Life Sciences Commons^™

Mechanism Of Toxt-Dependent Transcriptional Activation At The Vibrio Cholerae Tcpa Promoter, Robin R. Hulbert, Ronald K. Taylor

Dartmouth Scholarship

The AraC homolog ToxT coordinately regulates virulence gene expression in Vibrio cholerae. ToxT is required for transcriptional activation of the genes encoding cholera toxin and the toxin coregulated pilus, among others. In this work we focused on the interaction of ToxT with the tcpA promoter and investigated the mechanism of ToxT-dependent transcriptional activation at tcpA. Deletion analysis showed that a region from −95 to +2 was sufficient for ToxT binding and activation, both of which were simultaneously lost when the deletion was extended to −63. A collection of point mutations generated by error-prone PCR revealed two small regions required …

Redescriptions Of Haemonchus Mitchelli And Haemonchus Okapiae (Nematoda: Trichostrongyloidea) And Description Of A Unique Synlophe For The Haemonchinae, J. Ralph Lichtenfels, Patricia A. Pilitt, Lynda M. Gibbons, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

In the course of a revision of Haemonchus Cobb, 1898 (Nematoda), commonly referred to as large stomach worms, significant new morphological information was discovered that allows the recognition of two species believed for more than 50 years to be synonymous. Both species, Haemonchus mitchelli Le Roux, 1929, from the eland Taurotragus oryx and other African ruminants and H. okapiae van den Berghe, 1937, from the okapi Okapia johnstoni, have a synlophe of 42 ridges, but the synlophe of H. mitchelli is longer than that of H. okapiae. The distal tip of the left spicule of H. mitchelli bears …

Mrnas Located In Squalus Acanthias (Spiny Dogfish) Oligodendrocyte Processes, Nicholas Pahl, Sara Homsi, Hilary G. Morrison, Robert M. Gould

Ocean Engineering and Marine Sciences Faculty Publications

This study identifies mRNAs located in oligodendrocyte (OL) processes of spiny dogfish and compares them with mRNAs that were previously identified in rat OL processes (1, 2). Because these two species have independent evolutionary histories covering hundreds of millions of years, mRNAs common to OL processes in both species likely represent proteins recruited to form the original myelin sheaths in the common gnathostome ancestor. Of the mRNAs present in rat OL processes, myelin basic protein (MBP) and myelin-associated oligodendrocytic basic protein (MOBP) mRNAs dominate (1, 2). Surprisingly, however, MBP mRNA is not located in spiny dogfish OL processes; rather it …

A Comparison Of The Low Mode And Monte Carlo Conformational Search Methods, Carol A. Parish, Rosina Lombardi, Kent Sinclair, Emelyn Smith, Alla Goldberg, Melissa Rappleye, Myrianne Dure

Chemistry Faculty Publications

The Low Mode (LM) and Monte Carlo (MC) conformational search methods were compared on three diverse molecular systems; (4R, 5S, 6S, 7R)-hexahydro-5,6-dihydroxy-1,3,4,7-tetrakis(phenylmethyl)-2H-1,3-diazapin-2-one (1), 2-methoxy-2-phenyl-2-triflouromethyl-N-α-methyl benzyl propanamide (2) and a trimeric 39-membered polyazamacrolide (3). We find that either method, or a combination of the methods, is equally efficient at searching the conformational space of the smaller molecular systems while a 50:50 hybrid of Low Mode and Monte Carlo is most efficient at searching the space of the larger molecular system.

Isolation And Characterization Of Atriplex Hortensis And Sweet Chenopodium Quinoa Starches, K. H. Wright, K. C. Huber, Daniel J. Fairbanks, C. S. Huber

Faculty Publications

Starches from garden orach (Atriplex hortensis) and sweet quinoa (Chenopodium quinoa Willd. "Surumi") seeds were isolated, examined for compositional characteristics, and compared with bitter quinoa (Cheno-podium quinoa Willd.) starch. Garden orach and sweet quinoa seeds were similar in fat and ash contents, while garden orach seeds contained 10% more protein. Starches were isolated from seeds following a 12-hr soak in dilute alkaline solution using a series of grinding, screening, centrifugation, and washing steps. Isolated starches viewed by scanning electron microscopy yielded angular, polygonal granules 2 m in diameter. Starches displayed typical A-type crystalline packing arrangements as determined by X-ray powder …

Sustainability Issues For Agriculture In Western Australia, Anne Bennett, Ross Kingwell, Ross George

All other publications

Agriculture has been and will continue to be a major component of economic activity in several regions in Western Australia, and agricultural communities will remain an important part of the social fabric and landscape of the State. Promoting the sustainability of agriculture is likely to produce three main outcomes: vibrant rural communities; profitable agricultural systems; and conservation of the natural environment.

This paper describes briefly the main challenges to the sustainability of agriculture and outlines some means of responding to the challenges: market-based approaches; agricultural and environmental research and development; accelerated adjustment; and global and national policy initiatives.

Asi1, A Gene Encoding A Novel Leucine Zipper Protein, Is Induced During Development Of The Macronucleus In Tetrahymena, Rupa A. Udani, Kathleen M. Karrer

Biological Sciences Faculty Research and Publications

Sexual reproduction in the ciliate Tetrahymena follows a complex developmental program involving the sequential regulation of dozens of genes. Genes that are up-regulated during post-zygotic development in Tetrahymena were isolated by subtractive hybridization. Anlagen stage induced gene 1 (ASI1) encodes a 2.8 kb transcript that contains a single intron and is induced during macronuclear development. ASI1 is a single copy gene in both the micronucleus and the macronucleus. It encodes a 95 kDa conceptual protein with a leucine zipper near the amino terminus

Region X: Survey And Excavations Of Caves In The Fault Escarpment South Of Almog Junction And West Of Qalya, Michel Ltah, Yoni Kam, Ronny Ben-Haim

'Atiqot

No abstract provided.

The Excavation Of Cave Viii/9 (‘The Large Caves Complex’), Hanan Eshel, Boas Zissu

'Atiqot

No abstract provided.

Region Xii: The Excavation Of Cave Xii/49, Fawzi Ibrahim

'Atiqot

No abstract provided.

Region I: Survey And Excavations Of The Caves Along Wadi El-Makkuk And Wadi Ed-Daliya, Yuval Peleg, Nadav Hameiri

'Atiqot

No abstract provided.

Region Iii: Survey And Excavations O Fcaves In Lower Wadi El-Makkuk, Dror Barshad, Idan Shaked

'Atiqot

No abstract provided.

Region Ii: Survey And Excavations In The Upper Wadi El-Makkuk Caves, Yizhar Hirschfeld, Shimon Riklin

'Atiqot

No abstract provided.

Regions Iv And Vi: Survey And Excavations Of Caves Along The Jebel Abu Saraj Cliffs, Ofer Sion

'Atiqot

No abstract provided.

Region Vii: Survey And Excavations Of Caves Along The Eastern Escarpment Of Jebel Qurunṭul, Tzur Abeles

'Atiqot

No abstract provided.

Region Viii: Survey And Excavations Of Caves Along The Cliff Slopes Of Triangulation Point 86, On The Fringes Ofjebel Ma‘Ar El-Bas, Hanan Eshel, Boas Zissu

'Atiqot

No abstract provided.

The Excavations Of Rock Shelter Xii/50 And Caves Xii/52-53, Rudolf Cohen, Yigal Yisrael

'Atiqot

No abstract provided.

The Excavation Of Cave Xii/56, Fawzi Ibrahim

'Atiqot

No abstract provided.

The Excavation Of Cave Xii/61, Fawzi Ibrahim, Nadav Hameiri

'Atiqot

No abstract provided.

Index, Site Index

'Atiqot

No abstract provided.

Map Of The 1993 Surveys And Excavations, Survey Of Israel

'Atiqot

No abstract provided.

Preface, Lior Wexler

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No abstract provided.

Front Matter, Front Matter

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No abstract provided.

The Excavation Of Cave Iv/11 (‘Cave Of The Pillar’), Nurit Feig

'Atiqot

No abstract provided.

Region V: Survey And Excavations Of Caves Along The Jebel Qurunṭul Escarpment Between Wadi Abu Saraj And Wadi Ḥalq Er-Rummana, Ayal Aronshtam

'Atiqot

No abstract provided.

The Excavation Of Cave V/49, Emmanuel Eisenberg

'Atiqot

No abstract provided.

The Glass Finds From Cave Viii/9 (‘The Large Caves Complex’), Ruth E. Jackson-Tal

'Atiqot

No abstract provided.

Region Ix: Survey And Excavation Of Caves In The Southern Part Of Jebel Quruntul, Danny Weiss

'Atiqot

No abstract provided.

Region Xi: Survey And Excavations Of Caves Along The Fault Escarpment Above Ḥorbat Qumran, Yuval Baruch, Gabriel Mazor, Debora Sandhaus

'Atiqot

No abstract provided.

Region Xiii: Survey And Excavations Of Caves Along The Fault Escarpment South Of Qumran, Nir Tal, Gershon Oron

'Atiqot

No abstract provided.