Phi Kappa Sigma International Fraternity

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Phi Kappa Sigma is more than an organization to be a part of during college; it is a valuable learning experience, a life-ling commitment, and philosophy of life. Along with the Phi Kappa Sigma Ritual, our Purpose and Principles (http://pks.org/purpose.shtml) state who and what we are as a Fraternity and as members of that Fraternity. All members take an oath to uphold these ideals and it is up to all of us to make sure that we, and those who come after us, learn and understand what it is to be a true "Phi Kap" and "Man of Honor" and incorporate that into our Chapters and into our lives. We do our best to ensure our members have an excellent undergraduate experience and graduate to become more than just productive members of society, but leaders that possess a foundation built on steadfast values and a duty to help their fellow man.
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Mechanism of Unexpected In-Trans Post-PKS Polyketide Reduction in Cochliodone Biosynthesis - ACS Publications

Mechanism of Unexpected In-Trans Post-PKS Polyketide Reduction in Cochliodone Biosynthesis ACS Publications

Astronomers spot the 'Eye of Sauron' in deep space - Phys.org

Astronomers spot the 'Eye of Sauron' in deep space Phys.org

Fatuamide A, a Hybrid PKS/NRPS Metallophore from a Leptolyngbya sp. Marine Cyanobacterium Collected in American Samoa - ACS Publications

Fatuamide A, a Hybrid PKS/NRPS Metallophore from a Leptolyngbya sp. Marine Cyanobacterium Collected in American Samoa ACS Publications

Study investigates multiwavelength variability of blazar PKS 0727-11 - Phys.org

Study investigates multiwavelength variability of blazar PKS 0727-11 Phys.org

Shared PKS Module in Biosynthesis of Synergistic Laxaphycins - Frontiers

Shared PKS Module in Biosynthesis of Synergistic Laxaphycins Frontiers

Structure of a modular polyketide synthase reducing region - ScienceDirect.com

Structure of a modular polyketide synthase reducing region ScienceDirect.com

The Calicheamicin Gene Cluster and Its Iterative Type I Enediyne PKS - Science | AAAS

The Calicheamicin Gene Cluster and Its Iterative Type I Enediyne PKS Science | AAAS

A fungal NRPS-PKS enzyme catalyses the formation of the flavonoid naringenin - Nature

A fungal NRPS-PKS enzyme catalyses the formation of the flavonoid naringenin Nature

Six type-I PKS classes and highly conserved melanin and elsinochrome gene clusters found in diverse Elsinoë species - BMC Genomics

Six type-I PKS classes and highly conserved melanin and elsinochrome gene clusters found in diverse Elsinoë species BMC Genomics

Bioinformatic and Mechanistic Analysis of the Palmerolide PKS-NRPS Biosynthetic Pathway From the Microbiome of an Antarctic Ascidian - Frontiers

Bioinformatic and Mechanistic Analysis of the Palmerolide PKS-NRPS Biosynthetic Pathway From the Microbiome of an Antarctic Ascidian Frontiers

Mining and characterization of the PKS–NRPS hybrid for epicoccamide A: a mannosylated tetramate derivative from Epicoccum sp. CPCC 400996 - Microbial Cell Factories

Mining and characterization of the PKS–NRPS hybrid for epicoccamide A: a mannosylated tetramate derivative from Epicoccum sp. CPCC 400996 Microbial Cell Factories

Fungal NRPS-PKS Hybrid Enzymes Biosynthesize New γ-Lactam Compounds, Taslactams A-D, Analogous to Actinomycete Proteasome Inhibitors - ACS Publications

Fungal NRPS-PKS Hybrid Enzymes Biosynthesize New γ-Lactam Compounds, Taslactams A-D, Analogous to Actinomycete Proteasome Inhibitors ACS Publications

Identification of fungus-growing termite-associated halogenated-PKS maduralactomycin a as a potential inhibitor of MurF protein of multidrug-resistant Acinetobacter baumannii - Frontiers

Identification of fungus-growing termite-associated halogenated-PKS maduralactomycin a as a potential inhibitor of MurF protein of multidrug-resistant Acinetobacter baumannii Frontiers

Structural and Mechanistic Insights into Chain Release of the Polyene PKS Thioesterase Domain - ACS Publications

Structural and Mechanistic Insights into Chain Release of the Polyene PKS Thioesterase Domain ACS Publications

Genomic and clinical characterization of Klebsiella pneumoniae carrying the pks island - Frontiers

Genomic and clinical characterization of Klebsiella pneumoniae carrying the pks island Frontiers

Reconstitution of a Highly Reducing Type II PKS System Reveals 6π-Electrocyclization Is Required for o-Dialkylbenzene Biosynthesis - ACS Publications

Reconstitution of a Highly Reducing Type II PKS System Reveals 6π-Electrocyclization Is Required for o-Dialkylbenzene Biosynthesis ACS Publications

Seven Cyclization Patterns of Type II PKS Yield Fluorescent Compounds, Including Fungal-Type Folded Globismycin A - ACS Publications

Seven Cyclization Patterns of Type II PKS Yield Fluorescent Compounds, Including Fungal-Type Folded Globismycin A ACS Publications

Characterization of Polyketide Synthase Machinery from the pks Island Facilitates Isolation of a Candidate Precolibactin - ACS Publications

Characterization of Polyketide Synthase Machinery from the pks Island Facilitates Isolation of a Candidate Precolibactin ACS Publications

A Type I/Type III PKS Hybrid Generates Cinnamomycin A–D - ACS Publications

A Type I/Type III PKS Hybrid Generates Cinnamomycin A–D ACS Publications

Biosynthesis of trans-AT PKS-Derived Shuangdaolides Featuring a trans-acting Enzyme for Online Epoxidation - ACS Publications

Biosynthesis of trans-AT PKS-Derived Shuangdaolides Featuring a trans-acting Enzyme for Online Epoxidation ACS Publications

Pks‐positive Escherichia coli in tumor tissue and surrounding normal mucosal tissue of colorectal cancer patients - Wiley Online Library

Pks‐positive Escherichia coli in tumor tissue and surrounding normal mucosal tissue of colorectal cancer patients Wiley Online Library

Reconstitution of a Highly Reducing Type II PKS System Reveals 6π-Electrocyclization Is Required for o-Dialkylbenzene Biosynthesis - ACS Publications

Reconstitution of a Highly Reducing Type II PKS System Reveals 6π-Electrocyclization Is Required for o-Dialkylbenzene Biosynthesis ACS Publications

Genome-Mining-Guided Discovery and Characterization of the PKS-NRPS-Hybrid Polyoxyperuin Produced by a Marine-Derived Streptomycete - ACS Publications

Genome-Mining-Guided Discovery and Characterization of the PKS-NRPS-Hybrid Polyoxyperuin Produced by a Marine-Derived Streptomycete ACS Publications

Genus level analysis of PKS-NRPS and NRPS-PKS hybrids reveals their origin in Aspergilli - BMC Genomics

Genus level analysis of PKS-NRPS and NRPS-PKS hybrids reveals their origin in Aspergilli BMC Genomics

Reprogramming of the antimycin NRPS-PKS assembly lines inspired by gene evolution - Nature

Reprogramming of the antimycin NRPS-PKS assembly lines inspired by gene evolution Nature

An Overview of the Medicinally Important Plant Type III PKS Derived Polyketides - Frontiers

An Overview of the Medicinally Important Plant Type III PKS Derived Polyketides Frontiers

Variations of Indole Metabolites and NRPS-PKS Loci in Two Different Virulent Strains of Xenorhabdus hominickii - Frontiers

Variations of Indole Metabolites and NRPS-PKS Loci in Two Different Virulent Strains of Xenorhabdus hominickii Frontiers

Taxogenomic and Comparative Genomic Analysis of the Genus Saccharomonospora Focused on the Identification of Biosynthetic Clusters PKS and NRPS - Frontiers

Taxogenomic and Comparative Genomic Analysis of the Genus Saccharomonospora Focused on the Identification of Biosynthetic Clusters PKS and NRPS Frontiers

Genome of Labrenzia sp. PHM005 Reveals a Complete and Active Trans-AT PKS Gene Cluster for the Biosynthesis of Labrenzin - Frontiers

Genome of Labrenzia sp. PHM005 Reveals a Complete and Active Trans-AT PKS Gene Cluster for the Biosynthesis of Labrenzin Frontiers

Merging the computational design of chimeric type I polyketide synthases with enzymatic pathways for chemical biosynthesis - Nature

Merging the computational design of chimeric type I polyketide synthases with enzymatic pathways for chemical biosynthesis Nature

A ring accelerator? Unusual jet dynamics in the IceCube candidate PKS 1502+106 - Oxford Academic

A ring accelerator? Unusual jet dynamics in the IceCube candidate PKS 1502+106 Oxford Academic

Structural snapshots of the minimal PKS system responsible for octaketide biosynthesis - Nature

Structural snapshots of the minimal PKS system responsible for octaketide biosynthesis Nature

Antibacterial Compounds-Macrolactin Alters the Soil Bacterial Community and Abundance of the Gene Encoding PKS - Frontiers

Antibacterial Compounds-Macrolactin Alters the Soil Bacterial Community and Abundance of the Gene Encoding PKS Frontiers

Lithospheric deformation revealed by teleseismic phases SKS PKS and SKKS splitting in the NE margin of the Tibetan plateau - Frontiers

Lithospheric deformation revealed by teleseismic phases SKS PKS and SKKS splitting in the NE margin of the Tibetan plateau Frontiers

Ketide Synthase (KS) Domain Prediction and Analysis of Iterative Type II PKS Gene in Marine Sponge-Associated Actinobacteria Producing Biosurfactants and Antimicrobial Agents - Frontiers

Ketide Synthase (KS) Domain Prediction and Analysis of Iterative Type II PKS Gene in Marine Sponge-Associated Actinobacteria Producing Biosurfactants and Antimicrobial Agents Frontiers

Characterization of Miharamycin Biosynthesis Reveals a Hybrid NRPS–PKS to Synthesize High-Carbon Sugar from a Complex Nucleoside - ACS Publications

Characterization of Miharamycin Biosynthesis Reveals a Hybrid NRPS–PKS to Synthesize High-Carbon Sugar from a Complex Nucleoside ACS Publications

The Mosaic Architecture of NRPS-PKS in the Arbuscular Mycorrhizal Fungus Gigaspora margarita Shows a Domain With Bacterial Signature - Frontiers

The Mosaic Architecture of NRPS-PKS in the Arbuscular Mycorrhizal Fungus Gigaspora margarita Shows a Domain With Bacterial Signature Frontiers

Fecal Microbiota Transplantation Influences Procarcinogenic Escherichia coli in Recipient Recurrent Clostridioides difficile Patients - ScienceDirect.com

Fecal Microbiota Transplantation Influences Procarcinogenic Escherichia coli in Recipient Recurrent Clostridioides difficile Patients ScienceDirect.com

Evolution and Diversity of Assembly-Line Polyketide Synthases - ACS Publications

Evolution and Diversity of Assembly-Line Polyketide Synthases ACS Publications

Full-length title: NRPPUR database search and in vitro analysis identify an NRPS-PKS biosynthetic gene cluster with a potential antibiotic effect - BMC Bioinformatics

Full-length title: NRPPUR database search and in vitro analysis identify an NRPS-PKS biosynthetic gene cluster with a potential antibiotic effect BMC Bioinformatics

Genome mining of novel rubiginones from Streptomyces sp. CB02414 and characterization of the post-PKS modification steps in rubiginone biosynthesis - Microbial Cell Factories

Genome mining of novel rubiginones from Streptomyces sp. CB02414 and characterization of the post-PKS modification steps in rubiginone biosynthesis Microbial Cell Factories

The polyketide to fatty acid transition in the evolution of animal lipid metabolism - Nature

The polyketide to fatty acid transition in the evolution of animal lipid metabolism Nature

On-PKS Baeyer–Villiger-Type O-Atom Insertion Catalyzed by Luciferase-Like Monooxygenase OvmO during Olimycin Biosynthesis - ACS Publications

On-PKS Baeyer–Villiger-Type O-Atom Insertion Catalyzed by Luciferase-Like Monooxygenase OvmO during Olimycin Biosynthesis ACS Publications

Modeling Linear and Cyclic PKS Intermediates through Atom Replacement - ACS Publications

Modeling Linear and Cyclic PKS Intermediates through Atom Replacement ACS Publications

Actinorhodin Biosynthesis: Structural Requirements for Post-PKS Tailoring Intermediates Revealed by Functional Analysis of ActVI-ORF1 Reductase - ACS Publications

Actinorhodin Biosynthesis: Structural Requirements for Post-PKS Tailoring Intermediates Revealed by Functional Analysis of ActVI-ORF1 Reductase ACS Publications

Biosynthesis, Synthesis, and Activities of Barnesin A, a NRPS-PKS Hybrid Produced by an Anaerobic Epsilonproteobacterium - ACS Publications

Biosynthesis, Synthesis, and Activities of Barnesin A, a NRPS-PKS Hybrid Produced by an Anaerobic Epsilonproteobacterium ACS Publications

Mapping the biosynthetic pathway of a hybrid polyketide-nonribosomal peptide in a metazoan - Nature

Mapping the biosynthetic pathway of a hybrid polyketide-nonribosomal peptide in a metazoan Nature

Initiating polyketide biosynthesis by on-line methyl esterification - Nature

Initiating polyketide biosynthesis by on-line methyl esterification Nature

Quasi-periodic oscillation detected in blazar PKS 0405-385 - Phys.org

Quasi-periodic oscillation detected in blazar PKS 0405-385 Phys.org

Biosynthesis of the mycotoxin tenuazonic acid by a fungal NRPS–PKS hybrid enzyme - Nature

Biosynthesis of the mycotoxin tenuazonic acid by a fungal NRPS–PKS hybrid enzyme Nature

Evolution of combinatorial diversity in trans -acyltransferase polyketide synthase assembly lines across bacteria - Nature

Evolution of combinatorial diversity in trans -acyltransferase polyketide synthase assembly lines across bacteria Nature

Thermolides, Potent Nematocidal PKS-NRPS Hybrid Metabolites from Thermophilic Fungus Talaromyces thermophilus - ACS Publications

Thermolides, Potent Nematocidal PKS-NRPS Hybrid Metabolites from Thermophilic Fungus Talaromyces thermophilus ACS Publications

The role of the iterative modules in polyketide synthase evolution - PNAS

The role of the iterative modules in polyketide synthase evolution PNAS

Flavipesides A–C, PKS-NRPS Hybrids as Pancreatic Lipase Inhibitors from a Marine Sponge Symbiotic Fungus Aspergillus flavipes 164013 - ACS Publications

Flavipesides A–C, PKS-NRPS Hybrids as Pancreatic Lipase Inhibitors from a Marine Sponge Symbiotic Fungus Aspergillus flavipes 164013 ACS Publications

Mutational signature in colorectal cancer caused by genotoxic pks+ E. coli - Nature

Mutational signature in colorectal cancer caused by genotoxic pks+ E. coli Nature

Griseorhodins D–F, Neuroactive Intermediates and End Products of Post-PKS Tailoring Modification in Griseorhodin Biosynthesis - ACS Publications

Griseorhodins D–F, Neuroactive Intermediates and End Products of Post-PKS Tailoring Modification in Griseorhodin Biosynthesis ACS Publications

Discovery of type II polyketide synthase-like enzymes for the biosynthesis of cispentacin - Nature

Discovery of type II polyketide synthase-like enzymes for the biosynthesis of cispentacin Nature

The chejuenolide biosynthetic gene cluster harboring an iterative trans -AT PKS system in Hahella chejuensis strain MB-1084 - Nature

The chejuenolide biosynthetic gene cluster harboring an iterative trans -AT PKS system in Hahella chejuensis strain MB-1084 Nature

Screening and Transcriptional Analysis of Polyketide Synthases and Non-ribosomal Peptide Synthetases in Bacterial Strains From Krubera–Voronja Cave - Frontiers

Screening and Transcriptional Analysis of Polyketide Synthases and Non-ribosomal Peptide Synthetases in Bacterial Strains From Krubera–Voronja Cave Frontiers

Predicting the chemical space of fungal polyketides by phylogeny-based bioinformatics analysis of polyketide synthase-nonribosomal peptide synthetase and its modification enzymes - Nature

Predicting the chemical space of fungal polyketides by phylogeny-based bioinformatics analysis of polyketide synthase-nonribosomal peptide synthetase and its modification enzymes Nature

Biosynthesis of aromatic polyketides in microorganisms using type II polyketide synthases - Microbial Cell Factories

Biosynthesis of aromatic polyketides in microorganisms using type II polyketide synthases Microbial Cell Factories

Colossal black holes locked in dance at heart of galaxy - Phys.org

Colossal black holes locked in dance at heart of galaxy Phys.org

Suzaku observations find X-ray intraday variability of the blazar PKS 2155−304 - Phys.org

Suzaku observations find X-ray intraday variability of the blazar PKS 2155−304 Phys.org

Biosynthesis of lovastatin and related metabolites formed by fungal iterative PKS enzymes - Wiley Online Library

Biosynthesis of lovastatin and related metabolites formed by fungal iterative PKS enzymes Wiley Online Library

DHN melanin biosynthesis in the plant pathogenic fungus Botrytis cinerea is based on two developmentally regulated key enzyme (PKS)-encoding genes - Wiley Online Library

DHN melanin biosynthesis in the plant pathogenic fungus Botrytis cinerea is based on two developmentally regulated key enzyme (PKS)-encoding genes Wiley Online Library

Astronomers investigate supermassive black hole in the radio galaxy PKS 2251+11 - Phys.org

Astronomers investigate supermassive black hole in the radio galaxy PKS 2251+11 Phys.org

Doomed quasar is heading for a powerful explosion - Phys.org

Doomed quasar is heading for a powerful explosion Phys.org

Front stage with the PKS - Inside Indonesia

Front stage with the PKS Inside Indonesia

An HR-PKS stereo surprise - Nature

An HR-PKS stereo surprise Nature

Escherichia coli induces DNA damage in vivo and triggers genomic instability in mammalian cells - PNAS

Escherichia coli induces DNA damage in vivo and triggers genomic instability in mammalian cells PNAS

Influence of temperature on the chemical compositions and microstructural changes of ash formed from palm kernel shell - ScienceDirect.com

Influence of temperature on the chemical compositions and microstructural changes of ash formed from palm kernel shell ScienceDirect.com

Insights into polyketide biosynthesis gained from repurposing antibiotic-producing polyketide synthases to produce fuels and chemicals - Nature

Insights into polyketide biosynthesis gained from repurposing antibiotic-producing polyketide synthases to produce fuels and chemicals Nature

The elusive pragmatist who transformed political Islam in Indonesia - Lowy Institute

The elusive pragmatist who transformed political Islam in Indonesia Lowy Institute

An anti-feminist wave in Indonesia’s election? - New Mandala

An anti-feminist wave in Indonesia’s election? New Mandala

China`s Jinchun to in vest Rp9 trillion in North Maluku - ANTARA News

China`s Jinchun to in vest Rp9 trillion in North Maluku ANTARA News

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