CYC3/YAL039C 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] 13 4.8%
Arg[R] 13 4.8%
Asn[N] 10 3.7%
Asp[D] 19 7.1%
Cys[C] 4 1.5%
Gln[Q] 12 4.5%
Glu[E] 18 6.7%
Gly[G] 20 7.4%
His[H] 8 3.0%
Ile[I] 7 2.6%
Leu[L] 17 6.3%
Lys[K] 14 5.2%
Met[M] 14 5.2%
Phe[F] 11 4.1%
Pro[P] 25 9.3%
Ser[S] 29 10.8%
Thr[T] 7 2.6%
Trp[W] 7 2.6%
Tyr[Y] 4 1.5%
Val[V] 17 6.3%
Total Length 269

Instability index
Instability index (II) 61.44
This classifies the protein as unstable

Atomic composition
Carbon 1318
Hydrogen 2021
Nitrogen 367
Oxygen 406
Sulfur 18
Total number of atoms 4130
Formula = C1318H2021N367O406S18

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 44710 M-1 cm-1
assuming NO Cys residues appear as half cystines 44460 M-1 cm-1
assuming all Cys residues are reduced 44460 M-1 cm-1
assuming all pairs of Cys residues form cystines 44710 M-1 cm-1

Aliphatic index
Aliphatic index 57.96

Coding Region Translation Calculations
Codon Bias 0.100
Codon Adaptation Index 0.114
Frequency of Optimal Codons 0.448
Hydropathicity of Protein -0.649
Aromaticity Score 0.082