YPT31/YER031C 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] 19 8.5%
Arg[R] 8 3.6%
Asn[N] 21 9.4%
Asp[D] 14 6.3%
Cys[C] 3 1.3%
Gln[Q] 6 2.7%
Glu[E] 16 7.2%
Gly[G] 16 7.2%
His[H] 3 1.3%
Ile[I] 13 5.8%
Leu[L] 18 8.1%
Lys[K] 14 6.3%
Met[M] 3 1.3%
Phe[F] 7 3.1%
Pro[P] 5 2.2%
Ser[S] 22 9.9%
Thr[T] 14 6.3%
Trp[W] 2 0.9%
Tyr[Y] 9 4.0%
Val[V] 10 4.5%
Total Length 223

Instability index
Instability index (II) 25.55
This classifies the protein as stable

Atomic composition
Carbon 1062
Hydrogen 1666
Nitrogen 296
Oxygen 356
Sulfur 6
Total number of atoms 3386
Formula = C1062H1666N296O356S6

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 24535 M-1 cm-1
assuming NO Cys residues appear as half cystines 24410 M-1 cm-1
assuming all Cys residues are reduced 24410 M-1 cm-1
assuming all pairs of Cys residues form cystines 24535 M-1 cm-1

Aliphatic index
Aliphatic index 75.74

Coding Region Translation Calculations
Codon Bias 0.094
Codon Adaptation Index 0.156
Frequency of Optimal Codons 0.463
Hydropathicity of Protein -0.534
Aromaticity Score 0.081