Julian P. Whitelegge

Rhizobium common nod genes are required for biofilm formation (2008)

Fujishige, Nancy A, Lum, Michelle R, De Hoff, Peter L, Whitelegge, Julian P, Faull, Kym F, Hirsch, Ann M

In legume nitrogen-fixing symbioses, rhizobial nod genes are obligatory for initiating infection thread formation and root nodule development. Here we show that the common nod genes, nodD1ABC, whose...

Lysine acetylation can generate highly charged enzymes with increased resistance toward irreversible inactivation (2008)

Shaw, Bryan F., Schneider, Gregory F., Bilgiçer, Basar, Kaufman, George K., Neveu, John M., Lane, William S., ...

This paper reports that the acetylation of lysine ϵ-NH3 + groups of α-amylase—one of the most important hydrolytic enzymes used in industry—produces highly negatively charged variants that...

Proteomics and Mass Spectrometry for Cancer Biomarker Discovery (2007)

Ming Lu, Kym F. Faull, Julian P. Whitelegge, Jianbo He, Dejun Shen, Romaine E. Saxton, ...

Proteomics is a rapidly advancing field not only in the field of biology but also in translational cancer research. In recent years, mass spectrometry and associated technologies have been explored...

Sequencing covalent modifications of membrane proteins (2006)

Whitelegge, Julian P, Laganowsky, Arthur, Nishio, John, Souda, Puneet, Zhang, Huamin, Cramer, William A

A number of strategies have successfully extended plant proteomics into the bilayer domain. Important benefits can be afforded by including a well-resolved intact protein mass spectrum alongside...

Sequencing covalent modifications of membrane proteins (2006)

Whitelegge, Julian P., Laganowsky, Arthur, Nishio, John, Souda, Puneet, Zhang, Huamin, Cramer, William A.

A number of strategies have successfully extended plant proteomics into the bilayer domain. Important benefits can be afforded by including a well-resolved intact protein mass spectrum alongside...

Sequencing covalent modifications of membrane proteins (2006)

Whitelegge, Julian P., Laganowsky, Arthur, Nishio, John, Souda, Puneet, Zhang, Huamin, Cramer, William A.

A number of strategies have successfully extended plant proteomics into the bilayer domain. Important benefits can be afforded by including a well-resolved intact protein mass spectrum alongside...

Proteomic profiling of cancer biomarkers (2003)

Shau, Hungyi, Chandler, G. Scott, Whitelegge, Julian P., Gornbein, Jeffrey A., Faull, Kym F., Chang, Helena R.

Early detection and correct diagnosis are essential for effective treatment of cancer and patient survival. Complete sequencing of the human genome, and the genomes of other species, provides...

Demonstration by Mass Spectrometry that Purified Native Treponema pallidum Rare Outer Membrane Protein 1 (Tromp1) Has a Cleaved Signal Peptide

Blanco, David R., Whitelegge, Julian P., Miller, James N., Lovett, Michael A.

Purified native Tromp1 was subjected to mass spectrometric analysis in order to determine conclusively whether this protein possesses a cleaved or uncleaved signal peptide. The molecular masses of...

The Chloroplastic GrpE Homolog of Chlamydomonas: Two Isoforms Generated by Differential Splicing

Schroda, Michael, Vallon, Olivier, Whitelegge, Julian P., Beck, Christoph F., Wollman, Francis-André

In eubacteria and mitochondria, Hsp70 chaperone activity is controlled by the nucleotide exchange factor GrpE. We have identified the chloroplastic GrpE homolog of Chlamydomonas, CGE1, as an ∼26-kD...

Crystal structure of saposin B reveals a dimeric shell for lipid binding

Ahn, Victoria E., Faull, Kym F., Whitelegge, Julian P., Fluharty, Arvan L., Privé, Gilbert G.

Saposin B is a small, nonenzymatic glycosphingolipid activator protein required for the breakdown of cerebroside sulfates (sulfatides) within the lysosome. The protein can extract target lipids from...

Elucidation of substrate binding interactions in a membrane transport protein by mass spectrometry

Weinglass, Adam B., Whitelegge, Julian P., Hu, Yonglin, Verner, Gillian E., Faull, Kym F., Kaback, H.Ronald

Integration of biochemical and biophysical data on the lactose permease of Escherichia coli has culminated in a molecular model that predicts substrate–protein proximities which include interaction...

Identification of Proteins Associated with Murine Gammaherpesvirus 68 Virions

Bortz, Eric, Whitelegge, Julian P., Jia, Qingmei, Zhou, Z. Hong, Stewart, James P., Wu, Ting-Ting, ...

Murine gammaherpesvirus 68 (MHV68 [also known as γHV-68]) is distinguished by its ability to replicate to high titers in cultured cells, making it an excellent candidate for studying...

The evolution of transmembrane helix kinks and the structural diversity of G protein-coupled receptors

Yohannan, Sarah, Faham, Salem, Yang, Duan, Whitelegge, Julian P., Bowie, James U.

One of the hallmarks of membrane protein structure is the high frequency of transmembrane helix kinks, which commonly occur at proline residues. Because the proline side chain usually precludes...

Temporal Analysis of the Antigenic Composition of Borrelia burgdorferi during Infection in Rabbit Skin

Crother, Timothy R., Champion, Cheryl I., Whitelegge, Julian P., Aguilera, Rodrigo, Wu, Xiao-Yang, Blanco, David R., ...

The numbers of host-adapted Borrelia burgdorferi (HAB) organisms in rabbit skin were assessed by real-time PCR over the first 3 weeks of infection. Maximal numbers were found at day 11, while...

A Monoclonal Antibody That Conveys In Vitro Killing and Partial Protection in Experimental Syphilis Binds a Phosphorylcholine Surface Epitope of Treponema pallidum

Blanco, David R., Champion, Cheryl I., Dooley, Alek, Cox, David L., Whitelegge, Julian P., Faull, Kym, ...

Immunization with purified Treponema pallidum outer membrane vesicles (OMV) has previously resulted in high-titer complement-dependent serum bactericidal activity. In this study, OMV immunization...

Interactions between Partner Switcher Orthologs BtrW and BtrV Regulate Type III Secretion in Bordetella

Kozak, Natalia A., Mattoo, Seema, Foreman-Wykert, Amy K., Whitelegge, Julian P., Miller, Jeff F.

We have recently described a multicomponent cascade that regulates type III secretion in Bordetella. This cascade includes a group of proteins, BtrU, BtrW, and BtrV, that contain an array of domains...

Novel Role for Na,K-ATPase in Phosphatidylinositol 3-Kinase Signaling and Suppression of Cell Motility

Barwe, Sonali P., Anilkumar, Gopalakrishnapillai, Moon, Sun Y., Zheng, Yi, Whitelegge, Julian P., Rajasekaran, Sigrid A., ...

The Na,K-ATPase, consisting of α- and β-subunits, regulates intracellular ion homeostasis. Recent studies have demonstrated that Na,K-ATPase also regulates epithelial cell tight junction structure...

J-Domain Protein CDJ2 and HSP70B Are a Plastidic Chaperone Pair That Interacts with Vesicle-Inducing Protein in Plastids 1

Liu, Cuimin, Willmund, Felix, Whitelegge, Julian P., Hawat, Susan, Knapp, Bettina, Lodha, Mukesh, ...

J-domain cochaperones confer functional specificity to their heat shock protein (HSP)70 partner by recruiting it to specific substrate proteins. To gain insight into the functions of plastidic...

Demonstration by Mass Spectrometry that Purified Native Treponema pallidum Rare Outer Membrane Protein 1 (Tromp1) Has a Cleaved Signal Peptide

Blanco, David R., Whitelegge, Julian P., Miller, James N., Lovett, Michael A.

Purified native Tromp1 was subjected to mass spectrometric analysis in order to determine conclusively whether this protein possesses a cleaved or uncleaved signal peptide. The molecular masses of...

The Chloroplastic GrpE Homolog of Chlamydomonas: Two Isoforms Generated by Differential Splicing

Schroda, Michael, Vallon, Olivier, Whitelegge, Julian P., Beck, Christoph F., Wollman, Francis-André

In eubacteria and mitochondria, Hsp70 chaperone activity is controlled by the nucleotide exchange factor GrpE. We have identified the chloroplastic GrpE homolog of Chlamydomonas, CGE1, as an ∼26-kD...

Crystal structure of saposin B reveals a dimeric shell for lipid binding

Ahn, Victoria E., Faull, Kym F., Whitelegge, Julian P., Fluharty, Arvan L., Privé, Gilbert G.

Saposin B is a small, nonenzymatic glycosphingolipid activator protein required for the breakdown of cerebroside sulfates (sulfatides) within the lysosome. The protein can extract target lipids from...

Elucidation of substrate binding interactions in a membrane transport protein by mass spectrometry

Weinglass, Adam B., Whitelegge, Julian P., Hu, Yonglin, Verner, Gillian E., Faull, Kym F., Kaback, H.Ronald

Integration of biochemical and biophysical data on the lactose permease of Escherichia coli has culminated in a molecular model that predicts substrate–protein proximities which include interaction...

Identification of Proteins Associated with Murine Gammaherpesvirus 68 Virions

Bortz, Eric, Whitelegge, Julian P., Jia, Qingmei, Zhou, Z. Hong, Stewart, James P., Wu, Ting-Ting, ...

Murine gammaherpesvirus 68 (MHV68 [also known as γHV-68]) is distinguished by its ability to replicate to high titers in cultured cells, making it an excellent candidate for studying...

The evolution of transmembrane helix kinks and the structural diversity of G protein-coupled receptors

Yohannan, Sarah, Faham, Salem, Yang, Duan, Whitelegge, Julian P., Bowie, James U.

One of the hallmarks of membrane protein structure is the high frequency of transmembrane helix kinks, which commonly occur at proline residues. Because the proline side chain usually precludes...

Temporal Analysis of the Antigenic Composition of Borrelia burgdorferi during Infection in Rabbit Skin

Crother, Timothy R., Champion, Cheryl I., Whitelegge, Julian P., Aguilera, Rodrigo, Wu, Xiao-Yang, Blanco, David R., ...

The numbers of host-adapted Borrelia burgdorferi (HAB) organisms in rabbit skin were assessed by real-time PCR over the first 3 weeks of infection. Maximal numbers were found at day 11, while...

Novel Role for Na,K-ATPase in Phosphatidylinositol 3-Kinase Signaling and Suppression of Cell Motility

Barwe, Sonali P., Anilkumar, Gopalakrishnapillai, Moon, Sun Y., Zheng, Yi, Whitelegge, Julian P., Rajasekaran, Sigrid A., ...

The Na,K-ATPase, consisting of α- and β-subunits, regulates intracellular ion homeostasis. Recent studies have demonstrated that Na,K-ATPase also regulates epithelial cell tight junction structure...

J-Domain Protein CDJ2 and HSP70B Are a Plastidic Chaperone Pair That Interacts with Vesicle-Inducing Protein in Plastids 1

Liu, Cuimin, Willmund, Felix, Whitelegge, Julian P., Hawat, Susan, Knapp, Bettina, Lodha, Mukesh, ...

J-domain cochaperones confer functional specificity to their heat shock protein (HSP)70 partner by recruiting it to specific substrate proteins. To gain insight into the functions of plastidic...

A Monoclonal Antibody That Conveys In Vitro Killing and Partial Protection in Experimental Syphilis Binds a Phosphorylcholine Surface Epitope of Treponema pallidum

Blanco, David R., Champion, Cheryl I., Dooley, Alek, Cox, David L., Whitelegge, Julian P., Faull, Kym, ...

Immunization with purified Treponema pallidum outer membrane vesicles (OMV) has previously resulted in high-titer complement-dependent serum bactericidal activity. In this study, OMV immunization...

Interactions between Partner Switcher Orthologs BtrW and BtrV Regulate Type III Secretion in Bordetella

Kozak, Natalia A., Mattoo, Seema, Foreman-Wykert, Amy K., Whitelegge, Julian P., Miller, Jeff F.

We have recently described a multicomponent cascade that regulates type III secretion in Bordetella. This cascade includes a group of proteins, BtrU, BtrW, and BtrV, that contain an array of domains...

Characterization of the Outer Membrane Proteome of Leptospira interrogans Expressed during Acute Lethal Infection▿

Nally, Jarlath E., Whitelegge, Julian P., Bassilian, Sara, Blanco, David R., Lovett, Michael A.

Pathogenic Leptospira species adapt to a wide range of environmental conditions during disease transmission and infection. While the proteome of in vitro cultivated Leptospira has been characterized...

Metal-free superoxide dismutase forms soluble oligomers under physiological conditions: A possible general mechanism for familial ALS

Banci, Lucia, Bertini, Ivano, Durazo, Armando, Girotto, Stefania, Gralla, Edith Butler, Martinelli, Manuele, ...

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder selectively affecting motor neurons; 90% of the total cases are sporadic, but 2% are associated with mutations in the...

Murine Gammaherpesvirus 68 ORF52 Encodes a Tegument Protein Required for Virion Morphogenesis in the Cytoplasm▿

Bortz, Eric, Wang, Lili, Jia, Qingmei, Wu, Ting-Ting, Whitelegge, Julian P., Deng, Hongyu, ...

The tegument, a semiordered matrix of proteins overlying the nucleocapsid and underlying the virion envelope, in viruses in the gamma subfamily of Herpesviridae is poorly understood. Murine...

Identities of Sequestered Proteins in Aggregates from Cells with Induced Polyglutamine Expression

Suhr, Steven T., Senut, Marie-Claude, Whitelegge, Julian P., Faull, Kym F., Cuizon, Denise B., Gage, Fred H.

Proteins with expanded polyglutamine (polyQ) tracts have been linked to neurodegenerative diseases. One common characteristic of expanded-polyQ expression is the formation of intracellular aggregates...

Amide bonds assemble pili on the surface of bacilli

Budzik, Jonathan M., Marraffini, Luciano A., Souda, Puneet, Whitelegge, Julian P., Faull, Kym F., Schneewind, Olaf

Pilin precursors are the building blocks of pili on the surface of Gram-positive bacteria; however, the assembly mechanisms of these adhesive fibers are unknown. Here, we describe the chemical bonds...

Detergent-insoluble Aggregates Associated with Amyotrophic Lateral Sclerosis in Transgenic Mice Contain Primarily Full-length, Unmodified Superoxide Dismutase-1*S⃞

Shaw, Bryan F., Lelie, Herman L., Durazo, Armando, Nersissian, Aram M., Xu, Guillan, Chan, Pik K., ...

Determining the composition of aggregated superoxide dismutase 1 (SOD1) species associated with amyotrophic lateral sclerosis (ALS), especially with respect to co-aggregated proteins and...

Initiation and elongation in fibrillation of ALS-linked superoxide dismutase

Chattopadhyay, Madhuri, Durazo, Armando, Sohn, Se Hui, Strong, Cynthia D., Gralla, Edith B., Whitelegge, Julian P., ...

Familial amyotrophic lateral sclerosis (fALS) caused by mutations in copper–zinc superoxide dismutase (SOD1) is characterized by the presence of SOD1-rich inclusions in spinal cords. Similar...

Lysine acetylation can generate highly charged enzymes with increased resistance toward irreversible inactivation

Shaw, Bryan F., Schneider, Gregory F., Bilgiçer, Başar, Kaufman, George K., Neveu, John M., Lane, William S., ...

This paper reports that the acetylation of lysine ε-NH3 + groups of α-amylase—one of the most important hydrolytic enzymes used in industry—produces highly negatively charged variants that are...

Proteomics and Mass Spectrometry for Cancer Biomarker Discovery

Lu, Ming, Faull, Kym F., Whitelegge, Julian P., He, Jianbo, Shen, Dejun, Saxton, Romaine E., ...

Proteomics is a rapidly advancing field not only in the field of biology but also in translational cancer research. In recent years, mass spectrometry and associated technologies have been explored...

Anthrax Lethal Toxin Induced Lysosomal Membrane Permeabilization and Cytosolic Cathepsin Release Is Nlrp1b/Nalp1b-Dependent

Averette, Kathleen M., Pratt, Matthew R., Yang, Yanan, Bassilian, Sara, Whitelegge, Julian P., Loo, Joseph A., ...

NOD-like receptors (NLRs) are a group of cytoplasmic molecules that recognize microbial invasion or ‘danger signals’. Activation of NLRs can induce rapid caspase-1 dependent cell death termed...