PRB1/YEL060C 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] 49 7.7%
Arg[R] 18 2.8%
Asn[N] 38 6.0%
Asp[D] 52 8.2%
Cys[C] 4 0.6%
Gln[Q] 21 3.3%
Glu[E] 42 6.6%
Gly[G] 55 8.7%
His[H] 27 4.3%
Ile[I] 35 5.5%
Leu[L] 45 7.1%
Lys[K] 60 9.4%
Met[M] 7 1.1%
Phe[F] 28 4.4%
Pro[P] 21 3.3%
Ser[S] 52 8.2%
Thr[T] 31 4.9%
Trp[W] 4 0.6%
Tyr[Y] 13 2.0%
Val[V] 33 5.2%
Total Length 635

Instability index
Instability index (II) 32.36
This classifies the protein as stable

Atomic composition
Carbon 3052
Hydrogen 4780
Nitrogen 866
Oxygen 979
Sulfur 11
Total number of atoms 9688
Formula = C3052H4780N866O979S11

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 41620 M-1 cm-1
assuming NO Cys residues appear as half cystines 41370 M-1 cm-1
assuming all Cys residues are reduced 41370 M-1 cm-1
assuming all pairs of Cys residues form cystines 41620 M-1 cm-1

Aliphatic index
Aliphatic index 71.92

Coding Region Translation Calculations
Codon Bias 0.371
Codon Adaptation Index 0.300
Frequency of Optimal Codons 0.630
Hydropathicity of Protein -0.660
Aromaticity Score 0.071