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AB139631

Recombinant Human LCAT protein (denatured)

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Recombinant Human LCAT protein (denatured) is a Human Full Length protein, in the 25 to 440 aa range, expressed in Escherichia coli, with >85%, suitable for SDS-PAGE.

View Alternative Names

Phosphatidylcholine-sterol acyltransferase, 1-alkyl-2-acetylglycerophosphocholine esterase, Lecithin-cholesterol acyltransferase, Phospholipid-cholesterol acyltransferase, Platelet-activating factor acetylhydrolase, PAF acetylhydrolase, LCAT

1 Images
SDS-PAGE - Recombinant Human LCAT protein (denatured) (AB139631)
  • SDS-PAGE

Unknown

SDS-PAGE - Recombinant Human LCAT protein (denatured) (AB139631)

15% SDS-PAGE analysis of ab139631 (3μg).

This image was generated using the ascites version of the product.

Key facts

Purity

>85% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

P04180

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 10% Glycerol (glycerin, glycerine), 2.4% Urea, 0.32% Tris HCl

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Product details

This product was changed from ascites to tissue culture supernatant on 08/08/2019. Please note that the dilutions may need to be adjusted accordingly. If you have any questions, please do not hesitate to contact our scientific support team.
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Sequence info

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMGSHMFWLLNVLFPPHTTPKAELSNHTRPVILVPGCLGNQLEAKLDKPDVVNWMCYRKTEDFFTIWLDLNMFLPLGVDCWIDNTRVVYNRSSGLVSNAPGVQIRVPGFGKTYSVEYLDSSKLAGYLHTLVQNLVNNGYVRDETVRAAPYDWRLEPGQQEEYYRKLAGLVEEMHAAYGKPVFLIGHSLGCLHLLYFLLRQPQAWKDRFIDGFISLGAPWGGSIKPMLVLASGDNQGIPIMSSIKLKEEQRITTTSPWMFPSRMAWPEDHVFISTPSFNYTGRDFQRFFADLHFEEGWYMWLQSRDLLAGLPAPGVEVYCLYGVGLPTPRTYIYDHGFPYTDPVGVLYEDGDDTVATRSTELCGLWQGRQPQPVHLLPLHGIQHLNMVFSNLTLEHINAILLGAYRQGPPASPTASPEPPPPE","proteinLength":"Full Length","predictedMolecularWeight":"49.8 kDa","actualMolecularWeight":null,"aminoAcidEnd":440,"aminoAcidStart":25,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P04180","tags":[{"tag":"His","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

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

LCAT also known as lecithin-cholesterol acyltransferase is an enzyme with a molecular mass of approximately 68 kDa. It belongs to the family of esterases and is mainly expressed in the liver. LCAT circulates in the bloodstream playing a significant role in lipid metabolism by catalyzing the formation of cholesteryl esters from free cholesterol and phosphatidylcholine (lecithin) on the surface of high-density lipoproteins (HDL).
Biological function summary

This enzyme functions centrally in the maturation of high-density lipoprotein particles. LCAT interacts with and acts upon HDL converting nascent HDL into mature HDL by catalyzing the esterification of cholesterol. This process results in the sequestration of cholesterol within the core of HDL particles essential for reverse cholesterol transport to the liver. Moreover LCAT does not operate as part of a larger complex but is an active enzyme on its own within various lipid transport processes.

Pathways

LCAT's action significantly influences the lipid metabolism and reverse cholesterol transport pathways. In the lipid metabolism pathway it works closely with apolipoproteins such as apoA-I which serves as an activator. ApoA-I stabilizes the enzymatic action of LCAT promoting cholesterol homeostasis whereas LCAT ensures the efficient transfer of cholesterol to the liver within the reverse cholesterol transport pathway contributing to the maintenance of lipid balance.

LCAT deficiency can lead to conditions like familial LCAT deficiency and Fish Eye disease. These disorders are marked by abnormal cholesterol and lipid accumulation due to impaired LCAT activity. Apolipoproteins particularly apoA-I also demonstrate a significant connection as mutations or lack of apoA-I compromise LCAT activation exacerbating hyperlipidemia and related lipid disorders.
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Specifications

Form

Liquid

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General info

Function

Central enzyme in the extracellular metabolism of plasma lipoproteins. Synthesized mainly in the liver and secreted into plasma where it converts cholesterol and phosphatidylcholines (lecithins) to cholesteryl esters and lysophosphatidylcholines on the surface of high and low density lipoproteins (HDLs and LDLs) (PubMed : 10329423, PubMed : 19065001, PubMed : 26195816). The cholesterol ester is then transported back to the liver. Has a preference for plasma 16 : 0-18 : 2 or 18 : O-18 : 2 phosphatidylcholines (PubMed : 8820107). Also produced in the brain by primary astrocytes, and esterifies free cholesterol on nascent APOE-containing lipoproteins secreted from glia and influences cerebral spinal fluid (CSF) APOE- and APOA1 levels. Together with APOE and the cholesterol transporter ABCA1, plays a key role in the maturation of glial-derived, nascent lipoproteins. Required for remodeling high-density lipoprotein particles into their spherical forms (PubMed : 10722751). Catalyzes the hydrolysis of 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine (platelet-activating factor or PAF) to 1-O-alkyl-sn-glycero-3-phosphocholine (lyso-PAF) (PubMed : 8016111). Also catalyzes the transfer of the acetate group from PAF to 1-hexadecanoyl-sn-glycero-3-phosphocholine forming lyso-PAF (PubMed : 8016111). Catalyzes the esterification of (24S)-hydroxycholesterol (24(S)OH-C), also known as cerebrosterol to produce 24(S)OH-C monoesters (PubMed : 24620755).

Sequence similarities

Belongs to the AB hydrolase superfamily. Lipase family.

Post-translational modifications

O- and N-glycosylated. O-glycosylation on Thr-431 and Ser-433 consists of sialylated galactose beta 1-->3N-acetylgalactosamine structures. N-glycosylated sites contain sialylated triantennary and/or biantennary complex structures.

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Product protocols

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Target data

Central enzyme in the extracellular metabolism of plasma lipoproteins. Synthesized mainly in the liver and secreted into plasma where it converts cholesterol and phosphatidylcholines (lecithins) to cholesteryl esters and lysophosphatidylcholines on the surface of high and low density lipoproteins (HDLs and LDLs) (PubMed : 10329423, PubMed : 19065001, PubMed : 26195816). The cholesterol ester is then transported back to the liver. Has a preference for plasma 16 : 0-18 : 2 or 18 : O-18 : 2 phosphatidylcholines (PubMed : 8820107). Also produced in the brain by primary astrocytes, and esterifies free cholesterol on nascent APOE-containing lipoproteins secreted from glia and influences cerebral spinal fluid (CSF) APOE- and APOA1 levels. Together with APOE and the cholesterol transporter ABCA1, plays a key role in the maturation of glial-derived, nascent lipoproteins. Required for remodeling high-density lipoprotein particles into their spherical forms (PubMed : 10722751). Catalyzes the hydrolysis of 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine (platelet-activating factor or PAF) to 1-O-alkyl-sn-glycero-3-phosphocholine (lyso-PAF) (PubMed : 8016111). Also catalyzes the transfer of the acetate group from PAF to 1-hexadecanoyl-sn-glycero-3-phosphocholine forming lyso-PAF (PubMed : 8016111). Catalyzes the esterification of (24S)-hydroxycholesterol (24(S)OH-C), also known as cerebrosterol to produce 24(S)OH-C monoesters (PubMed : 24620755).
See full target information LCAT
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Complementary Products

Primary Antibodies

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Primary Antibodies

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