CTA1/YDR256C 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] 35 6.8%
Arg[R] 26 5.0%
Asn[N] 37 7.2%
Asp[D] 31 6.0%
Cys[C] 5 1.0%
Gln[Q] 33 6.4%
Glu[E] 23 4.5%
Gly[G] 34 6.6%
His[H] 17 3.3%
Ile[I] 27 5.2%
Leu[L] 27 5.2%
Lys[K] 27 5.2%
Met[M] 8 1.6%
Phe[F] 30 5.8%
Pro[P] 33 6.4%
Ser[S] 29 5.6%
Thr[T] 30 5.8%
Trp[W] 8 1.6%
Tyr[Y] 23 4.5%
Val[V] 32 6.2%
Total Length 515

Instability index
Instability index (II) 30.26
This classifies the protein as stable

Atomic composition
Carbon 2621
Hydrogen 3958
Nitrogen 732
Oxygen 776
Sulfur 13
Total number of atoms 8100
Formula = C2621H3958N732O776S13

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 78520 M-1 cm-1
assuming NO Cys residues appear as half cystines 78270 M-1 cm-1
assuming all Cys residues are reduced 78270 M-1 cm-1
assuming all pairs of Cys residues form cystines 78520 M-1 cm-1

Aliphatic index
Aliphatic index 65.71

Coding Region Translation Calculations
Codon Bias 0.065
Codon Adaptation Index 0.159
Frequency of Optimal Codons 0.451
Hydropathicity of Protein -0.631
Aromaticity Score 0.118