Periodic expression of Sm proteins parallels formation of nuclear Cajal bodies and cytoplasmic snRNP-rich bodies.

Small nuclear ribonucleoproteins (snRNPs) play a fundamental role in pre-mRNA processing in the nucleus. The biogenesis of snRNPs involves a sequence of events that occurs in both the nucleus and cytoplasm. Despite the wealth of biochemical information about the cytoplasmic assembly of snRNPs, little is known about the spatial organization of snRNPs in the cytoplasm.

Calreticulin expression and localization in plant cells during pollen-pistil interactions.

In this report, the distributions of calreticulin (CRT) and its transcripts in Haemanthus pollen, pollen tubes, and somatic cells of the hollow pistil were studied. Immunoblot analysis of protein extracts from mature anthers, dry and germinated pollen, growing pollen tubes, and unpollinated/pollinated pistils revealed a strong expression of CRT. Both in vitro and in situ studies confirmed the presence of CRT mRNA and protein in pollen/pollen tubes and somatic cells of the pistil transmitting tract.

The butterfies' vertebra-diagnostic difficulties - case report.

The hemivertebras constitute about 33% of all congenital defects of spine and can be detected accidentally during diagnostics of pain syndrome of spine or other neurological disturbances. In the paper is introduced the case of patient with pain syndrome of spine (man, physical worker, 47years old), who was directed to the rehabilitation ward with recognition of pathologic fracture of vertebra Th10. In consideration on lack of correlation between radiological pictures and patient's neurological state the diagnostics was extended for 3D CT.