RAD51/YER095W 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 9.8%
Arg[R] 20 5.0%
Asn[N] 13 3.2%
Asp[D] 27 6.8%
Cys[C] 8 2.0%
Gln[Q] 21 5.2%
Glu[E] 30 7.5%
Gly[G] 41 10.2%
His[H] 7 1.8%
Ile[I] 16 4.0%
Leu[L] 38 9.5%
Lys[K] 17 4.2%
Met[M] 13 3.2%
Phe[F] 14 3.5%
Pro[P] 13 3.2%
Ser[S] 27 6.8%
Thr[T] 19 4.8%
Trp[W] 0 0.0%
Tyr[Y] 8 2.0%
Val[V] 29 7.2%
Total Length 400

Instability index
Instability index (II) 37.37
This classifies the protein as stable

Atomic composition
Carbon 1856
Hydrogen 2973
Nitrogen 525
Oxygen 603
Sulfur 21
Total number of atoms 5978
Formula = C1856H2973N525O603S21

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 12420 M-1 cm-1
assuming NO Cys residues appear as half cystines 11920 M-1 cm-1
assuming all Cys residues are reduced 11920 M-1 cm-1
assuming all pairs of Cys residues form cystines 12420 M-1 cm-1

Aliphatic index
Aliphatic index 83.42

Coding Region Translation Calculations
Codon Bias 0.214
Codon Adaptation Index 0.173
Frequency of Optimal Codons 0.517
Hydropathicity of Protein -0.218
Aromaticity Score 0.055