KTR2/YKR061W 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] 17 4.0%
Arg[R] 27 6.4%
Asn[N] 26 6.1%
Asp[D] 28 6.6%
Cys[C] 10 2.4%
Gln[Q] 15 3.5%
Glu[E] 30 7.1%
Gly[G] 19 4.5%
His[H] 7 1.6%
Ile[I] 20 4.7%
Leu[L] 41 9.6%
Lys[K] 23 5.4%
Met[M] 11 2.6%
Phe[F] 36 8.5%
Pro[P] 14 3.3%
Ser[S] 32 7.5%
Thr[T] 17 4.0%
Trp[W] 10 2.4%
Tyr[Y] 26 6.1%
Val[V] 16 3.8%
Total Length 425

Instability index
Instability index (II) 54.26
This classifies the protein as unstable

Atomic composition
Carbon 2305
Hydrogen 3418
Nitrogen 594
Oxygen 658
Sulfur 21
Total number of atoms 6996
Formula = C2305H3418N594O658S21

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 94365 M-1 cm-1
assuming NO Cys residues appear as half cystines 93740 M-1 cm-1
assuming all Cys residues are reduced 93740 M-1 cm-1
assuming all pairs of Cys residues form cystines 94365 M-1 cm-1

Aliphatic index
Aliphatic index 70.89

Coding Region Translation Calculations
Codon Bias 0.022
Codon Adaptation Index 0.138
Frequency of Optimal Codons 0.421
Hydropathicity of Protein -0.471
Aromaticity Score 0.169