SUP45/YBR143C 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] 29 6.6%
Arg[R] 13 3.0%
Asn[N] 22 5.0%
Asp[D] 32 7.3%
Cys[C] 4 0.9%
Gln[Q] 15 3.4%
Glu[E] 39 8.9%
Gly[G] 31 7.1%
His[H] 4 0.9%
Ile[I] 27 6.2%
Leu[L] 41 9.4%
Lys[K] 41 9.4%
Met[M] 6 1.4%
Phe[F] 23 5.3%
Pro[P] 10 2.3%
Ser[S] 25 5.7%
Thr[T] 24 5.5%
Trp[W] 2 0.5%
Tyr[Y] 17 3.9%
Val[V] 32 7.3%
Total Length 437

Instability index
Instability index (II) 25.56
This classifies the protein as stable

Atomic composition
Carbon 2196
Hydrogen 3454
Nitrogen 564
Oxygen 683
Sulfur 10
Total number of atoms 6907
Formula = C2196H3454N564O683S10

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 36580 M-1 cm-1
assuming NO Cys residues appear as half cystines 36330 M-1 cm-1
assuming all Cys residues are reduced 36330 M-1 cm-1
assuming all pairs of Cys residues form cystines 36580 M-1 cm-1

Aliphatic index
Aliphatic index 88.56

Coding Region Translation Calculations
Codon Bias 0.331
Codon Adaptation Index 0.334
Frequency of Optimal Codons 0.611
Hydropathicity of Protein -0.340
Aromaticity Score 0.096