4BWC | pdb_00004bwc

X-ray structure of a phospholiapse B like protein 1 from bovine kidneys


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 
    0.231 (Depositor), 0.230 (DCC) 
  • R-Value Work: 
    0.188 (Depositor), 0.190 (DCC) 
  • R-Value Observed: 
    0.190 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted NAGClick on this verticalbar to view detailsBest fitted P4GClick on this verticalbar to view details

This is version 2.1 of the entry. See complete history


Literature

Is the Bovine Lysosomal Phospholipase B-Like Protein an Amidase?

Repo, H.Kuokkanen, E.Oksanen, E.Goldman, A.Heikinheimo, P.

(2014) Proteins 82: 300

  • DOI: https://doi.org/10.1002/prot.24388
  • Primary Citation of Related Structures:  
    4BWC

  • PubMed Abstract: 

    The main function of lysosomal proteins is to degrade cellular macromolecules. We purified a novel lysosomal protein to homogeneity from bovine kidneys. By gene annotation, this protein is defined as a bovine phospholipase B-like protein 1 (bPLBD1) and, to better understand its biological function, we solved its structure at 1.9 Å resolution. We showed that bPLBD1 has uniform noncomplex-type N-glycosylation and that it localized to the lysosome. The first step in lysosomal protein transport, the initiation of mannose-6-phosphorylation by a N-acetylglucosamine-1-phosphotransferase, requires recognition of at least two distinct lysines on the protein surface. We identified candidate lysines by analyzing the structural and sequentially conserved N-glycosylation sites and lysines in bPLBD1 and in the homologous mouse PLBD2. Our model suggests that N408 is the primarily phosphorylated glycan, and K358 a key residue for N-acetylglucosamine-1-phosphotransferase recognition. Two other lysines, K334 and K342, provide the required second site for N-acetylglucosamine-1-phosphotransferase recognition. bPLBD1 is an N-terminal nucleophile (Ntn) hydrolase. By comparison with other Ntn-hydrolases, we conclude that the acyl moiety of PLBD1 substrate must be small to fit the putative binding pocket, whereas the space for the rest of the substrate is a large open cleft. Finally, as all the known substrates of Ntn-hydrolases have amide bonds, we suggest that bPLBD1 may be an amidase or peptidase instead of lipase, explaining the difficulty in finding a good substrate for any members of the PLBD family.


  • Organizational Affiliation

    Institute of Biotechnology, University of Helsinki, FI-00014, Helsinki, Finland; Department of Biosciences, University of Helsinki, FI-00014, Helsinki, Finland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PHOSPHOLIPASE B-LIKE 1170Bos taurusMutation(s): 0 
EC: 3.1.1
UniProt
Find proteins for Q9GL30 (Bos taurus)
Explore Q9GL30 
Go to UniProtKB:  Q9GL30
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9GL30
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PHOSPHOLIPASE B-LIKE 1321Bos taurusMutation(s): 0 
EC: 3.1.1
UniProt
Find proteins for Q9GL30 (Bos taurus)
Explore Q9GL30 
Go to UniProtKB:  Q9GL30
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9GL30
Glycosylation
Glycosylation Sites: 4
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C, D, E
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
P6G
Query on P6G

Download Ideal Coordinates CCD File 
I [auth B]HEXAETHYLENE GLYCOL
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
NAG
Query on NAG

Download Ideal Coordinates CCD File 
G [auth B],
H [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
P4G
Query on P4G

Download Ideal Coordinates CCD File 
F [auth A]1-ETHOXY-2-(2-ETHOXYETHOXY)ETHANE
C8 H18 O3
RRQYJINTUHWNHW-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
J [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
OCS
Query on OCS
B
L-PEPTIDE LINKINGC3 H7 N O5 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free:  0.231 (Depositor), 0.230 (DCC) 
  • R-Value Work:  0.188 (Depositor), 0.190 (DCC) 
  • R-Value Observed: 0.190 (Depositor) 
Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.37α = 90
b = 97.37β = 90
c = 140.945γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted NAGClick on this verticalbar to view detailsBest fitted P4GClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-09-18
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary
  • Version 2.1: 2023-12-20
    Changes: Data collection, Database references, Refinement description, Structure summary