Electron micrographs of bacteriophage T4.

Slides:

Advertisements

Similar presentations

Bacterial viruses. Very complex shape, requiring 20 gene products for assembly - Capsid (head), contains linear dsDNA genome - Tail, consists of sheath.

Advertisements

An Introduction to the Viruses Non-Living Etiologies

Electron microscopy of C. albicans cell wall.

Inferring chromatin organization.

Increase in biologically effective UV irradiance (biologically effective dose) with decreasing simulated ozone column thickness as measured by the spore.

Screenshot of JCVI's Advanced Reference Viewer ( jcvi

Negative stain of an enveloped virus with such short surface projections that they are not often visible in negative stains (rubella virus); the nucleocapsids.

Scanning electron micrographs of P. fluorescens biofilms.

Frequency of inactivated spores of B

Shielding of bacterial spores against galactic cosmic radiation by meteorite material. Shielding of bacterial spores against galactic cosmic radiation.

Allosteric site of B. subtilis PRPP synthase.

Fully differentiated human colon cancer T84 cell line expressing the structural and functional characteristics of colonic cells. Fully differentiated human.

Cross-section of a spore of B. subtilis.

The microsporidian sex-related locus.

Biochemical function of PRPP

Solar spectrum in space (thin line) and on Earth's surface (thick line). Solar spectrum in space (thin line) and on Earth's surface (thick line). Below.

Human ARDS. Photomicrographs from the lungs of 2 different patients with ARDS, stained with hematoxylin and eosin (H&E) are shown. Human ARDS. Photomicrographs.

Phylogenetic analysis of PurR from low-GC Gram-positive bacteria.

Possible secondary structure of the S. enterica prs leader.

Phylogenetic tree showing generic and species positions based on Bayesian analysis of the nuclear ribosomal DNA 28S region (1,200 bp) of Schistosomatidae.

Alignments of the complete genome sequences of the B

CTL killing and hepatocyte replacement.

What is it? By Sandy Decker

The parental nondifferentiated ileocecal adenocarcinoma HCT-8 cell line and fully differentiated HCT8-MTX cells. The parental nondifferentiated ileocecal.

Structures of hydrophobic signaling molecules produced by diatoms and bacteria. Structures of hydrophobic signaling molecules produced by diatoms and bacteria.

(A) Scanning electron micrograph of bacteria on the surface of a corn (Z. mays) leaf. (A) Scanning electron micrograph of bacteria on the surface of a.

Summary of major events in Earth history relating to the appearance of eukaryotic groups and the appearance of O2 in the atmosphere and in marine environments.

Stages in the enzymatic dissection of mimivirus, which infects protozoans and is the largest virus known. Stages in the enzymatic dissection of mimivirus,

Structures of P. aeruginosa ExoU and its chaperone, SpcU (PDB ID 3TU3), shown as a cartoon. Structures of P. aeruginosa ExoU and its chaperone, SpcU (PDB.

Electron micrograph of negatively stained protofilaments assembled in vitro from E. coli FtsZ (1 μM FtsZ, 50 mM MES [morpholineethanesulfonic acid] [pH.

Schematic representation of the hydrolysis of amorphous and microcrystalline cellulose by noncomplexed (A) and complexed (B) cellulase systems. Schematic.

Hector H. García et al. Clin. Microbiol. Rev. 2002; doi: /CMR

UV resistance of spores and vegetative cells of B

Physiological in vitro model for the study of host-microbiome interactions in BV. Transmission electron microscopy illustrates human vaginal epithelial.

Scheme for recovery of viral nucleic acid from microarray spots.

Protein structures of various PFT classes.

Extreme resistance of D

SMase cleavage sites in sphingomyelin and cellular activities of the reaction products. SMase cleavage sites in sphingomyelin and cellular activities of.

Physiological effects of heat shock.

Diagram of the relationship between the T4 transcriptional pattern and the different mechanisms of DNA replication and recombination. Diagram of the relationship.

Prophage genome map of the C. diphtheriae prophage encoding DT

Schematics depicting a stylized cross section of dark ocean habitats (top; adapted from reference 259 by permission of Macmillan Publishers Ltd., copyright.

Roberta B. Carey et al. Clin. Microbiol. Rev. 2018; doi: /CMR

Molecular models for module exchange between phages.

Photographs of representative sediment habitats in the dark ocean.

MEED exposure facility mounted on the camera beam of the lunar orbiter of the Apollo 16 mission (A) and sample cuvette for exposing dry layers of microorganisms.

Structure of an exporter.

Binding of mRNA to the 30S ribosomal subunit.

(A) T. vaginalis parasite as seen in broth culture.

Concerted model for maltose transport.

Mechanisms of XRV and ERV transmission.

General scheme of the events triggered by C

Linear relationship between the dose of ionizing radiation and, from top to bottom, the extent of DNA degradation and the delay in DNA synthesis. Linear.

Absorption spectra of PRs in relation to light attenuation patterns in different marine environments. Absorption spectra of PRs in relation to light attenuation.

Thermodynamic cycle for ligand binding to a periplasmic-BP.

Integron structure and gene capture mechanism.

(A to E) Scanning electron micrographs of S

Model of transition to extant bipolar systems from an ancestral tetrapolar system in basidiomycete MAT loci. Model of transition to extant bipolar systems.

Intrastrand biases (nucleotide skew) in the T4 genome.

General overview of the bioinformatic pipelines for the 16S rRNA gene microbial profiling and shotgun metagenomics. General overview of the bioinformatic.

Mono-ADP-ribosylation cycle and the corresponding products of protein mono-ADP-ribosylation. Mono-ADP-ribosylation cycle and the corresponding products.

Surface expression of cell wall proteins.

Repair kinetics of radiation-induced DNA damage under microgravity conditions. Repair kinetics of radiation-induced DNA damage under microgravity conditions.

Diagrammatic representation of individual cnidarian host gastrodermal cells with resident symbionts. Diagrammatic representation of individual cnidarian.

Sequence alignment of colicin lysis proteins.

(A) Crystal structure of the monomer of PGI/PMI from Pyb

Acquisition of global regulators during the evolution of streptomycetes. Acquisition of global regulators during the evolution of streptomycetes. The multilocus.

Transmission electron micrographs of epithelial respiratory cells exposed to S. maltophilia CF 1 (A) and NCF 13 (B) for 3 h. Transmission electron micrographs.

Structure of an ATP-bound ABC dimer.

Actin tails formed by Rickettsia spp.

Presentation transcript:

Electron micrographs of bacteriophage T4. Electron micrographs of bacteriophage T4. The well-recognized T4 morphology was nature's prototype of the NASA lunar excursion module. (A) Extended tail fibers recognize the bacterial envelope, and its prolate icosahedral head contains the 168,903-bp dsDNA genome. Reprinted with permission of M. Wurtz, Biozentrum, Basel, Switzerland. (B) The DNA genome is delivered into the host through the internal tail tube, which is visible protruding from the end of the contracted tail sheath. Courtesy of W. Rüger. Eric S. Miller et al. Microbiol. Mol. Biol. Rev. 2003; doi:10.1128/MMBR.67.1.86-156.2003