ATG17/YLR423C 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] 12 2.9%
Arg[R] 14 3.4%
Asn[N] 33 7.9%
Asp[D] 36 8.6%
Cys[C] 4 1.0%
Gln[Q] 26 6.2%
Glu[E] 36 8.6%
Gly[G] 12 2.9%
His[H] 3 0.7%
Ile[I] 32 7.7%
Leu[L] 51 12.2%
Lys[K] 43 10.3%
Met[M] 6 1.4%
Phe[F] 17 4.1%
Pro[P] 5 1.2%
Ser[S] 22 5.3%
Thr[T] 24 5.8%
Trp[W] 4 1.0%
Tyr[Y] 12 2.9%
Val[V] 25 6.0%
Total Length 417

Instability index
Instability index (II) 27.17
This classifies the protein as stable

Atomic composition
Carbon 2163
Hydrogen 3467
Nitrogen 571
Oxygen 679
Sulfur 10
Total number of atoms 6890
Formula = C2163H3467N571O679S10

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 40130 M-1 cm-1
assuming NO Cys residues appear as half cystines 39880 M-1 cm-1
assuming all Cys residues are reduced 39880 M-1 cm-1
assuming all pairs of Cys residues form cystines 40130 M-1 cm-1

Aliphatic index
Aliphatic index 97.89

Coding Region Translation Calculations
Codon Bias 0.029
Codon Adaptation Index 0.153
Frequency of Optimal Codons 0.450
Hydropathicity of Protein -0.556
Aromaticity Score 0.079