3B6R

Crystal structure of Human Brain-type Creatine Kinase

PDB DOI: https://doi.org/10.2210/pdb3B6R/pdb

Classification: TRANSFERASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2007-10-29 Released: 2008-11-04
Deposition Author(s): Bong, S.M., Moon, J.H., Hwang, K.Y.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free:
0.231 (Depositor), 0.220 (DCC)
R-Value Work:
0.192 (Depositor), 0.190 (DCC)
R-Value Observed:
0.208 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.3 of the entry. See complete history.

Literature

Structural studies of human brain-type creatine kinase complexed with the ADP-Mg2+-NO3- -creatine transition-state analogue complex

Bong, S.M., Moon, J.H., Nam, K.H., Lee, K.S., Chi, Y.M., Hwang, K.Y.

(2008) FEBS Lett 582: 3959-3965

PubMed: 18977227 Search on PubMed
DOI: https://doi.org/10.1016/j.febslet.2008.10.039
Primary Citation of Related Structures:
3B6R, 3DRB, 3DRE

PubMed Abstract:
Creatine kinase is a member of the phosphagen kinase family, which catalyzes the reversible phosphoryl transfer reaction that occurs between ATP and creatine to produce ADP and phosphocreatine. Here, three structural aspects of human-brain-type-creatine-kinase (hBB-CK) were identified by X-ray crystallography: the ligand-free-form at 2.2A; the ADP-Mg2+, nitrate, and creatine complex (transition-state-analogue complex; TSAC); and the ADP-Mg2+-complex at 2.0A. The structures of ligand-bound hBB-CK revealed two different monomeric states in a single homodimer. One monomer is a closed form, either bound to TSAC or the ADP-Mg2+-complex, and the second monomer is an unliganded open form. These structural studies provide a detailed mechanism indicating that the binding of ADP-Mg2+ alone may trigger conformational changes in hBB-CK that were not observed with muscle-type-CK.

Organizational Affiliation

Division of Biotechnology, College of Life Sciences, Korea University, Seoul 136-713, Republic of Korea.

Macromolecule Content

Total Structure Weight: 86.16 kDa
Atom Count: 6,553
Modelled Residue Count: 752
Deposited Residue Count: 762
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Creatine kinase B-type	A, B	381	Homo sapiens	Mutation(s): 0 Gene Names: CKB EC: 2.7.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for P12277 (Homo sapiens) Explore P12277 Go to UniProtKB: P12277
PHAROS: P12277 GTEx: ENSG00000166165
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P12277
Sequence Annotations Expand
Reference Sequence LOADING

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ADP Query on ADP Download Ideal Coordinates CCD File SDF format, chain G [auth B] MOL2 format, chain G [auth B] mmCIF format, chain G [auth B]	G [auth B]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain G [auth B] Interactions & Density Focus chain G [auth B]
CRN Query on CRN Download Ideal Coordinates CCD File SDF format, chain H [auth B] MOL2 format, chain H [auth B] mmCIF format, chain H [auth B]	H [auth B]	N-[(E)-AMINO(IMINO)METHYL]-N-METHYLGLYCINE C₄ H₉ N₃ O₂ CVSVTCORWBXHQV-UHFFFAOYSA-N		Interactions Focus chain H [auth B] Interactions & Density Focus chain H [auth B]
NO3 Query on NO3 Download Ideal Coordinates CCD File SDF format, chain E [auth B] MOL2 format, chain E [auth B] mmCIF format, chain E [auth B]	E [auth B]	NITRATE ION N O₃ NHNBFGGVMKEFGY-UHFFFAOYSA-N		Interactions Focus chain E [auth B] Interactions & Density Focus chain E [auth B]
ACT Query on ACT Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain F [auth B] MOL2 format, chain C [auth A] MOL2 format, chain F [auth B] mmCIF format, chain C [auth A] mmCIF format, chain F [auth B]	C [auth A], F [auth B]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Focus chain F [auth B] Interactions & Density Focus chain C [auth A] Focus chain F [auth B]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain D [auth B] MOL2 format, chain D [auth B] mmCIF format, chain D [auth B]	D [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain D [auth B] Interactions & Density Focus chain D [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.231 (Depositor), 0.220 (DCC)
R-Value Work: 0.192 (Depositor), 0.190 (DCC)
R-Value Observed: 0.208 (Depositor)

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.817	α = 90
b = 96.817	β = 90
c = 166.229	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
PHASES	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2008-11-04

Deposition Author(s):

Bong, S.M.

Moon, J.H.

Hwang, K.Y.

Revision History (Full details and data files)

Version 1.0: 2008-11-04
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2017-10-25
Changes: Refinement description
Version 1.3: 2023-11-01
Changes: Data collection, Database references, Derived calculations, Refinement description