STE12/YHR084W 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] 33 4.8%
Arg[R] 27 3.9%
Asn[N] 54 7.8%
Asp[D] 42 6.1%
Cys[C] 7 1.0%
Gln[Q] 38 5.5%
Glu[E] 41 6.0%
Gly[G] 28 4.1%
His[H] 9 1.3%
Ile[I] 19 2.8%
Leu[L] 48 7.0%
Lys[K] 44 6.4%
Met[M] 19 2.8%
Phe[F] 33 4.8%
Pro[P] 65 9.4%
Ser[S] 68 9.9%
Thr[T] 42 6.1%
Trp[W] 5 0.7%
Tyr[Y] 32 4.7%
Val[V] 34 4.9%
Total Length 688

Instability index
Instability index (II) 58.69
This classifies the protein as unstable

Atomic composition
Carbon 3439
Hydrogen 5264
Nitrogen 928
Oxygen 1089
Sulfur 26
Total number of atoms 10746
Formula = C3439H5264N928O1089S26

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 75555 M-1 cm-1
assuming NO Cys residues appear as half cystines 75180 M-1 cm-1
assuming all Cys residues are reduced 75180 M-1 cm-1
assuming all pairs of Cys residues form cystines 75555 M-1 cm-1

Aliphatic index
Aliphatic index 57.11

Coding Region Translation Calculations
Codon Bias 0.065
Codon Adaptation Index 0.142
Frequency of Optimal Codons 0.441
Hydropathicity of Protein -0.819
Aromaticity Score 0.102