PUF4/YGL014W 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] 51 5.7%
Arg[R] 21 2.4%
Asn[N] 90 10.1%
Asp[D] 48 5.4%
Cys[C] 11 1.2%
Gln[Q] 43 4.8%
Glu[E] 38 4.3%
Gly[G] 45 5.1%
His[H] 29 3.3%
Ile[I] 52 5.9%
Leu[L] 76 8.6%
Lys[K] 52 5.9%
Met[M] 26 2.9%
Phe[F] 32 3.6%
Pro[P] 76 8.6%
Ser[S] 86 9.7%
Thr[T] 49 5.5%
Trp[W] 2 0.2%
Tyr[Y] 23 2.6%
Val[V] 38 4.3%
Total Length 888

Instability index
Instability index (II) 50.92
This classifies the protein as unstable

Atomic composition
Carbon 4284
Hydrogen 6720
Nitrogen 1196
Oxygen 1352
Sulfur 37
Total number of atoms 13589
Formula = C4284H6720N1196O1352S37

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 45895 M-1 cm-1
assuming NO Cys residues appear as half cystines 45270 M-1 cm-1
assuming all Cys residues are reduced 45270 M-1 cm-1
assuming all pairs of Cys residues form cystines 45895 M-1 cm-1

Aliphatic index
Aliphatic index 74.37

Coding Region Translation Calculations
Codon Bias 0.065
Codon Adaptation Index 0.152
Frequency of Optimal Codons 0.444
Hydropathicity of Protein -0.552
Aromaticity Score 0.064