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The Albumin Creatinine Ratio Assay Kit (ab241018) provides a simple, sensitive, and high throughput adaptable assay that detects albumin.

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Images

Functional Studies - Albumin Creatinine Ratio Assay Kit (AB241018), expandable thumbnail
  • Functional Studies - Albumin Creatinine Ratio Assay Kit (AB241018), expandable thumbnail
  • Functional Studies - Albumin Creatinine Ratio Assay Kit (AB241018), expandable thumbnail

Publications

Key facts

Detection method

Fluorescent

Sample types

Saliva, Urine, Serum

Target data

Function

Binds water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs (Probable). Its main function is the regulation of the colloidal osmotic pressure of blood (Probable). Major zinc transporter in plasma, typically binds about 80% of all plasma zinc (PubMed:19021548). Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity). Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity). Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli (PubMed:6234017). Does not prevent iron uptake by the bacterial siderophore aerobactin (PubMed:6234017).

Alternative names

What's included?

100 Test
Components
Albumin Assay Buffer II
1 x 7 mL
Albumin Diluent
1 x 7 mL
Albumin Probe
1 x 0.4 mL
Assay Buffer XXXIV
1 x 25 mL
BSA Standard II/ BSA
1 x 1 mL
Creatinase
1 x 1 Vial
Creatininase
1 x 1 Vial
Creatinine Standard
1 x 1 Vial
OxiRed Probe
1 x 0.2 mL
Sarcosine Enzyme Mix
1 x 1 Vial

Recommended products

The Albumin Creatinine Ratio Assay Kit (ab241018) provides a simple, sensitive, and high throughput adaptable assay that detects albumin.

Alternative names

Key facts

Detection method

Fluorescent

Sample types

Saliva, Urine, Serum

Storage

Shipped at conditions

Blue Ice

Appropriate short-term storage conditions

-20°C

Appropriate long-term storage conditions

-20°C

Storage information

-20°C

Notes

The Albumin Creatinine Ratio Assay Kit (ab241018) provides a simple, sensitive, and high throughput adaptable assay that detects albumin (detection range: 0.02- 2.5 mg/mL), creatinine (detection range: 0.002 -0.5 mg/mL) and Albumin-to-creatinine ratio.

The ACR ratio is determined in two steps: First, albumin is determined by using a probe (ab580) that specifically recognizes albumin (Ex/Em = 600/630 nm). Second, creatinine is converted to sarcosine via enzymatic reactions. Arcosine is specifically oxidized generating a product that reacts with a probe producing a chromophore that can be detected at 570 nm.

This product is manufactured by BioVision, an Abcam company and was previously called K551 Albumin-to-Creatinine Ratio (ACR). K551-100 is the same size as the 100 test size of ab241018.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

Albumin/Creatinine often abbreviated as the albumin to creatinine ratio (ACR) serves as an important marker in the body. Albumin is a plasma protein with a molecular weight of approximately 66.5 kDa. It is synthesized in the liver and widely expressed in the blood while creatinine a breakdown product of creatine phosphate is a small molecule produced in the muscles and excreted in urine. The albumin/creatinine ratio measures these levels in urine to assess excretion balance and renal function.

Biological function summary

The albumin and creatinine levels help evaluate kidney function and filtration efficiency. Albumin signifies the presence of larger proteins in urine when normal kidney filtering mechanisms are impaired. The presence and concentration of creatinine meanwhile reflect waste removal efficacy. The albumin/creatinine ratio provides a reliable estimation of microalbuminuria which is an elevation in urinary albumin considered indicative of early kidney damage. This ratio is not directly part of a complex but offers insight into the normal physiological role of kidneys.

Pathways

Albumin/creatinine measurements relate primarily to renal regulation and excretory pathways. They indicate how well glomeruli the filtering units in kidneys function relative to proteins and byproducts' reabsorption or excretion. These measurements tie to pathways involving renin-angiotensin-aldosterone system and vasopressin signaling with contacts to proteins like nephrin and podocin that maintain the integrity of the glomerular filtration barrier.

Associated diseases and disorders

Albumin/creatinine ratios possess strong correlations with conditions such as diabetes and hypertension. High levels of this ratio suggest an increased risk for diabetic nephropathy where persistent albuminuria develops as the disease progresses. In hypertension albuminuria signifies the strain and damage on kidney structures often exacerbating chronic kidney disease. This ratio is additionally linked with angiotensin-converting enzyme (ACE) frequently altered in these conditions to manage blood pressure and minimize kidney damage.

Product promise

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3 product images

  • Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018), expandable thumbnail

    Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018)

    BSA Standard Curve.

  • Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018), expandable thumbnail

    Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018)

    Creatinine Standard Curve.

  • Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018), expandable thumbnail

    Functional Studies - Albumin Creatinine Ratio Assay Kit (ab241018)

    Estimation of ACR in human urine in diabetic (1) and non-diabetic donors (2, and 3).

    For Albumin, 50 μL of undiluted samples and for Creatinine, 30 μL of diluted samples (100 times diluted using Creatinine Assay Buffer) were assayed following the kit protocol.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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