YPL260W 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] 21 3.8%
Arg[R] 25 4.5%
Asn[N] 36 6.5%
Asp[D] 42 7.6%
Cys[C] 6 1.1%
Gln[Q] 28 5.1%
Glu[E] 55 10.0%
Gly[G] 21 3.8%
His[H] 16 2.9%
Ile[I] 28 5.1%
Leu[L] 78 14.2%
Lys[K] 41 7.4%
Met[M] 6 1.1%
Phe[F] 10 1.8%
Pro[P] 15 2.7%
Ser[S] 55 10.0%
Thr[T] 26 4.7%
Trp[W] 1 0.2%
Tyr[Y] 17 3.1%
Val[V] 24 4.4%
Total Length 551

Instability index
Instability index (II) 51.13
This classifies the protein as unstable

Atomic composition
Carbon 2726
Hydrogen 4390
Nitrogen 764
Oxygen 908
Sulfur 12
Total number of atoms 8800
Formula = C2726H4390N764O908S12

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 31205 M-1 cm-1
assuming NO Cys residues appear as half cystines 30830 M-1 cm-1
assuming all Cys residues are reduced 30830 M-1 cm-1
assuming all pairs of Cys residues form cystines 31205 M-1 cm-1

Aliphatic index
Aliphatic index 91.47

Coding Region Translation Calculations
Codon Bias 0.148
Codon Adaptation Index 0.189
Frequency of Optimal Codons 0.491
Hydropathicity of Protein -0.707
Aromaticity Score 0.051