ACHE
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| Acetylcholinesterase (Yt blood group)
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| Available structures: For the file format that describes the 3D structures of molecules found in the Protein Data Bank, see Protein Data Bank (file format).
The Protein Data Bank (PDB) is a repository for 3-D structural data of proteins and nucleic acids. These data, typically obtained by X-ray crystallography or NMR spectroscopy, are submitted by biologists and biochemists from around the world, are released into the public domain, and can be accessed for free. HistoryFounded in 1971 by Drs. Edgar Meyer and Walter Hamilton Brookhaven National Laboratory, management of the Protein Data Bank was transferred in 1998 to members of the Research Collaboratory for Structural Bioinformatics (RCSB). The Worldwide Protein Data Bank (wwPDB) consists of organizations that act as deposition, data processing and distribution centers for PDB data. The founding members are RCSB PDB (USA), MSD-EBI (Europe) and PDBj (Japan). The BMRB (USA) group joined the wwPDB in 2006. The mission of the wwPDB is to maintain a single Protein Data Bank Archive of macromolecular structural data that is freely and publicly available to the global community. The PDB is a key resource in structural biology and is critical to more recent work in structural genomics. Countless derived databases and projects have been developed to integrate and classify the PDB in terms of protein structure, protein function and protein evolution. GrowthWhen the PDB was originally founded it contained just 7 protein structures. Since then it has undergone an approximate exponential growth in the number of structures, which does not show any sign of falling off. The growth rate of the PDB has been the subject of fairly extensive analysis. ContentsAs of 26 September, 2006, the database contained 39,051 released atomic coordinate entries (or "structures"), 35,767 of that proteins, the rest being nucleic acids, nucleic acid-protein complexes, and a few other molecules. About 5,000 new structures are released each year. Data are stored in the mmCIF format specifically developed for the purpose. Note that the database stores information about the exact location of all atoms in a large biomolecule (although, usually without the hydrogen atoms, as their positions are more of a statistical estimate); if one is only interested in sequence data, i.e. the list of amino acids making up a particular protein or the list of nucleotides making up a particular nucleic acid, the much larger databases from Swiss-Prot and the International Nucleotide Sequence Database Collaboration should be used. StatisticsAs of 11 September, 2007, the "PDB Holdings List" at RCSB reported the following statistics:
Note that theoretical models are no longer accepted in the PDB. 22461 structures in the PDB have a structure factor file. 3138 structures in the PDB have an NMR restraint file. The current breakdown of holdings is updated weekly. File formatThrough the years the PDB file format has undergone many, many changes and revisions. Its original format was dictated by the width of computer punch cards.
This legacy format has caused many problems with the format, and consequently there are 'clean-up' projects; The MMDB uses ASN.1 (and an XML conversion of this format). The wwPDB members RCSB PDB, MSD-EBI, and PDBj are working together to make the data uniform across the archive. Some believe this to be desirable; others argue that, without a universal repository of information (i.e., a common dictionary), it is not possible to draw comparisons. Each structure published in PDB receives a four-character alphanumeric identifier, its PDB ID. This should not be used as an identifier for biomolecules, since often several structures for the same molecule (in different environments or conformations) are contained in PDB with different PDB IDs. If a biologist submits structure data for a protein or nucleic acid, wwPDB staff reviews and annotates the entry. The data are then automatically checked for plausibility. The source code for this validation software has been released for free. The main data base accepts only experimentally derived structures, and not theoretically predicted ones (see protein structure prediction). Various funding agencies and scientific journals now require scientists to submit their structure data to PDB. Viewing the dataThe structural data can be used to visualize the biomolecules with appropriate software, such as VMD, RasMol, PyMOL, Jmol, MDL Chime, QuteMol, web browser VRML plugin or any web-based software designed to visualize and analyse the protein structures such as STING. A recent desktop software addition is Sirius. The RCSB PDB website also contains resources for education, structural genomics, and related software. ReferencesPrinted
Online
Other external links
Links to enzyme database data
Molecular graphic visualisation tools
The Protein Data Bank (PDB) is a repository for 3-D structural data of proteins and nucleic acids. These data, typically obtained by X-ray crystallography or NMR spectroscopy, are submitted by biologists and biochemists from around the world, are released into the public domain, and can be accessed for free. HistoryFounded in 1971 by Drs. Edgar Meyer and Walter Hamilton Brookhaven National Laboratory, management of the Protein Data Bank was transferred in 1998 to members of the Research Collaboratory for Structural Bioinformatics (RCSB). The Worldwide Protein Data Bank (wwPDB) consists of organizations that act as deposition, data processing and distribution centers for PDB data. The founding members are RCSB PDB (USA), MSD-EBI (Europe) and PDBj (Japan). The BMRB (USA) group joined the wwPDB in 2006. The mission of the wwPDB is to maintain a single Protein Data Bank Archive of macromolecular structural data that is freely and publicly available to the global community. The PDB is a key resource in structural biology and is critical to more recent work in structural genomics. Countless derived databases and projects have been developed to integrate and classify the PDB in terms of protein structure, protein function and protein evolution. GrowthWhen the PDB was originally founded it contained just 7 protein structures. Since then it has undergone an approximate exponential growth in the number of structures, which does not show any sign of falling off. The growth rate of the PDB has been the subject of fairly extensive analysis. ContentsAs of 26 September, 2006, the database contained 39,051 released atomic coordinate entries (or "structures"), 35,767 of that proteins, the rest being nucleic acids, nucleic acid-protein complexes, and a few other molecules. About 5,000 new structures are released each year. Data are stored in the mmCIF format specifically developed for the purpose. Note that the database stores information about the exact location of all atoms in a large biomolecule (although, usually without the hydrogen atoms, as their positions are more of a statistical estimate); if one is only interested in sequence data, i.e. the list of amino acids making up a particular protein or the list of nucleotides making up a particular nucleic acid, the much larger databases from Swiss-Prot and the International Nucleotide Sequence Database Collaboration should be used. StatisticsAs of 11 September, 2007, the "PDB Holdings List" at RCSB reported the following statistics:
Note that theoretical models are no longer accepted in the PDB. 22461 structures in the PDB have a structure factor file. 3138 structures in the PDB have an NMR restraint file. The current breakdown of holdings is updated weekly. File formatThrough the years the PDB file format has undergone many, many changes and revisions. Its original format was dictated by the width of computer punch cards.
This legacy format has caused many problems with the format, and consequently there are 'clean-up' projects; The MMDB uses ASN.1 (and an XML conversion of this format). The wwPDB members RCSB PDB, MSD-EBI, and PDBj are working together to make the data uniform across the archive. Some believe this to be desirable; others argue that, without a universal repository of information (i.e., a common dictionary), it is not possible to draw comparisons. Each structure published in PDB receives a four-character alphanumeric identifier, its PDB ID. This should not be used as an identifier for biomolecules, since often several structures for the same molecule (in different environments or conformations) are contained in PDB with different PDB IDs. If a biologist submits structure data for a protein or nucleic acid, wwPDB staff reviews and annotates the entry. The data are then automatically checked for plausibility. The source code for this validation software has been released for free. The main data base accepts only experimentally derived structures, and not theoretically predicted ones (see protein structure prediction). Various funding agencies and scientific journals now require scientists to submit their structure data to PDB. Viewing the dataThe structural data can be used to visualize the biomolecules with appropriate software, such as VMD, RasMol, PyMOL, Jmol, MDL Chime, QuteMol, web browser VRML plugin or any web-based software designed to visualize and analyse the protein structures such as STING. A recent desktop software addition is Sirius. The RCSB PDB website also contains resources for education, structural genomics, and related software. ReferencesPrinted
Online
Other external links
Links to enzyme database data
Molecular graphic visualisation tools
The Protein Data Bank (PDB) is a repository for 3-D structural data of proteins and nucleic acids. These data, typically obtained by X-ray crystallography or NMR spectroscopy, are submitted by biologists and biochemists from around the world, are released into the public domain, and can be accessed for free. HistoryFounded in 1971 by Drs. Edgar Meyer and Walter Hamilton Brookhaven National Laboratory, management of the Protein Data Bank was transferred in 1998 to members of the Research Collaboratory for Structural Bioinformatics (RCSB). The Worldwide Protein Data Bank (wwPDB) consists of organizations that act as deposition, data processing and distribution centers for PDB data. The founding members are RCSB PDB (USA), MSD-EBI (Europe) and PDBj (Japan). The BMRB (USA) group joined the wwPDB in 2006. The mission of the wwPDB is to maintain a single Protein Data Bank Archive of macromolecular structural data that is freely and publicly available to the global community. The PDB is a key resource in structural biology and is critical to more recent work in structural genomics. Countless derived databases and projects have been developed to integrate and classify the PDB in terms of protein structure, protein function and protein evolution. GrowthWhen the PDB was originally founded it contained just 7 protein structures. Since then it has undergone an approximate exponential growth in the number of structures, which does not show any sign of falling off. The growth rate of the PDB has been the subject of fairly extensive analysis. ContentsAs of 26 September, 2006, the database contained 39,051 released atomic coordinate entries (or "structures"), 35,767 of that proteins, the rest being nucleic acids, nucleic acid-protein complexes, and a few other molecules. About 5,000 new structures are released each year. Data are stored in the mmCIF format specifically developed for the purpose. Note that the database stores information about the exact location of all atoms in a large biomolecule (although, usually without the hydrogen atoms, as their positions are more of a statistical estimate); if one is only interested in sequence data, i.e. the list of amino acids making up a particular protein or the list of nucleotides making up a particular nucleic acid, the much larger databases from Swiss-Prot and the International Nucleotide Sequence Database Collaboration should be used. StatisticsAs of 11 September, 2007, the "PDB Holdings List" at RCSB reported the following statistics:
Note that theoretical models are no longer accepted in the PDB. 22461 structures in the PDB have a structure factor file. 3138 structures in the PDB have an NMR restraint file. The current breakdown of holdings is updated weekly. File formatThrough the years the PDB file format has undergone many, many changes and revisions. Its original format was dictated by the width of computer punch cards.
This legacy format has caused many problems with the format, and consequently there are 'clean-up' projects; The MMDB uses ASN.1 (and an XML conversion of this format). The wwPDB members RCSB PDB, MSD-EBI, and PDBj are working together to make the data uniform across the archive. Some believe this to be desirable; others argue that, without a universal repository of information (i.e., a common dictionary), it is not possible to draw comparisons. Each structure published in PDB receives a four-character alphanumeric identifier, its PDB ID. This should not be used as an identifier for biomolecules, since often several structures for the same molecule (in different environments or conformations) are contained in PDB with different PDB IDs. If a biologist submits structure data for a protein or nucleic acid, wwPDB staff reviews and annotates the entry. The data are then automatically checked for plausibility. The source code for this validation software has been released for free. The main data base accepts only experimentally derived structures, and not theoretically predicted ones (see protein structure prediction). Various funding agencies and scientific journals now require scientists to submit their structure data to PDB. Viewing the dataThe structural data can be used to visualize the biomolecules with appropriate software, such as VMD, RasMol, PyMOL, Jmol, MDL Chime, QuteMol, web browser VRML plugin or any web-based software designed to visualize and analyse the protein structures such as STING. A recent desktop software addition is Sirius. The RCSB PDB website also contains resources for education, structural genomics, and related software. ReferencesPrinted
Online
Other external links
Links to enzyme database data
Molecular graphic visualisation tools
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| Identifiers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Symbol(s) | AChE; ARAChE; N-AChE; YT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| External IDs | OMIM: 100740 MGI: 87876 Homologene: 543 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| RNA expression pattern | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Image:PBB GE ACHE 205377 s at tn.png | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Human | Mouse | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entrez | 43 | 11423 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ensembl | ENSG00000087085 | ENSMUSG00000023328 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Uniprot | P22303 | Q543Z1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refseq | NM_000665 (mRNA) NP_000656 (protein) | NM_009599 (mRNA) NP_033729 (protein) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Location | Chr 7: 100.33 - 100.33 Mb | Chr 5: 137.52 - 137.52 Mb | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pubmed search | [13] | [14] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Acetylcholinesterase (Yt blood group), also known as AChE, is a human enzyme coded for by a gene.
Acetylcholinesterase hydrolyzes the neurotransmitter acetylcholine at neuromuscular junctions and brain cholinergic synapses, and thus terminates signal transmission. It is also found on the red blood cell membranes, where it constitutes the Yt blood group antigen. Acetylcholinesterase exists in multiple molecular forms, which possess similar catalytic properties, but differ in their oligomeric assembly and mode of cell attachment to the cell surface. It is encoded by the single AChE gene; and the structural diversity in the gene products arises from alternative mRNA splicing and post-translational associations of catalytic and structural subunits. The major form of acetylcholinesterase found in brain, muscle, and other tissues is the hydrophilic species, which forms disulfide-linked oligomers with collagenous, or lipid-containing structural subunits. The other, alternatively-spliced form, expressed primarily in the erythroid tissues, differs at the C-terminal end, and contains a cleavable hydrophobic peptide with a GPI-anchor site. It associates with the membranes through the phosphoinositide (PI) moieties added post-translationally.[1]
Acetylcholinesterase is the target of nerve gases. The agents blocks the function of acetylcholinesterase and thus causes interminable muscle contraction throughout the body.
See also
References
Further reading
- Silman I, Futerman AH (1988). "Modes of attachment of acetylcholinesterase to the surface membrane.". Eur. J. Biochem. 170 (1-2): 11-22. PMID 3319614.
- Soreq H, Seidman S (2001). "Acetylcholinesterase--new roles for an old actor.". Nat. Rev. Neurosci. 2 (4): 294-302. doi:10.1038/35067589. PMID 11283752.
- Shen T, Tai K, Henchman RH, McCammon JA (2003). "Molecular dynamics of acetylcholinesterase.". Acc. Chem. Res. 35 (6): 332-40. PMID 12069617.
- Pakaski M, Kasa P (2003). "Role of acetylcholinesterase inhibitors in the metabolism of amyloid precursor protein.". Current drug targets. CNS and neurological disorders 2 (3): 163-71. PMID 12769797.
- Meshorer E, Soreq H (2006). "Virtues and woes of AChE alternative splicing in stress-related neuropathologies.". Trends Neurosci. 29 (4): 216-24. doi:10.1016/j.tins.2006.02.005. PMID 16516310.
- Ehrlich G, Viegas-Pequignot E, Ginzberg D, et al. (1992). "Mapping the human acetylcholinesterase gene to chromosome 7q22 by fluorescent in situ hybridization coupled with selective PCR amplification from a somatic hybrid cell panel and chromosome-sorted DNA libraries.". Genomics 13 (4): 1192-7. PMID 1380483.
- Spring FA, Gardner B, Anstee DJ (1992). "Evidence that the antigens of the Yt blood group system are located on human erythrocyte acetylcholinesterase.". Blood 80 (8): 2136-41. PMID 1391965.
- Shafferman A, Kronman C, Flashner Y, et al. (1992). "Mutagenesis of human acetylcholinesterase. Identification of residues involved in catalytic activity and in polypeptide folding.". J. Biol. Chem. 267 (25): 17640-8. PMID 1517212.
- Getman DK, Eubanks JH, Camp S, et al. (1992). "The human gene encoding acetylcholinesterase is located on the long arm of chromosome 7.". Am. J. Hum. Genet. 51 (1): 170-7. PMID 1609795.
- Li Y, Camp S, Rachinsky TL, et al. (1992). "Gene structure of mammalian acetylcholinesterase. Alternative exons dictate tissue-specific expression.". J. Biol. Chem. 266 (34): 23083-90. PMID 1744105.
- Velan B, Grosfeld H, Kronman C, et al. (1992). "The effect of elimination of intersubunit disulfide bonds on the activity, assembly, and secretion of recombinant human acetylcholinesterase. Expression of acetylcholinesterase Cys-580----Ala mutant.". J. Biol. Chem. 266 (35): 23977-84. PMID 1748670.
- Soreq H, Ben-Aziz R, Prody CA, et al. (1991). "Molecular cloning and construction of the coding region for human acetylcholinesterase reveals a G + C-rich attenuating structure.". Proc. Natl. Acad. Sci. U.S.A. 87 (24): 9688-92. PMID 2263619.
- Chhajlani V, Derr D, Earles B, et al. (1989). "Purification and partial amino acid sequence analysis of human erythrocyte acetylcholinesterase.". FEBS Lett. 247 (2): 279-82. PMID 2714437.
- Lapidot-Lifson Y, Prody CA, Ginzberg D, et al. (1989). "Coamplification of human acetylcholinesterase and butyrylcholinesterase genes in blood cells: correlation with various leukemias and abnormal megakaryocytopoiesis.". Proc. Natl. Acad. Sci. U.S.A. 86 (12): 4715-9. PMID 2734315.
- Bazelyansky M, Robey E, Kirsch JF (1986). "Fractional diffusion-limited component of reactions catalyzed by acetylcholinesterase.". Biochemistry 25 (1): 125-30. PMID 3954986.
- Gaston SM, Marchase RB, Jakoi ER (1982). "Brain ligatin: a membrane lectin that binds acetylcholinesterase.". J. Cell. Biochem. 18 (4): 447-59. doi:10.1002/jcb.1982.240180406. PMID 7085778.
- Ordentlich A, Barak D, Kronman C, et al. (1995). "Contribution of aromatic moieties of tyrosine 133 and of the anionic subsite tryptophan 86 to catalytic efficiency and allosteric modulation of acetylcholinesterase.". J. Biol. Chem. 270 (5): 2082-91. PMID 7836436.
- Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides.". Gene 138 (1-2): 171-4. PMID 8125298.
- Ben Aziz-Aloya R, Sternfeld M, Soreq H (1994). "Promoter elements and alternative splicing in the human ACHE gene.". Prog. Brain Res. 98: 147-53. PMID 8248502.
External links
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
