COF1/YLL050C 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] 11 7.7%
Arg[R] 7 4.9%
Asn[N] 6 4.2%
Asp[D] 12 8.4%
Cys[C] 1 0.7%
Gln[Q] 1 0.7%
Glu[E] 10 7.0%
Gly[G] 9 6.3%
His[H] 1 0.7%
Ile[I] 5 3.5%
Leu[L] 11 7.7%
Lys[K] 11 7.7%
Met[M] 2 1.4%
Phe[F] 8 5.6%
Pro[P] 4 2.8%
Ser[S] 16 11.2%
Thr[T] 8 5.6%
Trp[W] 1 0.7%
Tyr[Y] 7 4.9%
Val[V] 12 8.4%
Total Length 143

Instability index
Instability index (II) 50.14
This classifies the protein as unstable

Atomic composition
Carbon 707
Hydrogen 1097
Nitrogen 185
Oxygen 226
Sulfur 3
Total number of atoms 2218
Formula = C707H1097N185O226S3

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 15930 M-1 cm-1
assuming NO Cys residues appear as half cystines 15930 M-1 cm-1
assuming all Cys residues are reduced 15930 M-1 cm-1
assuming all pairs of Cys residues form cystines 15930 M-1 cm-1

Aliphatic index
Aliphatic index 75.66

Coding Region Translation Calculations
Codon Bias 0.559
Codon Adaptation Index 0.543
Frequency of Optimal Codons 0.736
Hydropathicity of Protein -0.380
Aromaticity Score 0.112