Duncan C. Krause

Loss of HMW1 and HMW3 in noncytadhering mutants of Mycoplasma pneumoniae occurs post-translationally

Popham, Phillip L., Hahn, Tae-Wook, Krebes, Kathleen A., Krause, Duncan C.

The genomic sequence of Mycoplasma pneumoniae establish this cell-wall-less prokaryote as among the smallest known microorganisms capable of self-replication. However, this genomic simplicity and...

Mycoplasma pneumoniae Protein P30 Is Required for Cytadherence and Associated with Proper Cell Development

Romero-Arroyo, Cynthia E., Jordan, Jarrat, Peacock, Susan J., Willby, Melisa J., Farmer, Mark A., Krause, Duncan C.

The attachment organelle of Mycoplasma pneumoniae is a polar, tapered cell extension containing an intracytoplasmic, electron-dense core. This terminal structure is the leading end in gliding...

Identification and Complementation of Frameshift Mutations Associated with Loss of Cytadherence in Mycoplasma pneumoniae

Fisseha, Makda, Göhlmann, Hinrich W. H., Herrmann, Richard, Krause, Duncan C.

Mycoplasma pneumoniae cytadherence is mediated by a specialized, polar attachment organelle. Certain spontaneously arising cytadherence mutants (designated class I) lack HMW2, fail to localize the...

Transcriptional Analysis of the hmw Gene Cluster of Mycoplasma pneumoniae

Waldo, Robert H., Popham, Phillip L., Romero-Arroyo, Cynthia E., Mothershed, Elizabeth A., Lee, Kyungok K., Krause, Duncan C.

Mycoplasma pneumoniae adherence to host cells is a multifactorial process that requires the cytadhesin P1 and additional accessory proteins. The hmw gene cluster consists of the genes p30, hmw3, and...

Stability of Mycoplasma pneumoniae Cytadherence-Accessory Protein HMW1 Correlates with Its Association with the Triton Shell

Balish, Mitchell F., Hahn, Tae-Wook, Popham, Phillip L., Krause, Duncan C.

Mycoplasma pneumoniae adsorbs to host respiratory epithelium primarily by its attachment organelle, the proper function of which depends upon mycoplasma adhesin and cytoskeletal proteins. Among the...

Stability and Subcellular Localization of Cytadherence-Associated Protein P65 in Mycoplasma pneumoniae

Jordan, Jarrat L., Berry, Karen M., Balish, Mitchell F., Krause, Duncan C.

The surface protein P65 is a constituent of the Mycoplasma pneumoniae cytoskeleton and is present at reduced levels in mutants lacking the cytadherence accessory protein HMW2. Pulse-chase studies...

HMW1 Is Required for Cytadhesin P1 Trafficking to the Attachment Organelle in Mycoplasma pneumoniae

Hahn, Tae-Wook, Willby, Melisa J., Krause, Duncan C.

Mycoplasma pneumoniae proteins HMW1-HMW3 collectively are essential for cytadherence, but the function or requirement for each has not been defined. Cytadherence mutant M6 lacks HMW1 because of a...

Bartonella henselae Invasion of Feline Erythrocytes In Vitro

Mehock, Jane R., Greene, Craig E., Gherardini, Frank C., Hahn, Tae-Wook, Krause, Duncan C.

Bartonella henselae, the causative agent of cat scratch disease, establishes long-term bacteremia in cats, in which it attaches to and invades feline erythrocytes (RBC). Feline RBC invasion was...

Characterization of a Mycoplasma pneumoniae hmw3 Mutant: Implications for Attachment Organelle Assembly

Willby, Melisa J., Krause, Duncan C.

The proteins required for adherence of the pathogen Mycoplasma pneumoniae to host respiratory epithelial cells are localized to a polar structure, the attachment organelle. A number of these proteins...

Reacquisition of Specific Proteins Confers Virulence in Mycoplasma pneumoniae

Krause, Duncan C., Leith, Debra K., Baseman, Joel B.

Hemadsorbing revertants were isolated from spontaneous hemadsorption-negative, avirulent mutants of Mycoplasma pneumoniae. The revertants simultaneously reacquired specific proteins absent in their...

Inhibition of Mycoplasma pneumoniae Hemadsorption and Adherence to Respiratory Epithelium by Antibodies to a Membrane Protein

Krause, Duncan C., Baseman, Joel B.

Antiserum and purified immunoglobulin directed against Mycoplasma pneumoniae membrane protein P1 were examined for their influence on mycoplasma viability, metabolism, and cytadsorption. Anti-P1...

Predominant Outer Membrane Antigens of Bartonella henselae

Chenoweth, Matthew R., Greene, Craig E., Krause, Duncan C., Gherardini, Frank C.

A hallmark of Bartonella henselae is persistent bacteremia in cats despite the presence of a vigorous host immune response. To understand better the long-term survival of B. henselae in cats, we...

HMW1 Is Required for Stability and Localization of HMW2 to the Attachment Organelle of Mycoplasma pneumoniae

Willby, Melisa J., Balish, Mitchell F., Ross, Stephanie M., Lee, Kyungok K., Jordan, Jarrat L., Krause, Duncan C.

The cytoskeletal proteins HMW1 and HMW2 are components of the terminal organelle of the cell wall-less bacterium Mycoplasma pneumoniae. HMW1 is required for a tapered, filamentous morphology but...

Identification and Complementation of a Mutation Associated with Loss of Mycoplasma pneumoniae Virulence-Specific Proteins B and C

Waldo, Robert H., Jordan, Jarrat L., Krause, Duncan C.

A mutation in gene MPN142 (orf6) was identified in the Mycoplasma pneumoniae cytadherence mutant III-4. MPN142 encodes virulence-specific proteins P90 and P40 (proteins B and C, respectively)....

Mutant Analysis Reveals a Specific Requirement for Protein P30 in Mycoplasma pneumoniae Gliding Motility

Hasselbring, Benjamin M., Jordan, Jarrat L., Krause, Duncan C.

The cell-wall-less prokaryote Mycoplasma pneumoniae, long considered among the smallest and simplest cells capable of self-replication, has a distinct cellular polarity characterized by the presence...

Synthesis, Stability, and Function of Cytadhesin P1 and Accessory Protein B/C Complex of Mycoplasma pneumoniae

Waldo, Robert H., Krause, Duncan C.

The genes MPN141 and MPN142 encode the major adhesin P1 and the cytadherence-related B/C proteins (P90/P40), respectively, in Mycoplasma pneumoniae. Using reverse transcriptase PCR we found open...

Loss of HMW1 and HMW3 in noncytadhering mutants of Mycoplasma pneumoniae occurs post-translationally

Popham, Phillip L., Hahn, Tae-Wook, Krebes, Kathleen A., Krause, Duncan C.

The genomic sequence of Mycoplasma pneumoniae establish this cell-wall-less prokaryote as among the smallest known microorganisms capable of self-replication. However, this genomic simplicity and...

Mycoplasma pneumoniae Protein P30 Is Required for Cytadherence and Associated with Proper Cell Development

Romero-Arroyo, Cynthia E., Jordan, Jarrat, Peacock, Susan J., Willby, Melisa J., Farmer, Mark A., Krause, Duncan C.

The attachment organelle of Mycoplasma pneumoniae is a polar, tapered cell extension containing an intracytoplasmic, electron-dense core. This terminal structure is the leading end in gliding...

Identification and Complementation of Frameshift Mutations Associated with Loss of Cytadherence in Mycoplasma pneumoniae

Fisseha, Makda, Göhlmann, Hinrich W. H., Herrmann, Richard, Krause, Duncan C.

Mycoplasma pneumoniae cytadherence is mediated by a specialized, polar attachment organelle. Certain spontaneously arising cytadherence mutants (designated class I) lack HMW2, fail to localize the...

Transcriptional Analysis of the hmw Gene Cluster of Mycoplasma pneumoniae

Waldo, Robert H., Popham, Phillip L., Romero-Arroyo, Cynthia E., Mothershed, Elizabeth A., Lee, Kyungok K., Krause, Duncan C.

Mycoplasma pneumoniae adherence to host cells is a multifactorial process that requires the cytadhesin P1 and additional accessory proteins. The hmw gene cluster consists of the genes p30, hmw3, and...

Stability of Mycoplasma pneumoniae Cytadherence-Accessory Protein HMW1 Correlates with Its Association with the Triton Shell

Balish, Mitchell F., Hahn, Tae-Wook, Popham, Phillip L., Krause, Duncan C.

Mycoplasma pneumoniae adsorbs to host respiratory epithelium primarily by its attachment organelle, the proper function of which depends upon mycoplasma adhesin and cytoskeletal proteins. Among the...

Stability and Subcellular Localization of Cytadherence-Associated Protein P65 in Mycoplasma pneumoniae

Jordan, Jarrat L., Berry, Karen M., Balish, Mitchell F., Krause, Duncan C.

The surface protein P65 is a constituent of the Mycoplasma pneumoniae cytoskeleton and is present at reduced levels in mutants lacking the cytadherence accessory protein HMW2. Pulse-chase studies...

HMW1 Is Required for Cytadhesin P1 Trafficking to the Attachment Organelle in Mycoplasma pneumoniae

Hahn, Tae-Wook, Willby, Melisa J., Krause, Duncan C.

Mycoplasma pneumoniae proteins HMW1-HMW3 collectively are essential for cytadherence, but the function or requirement for each has not been defined. Cytadherence mutant M6 lacks HMW1 because of a...

Bartonella henselae Invasion of Feline Erythrocytes In Vitro

Mehock, Jane R., Greene, Craig E., Gherardini, Frank C., Hahn, Tae-Wook, Krause, Duncan C.

Bartonella henselae, the causative agent of cat scratch disease, establishes long-term bacteremia in cats, in which it attaches to and invades feline erythrocytes (RBC). Feline RBC invasion was...

Characterization of a Mycoplasma pneumoniae hmw3 Mutant: Implications for Attachment Organelle Assembly

Willby, Melisa J., Krause, Duncan C.

The proteins required for adherence of the pathogen Mycoplasma pneumoniae to host respiratory epithelial cells are localized to a polar structure, the attachment organelle. A number of these proteins...

Reacquisition of Specific Proteins Confers Virulence in Mycoplasma pneumoniae

Krause, Duncan C., Leith, Debra K., Baseman, Joel B.

Hemadsorbing revertants were isolated from spontaneous hemadsorption-negative, avirulent mutants of Mycoplasma pneumoniae. The revertants simultaneously reacquired specific proteins absent in their...

Inhibition of Mycoplasma pneumoniae Hemadsorption and Adherence to Respiratory Epithelium by Antibodies to a Membrane Protein

Krause, Duncan C., Baseman, Joel B.

Antiserum and purified immunoglobulin directed against Mycoplasma pneumoniae membrane protein P1 were examined for their influence on mycoplasma viability, metabolism, and cytadsorption. Anti-P1...

Predominant Outer Membrane Antigens of Bartonella henselae

Chenoweth, Matthew R., Greene, Craig E., Krause, Duncan C., Gherardini, Frank C.

A hallmark of Bartonella henselae is persistent bacteremia in cats despite the presence of a vigorous host immune response. To understand better the long-term survival of B. henselae in cats, we...

HMW1 Is Required for Stability and Localization of HMW2 to the Attachment Organelle of Mycoplasma pneumoniae

Willby, Melisa J., Balish, Mitchell F., Ross, Stephanie M., Lee, Kyungok K., Jordan, Jarrat L., Krause, Duncan C.

The cytoskeletal proteins HMW1 and HMW2 are components of the terminal organelle of the cell wall-less bacterium Mycoplasma pneumoniae. HMW1 is required for a tapered, filamentous morphology but...

Identification and Complementation of a Mutation Associated with Loss of Mycoplasma pneumoniae Virulence-Specific Proteins B and C

Waldo, Robert H., Jordan, Jarrat L., Krause, Duncan C.

A mutation in gene MPN142 (orf6) was identified in the Mycoplasma pneumoniae cytadherence mutant III-4. MPN142 encodes virulence-specific proteins P90 and P40 (proteins B and C, respectively)....

Mutant Analysis Reveals a Specific Requirement for Protein P30 in Mycoplasma pneumoniae Gliding Motility

Hasselbring, Benjamin M., Jordan, Jarrat L., Krause, Duncan C.

The cell-wall-less prokaryote Mycoplasma pneumoniae, long considered among the smallest and simplest cells capable of self-replication, has a distinct cellular polarity characterized by the presence...

Synthesis, Stability, and Function of Cytadhesin P1 and Accessory Protein B/C Complex of Mycoplasma pneumoniae

Waldo, Robert H., Krause, Duncan C.

The genes MPN141 and MPN142 encode the major adhesin P1 and the cytadherence-related B/C proteins (P90/P40), respectively, in Mycoplasma pneumoniae. Using reverse transcriptase PCR we found open...

Transposon Mutagenesis Identifies Genes Associated with Mycoplasma pneumoniae Gliding Motility

Hasselbring, Benjamin M., Page, Clinton A., Sheppard, Edward S., Krause, Duncan C.

The wall-less prokaryote Mycoplasma pneumoniae, a common cause of chronic respiratory tract infections in humans, is considered to be among the smallest and simplest known cells capable of...

Terminal organelle development in the cell wall-less bacterium Mycoplasma pneumoniae

Hasselbring, Benjamin M., Jordan, Jarrat L., Krause, Robert W., Krause, Duncan C.

Mycoplasmas are cell wall-less bacteria considered among the smallest and simplest prokaryotes known, and yet several species including Mycoplasma pneumoniae have a remarkably complex cellular...

Protein P200 Is Dispensable for Mycoplasma pneumoniae Hemadsorption but Not Gliding Motility or Colonization of Differentiated Bronchial Epithelium▿

Jordan, Jarrat L., Chang, How-Yi, Balish, Mitchell F., Holt, Lynley S., Bose, Stephanie R., Hasselbring, Benjamin M., ...

Mycoplasma pneumoniae protein P200 was localized to the terminal organelle, which functions in cytadherence and gliding motility. The loss of P200 had no impact on binding to erythrocytes and A549...

Proteins P24 and P41 Function in the Regulation of Terminal-Organelle Development and Gliding Motility in Mycoplasma pneumoniae▿

Hasselbring, Benjamin M., Krause, Duncan C.

Mycoplasma pneumoniae is a major cause of bronchitis and atypical pneumonia in humans. This cell wall-less bacterium has a complex terminal organelle that functions in cytadherence and gliding...