ATG27/YJL178C 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] 13 4.8%
Arg[R] 7 2.6%
Asn[N] 11 4.1%
Asp[D] 19 7.0%
Cys[C] 8 3.0%
Gln[Q] 10 3.7%
Glu[E] 17 6.3%
Gly[G] 21 7.7%
His[H] 3 1.1%
Ile[I] 15 5.5%
Leu[L] 24 8.9%
Lys[K] 25 9.2%
Met[M] 4 1.5%
Phe[F] 15 5.5%
Pro[P] 8 3.0%
Ser[S] 22 8.1%
Thr[T] 24 8.9%
Trp[W] 7 2.6%
Tyr[Y] 4 1.5%
Val[V] 14 5.2%
Total Length 271

Instability index
Instability index (II) 28.92
This classifies the protein as stable

Atomic composition
Carbon 1344
Hydrogen 2101
Nitrogen 351
Oxygen 415
Sulfur 12
Total number of atoms 4223
Formula = C1344H2101N351O415S12

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 44960 M-1 cm-1
assuming NO Cys residues appear as half cystines 44460 M-1 cm-1
assuming all Cys residues are reduced 44460 M-1 cm-1
assuming all pairs of Cys residues form cystines 44960 M-1 cm-1

Aliphatic index
Aliphatic index 75.90

Coding Region Translation Calculations
Codon Bias 0.066
Codon Adaptation Index 0.151
Frequency of Optimal Codons 0.454
Hydropathicity of Protein -0.349
Aromaticity Score 0.096