MET14/YKL001C 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 7.9%
Arg[R] 15 7.4%
Asn[N] 7 3.5%
Asp[D] 12 5.9%
Cys[C] 4 2.0%
Gln[Q] 5 2.5%
Glu[E] 18 8.9%
Gly[G] 10 5.0%
His[H] 4 2.0%
Ile[I] 18 8.9%
Leu[L] 21 10.4%
Lys[K] 17 8.4%
Met[M] 1 0.5%
Phe[F] 7 3.5%
Pro[P] 7 3.5%
Ser[S] 13 6.4%
Thr[T] 11 5.4%
Trp[W] 2 1.0%
Tyr[Y] 7 3.5%
Val[V] 7 3.5%
Total Length 202

Instability index
Instability index (II) 45.51
This classifies the protein as unstable

Atomic composition
Carbon 1027
Hydrogen 1650
Nitrogen 286
Oxygen 306
Sulfur 5
Total number of atoms 3274
Formula = C1027H1650N286O306S5

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 21680 M-1 cm-1
assuming NO Cys residues appear as half cystines 21430 M-1 cm-1
assuming all Cys residues are reduced 21430 M-1 cm-1
assuming all pairs of Cys residues form cystines 21680 M-1 cm-1

Aliphatic index
Aliphatic index 93.27

Coding Region Translation Calculations
Codon Bias 0.336
Codon Adaptation Index 0.267
Frequency of Optimal Codons 0.603
Hydropathicity of Protein -0.432
Aromaticity Score 0.079