CTF19/YPL018W 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] 10 2.7%
Arg[R] 23 6.2%
Asn[N] 30 8.1%
Asp[D] 25 6.8%
Cys[C] 7 1.9%
Gln[Q] 18 4.9%
Glu[E] 21 5.7%
Gly[G] 15 4.1%
His[H] 7 1.9%
Ile[I] 28 7.6%
Leu[L] 48 13.0%
Lys[K] 29 7.9%
Met[M] 9 2.4%
Phe[F] 14 3.8%
Pro[P] 8 2.2%
Ser[S] 24 6.5%
Thr[T] 24 6.5%
Trp[W] 2 0.5%
Tyr[Y] 11 3.0%
Val[V] 16 4.3%
Total Length 369

Instability index
Instability index (II) 34.69
This classifies the protein as stable

Atomic composition
Carbon 1886
Hydrogen 3051
Nitrogen 531
Oxygen 569
Sulfur 16
Total number of atoms 6053
Formula = C1886H3051N531O569S16

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 27765 M-1 cm-1
assuming NO Cys residues appear as half cystines 27390 M-1 cm-1
assuming all Cys residues are reduced 27390 M-1 cm-1
assuming all pairs of Cys residues form cystines 27765 M-1 cm-1

Aliphatic index
Aliphatic index 95.61

Coding Region Translation Calculations
Codon Bias -0.008
Codon Adaptation Index 0.108
Frequency of Optimal Codons 0.408
Hydropathicity of Protein -0.465
Aromaticity Score 0.073