SEY1/YOR165W 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 5.0%
Arg[R] 35 4.5%
Asn[N] 37 4.8%
Asp[D] 57 7.3%
Cys[C] 5 0.6%
Gln[Q] 30 3.9%
Glu[E] 74 9.5%
Gly[G] 34 4.4%
His[H] 19 2.4%
Ile[I] 53 6.8%
Leu[L] 78 10.1%
Lys[K] 63 8.1%
Met[M] 12 1.5%
Phe[F] 40 5.2%
Pro[P] 17 2.2%
Ser[S] 52 6.7%
Thr[T] 42 5.4%
Trp[W] 12 1.5%
Tyr[Y] 20 2.6%
Val[V] 57 7.3%
Total Length 776

Instability index
Instability index (II) 42.30
This classifies the protein as unstable

Atomic composition
Carbon 4010
Hydrogen 6293
Nitrogen 1061
Oxygen 1220
Sulfur 17
Total number of atoms 12601
Formula = C4010H6293N1061O1220S17

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 96050 M-1 cm-1
assuming NO Cys residues appear as half cystines 95800 M-1 cm-1
assuming all Cys residues are reduced 95800 M-1 cm-1
assuming all pairs of Cys residues form cystines 96050 M-1 cm-1

Aliphatic index
Aliphatic index 92.16

Coding Region Translation Calculations
Codon Bias 0.092
Codon Adaptation Index 0.182
Frequency of Optimal Codons 0.473
Hydropathicity of Protein -0.404
Aromaticity Score 0.093