CHD1/YER164W 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] 79 5.4%
Arg[R] 87 5.9%
Asn[N] 87 5.9%
Asp[D] 111 7.6%
Cys[C] 6 0.4%
Gln[Q] 52 3.5%
Glu[E] 131 8.9%
Gly[G] 76 5.2%
His[H] 31 2.1%
Ile[I] 79 5.4%
Leu[L] 133 9.1%
Lys[K] 138 9.4%
Met[M] 34 2.3%
Phe[F] 48 3.3%
Pro[P] 59 4.0%
Ser[S] 118 8.0%
Thr[T] 76 5.2%
Trp[W] 18 1.2%
Tyr[Y] 45 3.1%
Val[V] 60 4.1%
Total Length 1468

Instability index
Instability index (II) 44.88
This classifies the protein as unstable

Atomic composition
Carbon 7380
Hydrogen 11712
Nitrogen 2086
Oxygen 2331
Sulfur 40
Total number of atoms 23549
Formula = C7380H11712N2086O2331S40

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 166425 M-1 cm-1
assuming NO Cys residues appear as half cystines 166050 M-1 cm-1
assuming all Cys residues are reduced 166050 M-1 cm-1
assuming all pairs of Cys residues form cystines 166425 M-1 cm-1

Aliphatic index
Aliphatic index 73.56

Coding Region Translation Calculations
Codon Bias 0.097
Codon Adaptation Index 0.170
Frequency of Optimal Codons 0.463
Hydropathicity of Protein -0.845
Aromaticity Score 0.076