IZH1/YDR492W 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] 12 3.8%
Arg[R] 9 2.8%
Asn[N] 11 3.5%
Asp[D] 10 3.2%
Cys[C] 11 3.5%
Gln[Q] 8 2.5%
Glu[E] 9 2.8%
Gly[G] 15 4.7%
His[H] 12 3.8%
Ile[I] 28 8.9%
Leu[L] 29 9.2%
Lys[K] 17 5.4%
Met[M] 8 2.5%
Phe[F] 34 10.8%
Pro[P] 10 3.2%
Ser[S] 29 9.2%
Thr[T] 22 7.0%
Trp[W] 6 1.9%
Tyr[Y] 14 4.4%
Val[V] 22 7.0%
Total Length 316

Instability index
Instability index (II) 41.52
This classifies the protein as unstable

Atomic composition
Carbon 1711
Hydrogen 2559
Nitrogen 409
Oxygen 439
Sulfur 19
Total number of atoms 5137
Formula = C1711H2559N409O439S19

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 54485 M-1 cm-1
assuming NO Cys residues appear as half cystines 53860 M-1 cm-1
assuming all Cys residues are reduced 53860 M-1 cm-1
assuming all pairs of Cys residues form cystines 54485 M-1 cm-1

Aliphatic index
Aliphatic index 94.34

Coding Region Translation Calculations
Codon Bias 0.203
Codon Adaptation Index 0.193
Frequency of Optimal Codons 0.543
Hydropathicity of Protein 0.398
Aromaticity Score 0.171