The complete sequence of a heterochromatic island from a higher eukaryote. The Cold Spring Harbor Laboratory, Washington University Genome Sequencing Center, and PE Biosystems Arabidopsis Sequencing Consortium.
Heterochromatin, constitutively condensed chromosomal material, is widespread among eukaryotes but incompletely characterized at the nucleotide level. We have sequenced and analyzed 2.1 megabases (Mb) of Arabidopsis thaliana chromosome 4 that includes 0.5-0.7 Mb of isolated heterochromatin that resembles the chromosomal knobs described by Barbara McClintock in maize.
This isolated region has a low density of expressed genes, low levels of recombination and a low incidence of genetrap insertion. Satellite repeats were absent, but tandem arrays of long repeats and many transposons were found. Methylation of these sequences was dependent on chromatin remodeling. Clustered repeats were associated with condensed chromosomal domains elsewhere. The complete sequence of a heterochromatic island provides an opportunity to study sequence determinants of chromosome condensation.
Description: A sandwich ELISA for quantitative measurement of Human Galectin 1 in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A sandwich ELISA for quantitative measurement of Human Galectin 1 in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A sandwich ELISA for quantitative measurement of Human Galectin 1 in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: This monoclonal antibody is for studies of antigen expression in cells and tissue sections using immunocytochemistry and immunoprecipitation
Description: Enzyme-linked immunosorbent assay kit for quantification of Human Galectin-1 in samples from serum, plasma, tissue homogenates and other biological fluids.
Description: Lectins, of either plant or animal origin, are carbohydrate binding proteins that interact with glycoprotein and glycolipids on the surface of animal cells. The Galectins are lectins that recognize and interact with β-galactoside moieties. Galectin-1 is an animal lectin that has been shown to interact with CD3, CD4, and CD45. It induces apoptosis of activated T-cells and T-leukemia cell lines and inhibits the protein phosphatase activity of CD45. Recombinant human Galectin-1 is a 14.5 kDa protein containing 134 amino acid residues.
Description: This is Double-antibody Sandwich Chemiluminescent immunoassay for detection of Human Galectin 1 (GAL1) in serum, plasma and other biological fluids.
Description: This is Double-antibody Sandwich Chemiluminescent immunoassay for detection of Human Galectin 1 (GAL1) in serum, plasma and other biological fluids.
Description: This is Double-antibody Sandwich Chemiluminescent immunoassay for detection of Human Galectin 1 (GAL1) in serum, plasma and other biological fluids.
Description: This is Double-antibody Sandwich Chemiluminescent immunoassay for detection of Human Galectin 1 (GAL1) in serum, plasma and other biological fluids.
Description: Quantitativesandwich ELISA kit for measuring Human Galectin-1 (LGALS1) in samples from serum, plasma, tissue homogenates, cell lysates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativesandwich ELISA kit for measuring Human Galectin-1(LGALS1) in samples from serum, plasma, tissue homogenates, cell lysates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: A competitive ELISA for quantitative measurement of Human Galectin-1(LGALS1) in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Galectin-1(LGALS1) in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Galectin-1(LGALS1) in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Human Galectin-1 (Gal-1) Antibody (Biotin Conjugate)
Description: A sandwich quantitative ELISA assay kit for detection of Human Galectin 1 (GAL1) in samples from serum, plasma, tissue homogenates, cell lysates, cell culture supernates or other biological fluids.
Description: A sandwich quantitative ELISA assay kit for detection of Human Galectin 1 (GAL1) in samples from serum, plasma, tissue homogenates, cell lysates, cell culture supernates or other biological fluids.
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Galectin 1 (GAL1) in serum, plasma, tissue homogenates and other biological fluids.
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Galectin 1 (GAL1) in serum, plasma, tissue homogenates and other biological fluids.
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Galectin 1 (GAL1) in serum, plasma, tissue homogenates and other biological fluids.
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Galectin 1 (GAL1) in serum, plasma, tissue homogenates and other biological fluids.
Description: Enzyme-linked immunosorbent assay based on the Double-antibody Sandwich method for detection of Human Galectin 1 (GAL1) in samples from serum, plasma, tissue homogenates and other biological fluids with no significant corss-reactivity with analogues from other species.
Description: Galectin-1 is a protein that in humans is encoded by the LGALS1 gene. The galectins are a family of beta-galactoside-binding proteins implicated in modulating cell-cell and cell-matrix interactions. Galectin-1 may act as an autocrine negative growth factor that regulates cell proliferation. Galectin-1 expression in Hodgkin Lymphoma has also been shown to mediate immunosuppression of CD8+ T-cells. It is thought to play a role in creatingimmune tolerance in pregnancy. It has been found that Galectin-1-mediated production of IL6 may assist in augmenting the innate immune response against NiV. Galectin-1 may also be a significant factor that augments the efficiency of the HIV-1 infection process.
Description: Galectin-1 is a protein that in humans is encoded by the LGALS1 gene. The galectins are a family of beta-galactoside-binding proteins implicated in modulating cell-cell and cell-matrix interactions. Galectin-1 may act as an autocrine negative growth factor that regulates cell proliferation. Galectin-1 expression in Hodgkin Lymphoma has also been shown to mediate immunosuppression of CD8+ T-cells. It is thought to play a role in creating immune tolerance in pregnancy. It has been found that Galectin-1-mediated production of IL6 may assist in augmenting the innate immune response against NiV. Galectin-1 may also be a significant factor that augments the efficiency of the HIV-1 infection process.
Description: Galectin-1 is a protein that in humans is encoded by the LGALS1 gene. The galectins are a family of beta-galactoside-binding proteins implicated in modulating cell-cell and cell-matrix interactions. Galectin-1 may act as an autocrine negative growth factor that regulates cell proliferation. Galectin-1 expression in Hodgkin Lymphoma has also been shown to mediate immunosuppression of CD8+ T-cells. It is thought to play a role in creating immune tolerance in pregnancy. It has been found that Galectin-1-mediated production of IL6 may assist in augmenting the innate immune response against NiV. Galectin-1 may also be a significant factor that augments the efficiency of the HIV-1 infection process.
Description: Quantitative sandwich ELISA for measuring Human Galectin-1 (LGALS1) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.
Description: Quantitative sandwich ELISA for measuring Human Galectin-1 (LGALS1) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.
Description: Quantitative sandwich ELISA for measuring Human Galectin-1 (LGALS1) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.
Description: A sandwich ELISA kit for detection of Galectin 1 from Human in samples from blood, serum, plasma, cell culture fluid and other biological fluids.
Supramolecular insight into the substitution of sulfur by selenium, based on crystal structures, quantum-chemical calculations and biosystem recognition
Statistical analysis of data from crystal structures extracted from the Cambridge Structural Database (CSD) has shown that S and Se atoms display a similar tendency towards specific types of interaction if they are part of a fragment that corresponds to the side chains of cysteine (Cys), methionine (Met) selenocysteine (Sec) and selenomethionine (Mse).
The most numerous are structures with C-H…Se and C-H…S interactions (∼80%), notably less numerous are structures with Se…Se and S…S interactions (∼5%), and Se…π and S…π interactions are the least numerous.
The results of quantum-chemical calculations have indicated that C-H…Se (∼-0.8 kcal mol-1) and C-H...S interactions are weaker than the most stable parallel interaction (∼-3.3 kcal mol-1) and electrostatic interactions of σ/π type (∼-2.6 kcal mol-1).
Their significant presence can be explained by the abundance of CH groups compared with the numbers of Se and S atoms in the crystal structures, and also by the influence of substituents bonded to the Se or S atom that further reduce their possibilities for interacting with species from the environment.
This can also offer an explanation as to why O-H…Se (∼-4.4 kcal mol-1) and N-H…Se interactions (∼-2.2 kcal mol-1) are less numerous. Docking studies revealed that S and Se rarely participate in interactions with the amino acid residues of target enzymes, mostly because those residues preferentially interact with the substituents bonded to Se and S.
The differences between Se and S ligands in the number and positions of their binding sites are more pronounced if the substituents are polar and if there are more Se/S atoms in the ligand.
A simple biosystem for the high-yielding cascade conversion of racemic alcohols to enantiopure amines
The amination of racemic alcohols to produce enantiopure amines is an important green chemistry reaction for pharmaceutical manufacturing, requiring simple and efficient solutions. Here we developed a novel concept and the simplest system for ADH-TA-catalyzed cascade reaction to aminate racemic alcohols, which utilizes an ambidextrous ADH to oxidize a racemic alcohol, an enantioselective transaminase to convert the ketone intermediate to chiral amine, and isopropylamine to recycle PMP and NAD + cofactors via the reversed cascade reactions.
The concept was proven by using an ambidextrous CpSADH-W286A engineered from ( S )-enantioselective CpSADH as the first example of evolving ambidextrous ADHs, an enantioselective BmTA, and isopropylamine. A biosystem containing isopropylamine and the cells of E. coli (CpSADH-W286A/BmTA) expressing the two enzymes was developed for the amination of racemic alcohols to produce eight useful and high-value ( S )-amines in 72-99% yield and 98-99% ee , providing with a simple and practical solution to this type of reaction.
Evaluation of chromosomal insertion loci in the Pseudomonas putida KT2440 genome for predictable biosystems design
The development of Pseudomonas strains for industrial production of fuels and chemicals will require the integration of heterologous genes and pathways into the chromosome.
Finding the most appropriate integration site to maximize strain performance is an essential part of the strain design process. We characterized seven chromosomal loci in Pseudomonas putida KT2440 for integration of a fluorescent protein expression construct. Insertion in five of the loci did not affect growth rate, but fluorescence varied by up to 27-fold.
Three sites displaying a diversity of phenotypes with the fluorescent reporter were also chosen for the integration of a gene encoding a muconate importer. Depending on the integration locus, expression of the importer varied by approximately 3-fold and produced significant phenotypic differences. This work demonstrates the impact of the integration location on host viability, gene expression, and overall strain performance.
Description: All three isoforms of GRO are CXC chemokines that can signal through the CXCR1 or CXCR2 receptors. The GRO proteins chemoattract and activate neutrophils and basophils. Recombinant murine KC is a 7.8 kDa protein consisting of 72 amino acids including the 'ELR' motif common to the CXC chemokine family that bind to CXCR1 or CXCR2.
Description: All three isoforms of GRO are CXC chemokines that can signal through the CXCR1 or CXCR2 receptors. The GRO proteins chemoattract and activate neutrophils and basophils. Recombinant rat GRO/KC is a 7.8 kDa protein consisting of 72 amino acids including the 'ELR' motif common to the CXC chemokine family that bind to CXCR1 or CXCR2.
Description: Enzyme-linked immunosorbent assay kit for quantification of Mouse CXCL1 in samples from serum, plasma, tissue homogenates and other biological fluids.
Description: Description of target: Chemokine (C-X-C motif) ligand 1 (CXCL1) is a small cytokine belonging to the CXC chemokine family that was previously called GRO1 oncogene, GROα, KC, Neutrophil-activating protein 3 (NAP-3) and melanoma growth stimulating activity, alpha (MSGA-α). In humans, this protein is encoded by the CXCL1 gene. The gene for CXCL1 is located on human chromosome 4 amongst genes for other CXC chemokines. The mature form of CXCL1 is maximally 73 amino acids long. CXCL1 is secreted by human melanoma cells, has mitogenic properties and is implicated in melanoma pathogenesis. CXCL1 is expressed by macrophages, neutrophils and epithelial cells, and has neutrophil chemoattractant activity. This chemokine elicits its effects by signaling through the chemokine receptor CXCR2.CXCL1 decreased the severity of multiple sclerosis and may offer a neuro-protective function. The standard product used in this kit is recombinant mouse CXCL1, consisting of 77 amino acids with the molecular mass of 8KDa.;Species reactivity: Mouse;Application: ELISA;Assay info: ;Sensitivity: < 1 pg/ml
Description: Description of target: This gene encodes a protein that is a member of the CXC subfamily of chemokines. Chemokines, which recruit and activate leukocytes, are classified by function (inflammatory or homeostatic) or by structure. This secretory protein is proposed to bind the G-protein coupled receptor chemokine (C-X-C motif) receptor 2 to recruit neutrophils. In mouse, deficiency of this gene is associated with colitis and with defects in immune cell recruitment to the lung.;Species reactivity: Mouse;Application: ELISA;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 6.0 pg/mL
Description: Description of target: This gene encodes a protein that is a member of the CXC subfamily of chemokines. Chemokines, which recruit and activate leukocytes, are classified by function (inflammatory or homeostatic) or by structure. This secretory protein is proposed to bind the G-protein coupled receptor chemokine (C-X-C motif) receptor 2 to recruit neutrophils. In mouse, deficiency of this gene is associated with colitis and with defects in immune cell recruitment to the lung.;Species reactivity: Mouse;Application: ELISA;Assay info: ;Sensitivity: < 6.0pg/mL
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human. This antibody is Unconjugated. Tested in the following application: ELISA, WB, IHC
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human. This antibody is Unconjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human, Mouse, Rat. This antibody is Unconjugated. Tested in the following application: IHC, ELISA;IHC:1/100-1/300.ELISA:1/10000
Description: A polyclonal antibody against Cxcl1. Recognizes Cxcl1 from Mouse. This antibody is Unconjugated. Tested in the following application: ELISA
Description: Description of target: This gene encodes a protein that is a member of the CXC subfamily of chemokines. Chemokines, which recruit and activate leukocytes, are classified by function (inflammatory or homeostatic) or by structure. This secretory protein is proposed to bind the G-protein coupled receptor chemokine (C-X-C motif) receptor 2 to recruit neutrophils. In mouse, deficiency of this gene is associated with colitis and with defects in immune cell recruitment to the lung. ;Species reactivity: Mouse;Application: ELISA;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 15.76 pg/mL
Description: CXCL1 (Chemokine, CXC motif, Ligand 1), also called GRO1, SCYB1, GROA or MGSA, is a small cytokine belonging to the CXC chemokine family that was previously called GRO1 oncogene, GRO?, KC, Neutrophil-activating protein 3 (NAP-3) and melanoma growth stimulating activity, alpha (MSGA-?). In humans, this protein is encoded by the CXCL1 gene. The CXCL1 gene is mapped on 4q13.3. CXCL1 is secreted by human melanoma cells, has mitogenic properties and is implicated in melanoma pathogenesis. It is expressed by macrophages, neutrophils and epithelial cells, and has neutrophil chemoattractant activity. CXCL1 plays a role in spinal cord development by inhibiting the migration of oligodendrocyte precursors and is involved in the processes of angiogenesis, inflammation, wound healing, and tumorigenesis. Signaling through Cxcr2, Cxcl1 inhibited oligodendrocyte precursor migration. The migrational arrest was rapid, reversible, and concentration dependent, and it reflected enhanced cell/substrate interactions. White matter expression of Cxcl1 was temporospatially regulated. Others contribute to aggressive growth selectivity in the lung. Among the lung metastasis signature genes identified, several, including CXCL1, were functionally validated.
Mouse Growth-Regulated Alpha Protein (CXCL1) ELISA Kit
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human. This antibody is HRP conjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against Cxcl1. Recognizes Cxcl1 from Mouse. This antibody is HRP conjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human. This antibody is FITC conjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against Cxcl1. Recognizes Cxcl1 from Mouse. This antibody is FITC conjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against CXCL1. Recognizes CXCL1 from Human. This antibody is Biotin conjugated. Tested in the following application: ELISA
Description: A polyclonal antibody against Cxcl1. Recognizes Cxcl1 from Mouse. This antibody is Biotin conjugated. Tested in the following application: ELISA
Description: Chemokine (C-X-C motif) Ligand 1 Protein (CXCL1) is a growth factor for melanoma cells and a chemotaxin for neutrophils and a member of the CXC chemokine family that is a potent neutrophil attractant and activator and is also active toward basophils. CXCL1 is expressed by macrophages, neutrophils and epithelial cells; it has neutrophil chemoattractant activity. CXCL1 plays a critical nonredundant role in the development of experimental Lyme arthritis and carditis via CXCR2-mediated recruitment of neutrophils into the site of infection and may also have important pro-nociceptive effects via its direct actions on sensory neurons, and may induce long-term changes that involve protein synthesis.
Description: Cxcl1, also called Gro, Gro1, Mgsa or Scyb1, is short for growth-regulated alpha protein. The protein belongs to the intercrine alpha (chemokine CxC) family. The N-terminal processed form KC(5-72) of the protein is produced by proteolytic cleavage after secretion from bone marrow stromal cells, and shows a highly enhanced hematopoietic activity. Cxcl1 has chemotactic activity for neutrophils, and contributes to neutrophil activation during inflammation. Hematoregulatory chemokine, in vitro, suppresses hematopoietic progenitor cell proliferation.
Description: A sandwich CLIA kit for quantitative measurement of Mouse GRO?/CXCL1 (Growth Regulated Oncogene Alpha) in samples from Serum, Plasma, Cell supernatant
Cxcl1 sgRNA CRISPR/Cas9 All-in-One Lentivector set (Mouse)
Description: A sandwich ELISA kit for quantitative measurement of Mouse GRO?/CXCL1 (Growth Regulated Oncogene Alpha) in samples from Serum, Plasma, Cell supernatant
Description: A polyclonal antibody raised in Goat that recognizes and binds to Human CXCL1 (C-Term). This antibody is tested and proven to work in the following applications:
