MET32/YDR253C 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] 12 6.3%
Arg[R] 16 8.4%
Asn[N] 18 9.4%
Asp[D] 11 5.8%
Cys[C] 5 2.6%
Gln[Q] 9 4.7%
Glu[E] 11 5.8%
Gly[G] 11 5.8%
His[H] 5 2.6%
Ile[I] 13 6.8%
Leu[L] 15 7.9%
Lys[K] 22 11.5%
Met[M] 1 0.5%
Phe[F] 5 2.6%
Pro[P] 9 4.7%
Ser[S] 13 6.8%
Thr[T] 7 3.7%
Trp[W] 0 0.0%
Tyr[Y] 1 0.5%
Val[V] 7 3.7%
Total Length 191

Instability index
Instability index (II) 60.16
This classifies the protein as unstable

Atomic composition
Carbon 921
Hydrogen 1534
Nitrogen 298
Oxygen 284
Sulfur 6
Total number of atoms 3043
Formula = C921H1534N298O284S6

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 1740 M-1 cm-1
assuming NO Cys residues appear as half cystines 1490 M-1 cm-1
assuming all Cys residues are reduced 1490 M-1 cm-1
assuming all pairs of Cys residues form cystines 1740 M-1 cm-1

Aliphatic index
Aliphatic index 74.08

Coding Region Translation Calculations
Codon Bias -0.024
Codon Adaptation Index 0.122
Frequency of Optimal Codons 0.389
Hydropathicity of Protein -0.973
Aromaticity Score 0.031