Cloning by polymerase chain reaction of a new mouse TGF-beta, mTGF-beta 3.
Two TGF-beta s, TGF-beta 1 and 2, have previously been isolated from the mouse. Here we report the isolation of a murine TGF-beta 3 cDNA. RNAs extracted from 15-day-old mouse embryos and several mouse cell lines were reverse-transcribed. These cDNA mixtures were used as substrates for polymerase chain-reaction amplifications, using oligonucleotides designed on the basis of known human and chicken TGF-beta 3 sequences, including the initiation and stop codons. Several overlapping cDNAs containing either the amino-terminal domain or the carboxy-terminal domain, as well as the complete 1.2-kb coding region of the mouse TGF-beta 3 cDNA were obtained. The mouse TGF-beta 3 coding region is 1230 nucleotides long and codes for a 410 amino acid polypeptide very similar to its human counterpart. This cDNA hybridizes to a unique 3.5-kb RNA and is differentially expressed in various mouse tissues and at different embryonic stages.
Denhez
F
F
Laboratory of Chemoprevention, National Institute of Health, Bethesda, Maryland 20892.
Lafyatis
R
R
Kondaiah
P
P
Roberts
A B
AB
Sporn
M B
MB
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D002645:Chickens; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D005314:Embryonic and Fetal Development / Q000235:genetics; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D009928:Organ Specificity / Q000235:genetics; D016133:Polymerase Chain Reaction; D012689:Sequence Homology, Nucleic Acid; D013552:Swine; D016212:Transforming Growth Factor beta / Q000235:genetics*
D016212:Transforming Growth Factor beta; D004247:DNA