REP1/R0020C 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] 18 4.8%
Arg[R] 20 5.4%
Asn[N] 18 4.8%
Asp[D] 20 5.4%
Cys[C] 7 1.9%
Gln[Q] 16 4.3%
Glu[E] 34 9.1%
Gly[G] 18 4.8%
His[H] 12 3.2%
Ile[I] 30 8.0%
Leu[L] 24 6.4%
Lys[K] 27 7.2%
Met[M] 5 1.3%
Phe[F] 20 5.4%
Pro[P] 14 3.8%
Ser[S] 24 6.4%
Thr[T] 19 5.1%
Trp[W] 6 1.6%
Tyr[Y] 14 3.8%
Val[V] 27 7.2%
Total Length 373

Instability index
Instability index (II) 40.04
This classifies the protein as unstable

Atomic composition
Carbon 1941
Hydrogen 3002
Nitrogen 524
Oxygen 573
Sulfur 12
Total number of atoms 6052
Formula = C1941H3002N524O573S12

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 54235
assuming NO Cys residues appear as half cystines 53860
assuming all Cys residues are reduced 53860 M-1 cm-1
assuming all pairs of Cys residues form cystines 54235 M-1 cm-1

Aliphatic index
Aliphatic index 82.28

Coding Region Translation Calculations
Codon Bias -0.072
Codon Adaptation Index 0.100
Frequency of Optimal Codons 0.387
Hydropathicity of Protein -0.462
Aromaticity Score 0.107