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Title: MBIR: A cryo-ET 3D reconstruction method that effectively minimizes missing wedge artifacts and restores missing information

Journal Article · · Journal of Structural Biology
 [1];  [2];  [3];  [4]; ORCiD logo [1]
  1. Purdue Univ., West Lafayette, IN (United States). Markey Center for Structural Biology. Dept. of Biological Sciences
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Yale Univ., West Haven, CT (United States). School of Medicine. Dept. of Microbial Pathogenesis
  4. Purdue Univ., West Lafayette, IN (United States). School of Electrical and Computer Engineering

Cryo-Electron Tomography (cryo-ET) has become an essential technique in revealing cellular and macromolecular assembly structures in their native states. However, due to radiation damage and the limited tilt range, cryo-ET suffers from low contrast and missing wedge artifacts, which limits the tomograms to low resolution and hinders further biological interpretation. We applied the Model-Based Iterative Reconstruction (MBIR) method to obtain tomographic 3D reconstructions of experimental cryo-ET datasets and demonstrated the advantages of MBIR in contrast improvement, missing wedge artifacts reduction, missing information restoration, and subtomogram averaging compared with other reconstruction approaches. Considering the outstanding reconstruction quality, MBIR has a great potential in the determination of high resolution biological structures with cryo-ET.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Purdue Univ., West Lafayette, IN (United States)
Sponsoring Organization:
USDOE; National Inst. of Health (NIH) (United States)
Grant/Contract Number:
AC05-00OR22725; 1U01NS110437
OSTI ID:
1511930
Journal Information:
Journal of Structural Biology, Vol. 206, Issue 2; ISSN 1047-8477
Publisher:
ElseiverCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (1)

The cellular landscape by cryo soft X-ray tomography journal July 2019