SRP14/YDL092W 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] 7 4.8%
Arg[R] 5 3.4%
Asn[N] 8 5.5%
Asp[D] 7 4.8%
Cys[C] 2 1.4%
Gln[Q] 4 2.7%
Glu[E] 9 6.2%
Gly[G] 8 5.5%
His[H] 4 2.7%
Ile[I] 6 4.1%
Leu[L] 9 6.2%
Lys[K] 23 15.8%
Met[M] 3 2.1%
Phe[F] 6 4.1%
Pro[P] 5 3.4%
Ser[S] 17 11.6%
Thr[T] 9 6.2%
Trp[W] 1 0.7%
Tyr[Y] 4 2.7%
Val[V] 9 6.2%
Total Length 146

Instability index
Instability index (II) 35.91
This classifies the protein as stable

Atomic composition
Carbon 723
Hydrogen 1169
Nitrogen 205
Oxygen 221
Sulfur 5
Total number of atoms 2323
Formula = C723H1169N205O221S5

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 11585 M-1 cm-1
assuming NO Cys residues appear as half cystines 11460 M-1 cm-1
assuming all Cys residues are reduced 11460 M-1 cm-1
assuming all pairs of Cys residues form cystines 11585 M-1 cm-1

Aliphatic index
Aliphatic index 62.74

Coding Region Translation Calculations
Codon Bias 0.030
Codon Adaptation Index 0.145
Frequency of Optimal Codons 0.437
Hydropathicity of Protein -0.829
Aromaticity Score 0.075