AEP3/YPL005W 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] 30 5.0%
Arg[R] 42 6.9%
Asn[N] 40 6.6%
Asp[D] 26 4.3%
Cys[C] 10 1.7%
Gln[Q] 20 3.3%
Glu[E] 38 6.3%
Gly[G] 24 4.0%
His[H] 12 2.0%
Ile[I] 33 5.4%
Leu[L] 62 10.2%
Lys[K] 61 10.1%
Met[M] 11 1.8%
Phe[F] 38 6.3%
Pro[P] 20 3.3%
Ser[S] 47 7.8%
Thr[T] 38 6.3%
Trp[W] 4 0.7%
Tyr[Y] 21 3.5%
Val[V] 29 4.8%
Total Length 606

Instability index
Instability index (II) 32.63
This classifies the protein as stable

Atomic composition
Carbon 3150
Hydrogen 5007
Nitrogen 881
Oxygen 901
Sulfur 21
Total number of atoms 9960
Formula = C3150H5007N881O901S21

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 53915 M-1 cm-1
assuming NO Cys residues appear as half cystines 53290 M-1 cm-1
assuming all Cys residues are reduced 53290 M-1 cm-1
assuming all pairs of Cys residues form cystines 53915 M-1 cm-1

Aliphatic index
Aliphatic index 79.97

Coding Region Translation Calculations
Codon Bias -0.043
Codon Adaptation Index 0.105
Frequency of Optimal Codons 0.381
Hydropathicity of Protein -0.534
Aromaticity Score 0.104