SNF12/YNR023W 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] 33 5.8%
Arg[R] 21 3.7%
Asn[N] 53 9.4%
Asp[D] 35 6.2%
Cys[C] 2 0.4%
Gln[Q] 20 3.5%
Glu[E] 44 7.8%
Gly[G] 16 2.8%
His[H] 13 2.3%
Ile[I] 31 5.5%
Leu[L] 55 9.7%
Lys[K] 43 7.6%
Met[M] 17 3.0%
Phe[F] 21 3.7%
Pro[P] 30 5.3%
Ser[S] 56 9.9%
Thr[T] 33 5.8%
Trp[W] 4 0.7%
Tyr[Y] 11 1.9%
Val[V] 28 4.9%
Total Length 566

Instability index
Instability index (II) 41.20
This classifies the protein as unstable

Atomic composition
Carbon 2794
Hydrogen 4445
Nitrogen 775
Oxygen 898
Sulfur 19
Total number of atoms 8931
Formula = C2794H4445N775O898S19

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 38515 M-1 cm-1
assuming NO Cys residues appear as half cystines 38390 M-1 cm-1
assuming all Cys residues are reduced 38390 M-1 cm-1
assuming all pairs of Cys residues form cystines 38515 M-1 cm-1

Aliphatic index
Aliphatic index 79.43

Coding Region Translation Calculations
Codon Bias -0.001
Codon Adaptation Index 0.124
Frequency of Optimal Codons 0.409
Hydropathicity of Protein -0.626
Aromaticity Score 0.064