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Lipoprotein Receptor-related Protein
Lipoprotein receptor-related proteins, low density lipoprotein receptor-related proteins (HGNC) or prolow-density lipoprotein receptor-related protein (UniProt), abbreviated LRP, are a group of proteins. They include: *LRP1 * LRP1B *LRP2 (megalin) *LRP3 * LRP4 *LRP5 *LRP6 * LRP8, apolipoprotein e receptor *LRP10 * LRP11 *LRP12 Low density lipoprotein receptor-related protein 1 (LRP1), also known as alpha-2-macroglobulin receptor (A2MR), apolipoprotein E receptor (APOER) or cluster of differentiation 91 (CD91), is a protein forming a receptor found in the plasma membran ... See also * LRPAP1 (low density lipoprotein receptor-related protein associated protein 1) Lipoprotein receptor-related proteins are co-receptors for Wnt signaling. {{Lipoprotein metabolism Human proteins Lipoprotein receptor-related proteins are co-receptors for Wnt signaling. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HGNC
The HUGO Gene Nomenclature Committee (HGNC) is a committee of the Human Genome Organisation (HUGO) that sets the standards for human gene nomenclature. The HGNC approves a ''unique'' and ''meaningful'' name for every known human gene, based on a query of experts. In addition to the name, which is usually 1 to 10 words long, the HGNC also assigns a symbol (a short group of characters) to every gene. As with an SI symbol, a gene symbol is like an abbreviation but is more than that, being a second unique name that can stand on its own just as much as substitute for the longer name. It may not necessarily "stand for" the initials of the name, although many gene symbols do reflect that origin. Purpose Especially gene abbreviations/symbols but also full gene names are often not specific for a single gene. A marked example is CAP which can refer to any of 6 different genes (BRD4'', CAP1'', HACD1'', LNPEP'', SERPINB6'', and SORBS1''). The HGNC short gene names, or gene symbols, unlike ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UniProt
UniProt is a freely accessible database of protein sequence and functional information, many entries being derived from genome sequencing projects. It contains a large amount of information about the biological function of proteins derived from the research literature. It is maintained by the UniProt consortium, which consists of several European bioinformatics organisations and a foundation from Washington, DC, United States. The UniProt consortium The UniProt consortium comprises the European Bioinformatics Institute (EBI), the Swiss Institute of Bioinformatics (SIB), and the Protein Information Resource (PIR). EBI, located at the Wellcome Trust Genome Campus in Hinxton, UK, hosts a large resource of bioinformatics databases and services. SIB, located in Geneva, Switzerland, maintains the ExPASy (Expert Protein Analysis System) servers that are a central resource for proteomics tools and databases. PIR, hosted by the National Biomedical Research Foundation (NBRF) at the Geor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity. A linear chain of amino acid residues is called a polypeptide. A protein contains at least one long polypeptide. Short polypeptides, containing less than 20–30 residues, are rarely considered to be proteins and are commonly called peptides. The individual amino acid residues are bonded together by peptide bonds and adjacent amino acid residues. The sequence of amino acid residue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP1
Low density lipoprotein receptor-related protein 1 (LRP1), also known as alpha-2-macroglobulin receptor (A2MR), apolipoprotein E receptor (APOER) or cluster of differentiation 91 (CD91), is a protein forming a receptor found in the plasma membrane of cells involved in receptor-mediated endocytosis. In humans, the LRP1 protein is encoded by the ''LRP1'' gene. LRP1 is also a key signalling protein and, thus, involved in various biological processes, such as lipoprotein metabolism and cell motility, and diseases, such as neurodegenerative diseases, atherosclerosis, and cancer. Structure The ''LRP1'' gene encodes a 600 kDa precursor protein that is processed by furin in the trans-Golgi complex, resulting in a 515 kDa alpha-chain and an 85 kDa beta-chain associated noncovalently. As a member of the LDLR family, LRP1 contains cysteine-rich complement-type repeats, EGF (gene) repeats, β-propeller domains, a transmembrane domain, and a cytoplasmic domain. The extracellular domain of L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP1B
Low-density lipoprotein receptor-related protein 1B is a protein that in humans is encoded by the ''LRP1B'' gene. Function LRP1B belongs to the LDL receptor The low-density lipoprotein receptor (LDL-R) is a mosaic protein of 839 amino acids (after removal of 21-amino acid signal peptide) that mediates the endocytosis of cholesterol-rich low-density lipoprotein (LDL). It is a cell-surface receptor ... gene family. These receptors play a wide variety of roles in normal cell function and development due to their interactions with multiple ligands. References Further reading * * * * * * * * * * * {{gene-2-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP2
Low density lipoprotein receptor-related protein 2 also known as LRP-2 or megalin is a protein which in humans is encoded by the ''LRP2'' gene. Function LRP2 was identified as the antigen of rat experimental membranous nephropathy (Heyman nephritis) and originally named gp330 and subsequently megalin and later LRP2. LRP2/megalin is a multiligand binding receptor found in the plasma membrane of many absorptive epithelial cells. LRP2/megalin is a member of a family of receptors with structural similarities to the low density lipoprotein receptor ( LDLR). LRP2/megalin functions to mediate endocytosis of ligands leading to degradation in lysosomes or transcytosis. LRP2/megalin can also form complexes with cubilin: those complexes are able to reabsorb several molecules and can be inhibited by sodium maleate. LRP2 is expressed in epithelial cells of the thyroid (thyrocytes), where it can serve as a receptor for the protein thyroglobulin (Tg). Clinical significance Mutations in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP3
Low density lipoprotein receptor-related protein 3 (LRP-3) is a protein that in humans is encoded by the ''LRP3'' gene In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba .... References Further reading * * * {{gene-19-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-density Lipoprotein Receptor-related Protein 4
Low-density lipoprotein receptor-related protein 4 (LRP-4), also known as multiple epidermal growth factor-like domains 7 (MEGF7), is a protein that in humans is encoded by the ''LRP4'' gene. LRP-4 is a member of the Lipoprotein receptor-related protein family and may be a regulator of Wnt signaling The Wnt signaling pathways are a group of signal transduction pathways which begin with proteins that pass signals into a cell through cell surface receptors. The name Wnt is a portmanteau created from the names Wingless and Int-1. Wnt signaling .... Clinical significance Mutations in this gene are associated with Cenani Lenz syndactylism. Autoantibodies against LRP4 have been connected to a small fraction of myasthenia gravis cases. References Further reading * * * * * * {{gene-11-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP5
Low-density lipoprotein receptor-related protein 5 is a protein that in humans is encoded by the ''LRP5'' gene. LRP5 is a key component of the LRP5/LRP6/Frizzled co-receptor group that is involved in canonical Wnt pathway. Mutations in LRP5 can lead to considerable changes in bone mass. A loss-of-function mutation causes osteoporosis pseudoglioma syndrome with a decrease in bone mass, while a gain-of-function mutation causes drastic increases in bone mass. Structure LRP5 is a transmembrane low-density lipoprotein receptor that shares a similar structure with LRP6. In each protein, about 85% of its 1600-amino-acid length is extracellular. Each has four β-propeller motifs at the amino terminal end that alternate with four epidermal growth factor (EGF)-like repeats. Most extracellular ligands bind to LRP5 and LRP6 at the β-propellers. Each protein has a single-pass, 22-amino-acid segment that crosses the cell membrane and a 207-amino-acid segment that is internal to the cell. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP6
Low-density lipoprotein receptor-related protein 6 is a protein that in humans is encoded by the ''LRP6'' gene. LRP6 is a key component of the LRP5/LRP6/Frizzled co-receptor group that is involved in canonical Wnt pathway. Structure LRP6 is a transmembrane low-density lipoprotein receptor that shares a similar structure with LRP5. In each protein, about 85% of its 1600-amino-acid length is extracellular. Each has four β-propeller motifs at the amino terminal end that alternate with four epidermal growth factor (EGF)-like repeats. Most extracellular ligands bind to LRP5 and LRP6 at the β-propellers. Each protein has a single-pass, 22-amino-acid segment that crosses the cell membrane and a 207-amino-acid segment that is internal to the cell. Function LRP6 acts as a co-receptor with LRP5 and the Frizzled protein family members for transducing signals by Wnt proteins through the canonical Wnt pathway. Interactions Canonical WNT signals are transduced through Frizzled receptor an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP8
Low-density lipoprotein receptor-related protein 8 (LRP8), also known as apolipoprotein E receptor 2 (ApoER2), is a protein that in humans is encoded by the ''LRP8'' gene. ApoER2 is a cell surface receptor that is part of the low-density lipoprotein receptor family. These receptors function in signal transduction and endocytosis of specific ligands. Through interactions with one of its ligands, reelin, ApoER2 plays an important role in embryonic neuronal migration and postnatal long-term potentiation. Another LDL family receptor, VLDLR, also interacts with reelin, and together these two receptors influence brain development and function. Decreased expression of ApoER2 is associated with certain neurological diseases. Structure ApoER2 is a protein made up of 870 amino acids. It is separated into a ligand binding domain of eight ligand binding regions, an EGF-like domain containing three cysteine-rich repeats, an O-linked glycosylation domain of 89 amino acids, a transmembrane do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LRP10
Low-density lipoprotein receptor-related protein 10 is a protein that in humans is encoded by the ''LRP10'' gene In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba .... References Further reading * * * * * * * * {{gene-14-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
