MTC4/YBR255W 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] 22 3.2%
Arg[R] 47 6.8%
Asn[N] 50 7.2%
Asp[D] 30 4.3%
Cys[C] 1 0.1%
Gln[Q] 27 3.9%
Glu[E] 45 6.5%
Gly[G] 37 5.3%
His[H] 26 3.7%
Ile[I] 48 6.9%
Leu[L] 57 8.2%
Lys[K] 53 7.6%
Met[M] 15 2.2%
Phe[F] 13 1.9%
Pro[P] 26 3.7%
Ser[S] 76 11.0%
Thr[T] 59 8.5%
Trp[W] 10 1.4%
Tyr[Y] 19 2.7%
Val[V] 33 4.8%
Total Length 694

Instability index
Instability index (II) 47.40
This classifies the protein as unstable

Atomic composition
Carbon 3441
Hydrogen 5541
Nitrogen 1027
Oxygen 1076
Sulfur 16
Total number of atoms 11101
Formula = C3441H5541N1027O1076S16

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 83310 M-1 cm-1
assuming NO Cys residues appear as half cystines 83310 M-1 cm-1
assuming all Cys residues are reduced 83310 M-1 cm-1
assuming all pairs of Cys residues form cystines 83310 M-1 cm-1

Aliphatic index
Aliphatic index 75.97

Coding Region Translation Calculations
Codon Bias -0.010
Codon Adaptation Index 0.111
Frequency of Optimal Codons 0.404
Hydropathicity of Protein -0.789
Aromaticity Score 0.061