MCM2/YBL023C 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] 52 6.0%
Arg[R] 77 8.9%
Asn[N] 43 5.0%
Asp[D] 69 7.9%
Cys[C] 9 1.0%
Gln[Q] 32 3.7%
Glu[E] 86 9.9%
Gly[G] 46 5.3%
His[H] 17 2.0%
Ile[I] 55 6.3%
Leu[L] 73 8.4%
Lys[K] 38 4.4%
Met[M] 18 2.1%
Phe[F] 25 2.9%
Pro[P] 36 4.1%
Ser[S] 68 7.8%
Thr[T] 36 4.1%
Trp[W] 3 0.3%
Tyr[Y] 26 3.0%
Val[V] 59 6.8%
Total Length 868

Instability index
Instability index (II) 53.14
This classifies the protein as unstable

Atomic composition
Carbon 4278
Hydrogen 6839
Nitrogen 1249
Oxygen 1384
Sulfur 27
Total number of atoms 13777
Formula = C4278H6839N1249O1384S27

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 55740 M-1 cm-1
assuming NO Cys residues appear as half cystines 55240 M-1 cm-1
assuming all Cys residues are reduced 55240 M-1 cm-1
assuming all pairs of Cys residues form cystines 55740 M-1 cm-1

Aliphatic index
Aliphatic index 83.21

Coding Region Translation Calculations
Codon Bias 0.150
Codon Adaptation Index 0.175
Frequency of Optimal Codons 0.489
Hydropathicity of Protein -0.637
Aromaticity Score 0.062