The domain within your query sequence starts at position 1291 and ends at position 1319; the E-value for the EFh domain shown below is 6e-5.



EF-hand, calcium binding motif
SMART accession number:SM00054
Description: EF-hands are calcium-binding motifs that occur at least in pairs. Links between disease states and genes encoding EF-hands, particularly the S100 subclass, are emerging. Each motif consists of a 12 residue loop flanked on either side by a 12 residue alpha-helix. EF-hands undergo a conformational change unpon binding calcium ions.
Interpro abstract (IPR002048):

Many calcium-binding proteins belong to the same evolutionary family and share a type of calcium-binding domain known as the EF-hand. This type of domain consists of a twelve residue loop flanked on both sides by a twelve residue alpha-helical domain. In an EF-hand loop the calcium ion is coordinated in a pentagonal bipyramidal configuration. The six residues involved in the binding are in positions 1, 3, 5, 7, 9 and 12; these residues are denoted by X, Y, Z, -Y, -X and -Z. The invariant Glu or Asp at position 12 provides two oxygens for liganding Ca (bidentate ligand). Ca2 binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers [ (PUBMED:9228939) (PUBMED:8848832) (PUBMED:7553064) (PUBMED:7656053) (PUBMED:10591109) ].

GO function:calcium ion binding (GO:0005509)
Family alignment:
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There are 343947 EFh domains in 122495 proteins in SMART's nrdb database.

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