3ZU8

STRUCTURE OF CBM3B OF MAJOR SCAFFOLDIN SUBUNIT SCAA FROM ACETIVIBRIO CELLULOLYTICUS DETERMINED ON THE NIKEL ABSORPTION EDGE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.801 Å
  • R-Value Free: 0.182 
  • R-Value Work: 0.154 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of Cbm3B of the Major Scaffoldin Subunit Scaa from Acetivibrio Cellulolyticus

Yaniv, O.Halfon, Y.Shimon, L.J.W.Bayer, E.A.Lamed, R.Frolow, F.

(2012) Acta Crystallogr.,Sect.F 68: 8

  • DOI: 10.1107/S174430911104807X
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The carbohydrate-binding module (CBM) of the major scaffoldin subunit ScaA of the cellulosome of Acetivibrio cellulolyticus is classified as a family 3b CBM and binds strongly to cellulose. The CBM3b was overexpressed, purified and crystallized, and ...

    The carbohydrate-binding module (CBM) of the major scaffoldin subunit ScaA of the cellulosome of Acetivibrio cellulolyticus is classified as a family 3b CBM and binds strongly to cellulose. The CBM3b was overexpressed, purified and crystallized, and its three-dimensional structure was determined. The structure contained a nickel-binding site located at the N-terminal region in addition to a 'classical' CBM3b calcium-binding site. The structure was also determined independently by the SAD method using data collected at the Ni-absorption wavelength of 1.48395 Å and even at a wavelength of 0.97625 Å in a favourable case. The new scaffoldin-borne CBM3 structure reported here provides clear evidence for the proposition that a family 3b CBM may be accommodated in scaffoldin subunits and functions as the major substrate-binding entity of the cellulosome assembly.


    Organizational Affiliation

    Department of Molecular Microbiology and Biotechnology, Tel Aviv University, 69978 Tel Aviv, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELLULOSOMAL SCAFFOLDIN
A
153Hungateiclostridium cellulolyticumMutation(s): 0 
Gene Names: cipV
EC: 3.2.1.4
Find proteins for Q9RPL0 (Hungateiclostridium cellulolyticum)
Go to UniProtKB:  Q9RPL0
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

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Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
NI
Query on NI

Download SDF File 
Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
1PE
Query on 1PE

Download SDF File 
Download CCD File 
A
PENTAETHYLENE GLYCOL
PEG400
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.801 Å
  • R-Value Free: 0.182 
  • R-Value Work: 0.154 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 52.263α = 90.00
b = 52.263β = 90.00
c = 192.938γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALEPACKdata scaling
SHELXphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-11
    Type: Initial release
  • Version 1.1: 2012-04-11
    Type: Other