PRP19/YLL036C 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] 31 6.2%
Arg[R] 17 3.4%
Asn[N] 28 5.6%
Asp[D] 37 7.4%
Cys[C] 9 1.8%
Gln[Q] 18 3.6%
Glu[E] 33 6.6%
Gly[G] 21 4.2%
His[H] 5 1.0%
Ile[I] 32 6.4%
Leu[L] 50 9.9%
Lys[K] 38 7.6%
Met[M] 10 2.0%
Phe[F] 15 3.0%
Pro[P] 22 4.4%
Ser[S] 44 8.7%
Thr[T] 37 7.4%
Trp[W] 6 1.2%
Tyr[Y] 22 4.4%
Val[V] 28 5.6%
Total Length 503

Instability index
Instability index (II) 42.27
This classifies the protein as unstable

Atomic composition
Carbon 2508
Hydrogen 3958
Nitrogen 654
Oxygen 793
Sulfur 19
Total number of atoms 7932
Formula = C2508H3958N654O793S19

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 66280 M-1 cm-1
assuming NO Cys residues appear as half cystines 65780 M-1 cm-1
assuming all Cys residues are reduced 65780 M-1 cm-1
assuming all pairs of Cys residues form cystines 66280 M-1 cm-1

Aliphatic index
Aliphatic index 85.88

Coding Region Translation Calculations
Codon Bias -0.002
Codon Adaptation Index 0.117
Frequency of Optimal Codons 0.411
Hydropathicity of Protein -0.387
Aromaticity Score 0.085