9SFA | pdb_00009sfa

Cyclic nucleotide binding transcription factor Bd2879 - apo form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 
    0.273 (Depositor), 0.269 (DCC) 
  • R-Value Work: 
    0.237 (Depositor), 0.248 (DCC) 
  • R-Value Observed: 
    0.239 (Depositor) 

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

Validation slider image for 9SFA

This is version 1.1 of the entry. See complete history

Literature

Protein Target Highlights in CASP16: Insights From the Structure Providers.

Alexander, L.T.Follonier, O.M.Kryshtafovych, A.Abesamis, K.Bibi-Triki, S.Box, H.G.Breyton, C.Bringel, F.Carrique, L.d'Acapito, A.Dong, G.DuBois, R.Fass, D.Fiesco, J.M.Fox, D.R.Grimes, J.M.Grinter, R.Jenkins, M.Kamyshinsky, R.Keown, J.R.Lackner, G.Lammers, M.Liu, S.Lovering, A.L.Malinauskas, T.Masquida, B.Palm, G.J.Siebold, C.Su, T.Zhang, P.Zhou, Z.H.Fidelis, K.Topf, M.Moult, J.Schwede, T.

(2026) Proteins 94: 25-50

  • DOI: https://doi.org/10.1002/prot.70025
  • Primary Citation Related Structures: 
    9SFA

  • PubMed Abstract: 

    This article presents an in-depth analysis of selected CASP16 targets, with a focus on their biological and functional significance. The authors highlight the most relevant features of the target proteins and discuss how well these were reproduced in the submitted predictions. While the overall performance of structure prediction methods remains impressive, challenges persist, particularly in modeling rare structural motifs, flexible regions, small molecule interactions, posttranslational modifications, and biologically important interfaces. Addressing these limitations can strengthen the role of structure prediction in complementing experimental efforts and advancing both basic research and biomedical applications.


  • Organizational Affiliation
    • Biozentrum, University of Basel, Basel, Switzerland.

Macromolecule Content 

  • Total Structure Weight: 87.18 kDa 
  • Atom Count: 5,314 
  • Modeled Residue Count: 667 
  • Deposited Residue Count: 772 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Putative regulatory protein
A, B
386Bdellovibrio bacteriovorus HD100Mutation(s): 0 
Gene Names: Bd2879
UniProt
Find proteins for Q6MJA2 (Bdellovibrio bacteriovorus (strain ATCC 15356 / DSM 50701 / NCIMB 9529 / HD100))
Explore Q6MJA2 
Go to UniProtKB:  Q6MJA2
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6MJA2
Sequence Annotations
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Reference Sequence

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free:  0.273 (Depositor), 0.269 (DCC) 
  • R-Value Work:  0.237 (Depositor), 0.248 (DCC) 
  • R-Value Observed: 0.239 (Depositor) 
Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.912α = 90
b = 100.016β = 90
c = 198.918γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
XDSdata reduction
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Biotechnology and Biological Sciences Research Council (BBSRC)United KingdomBB/T00746X/1

Revision History  (Full details and data files)

  • Version 1.0: 2025-10-22
    Type: Initial release
  • Version 1.1: 2026-01-07
    Changes: Database references