| pubmed-article:7834580 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:7834580 | lifeskim:mentions | umls-concept:C0026844 | lld:lifeskim |
| pubmed-article:7834580 | lifeskim:mentions | umls-concept:C0026841 | lld:lifeskim |
| pubmed-article:7834580 | lifeskim:mentions | umls-concept:C0851285 | lld:lifeskim |
| pubmed-article:7834580 | pubmed:issue | 8 | lld:pubmed |
| pubmed-article:7834580 | pubmed:dateCreated | 1995-2-28 | lld:pubmed |
| pubmed-article:7834580 | pubmed:abstractText | Vascular smooth muscle tone is regulated primarily by the sarcoplasmic free Ca2+ concentration, which determines the level of myosin phosphorylation. Stimulation of the muscle results in an increase in free [Ca2+], whereupon Ca2+ binds to calmodulin, inducing a conformational change enabling calmodulin to interact with and activate myosin light chain kinase. The active Ca2+.calmodulin.myosin light chain kinase complex catalyses the phosphorylation of serine-19 of the two 20-kDa light chains of myosin; this triggers cross-bridge cycling and the development of force. Relaxation follows restoration of free [Ca2+] to the resting level, whereupon calmodulin dissociates from myosin light chain kinase, which is thereby inactivated, and myosin is dephosphorylated by myosin light chain phosphatase and remains detached from actin. Overwhelming evidence now exists in favour of the central role of myosin phosphorylation-dephosphorylation in smooth muscle contraction-relaxation. However, considerable evidence supports the existence of additional, secondary mechanisms that can modulate the contractile state of smooth muscle either by altering the Ca2+ sensitivity of the contractile response or otherwise modulating one of the molecular events occurring downstream of the Ca2+ signal, e.g., the interaction of phosphorylated myosin heads with actin. The interplay of several regulatory elements confers on the contractile response of vascular smooth muscle the high degree of flexibility and adaptability required for the effective regulation of blood pressure. | lld:pubmed |
| pubmed-article:7834580 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:7834580 | pubmed:language | eng | lld:pubmed |
| pubmed-article:7834580 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:7834580 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:7834580 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:7834580 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:7834580 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:7834580 | pubmed:month | Aug | lld:pubmed |
| pubmed-article:7834580 | pubmed:issn | 0008-4212 | lld:pubmed |
| pubmed-article:7834580 | pubmed:author | pubmed-author:WalshM PMP | lld:pubmed |
| pubmed-article:7834580 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:7834580 | pubmed:volume | 72 | lld:pubmed |
| pubmed-article:7834580 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:7834580 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:7834580 | pubmed:pagination | 919-36 | lld:pubmed |
| pubmed-article:7834580 | pubmed:dateRevised | 2009-11-19 | lld:pubmed |
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| pubmed-article:7834580 | pubmed:meshHeading | pubmed-meshheading:7834580-... | lld:pubmed |
| pubmed-article:7834580 | pubmed:year | 1994 | lld:pubmed |
| pubmed-article:7834580 | pubmed:articleTitle | Regulation of vascular smooth muscle tone. | lld:pubmed |
| pubmed-article:7834580 | pubmed:affiliation | MRC Group in Signal Transduction, University of Calgary, AB, Canada. | lld:pubmed |
| pubmed-article:7834580 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:7834580 | pubmed:publicationType | Review | lld:pubmed |
| pubmed-article:7834580 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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