 M-1 cm-1

Aliphatic index
Aliphatic index 74.88

Coding Region Translation Calculations
Codon Bias 0.760
Codon Adaptation Index 0.733
Frequency of Optimal Codons 0.858
Hydropathicity of Protein -0.624
Aromaticity Score 0.081