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The multiple endocrine neoplasia type 1 (MEN1) locus has been previously localised to 11q13 by combined tumour deletion mapping and linkage studies and a 3.8-cM region flanked by PYGM and D11S97 has been defined. The zinc finger in the MEN1 locus (ZFM1) gene, which has also been mapped to this region, represents a candidate gene for MEN1. The ZFM1 gene, which consists of 14 exons, encodes a 623-amino acid protein and exons 2, 8 and 12 encode the putative nuclear localisation signal, a zinc finger motif, and a proline-rich region, respectively. We have investigated these potentially functional regions for germ-line mutations by single-stranded conformational polymorphism (SSCP) analysis in 64 unrelated MEN1 patients. In addition, we performed DNA sequence analysis of all the 14 exons and 13 of the 26 exon-intron boundaries in four unrelated MEN1 patients. A 6-bp deletion that resulted in the loss of two proline residues at codons 479 and 480 in exon 12 was found in one MEN1 patient. However, this did not co-segregate with MEN1 in the family and represented a rare polymorphism. Analysis by SSCP, DNA sequencing, northern blotting, Southern blotting and pulsed field gel electrophoresis revealed no additional genetic abnormalities of ZFM1 in the other MEN1 patients. Thus, our results indicate that ZFM1 is excluded as a candidate gene for MEN1.


Journal article


Hum Genet

Publication Date





585 - 589


Amino Acid Sequence, Base Sequence, Carrier Proteins, Chromosome Mapping, Chromosomes, Human, Pair 11, DNA, DNA Primers, DNA-Binding Proteins, Exons, Gene Deletion, Genetic Linkage, Genetic Markers, Humans, Introns, Leukocytes, Multiple Endocrine Neoplasia Type 1, Nuclear Proteins, Polymerase Chain Reaction, RNA Splicing Factors, Transcription Factors, Transcription, Genetic