NAP1/YKR048C 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] 20 4.8%
Arg[R] 14 3.4%
Asn[N] 19 4.6%
Asp[D] 39 9.4%
Cys[C] 4 1.0%
Gln[Q] 28 6.7%
Glu[E] 60 14.4%
Gly[G] 21 5.0%
His[H] 4 1.0%
Ile[I] 24 5.8%
Leu[L] 39 9.4%
Lys[K] 28 6.7%
Met[M] 4 1.0%
Phe[F] 20 4.8%
Pro[P] 22 5.3%
Ser[S] 23 5.5%
Thr[T] 18 4.3%
Trp[W] 4 1.0%
Tyr[Y] 10 2.4%
Val[V] 16 3.8%
Total Length 417

Instability index
Instability index (II) 54.19
This classifies the protein as unstable

Atomic composition
Carbon 2105
Hydrogen 3248
Nitrogen 546
Oxygen 714
Sulfur 8
Total number of atoms 6621
Formula = C2105H3248N546O714S8

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 37150 M-1 cm-1
assuming NO Cys residues appear as half cystines 36900 M-1 cm-1
assuming all Cys residues are reduced 36900 M-1 cm-1
assuming all pairs of Cys residues form cystines 37150 M-1 cm-1

Aliphatic index
Aliphatic index 74.84

Coding Region Translation Calculations
Codon Bias 0.188
Codon Adaptation Index 0.153
Frequency of Optimal Codons 0.528
Hydropathicity of Protein -0.849
Aromaticity Score 0.082