IMA4/YJL221C 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 4.9%
Arg[R] 30 5.1%
Asn[N] 36 6.1%
Asp[D] 42 7.1%
Cys[C] 5 0.8%
Gln[Q] 11 1.9%
Glu[E] 50 8.5%
Gly[G] 33 5.6%
His[H] 14 2.4%
Ile[I] 34 5.8%
Leu[L] 38 6.5%
Lys[K] 44 7.5%
Met[M] 10 1.7%
Phe[F] 36 6.1%
Pro[P] 30 5.1%
Ser[S] 50 8.5%
Thr[T] 29 4.9%
Trp[W] 20 3.4%
Tyr[Y] 27 4.6%
Val[V] 21 3.6%
Total Length 589

Instability index
Instability index (II) 32.02
This classifies the protein as stable

Atomic composition
Carbon 3103
Hydrogen 4622
Nitrogen 818
Oxygen 927
Sulfur 15
Total number of atoms 9485
Formula = C3103H4622N818O927S15

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 150480 M-1 cm-1
assuming NO Cys residues appear as half cystines 150230 M-1 cm-1
assuming all Cys residues are reduced 150230 M-1 cm-1
assuming all pairs of Cys residues form cystines 150480 M-1 cm-1

Aliphatic index
Aliphatic index 62.94

Coding Region Translation Calculations
Codon Bias 0.277
Codon Adaptation Index 0.247
Frequency of Optimal Codons 0.576
Hydropathicity of Protein -0.751
Aromaticity Score 0.141