1H54

Maltose phosphorylase from Lactobacillus brevis

PDB DOI: https://doi.org/10.2210/pdb1H54/pdb

Classification: HYDROLASE
Organism(s): Levilactobacillus brevis
Mutation(s): No

Deposited: 2001-05-18 Released: 2001-09-05
Deposition Author(s): Van Tilbeurgh, H., Egloff, M.-P.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.15 Å
R-Value Free: 0.225
R-Value Work: 0.186
R-Value Observed: 0.186

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

Crystal Structure of Maltose Phosphorylase from Lactobacillus Brevis: Unexpected Evolutionary Relationship with Glucoamylases.

Egloff, M.-P., Uppenberg, J., Haalck, L., Van Tilbeurgh, H.

(2001) Structure 9: 689

PubMed: 11587643 Search on PubMed
DOI: https://doi.org/10.1016/s0969-2126(01)00626-8

PubMed Abstract:
Maltose phosphorylase (MP) is a dimeric enzyme that catalyzes the conversion of maltose and inorganic phosphate into beta-D-glucose-1-phosphate and glucose without requiring any cofactors, such as pyridoxal phosphate. The enzyme is part of operons that are involved in maltose/malto-oligosaccharide metabolism. Maltose phosphorylases have been classified in family 65 of the glycoside hydrolases. No structure is available for any member of this family.

Organizational Affiliation

Architecture et Fonction des Macromolécules Biologiques, Centre National de la Recherche Scientifique, Unite Mixte de Recherche 6098, Université d'Aix-Marseille, I et II, Case 925, 13288, Marseille, France.

Macromolecule Content

Total Structure Weight: 171.83 kDa
Atom Count: 13,699
Modelled Residue Count: 1,507
Deposited Residue Count: 1,508
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MALTOSE PHOSPHORYLASE	A, B	754	Levilactobacillus brevis	Mutation(s): 0 EC: 2.4.1.8
UniProt
Find proteins for Q7SIE1 (Levilactobacillus brevis) Explore Q7SIE1 Go to UniProtKB: Q7SIE1
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q7SIE1
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
PO4 Query on PO4 Download Ideal Coordinates CCD File SDF format, chain D [auth B] MOL2 format, chain D [auth B]	D [auth B]	PHOSPHATE ION O₄ P NBIIXXVUZAFLBC-UHFFFAOYSA-K		Interactions Focus chain D [auth B]
K Query on K Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain E [auth B] MOL2 format, chain C [auth A] MOL2 format, chain E [auth B]	C [auth A], E [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain E [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.15 Å
R-Value Free: 0.225
R-Value Work: 0.186
R-Value Observed: 0.186
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.75	α = 90
b = 102.5	β = 111.3
c = 114	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Released Date: 2001-09-05

Deposition Author(s):

Van Tilbeurgh, H.

Egloff, M.-P.

Revision History (Full details and data files)

Version 1.0: 2001-09-05
Type: Initial release
Version 1.1: 2012-06-13
Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Other, Refinement description, Version format compliance