3PUV

Crystal Structure of an outward-facing MBP-Maltose transporter complex bound to ADP-VO4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.224 

Starting Model: experimental
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Literature

Snapshots of the maltose transporter during ATP hydrolysis.

Oldham, M.L.Chen, J.

(2011) Proc Natl Acad Sci U S A 108: 15152-15156

  • DOI: https://doi.org/10.1073/pnas.1108858108
  • Primary Citation of Related Structures:  
    3PUV, 3PUW, 3PUX, 3RLF

  • PubMed Abstract: 

    ATP-binding cassette transporters are powered by ATP, but the mechanism by which these transporters hydrolyze ATP is unclear. In this study, four crystal structures of the full-length wild-type maltose transporter, stabilized by adenosine 5'-(β,γ-imido)triphosphate or ADP in conjunction with phosphate analogs BeF(3)(-), VO(4)(3-), or AIF(4)(-), were determined to 2.2- to 2.4-Å resolution. These structures led to the assignment of two enzymatic states during ATP hydrolysis and demonstrate specific functional roles of highly conserved residues in the nucleotide-binding domain, suggesting that ATP-binding cassette transporters catalyze ATP hydrolysis via a general base mechanism.


  • Organizational Affiliation

    Department of Biological Sciences, Purdue University, Howard Hughes Medical Institute, 240 Martin Jischke Boulevard, West Lafayette, IN 47907, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Maltose-binding periplasmic proteinA [auth E]378Escherichia coli K-12Mutation(s): 0 
Gene Names: b4034ECDH10B_4223JW3994malE
Membrane Entity: Yes 
UniProt
Find proteins for P0AEX9 (Escherichia coli (strain K12))
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Go to UniProtKB:  P0AEX9
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UniProt GroupP0AEX9
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Maltose transport system permease protein malFB [auth F]514Escherichia coli K-12Mutation(s): 0 
Gene Names: b4033ECDH10B_4222JW3993malF
Membrane Entity: Yes 
UniProt
Find proteins for P02916 (Escherichia coli (strain K12))
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UniProt GroupP02916
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Maltose transport system permease protein malGC [auth G]296Escherichia coli K-12Mutation(s): 0 
Gene Names: b4032ECDH10B_4221JW3992malG
Membrane Entity: Yes 
UniProt
Find proteins for P68183 (Escherichia coli (strain K12))
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UniProt GroupP68183
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Maltose/maltodextrin import ATP-binding protein MalKD [auth A],
E [auth B]
381Escherichia coli K-12Mutation(s): 0 
Gene Names: b4035ECDH10B_4224JW3995malK
EC: 3.6.3.19 (PDB Primary Data), 7.5.2.1 (UniProt)
Membrane Entity: Yes 
UniProt
Find proteins for P68187 (Escherichia coli (strain K12))
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UniProt GroupP68187
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranoseF [auth C]2N/A
Glycosylation Resources
GlyTouCan:  G07411ON
GlyCosmos:  G07411ON
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PGV
Query on PGV

Download Ideal Coordinates CCD File 
G [auth F]
H [auth F]
I [auth F]
J [auth F]
L [auth G]
G [auth F],
H [auth F],
I [auth F],
J [auth F],
L [auth G],
M [auth G],
N [auth G],
O [auth G],
P [auth G],
Q [auth G]
(1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE
C40 H77 O10 P
ADYWCMPUNIVOEA-GPJPVTGXSA-N
UMQ
Query on UMQ

Download Ideal Coordinates CCD File 
K [auth F]UNDECYL-MALTOSIDE
C23 H44 O11
UYEMNFYVTFDKRG-ZNGNCRBCSA-N
ADP
Query on ADP

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S [auth A],
V [auth B]
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
VO4
Query on VO4

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T [auth A],
W [auth B]
VANADATE ION
O4 V
LSGOVYNHVSXFFJ-UHFFFAOYSA-N
MG
Query on MG

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R [auth A],
U [auth B]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 5
IDChains NameType/Class2D Diagram3D Interactions
PRD_900001
Query on PRD_900001
F [auth C]alpha-maltoseOligosaccharide / Nutrient
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.224 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.786α = 85.58
b = 97.125β = 78.71
c = 112.791γ = 72.69
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-10
    Type: Initial release
  • Version 1.1: 2011-09-28
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 2.1: 2023-09-06
    Changes: Data collection, Database references, Refinement description, Structure summary