Atsushi Yokota

Publication List Details

Period

2003 - 2009

Number

50

Co-Authors

A novel membrane-anchored cytochrome c-550 of alkaliphilic Bacillus clarkii K24-1U: expression, molecular features and properties of redox potential (2009)

Ogami, Shinichi, Hijikata, Shoichi, Tsukahara, Tamotsu, Mie, Yasuhiro, Matsuno, Toshihide, Morita, Naoki, ...

A membrane-anchored cytochrome c-550, which is highly expressed in obligately alkaliphilic Bacillus clarkii K24-1U, was purified and characterized. The protein contained a conspicuous sequence of...

Gene Cloning and Expression of Pyridoxal 5'-Phosphate-Dependent L-threo-3-Hydroxyaspartate Dehydratase from Pseudomonas sp. T62, and Characterization of the Recombinant Enzyme (2009)

Murakami, Tomoko, Maeda, Takayuki, Yokota, Atsushi, Wada, Masaru

L-threo-3-Hydroxyaspartate dehydratase (L-THA DH, EC 4.3.1.16), which catalyses the cleavage of L-threo-3-hydroxyaspartate (L-THA) to oxalacetate and ammonia, has been purified from the soil...

Alanine production in an H+-ATPase- and lactate dehydrogenase-defective mutant of Escherichia coli expressing alanine dehydrogenase (2007)

Wada, Masaru, Narita, Kotomi, Yokota, Atsushi

Previously, we reported that pyruvate production was markedly improved in TBLA-1, an H+-ATPase-defective Escherichia coli mutant derived from W1485lip2, a pyruvate-producing E. coli K-12 strain....

Diversity and mechanisms of alkali tolerance in lactobacilli (2007)

Sawatari, Yuki, Yokota, Atsushi, 横田, 篤

We determined the maximum pH that allows growth (pHmax) for 34 strains of lactobacilli. High alkali tolerance was exhibited by strains of Lactobacillus casei, L. paracasei subsp. tolerans, L....

Diversity and mechanisms of alkali tolerance in lactobacilli. (2007)

Sawatari, Yuki, Yokota, Atsushi

We determined the maximum pH that allows growth (pHmax) for 34 strains of lactobacilli. High alkali tolerance was exhibited by strains of Lactobacillus casei, L. paracasei subsp. tolerans, L....

Population dynamics of Bifidobacterium species in human feces during raffinose administration monitored by fluorescence in situ hybridization-flow cytometry (2006)

Dinoto, Achmad, Marques, Tatiana M., Sakamoto, Kanta, Fukiya, Satoru, Watanabe, Jun, Ito, Susumu, ...

The population dynamics of bifidobacteria in human feces during raffinose administration were investigated at the species level by using fluorescence in situ hybridization (FISH) coupled with flow...

Population dynamics of Bifidobacterium species in human feces during raffinose administration monitored by fluorescence in situ hybridization-flow cytometry. (2006)

Dinoto, Achmad, Marques, Tatiana M., Sakamoto, Kanta, Fukiya, Satoru, Watanabe, Jun, Ito, Susumu, ...

The population dynamics of bifidobacteria in human feces during raffinose administration were investigated at the species level by using fluorescence in situ hybridization (FISH) coupled with flow...

Alterations of cellular physiology in Escherichia coli in response to oxidative phosphorylation impaired by defective F1-ATPase (2006)

Noda, Sakiko, Takezawa, Yuji, Mizutani, Tomohiko, Asakura, Tomoaki, Nishiumi, Eiichiro, Onoe, Kazunori, ...

The physiological changes in an F1-ATPase-defective mutant of Escherichia coli W1485 growing in a glucose-limited chemostat included a decreased growth yield (60%) and increased specific rates of...

Alterations of cellular physiology in Escherichia coli in response to oxidative phosphorylation impaired by defective F1-ATPase. (2006)

Noda, Sakiko, Takezawa, Yuji, Mizutani, Tomohiko, Asakura, Tomoaki, Nishiumi, Eiichiro, Onoe, Kazunori, ...

The physiological changes in an F1-ATPase-defective mutant of Escherichia coli W1485 growing in a glucose-limited chemostat included a decreased growth yield (60%) and increased specific rates of...

Alterations of cellular physiology in Escherichia coli in response to oxidative phosphorylation impaired by defective F1-ATPase. (2006)

Noda, Sakiko, Takezawa, Yuji, Mizutani, Tomohiko, Asakura, Tomoaki, Nishiumi, Eiichiro, Onoe, Kazunori, ...

The physiological changes in an F1-ATPase-defective mutant of Escherichia coli W1485 growing in a glucose-limited chemostat included a decreased growth yield (60%) and increased specific rates of...

Mechanism of Growth Inhibition by Free Bile Acids in Lactobacilli and Bifidobacteria (2006)

Kurdi, Peter, Kawanishi, Koji, Mizutani, Kanako, Yokota, Atsushi, 横田, 篤

The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It...

Mechanism of Growth Inhibition by Free Bile Acids in Lactobacilli and Bifidobacteria (2006)

Kurdi, Peter, Kawanishi, Koji, Mizutani, Kanako, Yokota, Atsushi

The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It...

Mechanism of Growth Inhibition by Free Bile Acids in Lactobacilli and Bifidobacteria (2006)

Kurdi, Peter, Kawanishi, Koji, Mizutani, Kanako, Yokota, Atsushi

The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It...

Modulation of Rat Cecal Microbiota by Administration of Raffinose and Encapsulated Bifidobacterium breve (2006)

Dinoto, Achmad, Suksomcheep, Akarat, Ishizuka, Satoshi, Kimura, Hanae, Hanada, Satoshi, Kamagata, Yoichi, ...

To investigate the effects of administration of raffinose and encapsulated Bifidobacterium breve JCM 1192T cells on the rat cecal microbiota, in a preclinical synbiotic study groups of male WKAH/Hkm...

Modulation of Rat Cecal Microbiota by Administration of Raffinose and Encapsulated Bifidobacterium breve (2006)

Dinoto, Achmad, Suksomcheep, Akarat, Ishizuka, Satoshi, Kimura, Hanae, Hanada, Satoshi, Kamagata, Yoichi, ...

To investigate the effects of administration of raffinose and encapsulated Bifidobacterium breve JCM 1192T cells on the rat cecal microbiota, in a preclinical synbiotic study groups of male WKAH/Hkm...

Modulation of Rat Cecal Microbiota by Administration of Raffinose and Encapsulated Bifidobacterium breve (2006)

Dinoto, Achmad, Suksomcheep, Akarat, Ishizuka, Satoshi, Kimura, Hanae, Hanada, Satoshi, Kamagata, Yoichi, ...

To investigate the effects of administration of raffinose and encapsulated Bifidobacterium breve JCM 1192T cells on the rat cecal microbiota, in a preclinical synbiotic study groups of male WKAH/Hkm...

Development and assessment of a Real-Time PCR assay for the rapid and sensitive detection of a novel thermotolerant bacterium, Lactobacillus thermotolerans, in chicken feces (2005)

Selim, Abu Sadeque Md., Assavanig, Apinya, Sone, Teruo, Boonkumklao, Piyanuch, Wada, Masaru, Yokota, Atsushi, ...

A new real-time PCR assay was successfully developed using a TaqMan fluorescence probe for specific detection and enumeration of a novel bacterium, Lactobacillus thermotolerans, in chicken feces. The...

Development and assessment of a Real-Time PCR assay for the rapid and sensitive detection of a novel thermotolerant bacterium, Lactobacillus thermotolerans, in chicken feces (2005)

Selim, Abu Sadeque Md., Assavanig, Apinya, Sone, Teruo, Boonkumklao, Piyanuch, Wada, Masaru, Yokota, Atsushi

A new real-time PCR assay was successfully developed using a TaqMan fluorescence probe for specific detection and enumeration of a novel bacterium, Lactobacillus thermotolerans, in chicken feces. The...

Development and assessment of a Real-Time PCR assay for the rapid and sensitive detection of a novel thermotolerant bacterium, Lactobacillus thermotolerans, in chicken feces (2005)

Selim, Abu Sadeque Md., Assavanig, Apinya, Sone, Teruo, Boonkumklao, Piyanuch, Wada, Masaru, Yokota, Atsushi

A new real-time PCR assay was successfully developed using a TaqMan fluorescence probe for specific detection and enumeration of a novel bacterium, Lactobacillus thermotolerans, in chicken feces. The...

Effects of difructose anhydride III (DFA III) administration on bile acids and growth of DFA III-assimilating bacterium Ruminococcus productus on rat intestine. (2005)

Minamida, Kimiko, Kaneko, Maki, Ohashi, Midori, Sujaya I., Nengah, Sone, Teruo, Wada, Masaru, ...

The growth of DFA III-assimilating bacteria in the intestines of rats fed 3% DFA III for 2 weeks was examined. Sixty-four percent of the DFA III intake had been assimilated on day 3 of ingestion, and...

Effects of difructose anhydride III (DFA III) administration on bile acids and growth of DFA III-assimilating bacterium Ruminococcus productus on rat intestine. (2005)

Minamida, Kimiko, Kaneko, Maki, Ohashi, Midori, Sujaya I., Nengah, Sone, Teruo, Wada, Masaru, ...

The growth of DFA III-assimilating bacteria in the intestines of rats fed 3% DFA III for 2 weeks was examined. Sixty-four percent of the DFA III intake had been assimilated on day 3 of ingestion, and...

Effects of difructose anhydride III (DFA III) administration on bile acids and growth of DFA III-assimilating bacterium Ruminococcus productus on rat intestine. (2005)

Minamida, Kimiko, Kaneko, Maki, Ohashi, Midori, Sujaya I., Nengah, Sone, Teruo, Wada, Masaru, ...

The growth of DFA III-assimilating bacteria in the intestines of rats fed 3% DFA III for 2 weeks was examined. Sixty-four percent of the DFA III intake had been assimilated on day 3 of ingestion, and...

Effects of difructose anhydride III (DFA III) administration on rat intestinal microbiota. (2005)

Minamida, Kimiko, Shiga, Kazuki, Sujaya I., Nengah, Sone, Teruo, Yokota, Atsushi, Hara, Hiroshi, ...

The effects of difructose anhydride III (di-D-fructofuranose-1,2′:2,3′-dianhydride; DFA III) administration (3% DFA III for 4 weeks) on rat intestinal microbiota were examined using denaturing...

Effects of difructose anhydride III (DFA III) administration on rat intestinal microbiota. (2005)

Minamida, Kimiko, Shiga, Kazuki, Sujaya I., Nengah, Sone, Teruo, Yokota, Atsushi, Hara, Hiroshi, ...

The effects of difructose anhydride III (di-D-fructofuranose-1,2′:2,3′-dianhydride; DFA III) administration (3% DFA III for 4 weeks) on rat intestinal microbiota were examined using denaturing...

Effects of difructose anhydride III (DFA III) administration on rat intestinal microbiota. (2005)

Minamida, Kimiko, Shiga, Kazuki, Sujaya I., Nengah, Sone, Teruo, Yokota, Atsushi, Hara, Hiroshi, ...

The effects of difructose anhydride III (di-D-fructofuranose-1,2′:2,3′-dianhydride; DFA III) administration (3% DFA III for 4 weeks) on rat intestinal microbiota were examined using denaturing...

The effects of di-D-fructofuranose-1,2':2,3'-dianhydride (DFA III) administration on human intestinal microbiota. (2004)

Minamida, Kimiko, Sujaya I., Nengah, Tamura, Akiko, Shigematsu, Norihiro, Sone, Teruo, Yokota, Atsushi, ...

Di-D-fructofuranose-1,2′:2,3′-dianhydride (DFA III) was shown to enhance Ca absorption in rat and human intestine. The effects of DFA III administration (9 g per day for 4 weeks that corresponded...

The effects of di-D-fructofuranose-1,2':2,3'-dianhydride (DFA III) administration on human intestinal microbiota. (2004)

Minamida, Kimiko, Sujaya I., Nengah, Tamura, Akiko, Shigematsu, Norihiro, Sone, Teruo, Yokota, Atsushi, ...

Di-D-fructofuranose-1,2′:2,3′-dianhydride (DFA III) was shown to enhance Ca absorption in rat and human intestine. The effects of DFA III administration (9 g per day for 4 weeks that corresponded...

The effects of di-D-fructofuranose-1,2':2,3'-dianhydride (DFA III) administration on human intestinal microbiota. (2004)

Minamida, Kimiko, Sujaya I., Nengah, Tamura, Akiko, Shigematsu, Norihiro, Sone, Teruo, Yokota, Atsushi, ...

Di-D-fructofuranose-1,2′:2,3′-dianhydride (DFA III) was shown to enhance Ca absorption in rat and human intestine. The effects of DFA III administration (9 g per day for 4 weeks that corresponded...

Cholic acid accumulation and its diminution by short-chain fatty acids in bifidobacteria (2003)

Kurdi, Peter, Tanaka, Hiroshi, W. Van Veen, Hendrik, Asano, Kozo, Tomita, Fusao, Yokota, Atsushi, ...

Cholic acid (CA) transport was investigated in nine intestinal Bifidobacterium strains. Upon energization with glucose, all of the bifidobacteria accumulated CA. The driving force behind CA...

Lactobacillus thermotolerans sp. nov., a novel thermotolerant species isolated from chicken faeces (2003)

Niamsup, Piyanuch, Sujaya, I Nengah, Tanaka, Michiko, Sone, Teruo, Hanada, Satoshi, Kamagata, Yoichi, ...

Five strains of thermotolerant lactic acid bacteria (G 12,G22,G35T,G43 andG44) isolated from chicken faeces were characterized taxonomically. The strains were facultatively anaerobic, Grampositive,...

Purification and Characterization of 2,6-β-d-Fructan 6-Levanbiohydrolase from Streptomyces exfoliatus F3-2

Saito, Katsuichi, Kondo, Kazuya, Kojima, Ichiro, Yokota, Atsushi, Tomita, Fusao

Streptomyces exfoliatus F3-2 produced an extracellular enzyme that converted levan, a β-2,6-linked fructan, into levanbiose. The enzyme was purified 50-fold from culture supernatant to give a single...

Cholate Resistance in Lactococcus lactis Is Mediated by an ATP-Dependent Multispecific Organic Anion Transporter

Yokota, Atsushi, Veenstra, Marloes, Kurdi, Peter, Van Veen, Hendrik W., Konings, Wil N.

The cholate-resistant Lactococcus lactis strain C41-2, derived from wild-type L. lactis MG1363 through selection for growth on cholate-containing medium, displayed a reduced accumulation of cholate...

Cholic Acid Is Accumulated Spontaneously, Driven by Membrane ΔpH, in Many Lactobacilli

Kurdi, Peter, Van Veen, Hendrik W., Tanaka, Hiroshi, Mierau, Igor, Konings, Wil N., Tannock, Gerald W., ...

Many lactobacilli from various origins were found to apparently lack cholic acid extrusion activity. Cholic acid was accumulated spontaneously, driven by the transmembrane proton gradient....

Development and Assessment of a Real-Time PCR Assay for Rapid and Sensitive Detection of a Novel Thermotolerant Bacterium, Lactobacillus thermotolerans, in Chicken Feces

Selim, Abu Sadeque Md., Boonkumklao, Piyanuch, Sone, Teruo, Assavanig, Apinya, Wada, Masaru, Yokota, Atsushi

A new real-time PCR assay was successfully developed using a TaqMan fluorescence probe for specific detection and enumeration of a novel bacterium, Lactobacillus thermotolerans, in chicken feces. The...

Modulation of Rat Cecal Microbiota by Administration of Raffinose and Encapsulated Bifidobacterium breve

Dinoto, Achmad, Suksomcheep, Akarat, Ishizuka, Satoshi, Kimura, Hanae, Hanada, Satoshi, Kamagata, Yoichi, ...

To investigate the effects of administration of raffinose and encapsulated Bifidobacterium breve JCM 1192T cells on the rat cecal microbiota, in a preclinical synbiotic study groups of male WKAH/Hkm...

Mechanism of Growth Inhibition by Free Bile Acids in Lactobacilli and Bifidobacteria

Kurdi, Peter, Kawanishi, Koji, Mizutani, Kanako, Yokota, Atsushi

The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It...

Purification and Characterization of 2,6-β-d-Fructan 6-Levanbiohydrolase from Streptomyces exfoliatus F3-2

Saito, Katsuichi, Kondo, Kazuya, Kojima, Ichiro, Yokota, Atsushi, Tomita, Fusao

Streptomyces exfoliatus F3-2 produced an extracellular enzyme that converted levan, a β-2,6-linked fructan, into levanbiose. The enzyme was purified 50-fold from culture supernatant to give a single...

Cholate Resistance in Lactococcus lactis Is Mediated by an ATP-Dependent Multispecific Organic Anion Transporter

Yokota, Atsushi, Veenstra, Marloes, Kurdi, Peter, Van Veen, Hendrik W., Konings, Wil N.

The cholate-resistant Lactococcus lactis strain C41-2, derived from wild-type L. lactis MG1363 through selection for growth on cholate-containing medium, displayed a reduced accumulation of cholate...

Cholic Acid Is Accumulated Spontaneously, Driven by Membrane ΔpH, in Many Lactobacilli

Kurdi, Peter, Van Veen, Hendrik W., Tanaka, Hiroshi, Mierau, Igor, Konings, Wil N., Tannock, Gerald W., ...

Many lactobacilli from various origins were found to apparently lack cholic acid extrusion activity. Cholic acid was accumulated spontaneously, driven by the transmembrane proton gradient....

Development and Assessment of a Real-Time PCR Assay for Rapid and Sensitive Detection of a Novel Thermotolerant Bacterium, Lactobacillus thermotolerans, in Chicken Feces

Selim, Abu Sadeque Md., Boonkumklao, Piyanuch, Sone, Teruo, Assavanig, Apinya, Wada, Masaru, Yokota, Atsushi

A new real-time PCR assay was successfully developed using a TaqMan fluorescence probe for specific detection and enumeration of a novel bacterium, Lactobacillus thermotolerans, in chicken feces. The...

Modulation of Rat Cecal Microbiota by Administration of Raffinose and Encapsulated Bifidobacterium breve

Dinoto, Achmad, Suksomcheep, Akarat, Ishizuka, Satoshi, Kimura, Hanae, Hanada, Satoshi, Kamagata, Yoichi, ...

To investigate the effects of administration of raffinose and encapsulated Bifidobacterium breve JCM 1192T cells on the rat cecal microbiota, in a preclinical synbiotic study groups of male WKAH/Hkm...

Mechanism of Growth Inhibition by Free Bile Acids in Lactobacilli and Bifidobacteria

Kurdi, Peter, Kawanishi, Koji, Mizutani, Kanako, Yokota, Atsushi

The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It...

Alterations of Cellular Physiology in Escherichia coli in Response to Oxidative Phosphorylation Impaired by Defective F1-ATPase

Noda, Sakiko, Takezawa, Yuji, Mizutani, Tomohiko, Asakura, Tomoaki, Nishiumi, Eiichiro, Onoe, Kazunori, ...

The physiological changes in an F1-ATPase-defective mutant of Escherichia coli W1485 growing in a glucose-limited chemostat included a decreased growth yield (60%) and increased specific rates of...

Population Dynamics of Bifidobacterium Species in Human Feces during Raffinose Administration Monitored by Fluorescence In Situ Hybridization-Flow Cytometry▿

Dinoto, Achmad, Marques, Tatiana M., Sakamoto, Kanta, Fukiya, Satoru, Watanabe, Jun, Ito, Susumu, ...

The population dynamics of bifidobacteria in human feces during raffinose administration were investigated at the species level by using fluorescence in situ hybridization (FISH) coupled with flow...

Diversity and Mechanisms of Alkali Tolerance in Lactobacilli▿

Sawatari, Yuki, Yokota, Atsushi

We determined the maximum pH that allows growth (pHmax) for 34 strains of lactobacilli. High alkali tolerance was exhibited by strains of Lactobacillus casei, L. paracasei subsp. tolerans, L....