Search Results - "Walters, Karim"

Identification and characterization of the low molecular mass ferredoxins involved in central metabolism in Heliomicrobium modesticaldum by Walters, Karim A, Redding, Kevin E, Golbeck, John H

“…The homodimeric Type I reaction center (RC) from Heliomicrobium modesticaldum lacks the PsaC subunit found in Photosystem I and instead uses the…”
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Catalytic Activity of the Archetype from Group 4 of the FTR-like Ferredoxin:Thioredoxin Reductase Family Is Regulated by Unique S = 7/2 and S = 1/2 [4Fe–4S] Clusters by Prakash, Divya, Xiong, Jin, Chauhan, Shikha S., Walters, Karim A., Kruse, Hannah, Yennawar, Neela, Golbeck, John H., Guo, Yisong, Ferry, James G.

“…Thioredoxin reductases (TrxR) activate thioredoxins (Trx) that regulate the activity of diverse target proteins essential to prokaryotic and eukaryotic life…”
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Designing a modified clostridial 2[4Fe–4S] ferredoxin as a redox coupler to directly link photosystem I with a Pt nanoparticle by Walters, Karim A., Golbeck, John H.

“…A methodology previously developed in our laboratory utilized an aliphatic hydrocarbon terminated by thiol groups to tether two redox proteins, i.e., the…”
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Structure and function of an unusual flavodoxin from the domain Archaea by Prakash, Divya, Iyer, Prashanti R., Suharti, Suharti, Walters, Karim A., Santiago-Martinez, Michel Geovanni, Golbeck, John H., Murakami, Katsuhiko S., Ferry, James G.

“…Flavodoxins, electron transfer proteins essential for diverse metabolisms in microbes from the domain Bacteria, are extensively characterized. Remarkably,…”
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Expression, purification and characterization of an active C491G variant of ferredoxin sulfite reductase from Synechococcus elongatus PCC 7942 by Walters, Karim A., Golbeck, John H.

“…Recently developed molecular wire technology takes advantage of [4Fe-4S] clusters that are ligated by at least one surface exposed Cys residue. Mutagenesis of…”
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Tetratricopeptide repeat protein protects photosystem I from oxidative disruption during assembly by Heinnickel, Mark, Kim, Rick G., Wittkopp, Tyler M., Yang, Wenqiang, Walters, Karim A., Herbert, Stephen K., Grossman, Arthur R.

“…A Chlamydomonas reinhardtii mutant lacking CGL71, a thylakoid membrane protein previously shown to be involved in photosystem I (PSI) accumulation, exhibited…”
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Thermodynamics of the Electron Acceptors in Heliobacterium modesticaldum: An Exemplar of an Early Homodimeric Type I Photosynthetic Reaction Center by Ferlez, Bryan, Cowgill, John, Dong, Weibing, Gisriel, Christopher, Lin, Su, Flores, Marco, Walters, Karim, Cetnar, Daniel, Redding, Kevin E, Golbeck, John H

“…The homodimeric type I reaction center in heliobacteria is arguably the simplest known pigment–protein complex capable of conducting…”
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Toward a mechanistic and physiological understanding of a ferredoxin:disulfide reductase from the domains Archaea and Bacteria by Prakash, Divya, Walters, Karim A., Martinie, Ryan J., McCarver, Addison C., Kumar, Adepu K., Lessner, Daniel J., Krebs, Carsten, Golbeck, John H., Ferry, James G.

“…Disulfide reductases reduce other proteins and are critically important for cellular redox signaling and homeostasis. Methanosarcina acetivorans is a…”
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Designing a modified clostridial 2[4Fe–4S] ferredoxin as a redox coupler to directly link photosystem I with a Pt nanoparticle by Walters, Karim A., Golbeck, John H.

“…Not provided…”
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Catalytic Activity of the Archetype from Group 4 of the FTR-like Ferredoxin:Thioredoxin Reductase Family Is Regulated by Unique S = 7/2 and S = 1/2 4Fe-4S Clusters by Prakash, Divya, Xiong, Jin, Chauhan, Shikha S, Walters, Karim A, Kruse, Hannah, Yennawar, Neela, Golbeck, John H, Guo, Yisong, Ferry, James G

“…Thioredoxin reductases (TrxR) activate thioredoxins (Trx) that regulate the activity of diverse target proteins essential to prokaryotic and eukaryotic life…”
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Acclimation of the photosynthetic apparatus to low light in a thermophilic Synechococcus sp. strain by Soulier, Nathan, Walters, Karim, Laremore, Tatiana N., Shen, Gaozhong, Golbeck, John H., Bryant, Donald A.

“…Depending upon their growth responses to high and low irradiance, respectively, thermophilic Synechococcus sp. isolates from microbial mats associated with the…”
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Structure and function of an unusual flavodoxin from the domain Archaea by Prakash, Divya, Iyer, Prashanti R., Suharti, Suharti, Walters, Karim A., Santiago-Martinez, Michel Geovanni, Golbeck, John H., Murakami, Katsuhiko S., Ferry, James G.

“…Flavodoxins, electron transfer proteins essential for diverse metabolisms in microbes from the domainBacteria, are extensively characterized. Remarkably,…”
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Toward a mechanistic and physiological understanding of a ferredoxin:disulfide reductase from the domains Archaea and Bacteria by Prakash, Divya, Walters, Karim A., Martinie, Ryan J., McCarver, Addison C., Kumar, Adepu K., Lessner, Daniel J., Krebs, Carsten, Golbeck, John H., Ferry, James G.

“…Disulfide reductases reduce other proteins and are critically important for cellular redox signaling and homeostasis. Methanosarcina acetivorans is a…”
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Presence of a [3Fe–4S] cluster in a PsaC variant as a functional component of the photosystem I electron transfer chain in Synechococcus sp. PCC 7002 by Pérez, Adam A., Ferlez, Bryan H., Applegate, Amanda M., Walters, Karim, He, Zhihui, Shen, Gaozhong, Golbeck, John H., Bryant, Donald A.

“…A site-directed C14G mutation was introduced into the stromal PsaC subunit of Synechococcus sp. strain PCC 7002 in vivo in order to introduce an exchangeable…”
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Photosystem I as a Light Induced Electron Pump for Direct Enzyme Catalysis by Walters, Karim A

“…Molecular wire technology developed in our lab utilizes an aliphatic or aromatic hydrocarbon terminated by thiols to tether the [4Fe-4S] cluster FB of…”
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Spectroscopic Characterization of the SH2- and Active Site-Directed Peptide Sequences of a Bivalent Src Kinase Inhibitor by Desamero, Ruel Z. B., Kang, Jeonghee, Dol, Chrystel, Chinwong, Justina, Walters, Karim, Sivarajah, Thulashie, Profit, Adam A.

“…The spectral properties of the SH2 and active site-directed sequences of the bivalent Src kinase inhibitor Ac-EELL(F5)Phe-(GABA)3-pYEEIE-amide (1) have been…”
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