Nucleic Acids Research, 1980, Vol. 8, No. 10 2133-2146
© 1980
Articles |
Identification of recombinant phages containing sequences from different rat myosin heavy chain genes

*Departments of Cell Biology, The Weizmann Institute of Science Rehovot, Israel
Departments of Virology, The Weizmann Institute of Science Rehovot, Israel
Received April 1, 1980. The construction and identification of a recombinant plasmid containing a cDNA Insert which hybridizes specifically to myosin heavy chain mRNA is described. The plasmid was used as a probe to screen a rat genomic library for recombinant phages containing myosin heavy chain sequences. Six clones with approximately 15 k bp inserts each were isolated. Digestion with several restriction enzymes and hybridization of the fractionated DNA with the plasmid probe showed that the clones contained 3 different DNA inserts. Electron microscopy of a heteroduplex made by hybridization of DNA from two clones confirmed that the inserts originated in different genes. Hybridization of size-fractionated EcoR1 digested rat spleen DNA with the cloned probe suggested the existence of at least 5 myosin heavy chain genes.