CTF4/YPR135W 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] 56 6.0%
Arg[R] 31 3.3%
Asn[N] 58 6.3%
Asp[D] 67 7.2%
Cys[C] 12 1.3%
Gln[Q] 26 2.8%
Glu[E] 68 7.3%
Gly[G] 46 5.0%
His[H] 24 2.6%
Ile[I] 57 6.1%
Leu[L] 90 9.7%
Lys[K] 64 6.9%
Met[M] 19 2.0%
Phe[F] 42 4.5%
Pro[P] 37 4.0%
Ser[S] 85 9.2%
Thr[T] 52 5.6%
Trp[W] 11 1.2%
Tyr[Y] 32 3.5%
Val[V] 50 5.4%
Total Length 927

Instability index
Instability index (II) 39.31
This classifies the protein as stable

Atomic composition
Carbon 4642
Hydrogen 7217
Nitrogen 1227
Oxygen 1451
Sulfur 31
Total number of atoms 14568
Formula = C4642H7217N1227O1451S31

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 108930 M-1 cm-1
assuming NO Cys residues appear as half cystines 108180 M-1 cm-1
assuming all Cys residues are reduced 108180 M-1 cm-1
assuming all pairs of Cys residues form cystines 108930 M-1 cm-1

Aliphatic index
Aliphatic index 83.53

Coding Region Translation Calculations
Codon Bias 0.067
Codon Adaptation Index 0.144
Frequency of Optimal Codons 0.450
Hydropathicity of Protein -0.402
Aromaticity Score 0.092