Description
Calculate a supplied labeled-protein fraction.
Biochemical quantities depend on species definitions, mass versus amount basis, reference states, blank models and assay conditions. A free/bound difference does not establish equilibrium, a per-volume activity differs from activity per protein mass, and a dilution factor differs from its reciprocal aliquot fraction.
Calculate a supplied labeled-protein fraction.
When to use this tool
Use Protein Fractional Labeling Input when you already have labeledProteinAmount, totalProteinAmount and need to calculate a supplied labeled-protein fraction.
How to use the tool and how it works
- Enter labeledProteinAmount, totalProteinAmount. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read labeledFraction, unlabeledAmount. Use the output convention below.
Require totalProteinAmount>0 and labeled amount within [0,total]; return labeled/total and total-labeled.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| labeledProteinAmount | Labeled Protein Amount | Required. Finite number; minimum 0. |
| totalProteinAmount | Total Protein Amount | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| labeledFraction | Labeled Fraction | Required. Finite number. |
| unlabeledAmount | Unlabeled Amount | Required. Finite number. |
{
"input": {
"labeledProteinAmount": 3,
"totalProteinAmount": 12
},
"output": {
"labeledFraction": 0.25,
"unlabeledAmount": 9
}
}Limitations and assumptions
- Use the same molecular or mass basis. The fraction does not infer labeling efficiency, modification sites, purity or biological effects.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use the full assay, reaction and calibration method with verified sample records. Check units, reference definitions, blanks and experimental assumptions before interpreting a local product, fraction or rate as a valid biochemical measurement.
References
Similar or alternative tools
- Protein Tag Mass Fraction
Calculate a supplied tag-plus-protein mass and tag mass fraction.
- Binding Fraction Free Bound Crosswalk
Calculate supplied free and bound fractions of a total amount.