TDA1/YMR291W 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] 28 4.8%
Arg[R] 22 3.8%
Asn[N] 36 6.1%
Asp[D] 43 7.3%
Cys[C] 14 2.4%
Gln[Q] 23 3.9%
Glu[E] 30 5.1%
Gly[G] 24 4.1%
His[H] 17 2.9%
Ile[I] 24 4.1%
Leu[L] 54 9.2%
Lys[K] 47 8.0%
Met[M] 15 2.6%
Phe[F] 27 4.6%
Pro[P] 22 3.8%
Ser[S] 56 9.6%
Thr[T] 49 8.4%
Trp[W] 3 0.5%
Tyr[Y] 20 3.4%
Val[V] 32 5.5%
Total Length 586

Instability index
Instability index (II) 33.01
This classifies the protein as stable

Atomic composition
Carbon 2904
Hydrogen 4567
Nitrogen 795
Oxygen 917
Sulfur 29
Total number of atoms 9212
Formula = C2904H4567N795O917S29

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 47175 M-1 cm-1
assuming NO Cys residues appear as half cystines 46300 M-1 cm-1
assuming all Cys residues are reduced 46300 M-1 cm-1
assuming all pairs of Cys residues form cystines 47175 M-1 cm-1

Aliphatic index
Aliphatic index 72.53

Coding Region Translation Calculations
Codon Bias 0.169
Codon Adaptation Index 0.183
Frequency of Optimal Codons 0.512
Hydropathicity of Protein -0.536
Aromaticity Score 0.085