RPS21A/YKR057W 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] 7 8.0%
Arg[R] 7 8.0%
Asn[N] 6 6.9%
Asp[D] 7 8.0%
Cys[C] 1 1.1%
Gln[Q] 3 3.4%
Glu[E] 6 6.9%
Gly[G] 6 6.9%
His[H] 1 1.1%
Ile[I] 4 4.6%
Leu[L] 7 8.0%
Lys[K] 5 5.7%
Met[M] 1 1.1%
Phe[F] 0 0.0%
Pro[P] 2 2.3%
Ser[S] 8 9.2%
Thr[T] 2 2.3%
Trp[W] 1 1.1%
Tyr[Y] 5 5.7%
Val[V] 8 9.2%
Total Length 87

Instability index
Instability index (II) 17.30
This classifies the protein as stable

Atomic composition
Carbon 420
Hydrogen 673
Nitrogen 125
Oxygen 138
Sulfur 2
Total number of atoms 1358
Formula = C420H673N125O138S2

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 12950 M-1 cm-1
assuming NO Cys residues appear as half cystines 12950 M-1 cm-1
assuming all Cys residues are reduced 12950 M-1 cm-1
assuming all pairs of Cys residues form cystines 12950 M-1 cm-1

Aliphatic index
Aliphatic index 84.02

Coding Region Translation Calculations
Codon Bias 0.651
Codon Adaptation Index 0.596
Frequency of Optimal Codons 0.788
Hydropathicity of Protein -0.653
Aromaticity Score 0.069