PET494/YNR045W 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] 16 3.3%
Arg[R] 32 6.5%
Asn[N] 36 7.4%
Asp[D] 28 5.7%
Cys[C] 5 1.0%
Gln[Q] 22 4.5%
Glu[E] 30 6.1%
Gly[G] 16 3.3%
His[H] 9 1.8%
Ile[I] 30 6.1%
Leu[L] 51 10.4%
Lys[K] 37 7.6%
Met[M] 11 2.2%
Phe[F] 23 4.7%
Pro[P] 19 3.9%
Ser[S] 33 6.7%
Thr[T] 34 7.0%
Trp[W] 8 1.6%
Tyr[Y] 22 4.5%
Val[V] 27 5.5%
Total Length 489

Instability index
Instability index (II) 51.40
This classifies the protein as unstable

Atomic composition
Carbon 2578
Hydrogen 4042
Nitrogen 706
Oxygen 753
Sulfur 16
Total number of atoms 8095
Formula = C2578H4042N706O753S16

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 77030 M-1 cm-1
assuming NO Cys residues appear as half cystines 76780 M-1 cm-1
assuming all Cys residues are reduced 76780 M-1 cm-1
assuming all pairs of Cys residues form cystines 77030 M-1 cm-1

Aliphatic index
Aliphatic index 83.89

Coding Region Translation Calculations
Codon Bias 0.032
Codon Adaptation Index 0.104
Frequency of Optimal Codons 0.432
Hydropathicity of Protein -0.567
Aromaticity Score 0.108