Receptor Occupancy Calculator
Restricted non cooperative one-site fractionaloccupancyfreeC/(C+Kd), equilibrium matched same units, no receptor reserve/depletion/clinical receptor inference. Actual independently matched observations/units and protocol, not diagnosis, causal mechanism, clinical decision or validated individual prediction.
Description
A one-site noncooperative equilibrium model expresses occupancy in terms of free ligand concentration and dissociation constant.
A one-site noncooperative equilibrium model expresses occupancy in terms of free ligand concentration and dissociation constant.1
This tool evaluates that restricted model without accounting for receptor reserve, depletion or patient response.
When to use Receptor Occupancy Calculator
This tool evaluates that restricted model without accounting for receptor reserve, depletion or patient response.
How to use Receptor Occupancy Calculator and how it works
- Prepare free ligand concentration, independent one site kd, using the input definitions and matching units below.
- Enter the required fields and run Receptor Occupancy Calculator.
- Read result.value using the units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualFreeLigandConcentration | Actual Free Ligand Concentration. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| callerIndependentOneSiteKd | Caller Independent One Site Kd. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Require nonnegative free ligand concentration and positive independently established one-site Kd in the same unit. Return C/(C+Kd) as a dimensionless occupancy fraction. Zero C gives zero; no cooperative binding, ligand depletion or receptor-reserve correction occurs.
occupancyFraction=C/(C+Kd) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric model result on the ratio, score, constant or density basis explained above. | number |
{
"input": {
"actualFreeLigandConcentration": 2,
"callerIndependentOneSiteKd": 2
},
"output": {
"result": {
"value": 0.5
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Synchrony Index Calculator for a complementary operation: Circular vector strength measures how concentrated assigned spike phases are around a common direction.
Use Stevens Power Law Calculator for a complementary operation: Stevens' power law models perceived magnitude as a calibrated scale times stimulus magnitude raised to an exponent.
References
-
Receptor Occupancy Calculator — tool.io
Similar or alternative tools
- Synchrony Index Calculator
Circular vector strength measures how concentrated assigned spike phases are around a common direction.
- Stevens Power Law Calculator
Stevens' power law models perceived magnitude as a calibrated scale times stimulus magnitude raised to an exponent.