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Biomedical subjects

R W Hendrix

Publications and source records attributed to R W Hendrix.

97 records · Page 6Linked to original sources
PubMed1974

Protein fusion: a novel reaction in bacteriophage lambda head assembly.

Parts of two phage-coded head proteins, pE and pC, become fused during bacteriophage lambda head assembly. pE is the main structural component of lambda heads and pC is a minor head protein that is not found as such in mature heads. The bond joining the two proteins appears to be covalent and is not a disulfide bond. Only a specific subset of the sequences of each protein is found in the fusion products, and these sequences are found in the products in equimolar amounts. Two nearly identical fusion products; X1 and X2, are detected; X2 is slightly smaller than X1 and appears to be a proteolytic cleavage product of X1. The fusion reaction probably takes place on a nascent head structure.

Autoradiography↗
PubMedDate not supplied

Evolution: the long evolutionary reach of viruses.

The structure of a phage capsid protein provides good evidence this phage shares ancestry with an animal virus. In this and similar cases, either the viral lineages predate the emergence of the three contemporary domains of life, or viruses have been leaping the phylogenetic chasms that separate the domains.

Animals↗
PubMedDate not supplied

The ultrasonographic characterization of tendons.

Ultrasonography has not been utilized in the diagnosis of musculoskeletal disorders. However, the superficial location of tendons and ligaments lend themselves to evaluation by this modality. The ultrasonographic characteristics of the normal Achilles tendon are described in both the rabbit and man. The characteristic ultrasonographic findings after injury to the Achilles tendon are also determined. This imaging technique provides a sharp definition of the tendon and surrounding structures and easily demonstrates abnormalities. The superficially located quadriceps tendon is also well visualized by ultrasound and representative examples are shown. Ultrasound should be considered as another useful method for evaluation of these superficial musculoskeletal structures.

Achilles Tendon↗