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P1742

Sigma-Aldrich

Prealbumin from human plasma

lyophilized powder

Synonym(s):

Thyroxine binding prealbumin, Transthyretin

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About This Item

CAS Number:
87090-18-4
MDL number:
MFCD00132069
UNSPSC Code:
12352202
NACRES:
NA.25

biological source

human plasma

Quality Level

200

Assay

≥95% (SDS-PAGE)

form

lyophilized powder

technique(s)

immunoelectrophoresis: suitable
immunoprecipitation (IP): suitable

solubility

H2O: soluble 1 mg/mL

ε (extinction coefficient)

13.5 at 280 nm at 1%

UniProt accession no.

P02766

storage temp.

−20°C

Gene Information

human ... TTR(7276)

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General description

Human prealbumin is a product of chromosome 18. It is a serum protein, synthesized primarily in the liver. It is a tetrameric protein with a molecular weight of 55 kDa. Human prealbumin is composed of four identical non-covalently bound monomers of 127 amino acid residues arranged with tetrahedral symmetry.

Application

Human prealbumin was used to study reduced transthyretin expression in sera of lung cancer.
Prealbumin from human plasma has been used as a positive control in immunoprecipitation as a reference standard in quantitative rocket immunoelectrophoresis for quantification of cerebrospinal fluid.

Biochem/physiol Actions

Human prealbumin has been observed in carcinoid tumors.
Prealbumin levels are indictors of malnutrition and may be modulated during inflammation. It is regarded as potential marker of protein energy malnutrition (PEM) during chronic kidney failure supported dialysis. Low levels of prealbumin poses high risk to heart failure (HF).

Packaging

Package size based on protein content

Physical form

Lyophilized powder containing sodium phosphate and NaCl

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

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    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What is the molecular weight of Product P1742, Prealbumin from human plasma?

    The molecular weight has been reported to be 54,980 Daltons. Referece: The Plasma Proteins, 2nd edition (1975) p. 60.

  6. What is the volume from which Product P1742, Prealbumin from human plasma, is lyophilized from?

    The starting volume is lot specific. Please contact Technical Service to obtain the exact volume of your lot of interest.

  7. What is the solubility of Product P1742, Prealbumin from human plasma?

    This product is soluble in water at 1mg/mL.

  8. What is the purity of Product P1742, Prealbumin from human plasma?

    Information about purity can be found on the lot specific certificate of analysis.

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Prealbumin is as important as albumin in the nutritional assessment of hemodialysis patients
Chertow GM, et al.
Kidney International, 58(6), 2512-2517 (2000)
K Nelson et al.
International journal of cancer, 15(5), 806-814 (1975-05-15)
Spleen cells from BALB/c mice which either bore syngeneic sarcomas or were normal controls were cultured in vitro. The culture supernatants of spleen cells from tumor-bearing mice inhibited (blocked) specific cell-mediated cytotoxicity to the tumor borne by the spleen donor.
Haruki Koike et al.
Journal of neurology, 255(10), 1526-1533 (2008-09-30)
Through the development of gene diagnostic techniques, late-onset transthyretin Met30-associated familial amyloid polyneuropathy (FAP TTR Met30) has been shown to be more prevalent than is generally believed. To examine the electrophysiological features of late-onset FAP TTR Met30 unrelated to endemic
Takashi Ito et al.
Internal medicine (Tokyo, Japan), 45(20), 1173-1175 (2006-11-16)
Previously no functional study has been available for the mechanism of constipation in familial amyloid polyneuropathy (FAP). We performed a gut function test in a 78-year-old woman with transthyretin-type FAP who had severe constipation. The gut function test showed a
Minori Kodaira et al.
Amyloid : the international journal of experimental and clinical investigation : the official journal of the International Society of Amyloidosis, 18(1), 10-18 (2011-01-26)
The process of deterioration of peripheral nerve function in familial amyloid polyneuropathy (FAP) with amyloidogenic transthyretin (ATTR) Val30Met has not been systematically evaluated hitherto. We performed nerve conduction studies in 69 patients with FAP with ATTR Val30Met from one of
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