SSU1/YPL092W 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] 28 6.1%
Arg[R] 12 2.6%
Asn[N] 23 5.0%
Asp[D] 8 1.7%
Cys[C] 10 2.2%
Gln[Q] 9 2.0%
Glu[E] 18 3.9%
Gly[G] 25 5.5%
His[H] 8 1.7%
Ile[I] 42 9.2%
Leu[L] 52 11.4%
Lys[K] 21 4.6%
Met[M] 21 4.6%
Phe[F] 33 7.2%
Pro[P] 16 3.5%
Ser[S] 32 7.0%
Thr[T] 27 5.9%
Trp[W] 12 2.6%
Tyr[Y] 28 6.1%
Val[V] 33 7.2%
Total Length 458

Instability index
Instability index (II) 43.04
This classifies the protein as unstable

Atomic composition
Carbon 2468
Hydrogen 3745
Nitrogen 575
Oxygen 630
Sulfur 31
Total number of atoms 7449
Formula = C2468H3745N575O630S31

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 108345 M-1 cm-1
assuming NO Cys residues appear as half cystines 107720 M-1 cm-1
assuming all Cys residues are reduced 107720 M-1 cm-1
assuming all pairs of Cys residues form cystines 108345 M-1 cm-1

Aliphatic index
Aliphatic index 107.05

Coding Region Translation Calculations
Codon Bias 0.010
Codon Adaptation Index 0.110
Frequency of Optimal Codons 0.419
Hydropathicity of Protein 0.526
Aromaticity Score 0.159