SBGrid Newsletter: January 2024

Dear Consortium Members and Affiliates,

 

It's time for our monthly SBGrid update, as we close out the first month in 2024. Read on for introductions to new members of the SBGrid team, the latest webinar news, a story on SBGrid member Bing Chen, a software push that includes 24 updates and three new titles, thirteen new members to welcome, and three member publication highlights

 

Introductions are in order, since you may have noticed a couple of new folks on the SBGrid team responding to your tickets:

  • Gigi Gonzalez joined us in 2023 and acts as a key contact for contributing software developers, managing licensed software inclusions, and organizing webinars and workshops. 
  • Eli Riekeberg is the newest member of the SBGrid team and will focus on curating and compiling software and responding to support requests. Eli comes with background developing and implementing advanced computational tools for researchers in both academic and industrial settings.

Our January member tale puts the spotlight on Bing Chen of Boston Children's Hospital, whose quick pivot to SARS-CoV-2 in 2020 kept the lab in business, and history of working with HIV helped to supply techniques for early success and a dedication to uncovering the full fusion story. [Read More]

 

Join us Tuesday, February 13th at 12pm EDT for our next software webinar with Björn Forsberg, postdoctoral fellow at the Karolinska Institutet, who will give an introduction to OccuPy, a program for estimating local scaling of cryo-EM maps to approximate relative occupancy and resolution.

 

If you missed our January webinar with Graeme Winter giving an update on DIALS, you can find the recorded version on the SBGrid YouTube channel.

 

To receive email reminders about upcoming webinars, please be sure to register for the series! Registration here: https://sbgrid.org/webinars/#register

 

Upcoming SBGrid Webinars

Feb 13: OccuPy  - Björn Forsberg
Mar 12:RELION 5.0 - Sjors Scheres

Apr 9: RFdiffusion - Brian Trippe

May 14: Free energy methods in Amber - Darrin York

Jun 11: TomoDRGN - Joseph Davis

Jul 9: matchmaps - Dennis Brookner

Webinar registration and details

SBGrid webinars are hosted with partial support from the NIH R25 Continuing Education for Structural Biology Mentors #GM151273, in collaboration with Co-PI Jamaine Davis of Meharry Medical College.

This month's software push is a big one, including updates to twenty-four titles - BCFtools, Blast+, Bowtie2, ChimeraX, cisTEM, Coot, cryoDRGN, crYOLO, DIALS, GROMACS, IGV, Isolde, MemBrain-Seg, Model-Angelo, NMRPipe, NAMD, PEET, Phenix, Protomo, SCIPION, Tomo3D, TomoAND, TomoTwin, and XDSGUI - along with three new tools: Chroma, Dynamo-tools, and relion_composite_masks. See Software Changes below for complete details.

 

Thirteen new members joined SBGrid since our last update, including: Gira Bhabha on her way to Johns Hopkins University, Eric Greene of San Francisco State University, Min Dong of Boston Children's Hospital, and Alessio Accardi, Olga Boudker, David Eliezer, Edwin Fluck of the CryoEM Core, Xin-Yun Huang, George Khelashvili, Joshua Levitz, Crina Nimigean, and Paul Riegelhaupt all from Weill Cornell Medicine. Welcome to our newest members!

 

Member Publication Highlights

From our graduate student desk

Over 100 new member publications appeared in journals this month. You can find a complete listing on our website, along with a couple of notable highlights below:

 

- Fisk University student Vida Storm Robertson highlighted a publication from SBGrid member Susan Shao of Harvard Medical School that appeared in Nature Chemical Biology and shows the unique ability of a small molecule SRI-41315 to act as a glue, clogging up ribosomal function. [Read more]

 

- Meharry Medical College student KeAndreya Morrison's highlight features a Nature publication from the laboratory of SBGrid member Tina Iverson of Vanderbilt University, in which the authors explore the different protein complex intermediates that lead to the formation of the fully matured protein complex, succinate dehydrogenase (SDH), which forms complex II of the electron transport chain in mitochondria. [Read more]

 

Deposit your experimental datasets

If you're currently preparing a manuscript, please remember that, while you're making the PDB record deposit and publication submission, you can also preserve your primary experimental datasets with deposits to the SBGrid Data Bank.

Cite SBGrid

SBGrid operations are funded with member fees and grants, so we are grateful when you are able to acknowledge SBGrid in your presentations and publications.

 

Please use this SBGrid logo on the acknowledgements slide of your presentations.

 

We recommend the following boilerplate language for inclusion in publications that report results obtained with SBGrid supported software:

Structural biology applications used in this project were compiled and configured by SBGrid [1].

[1] A. Morin, B. Eisenbraun, J. Key, P. C. Sanschagrin, M. A. Timony, M. Ottaviano, and P. Sliz, “Collaboration gets the most out of software.,” Elife, vol. 2, p. e01456, Sep. 2013.

Link to article: https://elifesciences.org/articles/01456.

SBGrid Acknowledgements

SBGrid's eLife paper received five new citations since our last reporting, from these SBGrid members: 

 

Tian-Min Fu of The Ohio State University in Nature Structural and Molecular Biology: PtuA and PtuB assemble into an inflammasome-like oligomer for anti-phage defense;  Ekaterina Heldwein of Tufts University School of Medicine and Elizabeth Draganova (now at Emory University School of Medicine) in PLOS Pathogens: 

The universal suppressor mutation restores membrane budding defects in the HSV-1 nuclear egress complex by stabilizing the oligomeric lattice; M. Gordon Joyce  of the U.S. Military HIV Research Program, Walter Reed Army Institute of Research in Structure: Antibody targeting of conserved sites of vulnerability on the SARS-CoV-2 spike receptor-binding domain, and in Nature Communications: Diverse array of neutralizing antibodies elicited upon Spike Ferritin Nanoparticle vaccination in rhesus macaques; Andrew Kruse of Harvard Medical School and Daniel Kahne of Harvard University in Nature: A new antibiotic traps lipopolysaccharide in its intermembrane transporter; Bo Liang of Emory University School of Medicine in Nature: Structures of the promoter-bound respiratory syncytial virus polymerase.; Melanie Ohi of University of Michigan in Journal of Molecular Biology: Structural Analysis of Membrane-associated Forms of Helicobacter pylori VacA Toxin; and Nicholas Schnicker of The University of Iowa in Journal of Virology: Adaptation of SARS-CoV-2 to ACE2H353K mice reveals new spike residues that drive mouse infection

 

Software Changes

BCFtools 1.19 allows users to filter expressions using a file with list of strings to match, query REF,ALT columns directly, along with many changes to specific commands.

 

Blast+ 2.15.0 allows users to limit searches using non-leaf taxID (e.g., all bacteria) without running a helper script, selects the best threading mode (i.e., sets -mt_mode option) based on your query and database for BLASTN, BLASTP, BLASTX, and TBLASTN, has an optimized batch size for blastx-fast for smaller databases, along with other performance improvements. 

 

Bowtie 2 2.5.3 fixes a memory usage problem and crashes when processing empty FASTQ records, the problem of treating -f and -F as mutually exclusive, and adds new support for libsais to bowtie2-build for faster index building.

 

Choroma was added to SBGrid in January at version 20231201. Chroma is a generative model for designing proteins programmatically.

 

ChimeraX release 20230908 is available.

 

cisTEM 2.0.0 alpha is available via version override.

 

Coot versions 0.9.8.92 for Linux and 0.9.8.8 for Mac are now available.

 

cryoDRGN v3.1.0-beta includes a new interactive command-line interface known as cryodrgn_filter, an option to produce a plot of the learning curve in cryodrgn_analyze, an added cell in cryoDRGN_filtering jupyter notebook returned by cryodrgn_analyze for filtering by UMAP/PC values.

 

crYOLO 1.9.7 will be helpful for those who pick filaments in micrographs and tomograms, with optimization of the weight of the loss component responsible for estimating the filament direction and of default parameters when tracing filaments in 3D. There's also a fix to a bug that removed boxes at the end of each filament trace.

 

Dynamo-tools is new to SBGrid at version 1.0.0. Dynamo-tools is a collection of tools for subtomogram averaging in dynamo.

 

DIALS 3.17.0 is the new default and includes a number of improvements including the removal of circular dependencies between DIALS and cctbx.xfel by using the new serialtbx, a dials.import update to enable use of an image range selection when importing a still sequence, improved CC½ fitting in dials.estimate_resolution using a weighted tanh fit, an update to dials.find_spots and dials.integrate to accept exclude_images_multiple=N, a new dials.ssx_integrate command  mosaicity_max_limit= setting to control the mosaicity limit considered unphysically large, a new max_cell_volume_change_fraction= parameter in dials.ssx_integrate to catch highly divergent cell refinements, a new dxtbx tool - nxmx_writer - for converting any data dxtbx can read to NeXus data, an update to enable slicing a subset of images/templates in xia2.ssx using <filename>:start:end syntax, in xia2.ssx_reduce improved workflow for resolving indexing ambiguity and a new starting_geometry= option to set an initial geometry for further geometry refinement, and in xia2.cluster_analysis, a run_cluster_identification= option to toggle cluster identification analysis

 

GROMACS release 2024-rc includes native use of the Colvars library, which simplifies the use of advanced enhanced sampling simulations, reduced artifacts from Lennard-Jones pair interactions on the pressure by a configurable increase of the Verlet buffer, and corrections to the deform option. Simulations with box deformation now behave correctly under high shear or when a solid or membrane fractures, a new option for hydrogen mass repartitioning in grompp enables easy access to performance improvements, AWH improvements include better control of the histogram growth factor and automatic scaling of the target distribution based on the AWH friction metric, and configurable HeFFTe multi-GPU FFT options let users fine-tune the settings.

 

IGV 2.17.0 changes include base modification options that now include the choice of monocolor and two-color schemes with colors for each modification and to represent the unmodified base. Alignment track updates include expanded insertions, redesigned so that insertions are now indicated with triangles under the genomic ruler, a new option to group by selected insertion locus, improvements to visualization of chimeric (split) reads, new graphical annotations for INDEL quality on SAM/BAM/CRAM files containing Ultima Genomics flow-based reads, and a new autosave feature for IGV sessions.

 

Isolde was added to ChimeraX versions 1.5 and 1.6.

 

MemBrain-Seg release e28baac is now available via version override.

 

ModelAngelo is now at release 1.0.12.

 

NMRPipe release 20230523 is the new default.

 

NAMD 33.0b5 is now available via version override. This update includes 3.0b5-universal-multicore for Mac and 3.0b5-multicore-CUDA /3.0b5-netlrts-smp-CUDA for Linux.

 

PEET 1.17.0 has an update to Matlab R0222b and added usePcaMotiveLists.

 

Phenix 1.21-5207 is the new default.

 

Protomo 3.1.0 includes subvolume 3D-alignment and classification (formerly called i3) and no longer depends on Python. This version also enhancements to scripts to align multiple tilt series in parallel.

 

relion_composite_masks is another new title. relion_composite_masks is a fork of relion 4.0.1 with support for multiple masks during refinement.

 

SCIPION 3.1.0 is now available.

 

Tomo3D 2.2 was pushed out.

 

TomoAND is now at version 2.0.

 

TomoTwin 0.8 is the new default. This version improves the user experience when working with the clustering workflow. You may notice that no label mask is created when calculating a umap because it is computed in the background. Note: you will need to recalculate your umaps to take advantage of this change. Also new: a umaps progress bar, a time delay when selecting clusters in the umap between the selection and the actual highlighting, and automatic selection of an appropriate embedding file when saving cluster targets when possible.

 

XDSGUI 20230505 improvements include avoidance of strange characters in standard output upon reading images using the DECTRIS neggia library, an increase in the maximum length of file names to 256 now accepted by XDSCONV and XSCALE, and automatic removal of unused memory space in XSCALE.

 

Please note that not all software applications are available to every SBGrid member type. If you see an application that you would like to use, but is not included in your software tree, please contact us to find out what options are available for access.

 

This newsletter is sent to you because you are a member or affiliate of the SBGrid Consortium.

 

More information about the SBGrid Consortium is available at https://sbgrid.org

Report software bugs: sbgrid.org/bugs

 

 

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