OCA6/YDR067C 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] 7 3.1%
Arg[R] 13 5.8%
Asn[N] 13 5.8%
Asp[D] 11 4.9%
Cys[C] 6 2.7%
Gln[Q] 3 1.3%
Glu[E] 15 6.7%
Gly[G] 3 1.3%
His[H] 5 2.2%
Ile[I] 18 8.0%
Leu[L] 20 8.9%
Lys[K] 21 9.4%
Met[M] 5 2.2%
Phe[F] 9 4.0%
Pro[P] 12 5.4%
Ser[S] 19 8.5%
Thr[T] 14 6.2%
Trp[W] 2 0.9%
Tyr[Y] 9 4.0%
Val[V] 19 8.5%
Total Length 224

Instability index
Instability index (II) 46.48
This classifies the protein as unstable

Atomic composition
Carbon 1170
Hydrogen 1874
Nitrogen 312
Oxygen 335
Sulfur 11
Total number of atoms 3702
Formula = C1170H1874N312O335S11

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 24785 M-1 cm-1
assuming NO Cys residues appear as half cystines 24410 M-1 cm-1
assuming all Cys residues are reduced 24410 M-1 cm-1
assuming all pairs of Cys residues form cystines 24785 M-1 cm-1

Aliphatic index
Aliphatic index 93.88

Coding Region Translation Calculations
Codon Bias 0.017
Codon Adaptation Index 0.129
Frequency of Optimal Codons 0.433
Hydropathicity of Protein -0.282
Aromaticity Score 0.089