OPI9/YLR338W 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] 32 11.2%
Arg[R] 8 2.8%
Asn[N] 6 2.1%
Asp[D] 13 4.6%
Cys[C] 9 3.2%
Gln[Q] 3 1.1%
Glu[E] 14 4.9%
Gly[G] 63 22.1%
His[H] 0 0.0%
Ile[I] 20 7.0%
Leu[L] 32 11.2%
Lys[K] 3 1.1%
Met[M] 4 1.4%
Phe[F] 14 4.9%
Pro[P] 20 7.0%
Ser[S] 13 4.6%
Thr[T] 15 5.3%
Trp[W] 2 0.7%
Tyr[Y] 3 1.1%
Val[V] 11 3.9%
Total Length 285

Instability index
Instability index (II) 31.89
This classifies the protein as stable

Atomic composition
Carbon 1237
Hydrogen 1941
Nitrogen 323
Oxygen 380
Sulfur 13
Total number of atoms 3894
Formula = C1237H1941N323O380S13

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 15970 M-1 cm-1
assuming NO Cys residues appear as half cystines 15470 M-1 cm-1
assuming all Cys residues are reduced 15470 M-1 cm-1
assuming all pairs of Cys residues form cystines 15970 M-1 cm-1

Aliphatic index
Aliphatic index 93.58

Coding Region Translation Calculations
Codon Bias -0.059
Codon Adaptation Index 0.057
Frequency of Optimal Codons 0.315
Hydropathicity of Protein 0.446
Aromaticity Score 0.067