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EMBO J. 1985 Dec 16;4(13A):3393-8.

Identification of a putative cell adhesion domain of uvomorulin.

Abstract

A rat monoclonal antibody (DECMA-1) selected against the murine cell adhesion molecule uvomorulin blocks both the aggregation of mouse embryonal carcinoma cells and the compaction of pre-implantation embryos. However, decompacted embryos eventually become recompacted in the presence of DECMA-1 and form blastocysts composed of both trophectoderm and inner cell mass. DECMA-1 also disrupts confluent monolayers of Madin-Darby canine kidney (MDCK) epithelial cells. DECMA-1 recognizes uvomorulin in extracts from mouse and dog tissues. Protease digestion of mouse and dog uvomorulin generated core fragments including one of 26 kd which reacted with DECMA-1. The same 26-kd fragment is recognized by anti-uvomorulin monoclonal antibodies which have been obtained from other laboratories and which dissociate MDCK cell monolayers and block the formation of the epithelial occluding barrier. This 26-kd fragment therefore seems to be involved in the adhesive function of uvomorulin.

PMID:
2419126
PMCID:
PMC554675
[Indexed for MEDLINE]
Free PMC Article

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