6LGQ

The crystal complex structure of histidine kinase and response regulator

• PDB DOI: https://doi.org/10.2210/pdb6LGQ/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2019-12-05 Released: 2020-12-09 
• Deposition Author(s): Ming, Q.X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.232 
• R-Value Work: 0.183 
• R-Value Observed: 0.188 

Starting Model: experimental

Literature

The crystal complex structure of histidine kinase and response regulator

Ming, Q.X.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: SAXS

Macromolecule Content

• Total Structure Weight: 54.53 kDa 
• Atom Count: 3,449 
• Modelled Residue Count: 441 
• Deposited Residue Count: 492 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Histidine kinase KdpD	A [auth C]	251	Escherichia coli	Mutation(s): 0  Gene Names:  kdbD, kdpD, AKG99_04800, AML35_19290, B9M99_01250, BK383_18195, C5P44_02760, CIJ94_01275, D2188_15845, D9H70_02790, D9J60_00745, DTL90_04085, DU321_01600, EC382_20775, EIA21_11550, EO241_08335, EXX06_11290, EXX23_12490, EXX53_15910, EXX55_10750, EXX87_15770, FNJ83_05465, HMPREF3040_04620, NCTC9119_03628, SAMEA3472056_00110 EC: 2.7.13.3
UniProt
Find proteins for P21865 (Escherichia coli (strain K12)) Explore P21865  Go to UniProtKB:  P21865

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA-binding response regulator	B [auth D]	241	Escherichia coli	Mutation(s): 0  Gene Names:  kdpE_1, kdpE, A8M42_04350, ACU57_12825, AM464_20745, AUQ13_21380, B9T59_04520, BANRA_01744, BANRA_03868, BEN53_05945, BK248_02745, BK334_19180, BON75_19570, BON86_22395, BvCmsHHP001_00776, BvCmsHHP019_01442, BvCmsKSP026_01795, BvCmsSINP011_01149, BW690_07930, C4J69_07925, C4M78_23895, C5N07_14640, C6B13_12830, C9200_17795, CA593_25685, CDL37_26920, CI694_20635, CQP61_19525, CSB64_10560, D2183_02080, D2185_15895, D3821_21875, D3O91_17430, D9D20_12870, DAH34_18930, DB359_02985, DBQ99_18030, DM129_15030, DNQ41_07435, DNX30_24225, DTM25_00915, DWB25_17365, E2119_26455, E2134_18575, EAI52_22440, EC3234A_8c00210, EC3426_01519, ECONIH1_03925, ECTO6_03354, EIA08_00640, EJH97_16770, EL75_3094, EL79_3187, EL80_5454, ELT20_10810, ELT49_12200, ELT58_16530, EPS71_20965, EPS91_08680, EPT01_08635, ExPECSC022_01393, ExPECSC038_02992, EXX71_13740, EYD11_16000, FTV90_11805, FV293_12605, FV295_01400, MS6198_07470, NCTC10766_06081, NCTC13462_01629, NCTC13846_03346, NCTC7922_06598, NCTC7927_03942, NCTC7928_05334, NCTC8450_01686, NCTC9007_02376, NCTC9045_04052, NCTC9062_04757, NCTC9117_04356, NCTC9706_00828, NCTC9777_03550, RK56_025185, SAMEA3472033_02545, SAMEA3472047_02080, SAMEA3472080_00274, SAMEA3484427_03082, SAMEA3484429_03300, SAMEA3752559_01043, SAMEA3753300_04142, SK85_00691
UniProt
Find proteins for P21866 (Escherichia coli (strain K12)) Explore P21866  Go to UniProtKB:  P21866

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.232 
• R-Value Work: 0.183 
• R-Value Observed: 0.188 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 100.799	α = 90
b = 63.068	β = 102.528
c = 85.278	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
HKL-2000	data reduction
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-12-09 
Deposition Author(s): Ming, Q.X.

Revision History  

• Version 1.0: 2020-12-09
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Refinement description