Lipopolysaccharide binding protein: Difference between revisions

Latest revision as of 16:48, 29 December 2024

Lipopolysaccharide-binding protein (LBP) is a protein that in humans is encoded by the LBP gene. It plays a crucial role in the immune system by binding to lipopolysaccharide (LPS), a component of the outer membrane of Gram-negative bacteria.

Function[edit]

LBP is involved in the recognition of bacterial endotoxins. It binds to LPS and facilitates its transfer to the CD14 receptor on the surface of macrophages and other immune cells. This interaction is critical for the activation of the innate immune response, leading to the production of cytokines and other inflammatory mediators.

Structure[edit]

LBP is a soluble protein found in the blood plasma. It is structurally similar to other members of the BPI/LBP/PLUNC protein family, which are involved in host defense mechanisms.

Clinical significance[edit]

Elevated levels of LBP are associated with sepsis and other inflammatory conditions. It is considered a biomarker for bacterial infections and can be used to assess the severity of systemic inflammatory response syndrome (SIRS).

References[edit]

External links[edit]

Template:PBB
Online Mendelian Inheritance in Man (OMIM) 153480

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-'''Lipopolysaccharide binding protein''' ('''LBP''') is a type of [[protein]] that plays a crucial role in the [[immune system]]'s response to [[bacterial infection]]. It is primarily produced in the [[liver]] and is found in the [[blood plasma]].
+{{Infobox protein
+| name = Lipopolysaccharide-binding protein
+| image = <!-- Image removed -->
+| caption = <!-- Caption removed -->
+| symbol = LBP
+| gene = LBP
+| organism = Homo sapiens
+}}
+'''Lipopolysaccharide-binding protein''' ('''LBP''') is a protein that in humans is encoded by the [[LBP (gene)|LBP gene]]. It plays a crucial role in the [[immune system]] by binding to [[lipopolysaccharide]] (LPS), a component of the outer membrane of [[Gram-negative bacteria]].
 == Function ==
-LBP is responsible for binding to [[lipopolysaccharides]] (LPS), which are components of the outer membrane of [[Gram-negative bacteria]]. This binding process is a key step in the body's immune response to bacterial infections. Once LBP has bound to LPS, it transfers the LPS to [[CD14]], a protein found on the surface of certain immune cells. This triggers a cascade of immune responses, including the release of [[cytokines]] and the activation of [[white blood cells]], which help to fight off the infection.
+LBP is involved in the recognition of bacterial [[endotoxin]]s. It binds to LPS and facilitates its transfer to the [[CD14]] receptor on the surface of [[macrophages]] and other immune cells. This interaction is critical for the activation of the [[innate immune response]], leading to the production of [[cytokines]] and other inflammatory mediators.
 == Structure ==
-The structure of LBP is complex, consisting of several different domains. The N-terminal domain is responsible for binding to LPS, while the C-terminal domain is involved in the transfer of LPS to CD14. The structure of LBP is similar to that of other [[lipid-binding proteins]], such as [[bile acid-binding protein]] and [[fatty acid-binding protein]].
+LBP is a soluble protein found in the [[blood plasma]]. It is structurally similar to other members of the [[BPI/LBP/PLUNC protein family]], which are involved in host defense mechanisms.
 == Clinical significance ==
-Abnormal levels of LBP in the blood can be indicative of a number of medical conditions. High levels of LBP are often seen in patients with [[sepsis]], a severe and potentially life-threatening response to infection. LBP levels can also be elevated in patients with [[liver disease]], [[kidney disease]], and certain types of [[cancer]]. As such, LBP is often used as a [[biomarker]] in the diagnosis and monitoring of these conditions.
+Elevated levels of LBP are associated with [[sepsis]] and other inflammatory conditions. It is considered a biomarker for [[bacterial infection]]s and can be used to assess the severity of [[systemic inflammatory response syndrome]] (SIRS).
-[[File:Lipopolysaccharide binding protein.jpg|thumb|right|Structure of Lipopolysaccharide binding protein]]
 == See also ==
-* [[Lipopolysaccharide]]
+* [[Endotoxin]]
-* [[Immune system]]
+* [[Sepsis]]
-* [[Protein]]
+* [[Innate immune system]]
-* [[Bacterial infection]]
 == References ==
 <references />
-[[Category:Proteins]]
+== External links ==
+* {{PBB|geneid=3929}}
+* {{OMIM|153480}}
+[[Category:Human proteins]]
 [[Category:Immune system]]
-[[Category:Medical terminology]]
+[[Category:Acute-phase proteins]]
-{{protein-stub}}
-{{medicine-stub}}