1CXZ

CRYSTAL STRUCTURE OF HUMAN RHOA COMPLEXED WITH THE EFFECTOR DOMAIN OF THE PROTEIN KINASE PKN/PRK1

Summary for 1CXZ

• Entry DOI: 10.2210/pdb1cxz/pdb
• Related: 1A2B
• Descriptor: PROTEIN (HIS-TAGGED TRANSFORMING PROTEIN RHOA(0-181)), PROTEIN (PKN), MAGNESIUM ION, ... (5 entities in total)
• Functional Keywords: protein-protein complex, antiparallel coiled-coil, signaling protein
• Biological source: Homo sapiens (human); More
• Cellular location: Cell membrane; Lipid-anchor; Cytoplasmic side: P61586; Cytoplasm : Q16512
• Total number of polymer chains: 2
• Total formula weight: 30971.42

Authors

Maesaki, R.,Ihara, K.,Shimizu, T.,Kuroda, S.,Kaibuchi, K.,Hakoshima, T. (deposition date: 1999-08-31, release date: 1999-10-08, Last modification date: 2024-05-22)

Primary citation

Maesaki, R.,Ihara, K.,Shimizu, T.,Kuroda, S.,Kaibuchi, K.,Hakoshima, T.
The structural basis of Rho effector recognition revealed by the crystal structure of human RhoA complexed with the effector domain of PKN/PRK1.
Mol.Cell, 4:793-803, 1999

PubMed Abstract: The small G protein Rho has emerged as a key regulator of cellular events involving cytoskeletal reorganization. Here we report the 2.2 A crystal structure of RhoA bound to an effector domain of protein kinase PKN/PRK1. The structure reveals the antiparallel coiled-coil finger (ACC finger) fold of the effector domain that binds to the Rho specificity-determining regions containing switch I, beta strands B2 and B3, and the C-terminal alpha helix A5, predominantly by specific hydrogen bonds. The ACC finger fold is distinct from those for other small G proteins and provides evidence for the diverse ways of effector recognition. Sequence analysis based on the structure suggests that the ACC finger fold is widespread in Rho effector proteins.

PubMed: 10619026
DOI: 10.1016/S1097-2765(00)80389-5

Experimental method

X-RAY DIFFRACTION (2.2 Å)