1HKX

Crystal structure of calcium/calmodulin-dependent protein kinase

PDB DOI: https://doi.org/10.2210/pdb1HKX/pdb

Classification: TRANSFERASE
Organism(s): Mus musculus
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2003-03-12 Released: 2003-06-02
Deposition Author(s): Hoelz, A., Nairn, A.C., Kuriyan, J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.65 Å
R-Value Free: 0.279
R-Value Work: 0.246
R-Value Observed: 0.246

wwPDB Validation 3D Report Full Report

This is version 1.4 of the entry. See complete history.

Literature

Crystal Structure of a Tetradecameric Assembly of the Association Domain of Ca2+/Calmodulin-Dependent Kinase II

Hoelz, A., Nairn, A.C., Kuriyan, J.

(2003) Mol Cell 11: 1241

PubMed: 12769848 Search on PubMed
DOI: https://doi.org/10.1016/s1097-2765(03)00171-0
Primary Citation of Related Structures:
1HKX

PubMed Abstract:
We report the crystal structure of the 143 residue association domain of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII). The association domain forms a hub-like assembly, composed of two rings of seven protomers each, which are stacked head to head and held together by extensive interfaces. The tetradecameric organization of the assembly was confirmed by analytical ultracentrifugation and multiangle light scattering. Individual protomers form wedge-shaped structures from which N-terminal helical segments that connect to the kinase domain extend toward the equatorial plane of the assembly, consistent with the arrangement of the kinase domains in a second outer ring. A deep and highly conserved pocket present within the association domain may serve as a docking site for proteins that interact with CaMKII.

Organizational Affiliation

The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.

Macromolecule Content

Total Structure Weight: 239.04 kDa
Atom Count: 15,690
Modelled Residue Count: 1,935
Deposited Residue Count: 2,058
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASE TYPE II ALPHA CHAIN	A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	147	Mus musculus	Mutation(s): 0 EC: 2.7.1.123 (PDB Primary Data), 2.7.11.17 (UniProt)
UniProt
Find proteins for P11798 (Mus musculus) Explore P11798 Go to UniProtKB: P11798
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P11798
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
TBR Query on TBR Download Ideal Coordinates CCD File SDF format, chain Q [auth A] MOL2 format, chain Q [auth A] mmCIF format, chain Q [auth A]	Q [auth A]	HEXATANTALUM DODECABROMIDE Br₁₂ Ta₆ YWYIQTPPCOBSGN-UHFFFAOYSA-M		Interactions Focus chain Q [auth A] Interactions & Density Focus chain Q [auth A]
DTT Query on DTT Download Ideal Coordinates CCD File SDF format, chain O [auth A] MOL2 format, chain O [auth A] mmCIF format, chain O [auth A]	O [auth A]	2,3-DIHYDROXY-1,4-DITHIOBUTANE C₄ H₁₀ O₂ S₂ VHJLVAABSRFDPM-IMJSIDKUSA-N		Interactions Focus chain O [auth A] Interactions & Density Focus chain O [auth A]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain AA [auth K] SDF format, chain BA [auth L] SDF format, chain CA [auth M] SDF format, chain DA [auth N] SDF format, chain P [auth A] SDF format, chain R [auth B] SDF format, chain S [auth C] SDF format, chain T [auth D] SDF format, chain U [auth E] SDF format, chain V [auth F] SDF format, chain W [auth G] SDF format, chain X [auth H] SDF format, chain Y [auth I] SDF format, chain Z [auth J] MOL2 format, chain AA [auth K] MOL2 format, chain BA [auth L] MOL2 format, chain CA [auth M] MOL2 format, chain DA [auth N] MOL2 format, chain P [auth A] MOL2 format, chain R [auth B] MOL2 format, chain S [auth C] MOL2 format, chain T [auth D] MOL2 format, chain U [auth E] MOL2 format, chain V [auth F] MOL2 format, chain W [auth G] MOL2 format, chain X [auth H] MOL2 format, chain Y [auth I] MOL2 format, chain Z [auth J] mmCIF format, chain AA [auth K] mmCIF format, chain BA [auth L] mmCIF format, chain CA [auth M] mmCIF format, chain DA [auth N] mmCIF format, chain P [auth A] mmCIF format, chain R [auth B] mmCIF format, chain S [auth C] mmCIF format, chain T [auth D] mmCIF format, chain U [auth E] mmCIF format, chain V [auth F] mmCIF format, chain W [auth G] mmCIF format, chain X [auth H] mmCIF format, chain Y [auth I] mmCIF format, chain Z [auth J]	AA [auth K] BA [auth L] CA [auth M] DA [auth N] P [auth A] AA [auth K], BA [auth L], CA [auth M], DA [auth N], P [auth A], R [auth B], S [auth C], T [auth D], U [auth E], V [auth F], W [auth G], X [auth H], Y [auth I], Z [auth J]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain AA [auth K] Focus chain BA [auth L] Focus chain CA [auth M] Focus chain DA [auth N] Focus chain P [auth A] Focus chain R [auth B] Focus chain S [auth C] Focus chain T [auth D] Focus chain U [auth E] Focus chain V [auth F] Focus chain W [auth G] Focus chain X [auth H] Focus chain Y [auth I] Focus chain Z [auth J] Interactions & Density Focus chain AA [auth K] Focus chain BA [auth L] Focus chain CA [auth M] Focus chain DA [auth N] Focus chain P [auth A] Focus chain R [auth B] Focus chain S [auth C] Focus chain T [auth D] Focus chain U [auth E] Focus chain V [auth F] Focus chain W [auth G] Focus chain X [auth H] Focus chain Y [auth I] Focus chain Z [auth J]