A novel chitin-binding protein from the vestimentiferan Riftia pachyptila interacts specifically with beta-chitin. Cloning, expression, and characterization.

A cDNA from Riftia pachyptila was cloned. It encodes a novel 21.3-kDa protein from the worm protective tube, named RCBP (for Riftia chitin-binding protein).

Characterization of a cDNA encoding RP43, a CUB-domain-containing protein from the tube of Riftia pachyptila (Vestimentifera), and distribution of its transcript.

A major 43 kDa protein from the protective tube of Riftia pachyptila (Vestimentifera), named RP43, was partly microsequenced after isolation by SDS/PAGE from the protein fraction of tubes collected around the hydrothermal vents at the East Pacific Rise. On the basis of the partial peptide sequences obtained, experiments using reverse-transcriptase-mediated PCR and rapid amplification of cDNA ends led to the complete cDNA sequence. Analysis of deduced amino acid sequence of RP43 showed the presence of CUB domains (100-110-residue-spanning domains first reported in the complement subcomponents C1r/C1s, epidermal-growth-factor-related sea urchin protein and bone morphogenetic protein 1) that seem to be involved in protein-protein and glycosaminoglycan-protein interactions.

MR imaging diagnosis of triangular fibrocartilage pathology with arthroscopic correlation.

Objective: The goal of this study was to compare MR imaging with arthroscopy in evaluating triangular fibrocartilage (TFC) pathology.

Materials And Methods: The results of 178 MR imaging examinations of the wrist were independently reviewed by two musculoskeletal radiologists who were unaware of the the clinical history, including any subsequent surgery. One hundred forty-nine of these studies were obtained from symptomatic patients.

MR imaging interpretation of the Palmer classification of triangular fibrocartilage complex lesions.

The triangular fibrocartilage complex (TFCC) is a complex anatomic and biomechanical structure. Injury to the TFCC is a recognized cause of ulnar wrist pain. The TFCC may be injured in its horizontal portion, in its peripheral portions, or at its attachments.

Ulnar collateral ligament of the thumb: MR findings in cadavers, volunteers, and patients with ligamentous injury (gamekeeper's thumb).

Objective: The ulnar collateral ligament bridges the ulnar aspect of the first metacarpal and the proximal phalanx and functions as a major stabilizer of the first metacarpophalangeal joint. Acute or chronic injury of this ligament is referred to as gamekeeper's thumb. The objectives of this study were to (1) determine the MR appearance of the ulnar collateral ligament of the thumb in cadavers and volunteers and (2) analyze the MR findings in patients with gamekeeper's thumb, especially with regard to the value of MR in detecting clinically significant displacement of the ligament (Stener lesion).