GRS2/YPR081C 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] 21 3.4%
Arg[R] 36 5.8%
Asn[N] 34 5.5%
Asp[D] 36 5.8%
Cys[C] 8 1.3%
Gln[Q] 25 4.0%
Glu[E] 46 7.4%
Gly[G] 37 6.0%
His[H] 13 2.1%
Ile[I] 44 7.1%
Leu[L] 58 9.4%
Lys[K] 46 7.4%
Met[M] 18 2.9%
Phe[F] 39 6.3%
Pro[P] 25 4.0%
Ser[S] 40 6.5%
Thr[T] 38 6.1%
Trp[W] 6 1.0%
Tyr[Y] 13 2.1%
Val[V] 35 5.7%
Total Length 618

Instability index
Instability index (II) 44.35
This classifies the protein as unstable

Atomic composition
Carbon 3174
Hydrogen 5007
Nitrogen 863
Oxygen 933
Sulfur 26
Total number of atoms 10003
Formula = C3174H5007N863O933S26

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 52870 M-1 cm-1
assuming NO Cys residues appear as half cystines 52370 M-1 cm-1
assuming all Cys residues are reduced 52370 M-1 cm-1
assuming all pairs of Cys residues form cystines 52870 M-1 cm-1

Aliphatic index
Aliphatic index 84.19

Coding Region Translation Calculations
Codon Bias 0.067
Codon Adaptation Index 0.134
Frequency of Optimal Codons 0.453
Hydropathicity of Protein -0.397
Aromaticity Score 0.094