YNL018C 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] 26 4.2%
Arg[R] 28 4.6%
Asn[N] 46 7.5%
Asp[D] 27 4.4%
Cys[C] 14 2.3%
Gln[Q] 27 4.4%
Glu[E] 39 6.4%
Gly[G] 12 2.0%
His[H] 18 2.9%
Ile[I] 26 4.2%
Leu[L] 44 7.2%
Lys[K] 34 5.6%
Met[M] 12 2.0%
Phe[F] 26 4.2%
Pro[P] 43 7.0%
Ser[S] 86 14.1%
Thr[T] 41 6.7%
Trp[W] 9 1.5%
Tyr[Y] 21 3.4%
Val[V] 33 5.4%
Total Length 612

Instability index
Instability index (II) 68.71
This classifies the protein as unstable

Atomic composition
Carbon 3050
Hydrogen 4714
Nitrogen 848
Oxygen 966
Sulfur 26
Total number of atoms 9604
Formula = C3050H4714N848O966S26

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 81665 M-1 cm-1
assuming NO Cys residues appear as half cystines 80790 M-1 cm-1
assuming all Cys residues are reduced 80790 M-1 cm-1
assuming all pairs of Cys residues form cystines 81665 M-1 cm-1

Aliphatic index
Aliphatic index 64.49

Coding Region Translation Calculations
Codon Bias 0.125
Codon Adaptation Index 0.139
Frequency of Optimal Codons 0.482
Hydropathicity of Protein -0.668
Aromaticity Score 0.092