NAT3/YPR131C 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] 9 4.6%
Arg[R] 12 6.2%
Asn[N] 12 6.2%
Asp[D] 15 7.7%
Cys[C] 3 1.5%
Gln[Q] 2 1.0%
Glu[E] 11 5.6%
Gly[G] 6 3.1%
His[H] 6 3.1%
Ile[I] 9 4.6%
Leu[L] 13 6.7%
Lys[K] 14 7.2%
Met[M] 9 4.6%
Phe[F] 13 6.7%
Pro[P] 10 5.1%
Ser[S] 9 4.6%
Thr[T] 16 8.2%
Trp[W] 2 1.0%
Tyr[Y] 10 5.1%
Val[V] 14 7.2%
Total Length 195

Instability index
Instability index (II) 36.97
This classifies the protein as stable

Atomic composition
Carbon 1030
Hydrogen 1577
Nitrogen 273
Oxygen 297
Sulfur 12
Total number of atoms 3189
Formula = C1030H1577N273O297S12

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 26025 M-1 cm-1
assuming NO Cys residues appear as half cystines 25900 M-1 cm-1
assuming all Cys residues are reduced 25900 M-1 cm-1
assuming all pairs of Cys residues form cystines 26025 M-1 cm-1

Aliphatic index
Aliphatic index 69.44

Coding Region Translation Calculations
Codon Bias -0.004
Codon Adaptation Index 0.140
Frequency of Optimal Codons 0.418
Hydropathicity of Protein -0.479
Aromaticity Score 0.128