Crystallographic characterization of the radixin FERM domain bound to the C-terminal region of the human Na+/H+-exchanger regulatory factor (NHERF).
Radixin is a member of the ERM proteins, which cross-link plasma membranes and actin filaments. The N-terminal FERM domains of ERM proteins interact with Na(+)/H(+)-exchanger regulatory factors (NHERFs), which are PDZ-containing adaptor proteins, to modulate the ion-channel activity. Here, crystals of complexes between the radixin FERM domain and the C-terminal regions of NHERF and NHERF2 have been obtained. The crystals of the FERM-NHERF complex were found to belong to space group P2(1)2(1)2(1), with unit-cell parameters a = 69.38 (2), b = 146.27 (4), c = 177.76 (7) A. The crystal contains four complexes in the asymmetric unit. An intensity data set was collected to a resolution of 2.50 A.
Terawaki
Shin-ichi
S
Structural Biology Laboratory, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan.
Maesaki
Ryoko
R
Okada
Kengo
K
Hakoshima
Toshio
T
D000595:Amino Acid Sequence; D000818:Animals; D001798:Blood Proteins / Q000737:chemistry* / Q000378:metabolism; D003460:Crystallization; D018360:Crystallography, X-Ray; D003598:Cytoskeletal Proteins / Q000737:chemistry* / Q000378:metabolism; D006801:Humans; D008565:Membrane Proteins / Q000737:chemistry* / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D010750:Phosphoproteins / Q000737:chemistry* / Q000378:metabolism; D017434:Protein Structure, Tertiary; D011993:Recombinant Fusion Proteins / Q000737:chemistry / Q000378:metabolism; D017923:Sodium-Hydrogen Exchangers
D001798:Blood Proteins; D003598:Cytoskeletal Proteins; D008565:Membrane Proteins; D010750:Phosphoproteins; D011993:Recombinant Fusion Proteins; D017923:Sodium-Hydrogen Exchangers; C093376:sodium-hydrogen exchanger regulatory factor; C071776:radixin