TSA2/YDR453C 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 8.7%
Arg[R] 6 3.1%
Asn[N] 10 5.1%
Asp[D] 12 6.1%
Cys[C] 2 1.0%
Gln[Q] 5 2.6%
Glu[E] 12 6.1%
Gly[G] 14 7.1%
His[H] 2 1.0%
Ile[I] 12 6.1%
Leu[L] 18 9.2%
Lys[K] 18 9.2%
Met[M] 1 0.5%
Phe[F] 11 5.6%
Pro[P] 11 5.6%
Ser[S] 10 5.1%
Thr[T] 9 4.6%
Trp[W] 3 1.5%
Tyr[Y] 5 2.6%
Val[V] 18 9.2%
Total Length 196

Instability index
Instability index (II) 21.54
This classifies the protein as stable

Atomic composition
Carbon 987
Hydrogen 1550
Nitrogen 254
Oxygen 284
Sulfur 3
Total number of atoms 3078
Formula = C987H1550N254O284S3

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 24075 M-1 cm-1
assuming NO Cys residues appear as half cystines 23950 M-1 cm-1
assuming all Cys residues are reduced 23950 M-1 cm-1
assuming all pairs of Cys residues form cystines 24075 M-1 cm-1

Aliphatic index
Aliphatic index 95.00

Coding Region Translation Calculations
Codon Bias 0.282
Codon Adaptation Index 0.273
Frequency of Optimal Codons 0.573
Hydropathicity of Protein -0.105
Aromaticity Score 0.097