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C3028

Colipase from porcine pancreas

essentially salt-free, lyophilized powder

Synonyme(s) :

Colipase from hog pancreas

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0.5 mg
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474.00 CHF

A propos de cet article

Numéro CAS:
UNSPSC Code:
12352204
EC Number:
259-490-1
NACRES:
NA.54
MDL number:
Assay:
≥95% (Lowry)
Biological source:
Porcine pancreas
Concentration:
≥500 μ protein/vial

474.00 CHF


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biological source

Porcine pancreas

Quality Segment

assay

≥95% (Lowry)

form

essentially salt-free, lyophilized powder

concentration

≥500 μ protein/vial

color

white to faint yellow

solubility

H2O: soluble 1.9-2.1 mg/mL, clear, colorless to faintly yellow

suitability

suitable for molecular biology

UniProt accession no.

application(s)

food and beverages

storage temp.

−20°C

Gene Information

pig ... CLPS(397407)

General description

Research Area: Cell Signaling
Colipase is a member of a group of small cysteine-rich proteins characterized by a limited secondary structure. Its structure is relatively flat, measuring 25×30×35 Å, resembling an arrangement of protruding fingers interconnected at one end by a complex network of five disulfide bridges. The colipase structure comprises two small domains with closely related topology.[1]
The gene colipase (CLPS) encodes a lipolytic enzyme that is majorly expressed in the exocrine pancreas. This protein is also found in the stomach and intestine. Its structure includes 17 amino acid signal peptides and a five amino acid pro-piece at the N-terminus.

Application

Colipase from porcine pancreas has been used:

  • in the enzyme solution for lipase assay
  • in an enzyme mixture to simulate gastrointestinal digestion
  • as one of the apparent critical factors to study its effect on lycopene in vitro accessibility

Biochem/physiol Actions

Colipase is involved in lipid metabolism and apoptosis signaling. It is crucial for fat digestion. It is a pancreatic protein that prevents the denaturation of lipase and enables its attachment to the lipid-water interphase of the droplet. Colipase makes lipase accessible to the inner core of triacylglycerol. Defective colipase secretion induced by an insufficient exocrine pancreatic function minimizes the luminal hydrolysis of dietary fat. Lack of congenital lipase or colipase causes pancreatic fat malabsorption.
Colipase, a small protein cofactor, is essential for efficient dietary lipid hydrolysis by pancreatic lipase. It attaches to the non-catalytic C-terminal domain of the lipase, stabilizing an active conformation and significantly enhancing the overall hydrophobic binding site.[1] This pancreatic exocrine protein aids in the adsorption of pancreatic triglyceride lipase (PTL) to the substrate lipid-water interface.

Features and Benefits

  • Overcomes the inhibition of lipase by bile salts.
  • Activity can be demonstrated turbidimetrically in an emulsion of triolein and sodium deoxycholate together with porcine pancreatic lipase.

Preparation Note

Dissolves in water to form a clear, colorless to faint yellow colored solution at 1.9-2.1 mg/mL concentration.

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Cet article
P712526745C4879
description

essentially salt-free, lyophilized powder

description

powder, ≥400 units/mg protein

description

lyophilized, powder, white, ~35 U/mg

description

essentially salt-free, lyophilized powder

Gene Information

pig ... CLPS(397407)

Gene Information

pig ... LOC396892(396892)

Gene Information

-

Gene Information

cow ... CTRB1(618826)

biological source

Porcine pancreas

biological source

Porcine gastric mucosa

biological source

Porcine pancreas

biological source

bovine pancreas

assay

≥95% (Lowry)

assay

-

assay

-

assay

-

application(s)

food and beverages

application(s)

-

application(s)

-

application(s)

-

form

essentially salt-free, lyophilized powder

form

powder

form

powder

form

essentially salt-free, lyophilized powder

suitability

suitable for molecular biology

suitability

-

suitability

-

suitability

-


Classe de stockage

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Questions

1–2 of 2 Questions  
  1. What is the molecular weight of Product C3028, Colipase from porcine pancreas?

    1 answer
    1. According to Biochim. Biophys. Acta, 271, 400 (1972) the molecular weight of this protein is approximately 10,000 daltons, based on analysis by several techniques (diffusion sedimentation, and gel filtration). A molecular weight of 10,325 daltons has been calculated based on the amino acid composition and amino acid sequence of colipase, which is described in the Journal of Lipid Research, 20, 805-816, (1979).This product is likely to be a mixture of Colipase I and II as described in the following reference: Erlanson, C., et al., Biochim. Biophys. Acta, 310, 437, (1973). This is based on our SDS-PAGE results. The gel pattern shows two major bands, which probably correspond to the two forms of colipases. Minor bands at higher molecular weight may be pro-colipases, or perhaps other unrelated porcine pancreatic proteins.

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  2. What is the Department of Transportation shipping information for this product?

    1 answer
    1. 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.

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