PTP1/YDL230W 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] 15 4.5%
Arg[R] 22 6.6%
Asn[N] 21 6.3%
Asp[D] 22 6.6%
Cys[C] 5 1.5%
Gln[Q] 15 4.5%
Glu[E] 16 4.8%
Gly[G] 17 5.1%
His[H] 12 3.6%
Ile[I] 20 6.0%
Leu[L] 23 6.9%
Lys[K] 18 5.4%
Met[M] 10 3.0%
Phe[F] 11 3.3%
Pro[P] 17 5.1%
Ser[S] 18 5.4%
Thr[T] 22 6.6%
Trp[W] 7 2.1%
Tyr[Y] 17 5.1%
Val[V] 27 8.1%
Total Length 335

Instability index
Instability index (II) 39.25
This classifies the protein as stable

Atomic composition
Carbon 1732
Hydrogen 2676
Nitrogen 486
Oxygen 505
Sulfur 15
Total number of atoms 5414
Formula = C1732H2676N486O505S15

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 64080 M-1 cm-1
assuming NO Cys residues appear as half cystines 63830 M-1 cm-1
assuming all Cys residues are reduced 63830 M-1 cm-1
assuming all pairs of Cys residues form cystines 64080 M-1 cm-1

Aliphatic index
Aliphatic index 77.91

Coding Region Translation Calculations
Codon Bias 0.016
Codon Adaptation Index 0.115
Frequency of Optimal Codons 0.425
Hydropathicity of Protein -0.533
Aromaticity Score 0.104