Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Emerson, Joseph P.
Committee Member
Fitzkee, Nicholas C.
Committee Member
Mlsna, Debra Ann
Date of Degree
8-9-2019
Original embargo terms
Visible MSU Only 3 Years
Document Type
Graduate Thesis - Open Access
Major
Chemistry
Degree Name
Master of Science
Degree Name
Master of Science (M.S.)
College
College of Arts and Sciences
College
College of Arts and Sciences
Department
Department of Chemistry
Department
Department of Chemistry
Abstract
Transition metals are essential micronutrients for organisms. Excess zinc can be lethal to bacterial survival. Zinc homeostasis is crucial and is regulated by zinc uptake and efflux system. Streptococcus pneumoniae AdcR (Adhesin competence regulator) transcription factor is the member of MarR (multiple antibiotic resistance regulator) family proteins that suppress the zinc upregulation transporter. In the absence of zinc, AdcR has less affinity to bind DNA and uptake genes are expressed in order to transport zinc inside the cell. Streptococcus pneumoniae is a gram-positive human pathogen that is capable of colonizing in the human nasopharynx, especially in young children and leads to severe diseases including pneumonia, septicaemia, and meningitis. In this work, we have transformed AdcR gene in E.Coli (BL21D3) cell, and we have overexpressed and purified AdcR using classical molecular biology and protein purification techniques. We also performed preliminary biophysical characterization of purified zinc(II) dependent transcription factor AdcR.
URI
https://hdl.handle.net/11668/14572
Recommended Citation
Saem, ASM, "Purification and preliminary characterization of Zinc(II) dependent transcription factor AdcR" (2019). Theses and Dissertations. 3681.
https://scholarsjunction.msstate.edu/td/3681