Figure 15.21. EF Hand.
Figure 15.21. EF Hand.

Figure 15.21EF Hand

Figure 15.21. EF Hand. Formed by a helix-loop-helix unit, an EF hand is a binding site for calcium in many calcium sensing proteins. Here, the E helix is yellow, the F helix is blue, and calcium is represented by the green sphere.

From: Section 15.3, Calcium Ion Is a Ubiquitous Cytosolic Messenger

Cover of Biochemistry
Biochemistry. 5th edition.
Berg JM, Tymoczko JL, Stryer L.
New York: W H Freeman; 2002.
Copyright © 2002, W. H. Freeman and Company.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.