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Confirmed
Presence
Current · Arkansas
Last published
2025
Sources
OpenAlex · ORCID
Refreshed
2026-10-05
A
Ashraf Ali Khan
Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.
High Impact
SBRBPAS Expert Microbiologist
Also affiliated: Texas Tech University (2000); Center for Veterinary Medicine (2004); United States Food and Drug Administration (1994–2025); Johns Hopkins University (1992); Oakland University (1988–2002); Central Drug Research Institute (1985); The University of Agriculture, Peshawar (2020); Govind Ballabh Pant University of Agriculture and Technology (2005); Johns Hopkins Medicine (1992); Chandra Shekhar Azad University of Agriculture and Technology (2018); Cleveland Clinic Akron General (2025); Government Medical College (2022); Indian Agricultural Research Institute (2011); Saint Louis University (2025); Centro de Investigación Científica y de Educación Superior de Ensenada (2007); Texas Tech University Health Sciences Center (2000)
36 h-index
129 pubs
3,895 cited
Research Areas
Biomedical Subjects
Links
Biography and Research Information
OverviewAI-generated summary
Ashraf A. Khan's research focuses on the molecular characterization of bacteria, particularly concerning antimicrobial resistance, virulence factors, and mobile genetic elements. His work investigates the genomic basis of bacterial adaptation and pathogenicity, with implications for public health and food safety. Recent publications have explored the genetic makeup of multidrug-resistant E. coli isolates from imported shrimp, identifying mechanisms of copper resistance in Salmonella enterica, and characterizing uropathogenic E. coli.
Khan has also examined the efficacy of materials for antibacterial applications, including nanostructured aluminum foil. His research extends to understanding the dynamics of infectious diseases across different geographic regions, such as brucellosis in the Nile River Basin. His scholarship metrics include an h-index of 36, with over 3,800 citations across 133 publications, designating him as a highly cited researcher. He leads an active research group and collaborates with several colleagues at the National Center for Toxicological Research.
Metrics
- h-index: 36
- Publications: 129
- Citations: 3,895
Positions
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SBRBPAS Expert Microbiologist 1992–presentNational Center for Toxicological Research Microbiology ORCID
Selected Publications
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Comparison of the Presence of Heavy Metal Resistance Genes in Salmonella enterica and Their Association with Antibiotic Resistance (2025)
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The newly identified grdA gene confers high-level plazomicin resistance in Salmonella enterica serovars (2025)
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Comprehensive Genomic Analysis of Uropathogenic E. coli: Virulence Factors, Antimicrobial Resistance, and Mobile Genetic Elements (2024)
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The acquired pco gene cluster in Salmonella enterica mediates resistance to copper (2024)
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Whole-Genome Sequence Analysis of Antibiotic Resistance, Virulence, and Plasmid Dynamics in Multidrug-Resistant E. coli Isolates from Imported Shrimp (2024)
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Prevalence and Molecular Characterization of Shiga Toxin-Producing Escherichia coli from Food and Clinical Samples (2023)
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Draft genome sequences of nine non-O157 Shiga toxin-producing Escherichia coli in ready-to-eat food from supermarkets in Argentina (2023)
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Draft Genome Sequences of 14 Fluoroquinolone-Resistant Escherichia coli Isolates from Imported Shrimp (2023)
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Microbial Genetics and Clonal Dissemination of Salmonella enterica Serotype Javiana Isolated from Human Populations in Arkansas, USA (2022)
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Draft Genome Sequences of Tetracycline-Resistant Shiga Toxin-Producing Escherichia coli Isolates from Food (2022)
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Draft Genome Sequences of Sixteen Fluoroquinolone-Resistant Extraintestinal Escherichia coli Isolates from Human Patients (2022)
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Nanostructured antibacterial aluminum foil produced by hot water treatment against E. coli in meat (2021)
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Enhancing the antibacterial efficacy of aluminum foil by nanostructuring its surface using hot water treatment * (2021)
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Antimicrobial resistance and related gene analysis of Salmonella from egg and chicken sources by whole-genome sequencing (2020)
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Subtyping of Salmonella Enterica Serovar Typhimurium from Clinical Samples by Multiple-Locus Variable-Number Tandem Repeat Analysis and Pulsed-Field Gel Electrophoresis (2019)
Collaboration Network
Top Collaborators
Mohamed S. Nawaz
National Center for Toxicological Research (US)
32 shared publications
- Detection and characterization of virulence genes and integrons in Aeromonas veronii isolated from catfish
- Biochemical and Molecular Characterization of Tetracycline-Resistant Aeromonas veronii Isolates from Catfish
- Purification and characterization of an amidase from an acrylamide-degrading Rhodococcus sp
- A simple and efficient Triton X-100 boiling and chloroform extraction method of RNA isolation from Gram-positive and Gram-negative bacteria
- Isolation and characterization of tetracycline-resistant Citrobacter spp. from catfish
Showing 5 of 32 shared publications
Carl E. Cerniglia
National Center for Toxicological Research
31 shared publications
In database
- Molecular Cloning, Nucleotide Sequence, and Expression of Genes Encoding a Polycyclic Aromatic Ring Dioxygenase from Mycobacterium sp. Strain PYR-1
- Molecular characterization of a phenanthrene degradation pathway in Mycobacterium vanbaalenii PYR-1
- Detection of Pseudomonas aeruginosa from clinical and environmental samples by amplification of the exotoxin A gene using PCR
- Detection of multidrug-resistantSalmonella typhimuriumDT104 by multiplex polymerase chain reaction
- Molecular characterization of dioxygenases from polycyclic aromatic hydrocarbon-degrading Mycobacterium spp.
Showing 5 of 31 shared publications
Saeed Khan
National Center for Toxicological Research
22 shared publications
In database
- Detection and characterization of virulence genes and integrons in Aeromonas veronii isolated from catfish
- Biochemical and Molecular Characterization of Tetracycline-Resistant Aeromonas veronii Isolates from Catfish
- Detection of multidrug-resistantSalmonella typhimuriumDT104 by multiplex polymerase chain reaction
- A simple and efficient Triton X-100 boiling and chloroform extraction method of RNA isolation from Gram-positive and Gram-negative bacteria
- Molecular characterization of multidrug-resistant Enterococcus spp. from poultry and dairy farms: detection of virulence and vancomycin resistance gene markers by PCR
Showing 5 of 22 shared publications
Kidon Sung
National Center for Toxicological Research
13 shared publications
In database
- Detection and characterization of virulence genes and integrons in Aeromonas veronii isolated from catfish
- Biochemical and Molecular Characterization of Tetracycline-Resistant Aeromonas veronii Isolates from Catfish
- A simple and efficient Triton X-100 boiling and chloroform extraction method of RNA isolation from Gram-positive and Gram-negative bacteria
- Isolation and characterization of tetracycline-resistant Citrobacter spp. from catfish
- Isolation and characterization of multidrug-resistant Klebsiella spp. isolated from shrimp imported from Thailand
Showing 5 of 13 shared publications
Khulud Alotaibi
National Center for Toxicological Research
9 shared publications
In database
- Enhancing the antibacterial efficacy of aluminum foil by nanostructuring its surface using hot water treatment *
- Comprehensive Genomic Analysis of Uropathogenic E. coli: Virulence Factors, Antimicrobial Resistance, and Mobile Genetic Elements
- Whole-Genome Sequence Analysis of Antibiotic Resistance, Virulence, and Plasmid Dynamics in Multidrug-Resistant E. coli Isolates from Imported Shrimp
- Nanostructured antibacterial aluminum foil produced by hot water treatment against E. coli in meat
- Prevalence and Molecular Characterization of Shiga Toxin-Producing Escherichia coli from Food and Clinical Samples
Showing 5 of 9 shared publications
Roger Steele
National Center for Toxicological Research (US)
8 shared publications
- Detection and characterization of virulence genes and integrons in Aeromonas veronii isolated from catfish
- Biochemical and Molecular Characterization of Tetracycline-Resistant Aeromonas veronii Isolates from Catfish
- Isolation and characterization of tetracycline-resistant Citrobacter spp. from catfish
- Isolation and characterization of multidrug-resistant Klebsiella spp. isolated from shrimp imported from Thailand
- Molecular Characterization of Tetracycline-Resistant Genes and Integrons from Avirulent Strains of Escherichia coli Isolated from Catfish
Showing 5 of 8 shared publications
Steven L. Foley
National Center for Toxicological Research
6 shared publications
In database
- The acquired pco gene cluster in Salmonella enterica mediates resistance to copper
- Draft Genome Sequences of Ciprofloxacin-Resistant Salmonella enterica Strains with Multiple-Antibiotic Resistance, Isolated from Imported Foods
- Comparison of the Presence of Heavy Metal Resistance Genes in Salmonella enterica and Their Association with Antibiotic Resistance
- The newly identified grdA gene confers high-level plazomicin resistance in Salmonella enterica serovars
- Subtyping of Salmonella Enterica Serovar Typhimurium from Clinical Samples by Multiple-Locus Variable-Number Tandem Repeat Analysis and Pulsed-Field Gel Electrophoresis
Showing 5 of 6 shared publications
Tatsuya Akiyama
National Center for Toxicological Research (US)
5 shared publications
- The tetA gene decreases tigecycline sensitivity of Salmonella enterica isolates
- Molecular characterization of Salmonella enterica serovar Saintpaul isolated from imported seafood, pepper, environmental and clinical samples
- Cytotoxic Mechanism of Cytolethal Distending Toxin in Nontyphoidal Salmonella Serovar ( Salmonella Javiana) During Macrophage Infection
- Isolation and characterization of smallqnrS1-carrying plasmids from imported seafood isolates ofSalmonella entericathat are highly similar to plasmids of clinical isolates
- Molecular characterisation of high-level ciprofloxacin-resistant Salmonella enterica with multiple antibiotic resistance and class 1 integrons isolated from imported foods
Wei-Wen Cao
National Center for Toxicological Research (US)
5 shared publications
- Molecular Cloning, Nucleotide Sequence, and Expression of Genes Encoding a Polycyclic Aromatic Ring Dioxygenase from Mycobacterium sp. Strain PYR-1
- Cloning, Expression, and Characterization of the katG Gene, Encoding Catalase-Peroxidase, from the Polycyclic Aromatic Hydrocarbon-Degrading Bacterium Mycobacterium sp. Strain PYR-1
- Cloning, sequencing, and expression inEscherichia coliof a cytochrome P450 gene fromCunninghamella elegans
- Identification and sequencing of a cDNA encoding 6-phosphogluconate dehydrogenase from a fungus,Cunninghamella elegansand expression of the gene inEscherichia coli
- Cloning, sequencing, and expression of the gene encoding enolase from Cunninghamella elegans
Rongfu Wang
National Center for Toxicological Research (US)
4 shared publications
- Molecular Cloning, Nucleotide Sequence, and Expression of Genes Encoding a Polycyclic Aromatic Ring Dioxygenase from Mycobacterium sp. Strain PYR-1
- Cloning, Expression, and Characterization of the katG Gene, Encoding Catalase-Peroxidase, from the Polycyclic Aromatic Hydrocarbon-Degrading Bacterium Mycobacterium sp. Strain PYR-1
- Nucleotide sequence of the gene encoding cis-biphenyl dihydrodiol dehydrogenase (bphB) and the expression of an active recombinant His-tagged bphB gene product from a PCB degrading bacterium, Pseudomonas putida OU83
- Detection of galE gene by polymerase chain reaction in campylobacters associated with Guillain–Barre syndrome
Dongryeoul Bae
National Center for Toxicological Research (US)
4 shared publications
- Characterization of extended-spectrum β-lactamase (ESBL) producing non-typhoidal Salmonella (NTS) from imported food products
- Detection and functionality of the CdtB, PltA, and PltB fromSalmonella entericaserovar Javiana
- The sub-species characterization and antimicrobial resistance of Listeria monocytogenes isolated from domestic and imported food products from 2004 to 2011
- Isolation and Characterization of Antimicrobial-Resistant Nontyphoidal Salmonella enterica Serovars from Imported Food Products
Ezat H. Mezal
University of Arkansas at Little Rock (US)
4 shared publications
- Isolation and molecular characterization of Salmonella enterica serovar Enteritidis from poultry house and clinical samples during 2010
- Isolation and molecular characterization of Salmonella enterica serovar Javiana from food, environmental and clinical samples
- Detection and functionality of the CdtB, PltA, and PltB fromSalmonella entericaserovar Javiana
- The sub-species characterization and antimicrobial resistance of Listeria monocytogenes isolated from domestic and imported food products from 2004 to 2011
Chorng-Ming Cheng
United States Food and Drug Administration (US)
4 shared publications
- Identification and Characterization of Class 1 Integron Resistance Gene Cassettes among Salmonella Strains Isolated from Imported Seafood
- Characterization of extended-spectrum β-lactamase (ESBL) producing non-typhoidal Salmonella (NTS) from imported food products
- Molecular characterization of Salmonella enterica serovar Saintpaul isolated from imported seafood, pepper, environmental and clinical samples
- The sub-species characterization and antimicrobial resistance of Listeria monocytogenes isolated from domestic and imported food products from 2004 to 2011
Rossina Stefanova
Arkansas Department of Health (US)
4 shared publications
- Isolation and molecular characterization of Salmonella enterica serovar Enteritidis from poultry house and clinical samples during 2010
- Isolation and molecular characterization of Salmonella enterica serovar Javiana from food, environmental and clinical samples
- Molecular characterization of Salmonella enterica serovar Saintpaul isolated from imported seafood, pepper, environmental and clinical samples
- Subtyping of Salmonella Enterica Serovar Typhimurium from Clinical Samples by Multiple-Locus Variable-Number Tandem Repeat Analysis and Pulsed-Field Gel Electrophoresis
Barbara Brežná
National Center for Toxicological Research (US)
4 shared publications
- Molecular characterization of dioxygenases from polycyclic aromatic hydrocarbon-degrading Mycobacterium spp.
- Novel organization of genes in a phthalate degradation operon of Mycobacterium vanbaalenii PYR-1
- Molecular characterization of cytochrome P450 genes in the polycyclic aromatic hydrocarbon degrading Mycobacterium vanbaalenii PYR-1
- Erratum to: Molecular characterization of cytochrome P450 genes in the polycyclic aromatic hydrocarbon degrading Mycobacterium vanbaalenii PYR-1
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