MET22/YOL064C 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] 26 7.3%
Arg[R] 14 3.9%
Asn[N] 16 4.5%
Asp[D] 28 7.8%
Cys[C] 6 1.7%
Gln[Q] 12 3.4%
Glu[E] 19 5.3%
Gly[G] 29 8.1%
His[H] 11 3.1%
Ile[I] 25 7.0%
Leu[L] 35 9.8%
Lys[K] 25 7.0%
Met[M] 3 0.8%
Phe[F] 13 3.6%
Pro[P] 9 2.5%
Ser[S] 30 8.4%
Thr[T] 18 5.0%
Trp[W] 3 0.8%
Tyr[Y] 10 2.8%
Val[V] 25 7.0%
Total Length 357

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

Atomic composition
Carbon 1732
Hydrogen 2747
Nitrogen 477
Oxygen 538
Sulfur 9
Total number of atoms 5503
Formula = C1732H2747N477O538S9

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 31775 M-1 cm-1
assuming NO Cys residues appear as half cystines 31400 M-1 cm-1
assuming all Cys residues are reduced 31400 M-1 cm-1
assuming all pairs of Cys residues form cystines 31775 M-1 cm-1

Aliphatic index
Aliphatic index 93.14

Coding Region Translation Calculations
Codon Bias 0.185
Codon Adaptation Index 0.200
Frequency of Optimal Codons 0.516
Hydropathicity of Protein -0.230
Aromaticity Score 0.073