PUF2/YPR042C 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] 44 4.1%
Arg[R] 45 4.2%
Asn[N] 144 13.4%
Asp[D] 42 3.9%
Cys[C] 12 1.1%
Gln[Q] 64 6.0%
Glu[E] 34 3.2%
Gly[G] 43 4.0%
His[H] 19 1.8%
Ile[I] 60 5.6%
Leu[L] 110 10.2%
Lys[K] 44 4.1%
Met[M] 12 1.1%
Phe[F] 32 3.0%
Pro[P] 65 6.0%
Ser[S] 127 11.8%
Thr[T] 78 7.3%
Trp[W] 7 0.7%
Tyr[Y] 35 3.3%
Val[V] 58 5.4%
Total Length 1075

Instability index
Instability index (II) 42.66
This classifies the protein as unstable

Atomic composition
Carbon 5204
Hydrogen 8245
Nitrogen 1507
Oxygen 1676
Sulfur 24
Total number of atoms 16656
Formula = C5204H8245N1507O1676S24

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 91400 M-1 cm-1
assuming NO Cys residues appear as half cystines 90650 M-1 cm-1
assuming all Cys residues are reduced 90650 M-1 cm-1
assuming all pairs of Cys residues form cystines 91400 M-1 cm-1

Aliphatic index
Aliphatic index 81.41

Coding Region Translation Calculations
Codon Bias 0.022
Codon Adaptation Index 0.119
Frequency of Optimal Codons 0.418
Hydropathicity of Protein -0.563
Aromaticity Score 0.069