title: The first intron of human c-fms proto-oncogene contains a processed pseudogene (RPL7P) for ribosomal protein L7.
abstract: During sequence analysis of the first intron of the human c-fms oncogene, we identified an open reading frame encoding the ribosomal protein L7 (RPL7). The presence of this sequence within intron 1 of the c-fms gene was confirmed by Southern blot hybridization and by sequence analysis of two independent cosmid clones (cos2-e and cos1-22) that span the human genomic c-fms locus. The RPL7 sequence was detected in a region of sequence overlapped by the cos2-e and cos1-22 cosmid clones but oriented opposite to the c-fms gene. We demonstrated that the sequence is identical to the full-length RPL7 cDNA sequence, but lacks any recognizable introns, has a 30-bp poly(A) tail, and is bracketed by two perfect direct repeats of 14 bp. We also showed that despite the fact that the 5' flanking region of the RPL7 sequence contains a potential TATA box upstream of an intact open reading frame, this pseudogene (RPL7P) is not actively transcribed.
authors.affiliation: Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut 06510.
authors.forename: E
authors.initials: E
authors.lastname: Sapi
authors.forename: M B
authors.initials: MB
authors.lastname: Flick
authors.forename: B M
authors.initials: BM
authors.lastname: Kacinski
mesh_terms: D001483:Base Sequence; D002352:Carrier Proteins / Q000235:genetics; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D003360:Cosmids / Q000235:genetics; D016207:Cytokines / Q000235:genetics; D018076:DNA, Complementary / Q000235:genetics; D016236:Genes, fms; D006801:Humans; D007438:Introns; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D000090063:Proto-Oncogene Mas; D011544:Pseudogenes; D012323:RNA Processing, Post-Transcriptional; D012091:Repetitive Sequences, Nucleic Acid; D012269:Ribosomal Proteins / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid; D016385:TATA Box / Q000235:genetics
chemical_list: D002352:Carrier Proteins; D016207:Cytokines; D018076:DNA, Complementary; C000715470:MAS1 protein, human; D000090063:Proto-Oncogene Mas; C053634:RPL7 protein, human; D012269:Ribosomal Proteins; C066845:pleiotrophin