PAP2/YOL115W 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] 32 5.5%
Arg[R] 25 4.3%
Asn[N] 33 5.7%
Asp[D] 49 8.4%
Cys[C] 3 0.5%
Gln[Q] 12 2.1%
Glu[E] 54 9.2%
Gly[G] 31 5.3%
His[H] 18 3.1%
Ile[I] 46 7.9%
Leu[L] 45 7.7%
Lys[K] 54 9.2%
Met[M] 2 0.3%
Phe[F] 24 4.1%
Pro[P] 25 4.3%
Ser[S] 48 8.2%
Thr[T] 32 5.5%
Trp[W] 5 0.9%
Tyr[Y] 16 2.7%
Val[V] 30 5.1%
Total Length 584

Instability index
Instability index (II) 41.59
This classifies the protein as unstable

Atomic composition
Carbon 2925
Hydrogen 4599
Nitrogen 799
Oxygen 932
Sulfur 5
Total number of atoms 9260
Formula = C2925H4599N799O932S5

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 51465 M-1 cm-1
assuming NO Cys residues appear as half cystines 51340 M-1 cm-1
assuming all Cys residues are reduced 51340 M-1 cm-1
assuming all pairs of Cys residues form cystines 51465 M-1 cm-1

Aliphatic index
Aliphatic index 81.15

Coding Region Translation Calculations
Codon Bias -0.002
Codon Adaptation Index 0.148
Frequency of Optimal Codons 0.419
Hydropathicity of Protein -0.680
Aromaticity Score 0.077