REC107/YJR021C 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 5.7%
Arg[R] 21 6.7%
Asn[N] 17 5.4%
Asp[D] 21 6.7%
Cys[C] 2 0.6%
Gln[Q] 13 4.1%
Glu[E] 29 9.2%
Gly[G] 8 2.5%
His[H] 11 3.5%
Ile[I] 11 3.5%
Leu[L] 32 10.2%
Lys[K] 26 8.3%
Met[M] 12 3.8%
Phe[F] 5 1.6%
Pro[P] 8 2.5%
Ser[S] 38 12.1%
Thr[T] 22 7.0%
Trp[W] 2 0.6%
Tyr[Y] 3 1.0%
Val[V] 15 4.8%
Total Length 314

Instability index
Instability index (II) 46.30
This classifies the protein as unstable

Atomic composition
Carbon 1515
Hydrogen 2489
Nitrogen 457
Oxygen 508
Sulfur 14
Total number of atoms 4983
Formula = C1515H2489N457O508S14

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 15595 M-1 cm-1
assuming NO Cys residues appear as half cystines 15470 M-1 cm-1
assuming all Cys residues are reduced 15470 M-1 cm-1
assuming all pairs of Cys residues form cystines 15595 M-1 cm-1

Aliphatic index
Aliphatic index 72.99

Coding Region Translation Calculations
Codon Bias 0.081
Codon Adaptation Index 0.107
Frequency of Optimal Codons 0.447
Hydropathicity of Protein -0.861
Aromaticity Score 0.032