TEF2/YBR118W 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] 37 8.1%
Arg[R] 18 3.9%
Asn[N] 16 3.5%
Asp[D] 24 5.2%
Cys[C] 7 1.5%
Gln[Q] 12 2.6%
Glu[E] 31 6.8%
Gly[G] 42 9.2%
His[H] 11 2.4%
Ile[I] 30 6.6%
Leu[L] 24 5.2%
Lys[K] 49 10.7%
Met[M] 8 1.7%
Phe[F] 17 3.7%
Pro[P] 23 5.0%
Ser[S] 21 4.6%
Thr[T] 28 6.1%
Trp[W] 6 1.3%
Tyr[Y] 8 1.7%
Val[V] 46 10.0%
Total Length 458

Instability index
Instability index (II) 30.42
This classifies the protein as stable

Atomic composition
Carbon 2234
Hydrogen 3585
Nitrogen 617
Oxygen 654
Sulfur 15
Total number of atoms 7105
Formula = C2234H3585N617O654S15

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 45295 M-1 cm-1
assuming NO Cys residues appear as half cystines 44920 M-1 cm-1
assuming all Cys residues are reduced 44920 M-1 cm-1
assuming all pairs of Cys residues form cystines 45295 M-1 cm-1

Aliphatic index
Aliphatic index 83.19

Coding Region Translation Calculations
Codon Bias 0.881
Codon Adaptation Index 0.876
Frequency of Optimal Codons 0.930
Hydropathicity of Protein -0.300
Aromaticity Score 0.068