Primary funding for this project comes from the National Institute of General Medical Sciences (NIGMS) , a division of the National Institutes of Health (NIH). Additional financial support for NE-CAT comes from the member institutions.
National Institutes of Health
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The Northeastern Collaborative Access Team (NE-CAT), located at the Advanced Photon Source (APS), is funded by its member institutions and the National Institute of General Medical Sciences (NIGMS). NE-CAT’s mission is to construct and operate synchrotron X-ray beamlines custom-built for technically challenging problems in structural biology.
NE-CAT operates two undulator beamlines, 24-ID-C and 24-ID-E. Both provide exceptionally stable X-ray beams for crystallographic data collection. These beamlines are also available for remote data collection.
The 24-ID-E beamline is a fixed energy microdiffraction beamline delivering X-rays at 12.66 keV, optimized for Se-SAD experiments. It is equipped with an Eiger-16M Pixel Array Detector, offering advantages similar to those of the Pilatus-6MF.
Both beamlines are equipped with state-of-the-art instrumentation to handle advanced data collection methods. MD2 microdiffractometers installed at both beamlines provide very clean beams from 5 microns to 100 microns in diameter and have exceptional sample visualization systems capable of visualizing micron-sized crystals with extreme clarity. Large-area detectors at both beamlines not only provide the best diffraction data, but also make it possible to resolve large unit cell dimensions. Detector lift is available at both beamlines, but detector tilt is possible only on the 24-ID-E beamline. Novel data collection techniques such as helical scanning are implemented at both beamlines. These techniques help reduce the effect of radiation damage and offer increased data quality. Diffraction based centering is available at both beamlines to locate crystals in opaque media, such as Lipidic Cubic Phase (LCP). Both beamlines are equipped with NE-CAT built ALS style sample automounting systems with fourteen puck capacity, thereby making screening of large numbers of crystals much faster and less effort intensive. Energy-dispersive EXAFS detectors at both beamlines enable rapid identification of metal atoms in crystalline or non-crystalline samples. Several sets of robotic pucks are available for users via our “puck loaning program”. A humidity-controlling device – HC1 is available to test the possibility of improving the diffraction by a small change of relative humidity of crystals. Users of the beamlines are supported by experienced resident crystallographers and have access to a full suite of data processing and structure analysis software from SBGrid. The NE-CAT developed software pipeline RAPD continuously monitors beamline activity and provides a data collection strategy on the fly and automatically processes the collected data. This also offers a remote participation opportunity where people at home can watch the progress of data collection via a web browser. A fully equipped chemistry laboratory and cold-room are available for users.
August 23, 2017
Zhou, Q., Zhou, P., Wang, A. L., Wu, D., Zhao, M., Sudhof, T. C., and Brunger, A. T. (2017) The primed SNARE-complexin-synaptotagmin complex for neuronal exocytosis, Nature [Epub ahead of print].
May 26, 2017
Feklistov, A., Bae, B., Hauver, J., Lass-Napiorkowska, A., Kalesse, M., Glaus, F., Altmann, K. H., Heyduk, T., Landick, R., and Darst, S. A. (2017) RNA polymerase motions during promoter melting, Science 356, 863-866.
April 14, 2017
Stanek, K. A., Patterson-West, J., Randolph, P. S., and Mura, C. (2017) Crystal structure and RNA-binding properties of an Hfq homolog from the deep-branching Aquificae: conservation of the lateral RNA-binding mode, Acta Crystallogr D Struct Biol 73, 294-315.
March 29, 2017
Yao, G., Lam, K. H., Perry, K., Weisemann, J., Rummel, A., and Jin, R. (2017) Crystal Structure of the Receptor-Binding Domain of Botulinum Neurotoxin Type HA, Also Known as Type FA or H, Toxins (Basel) 9.
February 17, 2017
Lees, J. A., Messa, M., Sun, E. W., Wheeler, H., Torta, F., Wenk, M. R., De Camilli, P., and Reinisch, K. M. (2017) Lipid transport by TMEM24 at ER-plasma membrane contacts regulates pulsatile insulin secretion, Science 355.
February 13, 2017
Shi, K., Carpenter, M. A., Banerjee, S., Shaban, N. M., Kurahashi, K., Salamango, D. J., McCann, J. L., Starrett, G. J., Duffy, J. V., Demir, O., Amaro, R. E., Harki, D. A., Harris, R. S., and Aihara, H. (2017) Structural basis for targeted DNA cytosine deamination and mutagenesis by APOBEC3A and APOBEC3B, Nat Struct Mol Biol 24, 131-139.
January 31, 2017
Nguyen, L. A., Wang, J., and Steitz, T. A. (2017) Crystal structure of Pistol, a class of self-cleaving ribozyme, Proc Natl Acad Sci U S A.
January 11, 2017
Kuk, A. C., Mashalidis, E. H., and Lee, S. Y. (2016) Crystal structure of the MOP flippase MurJ in an inward-facing conformation, Nat Struct Mol Biol, [epub ahead of print]
December 15, 2017
Yang, H., Gao, P., Rajashankar, K. R., and Patel, D. J. (2016) PAM-Dependent Target DNA Recognition and Cleavage by C2c1 CRISPR-Cas Endonuclease, Cell 167, 1814-1828 e1812.
December 6, 2016
Bozzi, A. T., Bane, L. B., Weihofen, W. A., Singharoy, A., Guillen, E. R., Ploegh, H. L., Schulten, K., and Gaudet, R. (2016) Crystal Structure and Conformational Change Mechanism of a Bacterial Nramp-Family Divalent Metal Transporter, Structure 24, 2102-2114.
November 20, 2016
Dowling, D. P., Miles, Z. D., Kohrer, C., Maiocco, S. J., Elliott, S. J., Bandarian, V., and Drennan, C. L. (2016) Molecular basis of cobalamin-dependent RNA modification, Nucleic Acids Res 44, 9965-9976.
November 3, 2016
Dimitrova, Yoana N., Jenni, S., Valverde, R., Khin, Y., and Harrison, Stephen C. (2016) Structure of the MIND Complex Defines a Regulatory Focus for Yeast Kinetochore Assembly, Cell 167, 1014-1027 e1012.
October 21, 2016
Rechkoblit, O., Gupta, Y.K., Malik, R., Rajashankar, K.R., Johnson, R.E., Prakash, L., Prakash, S., Aggarwal, A.K. (2016) Structure and mechanism of human PrimPol, a DNA polymerase with primase activity, Science Advances, 2(10) e1601317
October 20, 2016
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