KAP104/YBR017C 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] 56 6.1%
Arg[R] 23 2.5%
Asn[N] 57 6.2%
Asp[D] 70 7.6%
Cys[C] 16 1.7%
Gln[Q] 37 4.0%
Glu[E] 64 7.0%
Gly[G] 35 3.8%
His[H] 19 2.1%
Ile[I] 76 8.3%
Leu[L] 111 12.1%
Lys[K] 44 4.8%
Met[M] 28 3.1%
Phe[F] 47 5.1%
Pro[P] 37 4.0%
Ser[S] 68 7.4%
Thr[T] 46 5.0%
Trp[W] 12 1.3%
Tyr[Y] 21 2.3%
Val[V] 51 5.6%
Total Length 918

Instability index
Instability index (II) 43.25
This classifies the protein as unstable

Atomic composition
Carbon 4649
Hydrogen 7261
Nitrogen 1175
Oxygen 1416
Sulfur 44
Total number of atoms 14545
Formula = C4649H7261N1175O1416S44

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 98290 M-1 cm-1
assuming NO Cys residues appear as half cystines 97290 M-1 cm-1
assuming all Cys residues are reduced 97290 M-1 cm-1
assuming all pairs of Cys residues form cystines 98290 M-1 cm-1

Aliphatic index
Aliphatic index 101.66

Coding Region Translation Calculations
Codon Bias 0.041
Codon Adaptation Index 0.144
Frequency of Optimal Codons 0.438
Hydropathicity of Protein -0.031
Aromaticity Score 0.087