title: Sequence analysis of cDNA encoding follicle-stimulating hormone and luteinizing hormone beta-subunits in the Mastomys (Praomys coucha).
abstract: To examine the molecular basis of efficient superovulation in the Mastomys (Praomys coucha), the cDNA sequences of the follicle-stimulating hormone (FSH) and luteinizing hormone (LH) beta-subunits were determined and compared with those of other mammals. FSHbeta and LHbeta cDNAs were 1606 and 513 bp long, respectively, from the 5'-ends to the putative polyA sites. The deduced sequences of the FSHbeta and LHbeta precursor proteins were 130 and 141 amino acids in length, respectively. The amino acid sequences of both mastomys hormone subunits showed overall similarity to those of other rodents. In particular, the N-terminus of the FSHbeta precursor protein is of the MM-type, like those of mice and rats, which suggests that the MM-type is characteristic of the subfamily Murinae. As we reported earlier for the Mongolian gerbil, the use of hCG for superovulation of mastomys might need to be re-evaluated, due to the low homology between hCG and rodent LH sequences.
authors.affiliation: Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
authors.forename: Kaoru
authors.initials: K
authors.lastname: Takano
authors.forename: Minako
authors.initials: M
authors.lastname: Koura
authors.forename: Yoko
authors.initials: Y
authors.lastname: Noguchi
authors.forename: Yoshie
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Kozue
authors.initials: K
authors.lastname: Uchio-Yamada
authors.forename: Junichiro
authors.initials: J
authors.lastname: Matsuda
authors.forename: Osamu
authors.initials: O
authors.lastname: Suzuki
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D018076:DNA, Complementary / Q000302:isolation & purification; D037201:Follicle Stimulating Hormone, beta Subunit / Q000235:genetics*; D037101:Luteinizing Hormone, beta Subunit / Q000235:genetics*; D008969:Molecular Sequence Data; D009115:Muridae / Q000235:genetics*; D010060:Ovulation / Q000502:physiology; D017422:Sequence Analysis, DNA; D017385:Sequence Homology
chemical_list: D018076:DNA, Complementary; D037201:Follicle Stimulating Hormone, beta Subunit; D037101:Luteinizing Hormone, beta Subunit