SSA3/YBL075C 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] 59 9.1%
Arg[R] 34 5.2%
Asn[N] 32 4.9%
Asp[D] 51 7.9%
Cys[C] 2 0.3%
Gln[Q] 20 3.1%
Glu[E] 49 7.6%
Gly[G] 53 8.2%
His[H] 6 0.9%
Ile[I] 39 6.0%
Leu[L] 46 7.1%
Lys[K] 46 7.1%
Met[M] 9 1.4%
Phe[F] 27 4.2%
Pro[P] 25 3.9%
Ser[S] 44 6.8%
Thr[T] 54 8.3%
Trp[W] 1 0.2%
Tyr[Y] 13 2.0%
Val[V] 39 6.0%
Total Length 649

Instability index
Instability index (II) 29.77
This classifies the protein as stable

Atomic composition
Carbon 3076
Hydrogen 4928
Nitrogen 862
Oxygen 1013
Sulfur 11
Total number of atoms 9890
Formula = C3076H4928N862O1013S11

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 24995 M-1 cm-1
assuming NO Cys residues appear as half cystines 24870 M-1 cm-1
assuming all Cys residues are reduced 24870 M-1 cm-1
assuming all pairs of Cys residues form cystines 24995 M-1 cm-1

Aliphatic index
Aliphatic index 77.60

Coding Region Translation Calculations
Codon Bias 0.155
Codon Adaptation Index 0.177
Frequency of Optimal Codons 0.496
Hydropathicity of Protein -0.489
Aromaticity Score 0.063