Metabolism, cell growth and the bacterial cell cycle
... test any of the hypotheses about the factors governing the initiation of chromosome replication. Moreover, a wealth of data suggests that the factors triggering initiation differ depending on growth rate45,47,48. For these reasons, we favour an integrated model in which multiple factors control orig ...
... test any of the hypotheses about the factors governing the initiation of chromosome replication. Moreover, a wealth of data suggests that the factors triggering initiation differ depending on growth rate45,47,48. For these reasons, we favour an integrated model in which multiple factors control orig ...
Insulin and insulin-like growth factor I (IGF I) in early
... (Heath et al. 1981). Another cell line, teratoma-derived line 1246-3A, produce a polypeptide growth factor tentatively called IRF (insulin-related factor), which is structurally and biochemically similar to pancreatic insulin but different from IGF I and IGF II (Yamada and Serrero, 1988). The same a ...
... (Heath et al. 1981). Another cell line, teratoma-derived line 1246-3A, produce a polypeptide growth factor tentatively called IRF (insulin-related factor), which is structurally and biochemically similar to pancreatic insulin but different from IGF I and IGF II (Yamada and Serrero, 1988). The same a ...
An introduction to the enzyme - Xylanase
... (mainly xylan) and lignin are closely joined together. Organic wastes from renewable forest and agricultural residues comprise polysaccharides like cellulose, hemicellulose and lignin in the average ratio of 4:3:3.The exact percentage of these, however, varies from source to source. Cellulose is the ...
... (mainly xylan) and lignin are closely joined together. Organic wastes from renewable forest and agricultural residues comprise polysaccharides like cellulose, hemicellulose and lignin in the average ratio of 4:3:3.The exact percentage of these, however, varies from source to source. Cellulose is the ...
mycoplasmas in tissue culture
... no chemically defined medium has yet been devised even for the least exacting members of this group. Present knowledge is based on the results obtained with partially defined medium and with only a few strains of mycoplasma. Nevertheless, it is clear that there is wide variation in the nutritional r ...
... no chemically defined medium has yet been devised even for the least exacting members of this group. Present knowledge is based on the results obtained with partially defined medium and with only a few strains of mycoplasma. Nevertheless, it is clear that there is wide variation in the nutritional r ...
FUNCTIONAL ANATOMY OF PROKARYOTES AND EUKARYOTES
... Simple diffusion: Movement of a solute from an area of high concentration to an area of low concentration. ...
... Simple diffusion: Movement of a solute from an area of high concentration to an area of low concentration. ...
Barrett Esophagus Barrett esophagus
... Barrett esophagus is a complication of chronic GERD that is characterized by intestinal metaplasia within the esophageal squamous mucosa. The incidence of Barrett esophagus is rising; it is estimated to occur in as many as 10% of persons with symptomatic GERD. White males are affected most often and ...
... Barrett esophagus is a complication of chronic GERD that is characterized by intestinal metaplasia within the esophageal squamous mucosa. The incidence of Barrett esophagus is rising; it is estimated to occur in as many as 10% of persons with symptomatic GERD. White males are affected most often and ...
The proPO and clotting system in crustaceans
... arthropods is rapidly progressing, whereas shrimp immunity research has been a subject of minor interest compared to similar research performed on other crustaceans and insects. The penaeid shrimp can be a good model to use mainly because they are short lived compared to many other crustaceans. In t ...
... arthropods is rapidly progressing, whereas shrimp immunity research has been a subject of minor interest compared to similar research performed on other crustaceans and insects. The penaeid shrimp can be a good model to use mainly because they are short lived compared to many other crustaceans. In t ...
ANTIGENS IN IMMUNITY XV. ULTRASZl~IlcroRAL
... brane (Fig. 4). Processes varied in thickness throughout their length; the terminal regions displayed marked exility with featureless cytoplasmic content. The profusion of fine processes and the relative infrequency of reticular cell bodies in any plane of section suggested that each cell emitted a ...
... brane (Fig. 4). Processes varied in thickness throughout their length; the terminal regions displayed marked exility with featureless cytoplasmic content. The profusion of fine processes and the relative infrequency of reticular cell bodies in any plane of section suggested that each cell emitted a ...
PROTEINS IN NUCLEOCYTOPLASMIC INTERACTIONS III
... groups of cells in early cytokinesis were selected within a period of several minutes and kept without food. T h e nuclei of a given synchronized group were isolated at a prescribed interval after cytokinesis, with the first group isolated 15 min after the completion of cell division. Before 15 rain ...
... groups of cells in early cytokinesis were selected within a period of several minutes and kept without food. T h e nuclei of a given synchronized group were isolated at a prescribed interval after cytokinesis, with the first group isolated 15 min after the completion of cell division. Before 15 rain ...
Lysosomal enzymes and inflammation
... higher-speed centrifugation sedimented the mitochondria into a fairly compact pellet, which contained morphologically recognizable mitochondria (Hogeboom, Schneider, and Pallade, 1948); it was soon found that this 'mitochondrial pellet' contained two distinct components, a light and a heavy fraction ...
... higher-speed centrifugation sedimented the mitochondria into a fairly compact pellet, which contained morphologically recognizable mitochondria (Hogeboom, Schneider, and Pallade, 1948); it was soon found that this 'mitochondrial pellet' contained two distinct components, a light and a heavy fraction ...
Movement and Remodeling of the Endoplasmic
... specificity on ER modeling, the effects of the tail domain of XIJ fused to eYFP were tested in parallel. ER network movement is quite different when cells coexpress the myosin XIK tail domain (Figure 2; see Supplemental Movie 2 online, representative of 27 cells) or are treated with latrunculin b (F ...
... specificity on ER modeling, the effects of the tail domain of XIJ fused to eYFP were tested in parallel. ER network movement is quite different when cells coexpress the myosin XIK tail domain (Figure 2; see Supplemental Movie 2 online, representative of 27 cells) or are treated with latrunculin b (F ...
Suffix Meaning -ac pertaining to
... -fication -fida -form -fusion -gen -genesis -genic -globin -globulin -grade -gram -graph -graphy -gravida -hexia -ia -iac ...
... -fication -fida -form -fusion -gen -genesis -genic -globin -globulin -grade -gram -graph -graphy -gravida -hexia -ia -iac ...
1. (a) cells if more than one box is ticked, award no mark 1 (b) tail 1
... it has no chloroplasts or no chlorophyll (ii) ...
... it has no chloroplasts or no chlorophyll (ii) ...
Merlin and Expanded interact - Development
... (Xu and Gutmann, 1998). Consistent with this observation, overexpression of Merlin in vertebrate cultured cells causes transient alterations in the F-actin cytoskeleton (Gutmann et al., 1999). Work from several laboratories indicates that Merlin can form homotypic dimers, and heterotypic dimers with ...
... (Xu and Gutmann, 1998). Consistent with this observation, overexpression of Merlin in vertebrate cultured cells causes transient alterations in the F-actin cytoskeleton (Gutmann et al., 1999). Work from several laboratories indicates that Merlin can form homotypic dimers, and heterotypic dimers with ...
dependent endoderm cell fate specification - EvoDevo
... Background: Gastrulation is a uniquely metazoan character, and its genesis was arguably the key step that enabled the remarkable diversification within this clade. The process of gastrulation involves two tightly coupled events during embryogenesis of most metazoans. Morphogenesis produces a distinc ...
... Background: Gastrulation is a uniquely metazoan character, and its genesis was arguably the key step that enabled the remarkable diversification within this clade. The process of gastrulation involves two tightly coupled events during embryogenesis of most metazoans. Morphogenesis produces a distinc ...
Full-Text PDF
... specific SS. This plays an important role as the consensus sequences that make up the 51 SS, 31 SS and BPS are degenerate in higher eukaryotes where alternative splicing is predominant [5]. This also results in SS alone not being capable of efficiently directing spliceosomal assembly. SR and hnRNP p ...
... specific SS. This plays an important role as the consensus sequences that make up the 51 SS, 31 SS and BPS are degenerate in higher eukaryotes where alternative splicing is predominant [5]. This also results in SS alone not being capable of efficiently directing spliceosomal assembly. SR and hnRNP p ...
Molecular Plant-Microbe Interaction
... When mycorrhizal roots were inoculated with P. parasitica, the length of necrotic root and the number of pathogen hyphae were significantly (P ≤ 0.05) reduced, by 79.2 and 88.5%, respectively, compared with nonmycorrhizal roots. P. parasitica development in mycorrhizal tissues was uniquely intercell ...
... When mycorrhizal roots were inoculated with P. parasitica, the length of necrotic root and the number of pathogen hyphae were significantly (P ≤ 0.05) reduced, by 79.2 and 88.5%, respectively, compared with nonmycorrhizal roots. P. parasitica development in mycorrhizal tissues was uniquely intercell ...
Xyloglucan and its Interactions with Other Components of the
... improves xyloglucan solubility and prevents self-association and aggregation in these xyloglucan variants that have relatively low substitution (Sims et al. 1998). One might surmise that grass xyloglucans bind more tightly to cellulose than do the more highly substituted xyloglucans of other plant g ...
... improves xyloglucan solubility and prevents self-association and aggregation in these xyloglucan variants that have relatively low substitution (Sims et al. 1998). One might surmise that grass xyloglucans bind more tightly to cellulose than do the more highly substituted xyloglucans of other plant g ...
gland - Sinoe Medical Association
... •Merocrine glands — cells secrete their substances by exocytosis (e.g., (e g mucous and serous glands). glands) Also called "eccrine". •Apocrine glands — a portion of the secreting cell's body is lost during secretion. Apocrine gland is often used to refer to the apocrine sweat glands, however it is ...
... •Merocrine glands — cells secrete their substances by exocytosis (e.g., (e g mucous and serous glands). glands) Also called "eccrine". •Apocrine glands — a portion of the secreting cell's body is lost during secretion. Apocrine gland is often used to refer to the apocrine sweat glands, however it is ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).