CKA2/YOR061W 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] 13 3.8%
Arg[R] 15 4.4%
Asn[N] 17 5.0%
Asp[D] 21 6.2%
Cys[C] 5 1.5%
Gln[Q] 11 3.2%
Glu[E] 20 5.9%
Gly[G] 18 5.3%
His[H] 8 2.4%
Ile[I] 23 6.8%
Leu[L] 34 10.0%
Lys[K] 31 9.1%
Met[M] 8 2.4%
Phe[F] 14 4.1%
Pro[P] 17 5.0%
Ser[S] 16 4.7%
Thr[T] 16 4.7%
Trp[W] 5 1.5%
Tyr[Y] 21 6.2%
Val[V] 26 7.7%
Total Length 339

Instability index
Instability index (II) 28.48
This classifies the protein as stable

Atomic composition
Carbon 1800
Hydrogen 2798
Nitrogen 464
Oxygen 503
Sulfur 13
Total number of atoms 5578
Formula = C1800H2798N464O503S13

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 59040 M-1 cm-1
assuming NO Cys residues appear as half cystines 58790 M-1 cm-1
assuming all Cys residues are reduced 58790 M-1 cm-1
assuming all pairs of Cys residues form cystines 59040 M-1 cm-1

Aliphatic index
Aliphatic index 91.65

Coding Region Translation Calculations
Codon Bias 0.127
Codon Adaptation Index 0.164
Frequency of Optimal Codons 0.491
Hydropathicity of Protein -0.335
Aromaticity Score 0.118