3HQ2

BsuCP Crystal Structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Insight into the substrate length restriction of M32 carboxypeptidases: Characterization of two distinct subfamilies.

Lee, M.M.Isaza, C.E.White, J.D.Chen, R.P.Liang, G.F.He, H.T.Chan, S.I.Chan, M.K.

(2009) Proteins 77: 647-657

  • DOI: 10.1002/prot.22478
  • Primary Citation of Related Structures:  
    3HOA, 3HQ2

  • PubMed Abstract: 
  • M32 carboxypeptidases are a distinct family of HEXXH metalloproteases whose structures exhibit a narrow substrate groove that is blocked at one end. Structural alignments with other HEXXH metalloprotease-peptide complexes suggested an orientation in which the substrate is directed towards the back of the groove ...

    M32 carboxypeptidases are a distinct family of HEXXH metalloproteases whose structures exhibit a narrow substrate groove that is blocked at one end. Structural alignments with other HEXXH metalloprotease-peptide complexes suggested an orientation in which the substrate is directed towards the back of the groove. This led us to hypothesize, and subsequently confirm that the maximum substrate length for M32 carboxypeptidases is restricted. Structural and sequence analyses implicate a highly conserved Arg at the back of the groove as being critical for this length restriction. However, the Thermus thermophilus and Bacillus subtilis M32 members lack this conserved Arg. Herein, we present the biochemical and structural characterization of these two proteins. Our findings support the important role of the conserved Arg in maintaining the length restriction, and reveal a proline-rich loop as an alternate blocking strategy. Based on our results, we propose that M32 carboxypeptidases from Bacilli belong to a separate subfamily.


    Organizational Affiliation

    The Ohio State Biophysics Program, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio 43210, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bacillus subtilis M32 carboxypeptidaseA, B501Bacillus subtilisMutation(s): 0 
Gene Names: BSU22080ypwA
EC: 3.4.24 (PDB Primary Data), 3.4.17.19 (UniProt)
UniProt
Find proteins for P50848 (Bacillus subtilis (strain 168))
Explore P50848 
Go to UniProtKB:  P50848
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50848
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
D [auth A],
M [auth B]
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A],
E [auth A],
H [auth A],
J [auth A],
L [auth B],
C [auth A],
E [auth A],
H [auth A],
J [auth A],
L [auth B],
N [auth B],
P [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
F [auth A],
G [auth A],
I [auth A],
K [auth A],
O [auth B],
F [auth A],
G [auth A],
I [auth A],
K [auth A],
O [auth B],
Q [auth B],
R [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
F
Query on F

Download Ideal Coordinates CCD File 
S [auth B]FLUORIDE ION
F
KRHYYFGTRYWZRS-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.957α = 90
b = 149.002β = 90
c = 217.84γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-06-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance