SWI4/YER111C 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] 41 3.8%
Arg[R] 30 2.7%
Asn[N] 148 13.5%
Asp[D] 54 4.9%
Cys[C] 7 0.6%
Gln[Q] 73 6.7%
Glu[E] 56 5.1%
Gly[G] 24 2.2%
His[H] 23 2.1%
Ile[I] 88 8.1%
Leu[L] 80 7.3%
Lys[K] 92 8.4%
Met[M] 26 2.4%
Phe[F] 33 3.0%
Pro[P] 54 4.9%
Ser[S] 125 11.4%
Thr[T] 69 6.3%
Trp[W] 4 0.4%
Tyr[Y] 28 2.6%
Val[V] 38 3.5%
Total Length 1093

Instability index
Instability index (II) 53.38
This classifies the protein as unstable

Atomic composition
Carbon 5357
Hydrogen 8572
Nitrogen 1546
Oxygen 1757
Sulfur 33
Total number of atoms 17265
Formula = C5357H8572N1546O1757S33

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 64095 M-1 cm-1
assuming NO Cys residues appear as half cystines 63720 M-1 cm-1
assuming all Cys residues are reduced 63720 M-1 cm-1
assuming all pairs of Cys residues form cystines 64095 M-1 cm-1

Aliphatic index
Aliphatic index 73.78

Coding Region Translation Calculations
Codon Bias 0.053
Codon Adaptation Index 0.145
Frequency of Optimal Codons 0.462
Hydropathicity of Protein -0.839
Aromaticity Score 0.059