P-domains as shuffled cysteine-rich modules in integumentary mucin C.1 (FIM-C.1) from Xenopus laevis. Polydispersity and genetic polymorphism
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A new frog integumentary mucin (FIM-C.1) has been discovered by molecular cloning. This mucin contains at least six typical P-domains as cysteine-rich modules. Shuffled P-domains have previously been detected in FIM-A.1, and they also form the basis of various P-domain peptides, which presumably have growth-modulating activities. Furthermore, FIM-C.1 contains at least three threonine-rich clusters, which consist of semi-repetitive cassettes. Various polydisperse transcripts have been characterized. They originate from two genes only and differ by deletions/insertions that are congruent with the semi-repetitive cassettes. Thus, polydispersities are probably generated by alternative splicing. Southern analysis revealed genetic polymorphism between different individuals. Furthermore, a specific antiserum was generated against a synthetic peptide deduced from the COOH-terminal end of FIM-C.1 and used for Western analysis.
Original language | English |
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Journal | The Journal of Biological Chemistry |
Volume | 267 |
Issue number | 34 |
Pages (from-to) | 24620-4 |
Number of pages | 5 |
ISSN | 0021-9258 |
Publication status | Published - 5 Dec 1992 |
- Amino Acid Sequence, Animals, Base Sequence, Cloning, Molecular, Codon/genetics, Cysteine, Molecular Sequence Data, Mucins/genetics, Oligodeoxyribonucleotides, Polymerase Chain Reaction, Polymorphism, Genetic, Restriction Mapping, Sequence Deletion, Sequence Homology, Amino Acid, Templates, Genetic, Xenopus Proteins, Xenopus laevis
Research areas
ID: 347885984