Results
author = "Learn, G H"
1
Found 9 documents, displaying page 1 of 1
Rates and patterns of chloroplast DNA evolution.
Description :
The chloroplast genome (cpDNA) of plants has been a focus of research in plant molecular evolution and systematics. Several features of this genome have facilitated molecular evolutionary analyses. First, the genome is small and constitutes an abundant component of cellular DNA. Second, the chloropl...
Repository :
Europe PubMed Central
Language(s) :
English
Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon.
Description :
The identity of the oldest lineage of monocotyledons is a subject of debate. Alternative interpretations of morphological homologies are variously consistent with proposals that species of Alismatanae, Dioscoreales, or Melanthiales were the earliest descendants of the first monocotyledons. We presen...
Repository :
Europe PubMed Central
Language(s) :
English
A gene for tRNA-Ile(CAU) from chloroplasts of a monocot, Pennisetum americanum.
Description :
Repository :
Europe PubMed Central
Language(s) :
English
Intrapatient sequence variation of the gag gene of human immunodeficiency virus type 1 plasma virions.
Description :
Because certain regions of the gag gene, such as p24, are highly conserved among human immunodeficiency virus (HIV) isolates, many therapeutic strategies have been directed at gag gene targets. Although intrapatient variation of segments of gag have been determined, little is known about the variabi...
Repository :
Europe PubMed Central
Language(s) :
English
Evolution of the chalcone synthase gene family in the genus Ipomoea.
Description :
The evolution of the chalcone synthase [CHS; malonyl-CoA:4-coumaroyl-CoA malonyltransferase (cyclizing), EC 2.3.1.74] multigene family in the genus Ipomoea is explored. Thirteen CHS genes from seven Ipomoea species (family Convolvulaceae) were sequenced--three from genomic clones and the remainder f...
Repository :
Europe PubMed Central
Language(s) :
English
Maintaining the integrity of human immunodeficiency virus sequence databases.
Description :
Human immunodeficiency virus type 1 (HIV-1) sequences are accumulating in the literature at a rapid pace. For this ever-expanding resource to be maximally useful, it is critical that researchers strive to maintain a high level of quality assurance, both in experimental design and conduct and in anal...
Repository :
Europe PubMed Central
Language(s) :
English
Mother-to-infant transmission of human immunodeficiency virus type 1 involving five envelope sequence subtypes.
Author(s) :
Contag, C H
,
Ehrnst, A
,
Duda, J
,
Bohlin, A B
,
Lindgren, S
,
Learn, G H
,
Mullins, J I
Description :
Genetic analysis of human immunodeficiency virus type 1 (HIV-1) from cases of mother-to-infant transmission were analyzed in an effort to provide insights into the viral selection that may occur during transmission, as well as the timing and source of transmitted viruses. HIV-1 env genes obtained fr...
Repository :
Europe PubMed Central
Language(s) :
English
Genetic diversity of feline immunodeficiency virus: dual infection, recombination, and distinct evolutionary rates among envelope sequence clades.
Author(s) :
Bachmann, M H
,
Mathiason-Dubard, C
,
Learn, G H
,
Rodrigo, A G
,
Sodora, D L
,
Mazzetti, P
,
Hoover, E A
,
Mullins, J I
Description :
For the rapid genetic analysis of feline immunodeficiency virus (FIV), we developed a heteroduplex mobility assay (HMA) that utilizes a PCR-amplified fragment of the FIV envelope gene spanning the third and fourth variable regions of the envelope surface protein coding sequence. Viral sequences were...
Repository :
Europe PubMed Central
Language(s) :
English
Human Immunodeficiency Virus Type 1 Subtype B Ancestral Envelope Protein Is Functional and Elicits Neutralizing Antibodies in Rabbits Similar to Those Elicited by a Circulating Subtype B Envelope
Author(s) :
Doria-Rose, N. A.
,
Learn, G. H.
,
Rodrigo, A. G.
,
Nickle, D. C.
,
Li, F.
,
Mahalanabis, M.
,
Hensel, M. T.
,
McLaughlin, S.
Description :
Human immunodeficiency virus type 1 (HIV-1) is a difficult target for vaccine development, in part because of its ever-expanding genetic diversity and attendant capacity to escape immunologic recognition. Vaccine efficacy might be improved by maximizing immunogen antigenic similarity to viruses like...
Repository :
Europe PubMed Central
Language(s) :
English
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Found 9 documents, displaying page 1 of 1