Raymond A. Popp

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The role of the 385 nucleotide 5' noncoding region (NCR) in the translation of the pestivirus genome was investigated. In vitro translation of an RNA transcript containing the 5' NCR of the bovine viral diarrhea virus (BVDV) genome followed by the coding sequence of the first gene product (p20) of the BVDV large open reading frame resulted in the synthesis(More)
A mutation that produces an absolute deficiency of normal beta-major globin polypeptides has been recovered from a DBA/2J male mouse. Most mice homozygous for the deficiency survived to adulthood and reproduced but were smaller at birth than their littermates and demonstrated a hypochromic, microcytic anemia with severe anisocytosis, poikilocytosis, and(More)
This study was designed to test the value of a multiparameter approach in evaluating perturbations in bone marrow and peripheral blood elements of mice exposed to ethylene oxide (EtO). Mice exposed to 255 ppm EtO for 5 h/d were removed for analysis after 1, 2, 8, and 14 d (sequential exposure) and 4, 6, 8, and 10 wk (5 d/wk). Prior to sacrifice, blood was(More)
Mice with a mutation at the Hbbs, beta-globin locus, were used to study the relative levels of beta-s2major (mutant) and beta-sminor globins specified by the mutant Hbbs2 haplotype during development. At 11.5 days of gestation, beta-sminor comprised over 80 percent and beta-s2major under 20 percent of the adult beta-globin. The relative level of beta-sminor(More)
Mice of the mutant haplotype (Hbbs2) produce a variant beta-s globin (beta-s2major) which can be distinguished from beta-smajor and beta-sminor by cellulose acetate electrophoresis and ion exchange chromatography. Mice homozygous for this mutation were used to study the relative quantities of the mutant beta-s2major and normal beta-sminor globins specified(More)
Identification and characterization of mutations that disrupt normal hematopoiesis are essential for understanding the genetic pathways that control the development and regulation of the mammalian hematopoietic system. Previously, the fitness 1 gene was identified by five, independent mutations in N-ethyl-N-nitrosourea (ENU) saturation mutagenesis(More)
Activity variants of the stomach and ocular isozyme of aldehyde dehydrogenase (AHD-4) were observed among inbred strains of mice. The phenotypes were inherited in a normal mendelian fashion, with two alleles showing codominant expression at a single locus (Ahd-4). Linkage data indicated that Ahd-4 is localized on chromosome 11 near Hba (alpha hemoglobin(More)
The amino acid sequence of blastokinin, also called uteroglobin, has been determined by a combined study of both the intact native molecule and the peptide fragments resulting from tryptic and chymotryptic digestions. Sequence analyses performed by automated methods and by sequential digestion with leucine aminopeptidase and carboxypeptidase Y demonstrate(More)