YRA1/YDR381W 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] 20 8.8%
Arg[R] 29 12.8%
Asn[N] 17 7.5%
Asp[D] 11 4.9%
Cys[C] 0 0.0%
Gln[Q] 9 4.0%
Glu[E] 11 4.9%
Gly[G] 21 9.3%
His[H] 0 0.0%
Ile[I] 8 3.5%
Leu[L] 15 6.6%
Lys[K] 22 9.7%
Met[M] 5 2.2%
Phe[F] 5 2.2%
Pro[P] 15 6.6%
Ser[S] 14 6.2%
Thr[T] 6 2.7%
Trp[W] 0 0.0%
Tyr[Y] 2 0.9%
Val[V] 16 7.1%
Total Length 226

Instability index
Instability index (II) 44.62
This classifies the protein as unstable

Atomic composition
Carbon 1067
Hydrogen 1805
Nitrogen 361
Oxygen 319
Sulfur 5
Total number of atoms 3557
Formula = C1067H1805N361O319S5

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 2980 M-1 cm-1

Aliphatic index
Aliphatic index 69.07

Coding Region Translation Calculations
Codon Bias 0.436
Codon Adaptation Index 0.282
Frequency of Optimal Codons 0.643
Hydropathicity of Protein -0.951
Aromaticity Score 0.031