MET17/YLR303W 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] 39 8.8%
Arg[R] 12 2.7%
Asn[N] 22 5.0%
Asp[D] 21 4.7%
Cys[C] 1 0.2%
Gln[Q] 18 4.1%
Glu[E] 27 6.1%
Gly[G] 42 9.5%
His[H] 16 3.6%
Ile[I] 24 5.4%
Leu[L] 35 7.9%
Lys[K] 27 6.1%
Met[M] 2 0.5%
Phe[F] 26 5.9%
Pro[P] 22 5.0%
Ser[S] 29 6.5%
Thr[T] 24 5.4%
Trp[W] 4 0.9%
Tyr[Y] 20 4.5%
Val[V] 33 7.4%
Total Length 444

Instability index
Instability index (II) 23.11
This classifies the protein as stable

Atomic composition
Carbon 2211
Hydrogen 3363
Nitrogen 583
Oxygen 654
Sulfur 3
Total number of atoms 6814
Formula = C2211H3363N583O654S3

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 51800 M-1 cm-1
assuming NO Cys residues appear as half cystines 51800 M-1 cm-1
assuming all Cys residues are reduced 51800 M-1 cm-1
assuming all pairs of Cys residues form cystines 51800 M-1 cm-1

Aliphatic index
Aliphatic index 82.16

Coding Region Translation Calculations
Codon Bias 0.533
Codon Adaptation Index 0.460
Frequency of Optimal Codons 0.721
Hydropathicity of Protein -0.250
Aromaticity Score 0.113