Curated repository for small angle scattering data and models


SASBDB currently contains:


5183

experimental data sets

6397

models
597 experimental data sets on hold
934 models on hold

Small angle scattering (SAS) of X-ray and neutrons provides structural information on biological macromolecules in solution at a resolution of 1-2 nm.
SASBDB is a fully searchable curated repository of freely accessible and downloadable experimental data, which are deposited together with the relevant experimental conditions, sample details, derived models and their fits to the data.

Recent depositions:

SASDY97 – Alkaline phosphatase (ALP) under vis

Wild Alkaline Phosphatase under vis experimental SAS data
PYMOL model
Sample: Wild Alkaline Phosphatase under vis dimer, 97 kDa Escherichia coli protein
Buffer: 25 mM Tris, 100 mM NaCl, 2 mM TCEP, 3% (w/v) glycerol, pH: 7.5
Experiment: SAXS data collected at BL19U2, Shanghai Synchrotron Radiation Facility (SSRF) on 2024 Dec 23
Single-engineered-residue solvation perturbations regulate global protein architecture and function. Nat Commun (2026)
Liu Y, Zhai J, Cao S, Guo H, Zhang H, Song B, Guo J, Men D, He X, Li D
RgGuinier 2.8 nm
Dmax 9.0 nm
VolumePorod 75 nm3

N-terminal truncation mutant, of the conjugative protein of the F plasmid Type IV Secretion System, TraW.
TraW (Δ1-67) experimental SAS data
Solution characterization of TraW, a regulatory protein of the F plasmid type 4 secretion system Structural Dynamics 2026 Mar 17 13(2)
Structural Dynamics 13(2) (2026 Mar 17)
CCDC6-RET fusion protein variant c
CCDC6-RET fusion protein variant c (K147M, Δ216-229) experimental SAS data
The oncogenic CCDC6-RET fusion protein is a dual ATP- and ADP-dependent kinase Nature Communications 2026 Mar 06
Nature Communications (2026 Mar 06)
RTX cytotoxin pro-MbxA without acylation (pro-MbxA)
RTX cytotoxin pro-MbxA without acylation experimental SAS data
Acylation of the RTX toxin MbxA stimulates host membrane disruption through a specific interaction with cholesterol Biochimica et Biophysica Acta (BBA) - Biomembranes 2025 Nov :184487
Biochimica et Biophysica Acta (BBA) - Biomembranes :184487 (2025 Nov)
N-terminal domain of EccA5
ESX-5 secretion system protein EccA5 experimental SAS data
The crystal structure of the TPR domain of the EccA5 ATPase and demonstration of its interaction with EspG5 from the mycobacterial ESX-5 pathway. FEBS Lett 2026 Feb 28;
FEBS Lett (2026 Feb 28)
Farnesoid X receptor homo-dimer bound to inverted repeat DNA
inverted repeat DNAIsoform 3 of Bile acid receptor experimental SAS data
DNA induces non-canonical dimerization of the farnesoid X receptor. Nucleic Acids Res 2026 Feb 5;54(4)
Nucleic Acids Res 54(4) (2026 Feb 5)

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To cite SASBDB refer to: Kikhney AG, Borges CR, Molodenskiy DS, Jeffries CM, Svergun DI (2020) SASBDB: Towards an automatically curated and validated repository for biological scattering data. Protein Science 29(1); 66-75.