GAB1/YLR459W 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] 23 5.8%
Arg[R] 10 2.5%
Asn[N] 16 4.1%
Asp[D] 8 2.0%
Cys[C] 4 1.0%
Gln[Q] 12 3.0%
Glu[E] 7 1.8%
Gly[G] 18 4.6%
His[H] 6 1.5%
Ile[I] 44 11.2%
Leu[L] 66 16.8%
Lys[K] 12 3.0%
Met[M] 5 1.3%
Phe[F] 37 9.4%
Pro[P] 19 4.8%
Ser[S] 39 9.9%
Thr[T] 15 3.8%
Trp[W] 8 2.0%
Tyr[Y] 20 5.1%
Val[V] 25 6.3%
Total Length 394

Instability index
Instability index (II) 39.61
This classifies the protein as stable

Atomic composition
Carbon 2159
Hydrogen 3284
Nitrogen 484
Oxygen 527
Sulfur 9
Total number of atoms 6463
Formula = C2159H3284N484O527S9

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 74050 M-1 cm-1
assuming NO Cys residues appear as half cystines 73800 M-1 cm-1
assuming all Cys residues are reduced 73800 M-1 cm-1
assuming all pairs of Cys residues form cystines 74050 M-1 cm-1

Aliphatic index
Aliphatic index 133.12

Coding Region Translation Calculations
Codon Bias 0.096
Codon Adaptation Index 0.115
Frequency of Optimal Codons 0.454
Hydropathicity of Protein 0.874
Aromaticity Score 0.165