Source:http://linkedlifedata.com/resource/pubmed/id/16703469
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2006-9-29
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pubmed:abstractText |
The interaction of human visinin-like protein 1 (VILIP1) and visinin-like protein 3 (VILIP3) with divalent cations (Mg2+, Ca2+, Sr2+ and Ba2+) was explored using circular dichroism and fluorescence measurement. These results showed that the four cations each induced a different subtle change in the conformation of VILIPs. Moreover, VILIP1 and VILIP3 bound with Ca2+ or Mg2+ in a cooperative manner. Studies on the truncated mutants showed that the intact EF-3 and EF-4 were essential for the binding of VILIP1 with Ca2+ and Mg2+. Pull-down assay revealed that Ca2+ and Mg2+ enhanced the intermolecular interaction of VILIPs, and led to the formation of homo- and hetero-oligomer of VILIPs. Together with previous findings that Ca2+-dependent localization of VILIPs may be involved in the regulation of distinct cascades and deprivation of Ca2+-binding capacity of VILIPs did not completely eliminate their activity, it is likely to reflect that Mg2+-bound VILIPs may play a role in regulating the biological function of VILIPs in response to a concentration fluctuation of Ca2+ in cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1572-3887
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
25
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
250-6
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pubmed:dateRevised |
2007-7-18
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pubmed:meshHeading | |
pubmed:year |
2006
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pubmed:articleTitle |
Functional contribution of Ca2+ and Mg2+ to the intermolecular interaction of visinin-like proteins.
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pubmed:affiliation |
Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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