KTR3/YBR205W 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 3.0%
Arg[R] 20 5.0%
Asn[N] 15 3.7%
Asp[D] 30 7.4%
Cys[C] 7 1.7%
Gln[Q] 8 2.0%
Glu[E] 18 4.5%
Gly[G] 22 5.4%
His[H] 14 3.5%
Ile[I] 27 6.7%
Leu[L] 29 7.2%
Lys[K] 36 8.9%
Met[M] 9 2.2%
Phe[F] 34 8.4%
Pro[P] 20 5.0%
Ser[S] 35 8.7%
Thr[T] 18 4.5%
Trp[W] 11 2.7%
Tyr[Y] 19 4.7%
Val[V] 20 5.0%
Total Length 404

Instability index
Instability index (II) 38.72
This classifies the protein as stable

Atomic composition
Carbon 2187
Hydrogen 3268
Nitrogen 562
Oxygen 596
Sulfur 16
Total number of atoms 6629
Formula = C2187H3268N562O596S16

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 89185 M-1 cm-1
assuming NO Cys residues appear as half cystines 88810 M-1 cm-1
assuming all Cys residues are reduced 88810 M-1 cm-1
assuming all pairs of Cys residues form cystines 89185 M-1 cm-1

Aliphatic index
Aliphatic index 71.39

Coding Region Translation Calculations
Codon Bias 0.162
Codon Adaptation Index 0.186
Frequency of Optimal Codons 0.513
Hydropathicity of Protein -0.427
Aromaticity Score 0.158