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Viscosity of the lipid bilayer of a cell membrane
In biology, membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane or a synthetic lipid membrane. Lipid packing can influence
Membrane_fluidity
Biological membrane that separates the interior of a cell from its outside environment
appropriate membrane fluidity at various temperatures. The membrane also contains membrane proteins, including integral proteins that span the membrane and serve
Cell_membrane
Enclosing or separating membrane in organisms acting as selective semi-permeable barrier
hydrophobic tails, determine the lipid bilayer physical properties such as fluidity. Membranes in cells typically define enclosed spaces or compartments in which
Biological_membrane
Subspecies of bacteria, used in yogurt
The way most cells react to the cold is by changing the fluidity of the cellular membrane, but this particular bacterium has acquired different tactics
Lactobacillus delbrueckii subsp. bulgaricus
Lactobacillus_delbrueckii_subsp._bulgaricus
Chemical compound
cell membranes. Laurdan shows this effect more evidently because of its polar characteristics. Laurdan was first applied to study membrane fluidity of live
Laurdan
Adaptation of the cell membrane lipid composition to maintain membrane fluidity
adaptation of the cell membrane lipid composition to keep the adequate membrane fluidity. The maintenance of proper cell membrane fluidity is of critical importance
Homeoviscous_adaptation
Type of membrane
Cholesterol molecules are also found throughout the plasma membrane and act as a buffer of membrane fluidity. The phospholipid bilayer is most permeable to small
Semipermeable_membrane
Model of cell membranes
phospholipid bilayer gives fluidity and elasticity to the membrane. Small amounts of carbohydrates are also found in the cell membrane. The biological model
Fluid_mosaic_model
Combination in the membranes of cells
necessary for the signal transduction. Lipid rafts influence membrane fluidity and membrane protein trafficking, thereby regulating neurotransmission and
Lipid_raft
Class of ligand activated receptors localized in surface of plama cell membrane
The membrane receptor TM4SF5 influences the migration of hepatic cells and hepatoma. Also, the cortical NMDA receptor influences membrane fluidity, and
Cell_surface_receptor
Polycyclic organic compound having sterane as a core structure
principal biological functions: as important components of cell membranes that alter membrane fluidity; and as signaling molecules. Examples include the lipid
Steroid
Topics referred to by the same term
fluidity in Wiktionary, the free dictionary. Fluidity may refer to: Reciprocal of viscosity Cognitive fluidity Fluid intelligence Membrane fluidity Sexual
Fluidity
Class of lipids
laterally through the lipid matrix and migrate over the membrane. Sterols contribute to membrane fluidity by hindering the packing together of phospholipids
Phospholipid
Carboxylic acid
melting temperature of the membrane or of the fat. Cis unsaturated fatty acids, however, increase cellular membrane fluidity, whereas trans unsaturated
Fatty_acid
Class of enzymes
regulation of cell growth and differentiation through effects on cell membrane fluidity and signal transduction. Four SCD paralogs, Scd1 through Scd4, have
Stearoyl-CoA_9-desaturase
Fat or fatty acid in which there is at least one double bond within the fatty acid chain
increasingly high cell membrane content of both monounsaturated and polyunsaturated fatty acids, to maintain greater membrane fluidity (and functionality)
Unsaturated_fat
Lipid molecules on cell membrane
of FAs chains have a profound effect on membranes' fluidity. Plant thylakoid membranes maintain high fluidity, even at relatively cold environmental temperatures
Membrane_lipid
Biological adjustment to new climates
readily available. Expression of heat shock proteins and regulation of membrane fluidity are just two of many biochemical methods organisms use to acclimate
Acclimatization
Biological synthesis and degradation of lipids
testosterone. The main function of cholesterol is controlling the cell membrane fluidity. Steroid – see also steroidogenesis: Steroids are one of the important
Lipid_metabolism
Medical condition
membrane fluidity and consequently reduce bile secretion. Bile flow was similarly reduced in rats as a result of alterations to basolateral membrane fluidity
Cholestasis
Sterol biosynthesized by all animal cells
fatty-acid chains, cholesterol increases membrane packing, which both alters membrane fluidity and maintains membrane integrity so that animal cells do not
Cholesterol
Biochemical process in which fatty acids are derived from acetyl-CoA and NADPH
biophysical properties of the cellular membrane, such as membrane fluidity, microdomain formation, and the assembly of membrane-associated signaling platforms
Fatty_acid_synthesis
Penultimate step in the activation of mammalian spermatozoa
sperm plasma membrane that cause increased membrane fluidity, pH changes, ion flux, activation of secondary pathways, and changes to membrane potential (hyperpolarization)
Capacitation
Substance with biological function
receptor found at the plasma membrane. Ion channels, transporters, G-protein coupled receptors (GPCR), and membrane fluidity have all been shown to be affected
Steroid_hormone
Family of fishes
enzymes for beta oxidation and transport proteins, thereby increasing membrane fluidity. Snailfish have an elongated, tadpole-like shape. Their heads are
Snailfish
Chemical compound
bacteria as that of sterols in eukaryotes, which involves modulating membrane fluidity. Diplopterol serves as a useful biomarker for prokaryotic life, along
Diplopterol
Biological membrane structure
thin polar membrane made of two layers of lipid molecules. These membranes form a continuous barrier around all cells. The cell membranes of almost all
Lipid_bilayer
Lab technique in biology and chemistry
signaling networks. Membrane fluidity: Flow cytometry can detect membrane fluidity by utilizing fluorescent probes that are sensitive to membrane characteristics
Flow_cytometry
Growth of bacterial colonies
adaptations are not fully studied or understood, some adaptations include membrane fluidity regulation, cold-acclimated protein synthesis, and freeze tolerance
Bacterial_growth
Species of fungus
fatty-acid unsaturation index allows Mrakia frigida to alter its membrane fluidity, and function with changing temperatures. Yamada Y, Komagata K (1987)
Mrakia_frigida
Medication for treating fungal infections
maintaining proper membrane fluidity and normal functions of the cell membrane. Ergosterol replaces cholesterol found in the cell membranes of mammalian cells
Topical_antifungal
Type of red blood cell
increase in surface area of the red blood cell membranes or may be increased red cell membrane fluidity. Alpha-thalassemia and beta-thalassemia Hemoglobin
Codocyte
Type of organic compound
example, cholesterol forms part of the cellular membrane in animals, where it affects the cell membrane's fluidity and serves as secondary messenger in developmental
Sterol
Class of lipids
in neurological disorders. These alterations result in changes in membrane fluidity and permeability. These processes along with the accumulation of lipid
Glycerophospholipid
Chemical compound
biosynthesis of cell membrane products as well as transport and catabolism. Eventually, membrane fluidity and activity of membrane bound enzymes become
Terconazole
How drugs induce reversible suppression of consciousness
potent fluidizers of natural and artificial membranes. However, changes in membrane density and fluidity in the presence of clinical concentrations of
Theories of general anaesthetic action
Theories_of_general_anaesthetic_action
Process by which an organism prepares for cold weather
abiotic stresses, like drought or salinity. When temperature drops, the membrane fluidity, RNA and DNA stability, and enzyme activity change. These, in turn
Cold_hardening
Membrane enclosed compartments in chloroplasts and cyanobacteria
thylakoid membranes have been shown to assume largely lipid-bilayer dynamic organization. Lipids forming the thylakoid membranes, rich in high-fluidity linolenic
Thylakoid
Division or infraclass of fishes
fatty acids in brain cell membranes compared to fish from warmer waters, which allows them to maintain appropriate membrane fluidity in the environments in
Teleost
Failure of cells to respond appropriately to insulin
with insulin resistance. It is hypothesized that increasing cell membrane fluidity by increasing PUFA concentration might result in an enhanced number
Insulin_resistance
Models for cell membranes
lipid-head groups at the membrane surface is compatible with their sensitivity to phospholipase digestion. Also, the fluidity of the lipid bi-layers and
Membrane_models
Chemical compound
assess the membrane damage in spermatozoa; this is crucial because oxidative stress affects sperm function by altering membrane fluidity, permeability
Malondialdehyde
Study of the effects of temperature on biology
biophysical determinant of membrane fluidity is the balance between saturated and unsaturated fatty acids. Regulating membrane fluidity is especially important
Thermobiology
move within the membrane. This then decreases membrane fluidity, allowing the cell to keep more molecules from crossing the membrane. This is an extremely
Unique properties of hyperthermophilic archaea
Unique_properties_of_hyperthermophilic_archaea
Protein domain
regulate membrane fluidity by manipulating the relative levels of saturated and unsaturated fatty acids within the phospholipids of their membrane bilayers
Fatty acid metabolism regulator protein FadR
Fatty_acid_metabolism_regulator_protein_FadR
Ability of lipid molecules to move within a bilayer relative to temperature
colloidal chemistry, one property of a lipid bilayer is the relative mobility (fluidity) of the individual lipid molecules and how this mobility changes with temperature
Lipid_bilayer_phase_behavior
Cell anatomy term
proteins and fluorescent antibody tagging of membrane proteins, which demonstrated their fluidity within the membrane. Fluid mosaic model Danielli, J. F.; Davson
Davson–Danielli_model
Chemical compound
as a precursor of cholesterol, which modulates membrane fluidity and affects ion channels, and membrane excitability. ... Studies have demonstrated that
Β-Hydroxy β-methylbutyric acid
Β-Hydroxy_β-methylbutyric_acid
BLM was used to mean either “black lipid membrane” or "bimolecular lipid membrane". This same lateral fluidity was first demonstrated conclusively on the
History of cell membrane theory
History_of_cell_membrane_theory
Class of steroids derived from plants
predominate. Sitosterol regulates membrane fluidity and permeability in a similar manner to cholesterol in mammalian cell membranes. Plant sterols can also modulate
Phytosterol
Photochemical energy transfer mechanism
integrins and membrane proteins. FRET can be used to observe membrane fluidity, movement and dispersal of membrane proteins, membrane lipid-protein and
Förster resonance energy transfer
Förster_resonance_energy_transfer
Trait change of an organism in response to environmental variation
Because maintaining membrane fluidity is critical for cell function, ectotherms adjust the phospholipid composition of their cell membranes such that the strength
Phenotypic_plasticity
Physiological response to sudden exposure to cold
The effects of a cold shock in bacteria include: Decreased cell membrane fluidity Decreased enzyme activity Decreased efficiency of transcription and
Cold_shock_response
Chemical compound
disrupts the potential of the membrane and causes mitochondrial lumps. All of these effects bet on membrane fluidity. It is thought that agaric acid
Agaric_acid
Inhalational anesthetic
plasma membrane calcium ATPases (PMCAs) which affects membrane fluidity by hindering the flow of Ca2+ (calcium ions) out across the membrane, this in
Isoflurane
Oxygen-delivering blood cell and the most common type of blood cell
defines many physical properties such as membrane permeability and fluidity. Additionally, the activity of many membrane proteins is regulated by interactions
Red_blood_cell
Genetic alteration of a cell by uptake of genetic material from the environment
increasing the ratio of ionic to covalent bonds, which increases membrane fluidity, facilitating transformation. The role of lipopolysaccharides here
Genetic_transformation
Species of fish
abundance of polyunsaturated fatty acids that allow cells to maintain membrane fluidity. N. coriiceps has a limited tolerance for acute temperature change
Notothenia_coriiceps
Class of enzymes
Cholesterol serves multiple roles in the cell including modulating membrane fluidity serving as a precursor to steroid hormones. In fungi C5SD catalyzes
C-5_sterol_desaturase
Species of bacterium
fatty acid composition of its membrane in response to different carbon sources which helps to maintain membrane fluidity and essential biological functions
Rhodococcus_erythropolis
Class of chemical compounds
membrane fluidity and serve other functions in eukaryotes. Although hopanoids do not rescue sterol deficiency, they are thought to increase membrane rigidity
Hopanoids
Arienti G (July 1997). "Fusion of sperm with prostasomes: effects on membrane fluidity". Archives of Biochemistry and Biophysics. 343 (1): 6–12. doi:10.1006/abbi
Prostasomes
Species of fungus
A (February 2004). "Salt-induced changes in lipid composition and membrane fluidity of halophilic yeast-like melanized fungi". Extremophiles. 8 (1): 53–61
Hortaea_werneckii
Species of bacterium
of increasing membrane fluidity by reducing packing of the fatty acid chains which results in a liquid crystal structure in the membrane rather than a
Photobacterium_profundum
Protein 1/2 Cancer Elisidepsin Irvalec Mollusk Depsipeptide Plasma Membrane Fluidity 1/2 Cancer PM00104 Zalypsis Nudibranch Alkaloid DNA-Binding 2/3 Cancer
Marine_pharmacognosy
Family of toxins from bacteria
contributes to membrane fluidity. If cholesterol concentration exceeds a certain point, free cholesterol will begin to precipitate out of the membrane. The binding
Cholesterol-dependent cytolysin
Cholesterol-dependent_cytolysin
Chemical compound
(April 1993). "Effects of the muscarinic agonist oxotremorine on membrane fluidity in rat lymphocytes". Biochemistry and Molecular Biology International
Oxotremorine
Failure of the placenta to deliver sufficient nutrients to the fetus during pregnancy
increases. These factors, increase in blood viscosity, decrease in cell membrane fluidity and platelet aggregation are important precursors in accelerating
Placental_insufficiency
Class of phospholipids
differences have been attributed to the remodeling of membrane phospholipids in order to regulate membrane fluidity and the accumulation of physiologically important
1-Lysophosphatidylcholine
Protein-coding gene in the species Homo sapiens
proteins inhibit viral membrane and cellular endosomal or lysosomal vesicle membrane fusion by modifying their lipid components or fluidity. IFITM proteins block
IFITM1
Species of archaeon
of unsaturation in the membrane. Thus, this provides evidence that M. burtonii has the ability to control its membrane fluidity (with respect to temperature)
Methanococcoides_burtonii
have been used to study the flexibility gradient of membrane lipids to understand membrane fluidity conditions at different depths of their lipid bilayer
Spin_label
French hematologist (b. 1920, d. 2006)
Mutet, Christine; Oberling, Francis; Waksman, Albert. « Decreased membrane “fluidity” of T lymphocytes from untreated patients with Hodgkin's disease »
Simone_Mayer
Species of bacterium
also known as 20:5ω3. Increased PUFA concentrations decrease the membrane fluidity and help the bacterium thrive in the cold temperatures. The exact
Shewanella_violacea
animal cells and an essential component of cell membranes, in which it serves to buffer the membrane's fluidity and plays roles in signal transduction. It
Glossary of cellular and molecular biology (0–L)
Glossary_of_cellular_and_molecular_biology_(0–L)
Chemical compound
this molecule is produced as part of a response to maintain optimal membrane fluidity. The biosynthesis of this compound was initially identified by its
Hentriacontanonaene
Class of enzymes
localize to the plasma membrane of cells, where they play an important structural role in the regulation of membrane fluidity and permeability and also
Sterol_14-demethylase
Northern Irish_American cancer researcher and academic administrator
therapies including the effects of Tamoxifen and high dose estrogens on membrane fluidity. In his studies of drug resistance and MDR1/P-glycoprotein, he published
Robert_Clarke_(academic)
violaxanthin de-epoxidase, a xanthophyll cycle enzyme, is regulated by membrane fluidity in model lipid bilayers". European Journal of Biochemistry. 269 (18):
Violaxanthin_de-epoxidase
French-American clinical professor of neurology
Boller, F; Cohen, BM; Teply, I (1987). "Family study of platelet membrane fluidity in Alzheimer's disease". Science. 238 (4826): 539–542. Bibcode:1987Sci
Francois_Boller
Medical condition
essential component of mammalian cell membranes and is required to establish proper membrane permeability and fluidity. It is not clear if a lower than average
Hypocholesterolemia
MeSH G06.535.166.310.657 – membrane potentials MeSH G06.535.166.330 – capillary permeability MeSH G06.535.166.335 – cell membrane permeability MeSH G06.535
List_of_MeSH_codes_(G06)
Genetic disorder causing red blood cells to be spherical
circulation.[citation needed] Spherocytes have less plasma membrane compliance and fluidity, and this has implications throughout the entirety of circulation
Hereditary_spherocytosis
Specialized anatomy and physiology of bacteria
optimum fluidity of the membrane (e.g. following temperature change). Gram-negative and mycobacteria have an inner and outer bacteria membrane. As a phospholipid
Bacterial_cell_structure
Chemical compound
Lipski, André (2020-01-15). "Carotenoids are used as regulators for membrane fluidity by Staphylococcus xylosus". Scientific Reports. 10 (1): 330. Bibcode:2020NatSR
Staphyloxanthin
Phylum of aquatic bacteria
Sterol synthesis is suggested to be associated with regulation of membrane fluidity in Planctomycetota, and has been described as essential to the proper
Planctomycetota
Protein-coding gene in humans
proteins (GPI-APs) become destabilized, increasing membrane fluidity, resulting in the release of BSPH1. GRCh38: Ensembl release 89: ENSG00000188334
BSPH1
Species of fungus
lipids more readily than glucose, possibly as a means to maintain membrane fluidity under low temperature conditions by increasing the proportion of unsaturated
Geomyces_pannorum
Naturally occurring chemical compound from the group of fatty acids
composition of the fatty acids in the phospholipids of the cell membrane influences their fluidity. A replacement of cis vaccenic acid by lactobacillic acid
Lactobacillic_acid
Species of sea anemone
saturated. The difference is likely due to the cold-water anemone needing membrane fluidity and a readily available source of energy that is quick to mobilise
Actinostola_callosa
Class of oily organic compounds found in plants
plant elongation, light harvesting and photoprotection, and membrane permeability and fluidity control. Terpenes are classified by the number of carbons:
Terpene
Species of bacterium
PMID 12057685. Chattopadhyay, M; Jagannadham, M (2001). "Maintenance of membrane fluidity in antarctic bacteria". Polar Biology. 24 (5): 386–388. doi:10.1007/s003000100232
Deinococcus_frigens
Chemical compound
cyclization with increasing growth temperatures to further improve membrane fluidity. Typically, biphytane measurement is performed as an indirect analysis
Biphytane
Index of articles on biophysics
Mechanotaxis Membrane biology Membrane channel Membrane contact site Membrane curvature Membrane fluidity Membrane lipids Membrane nanotube Membrane potential
Index_of_biophysics_articles
Class of peptides that have antimicrobial activity
polysaccharide of Klebsiella pneumoniae. Salmonella species reduce the fluidity of their outer membrane by increasing hydrophobic interactions between an increased
Antimicrobial_peptides
Species of bacterium
exhibits characteristic membrane adaptations, with fatty acids including C18:1 7c and C16:0, which help maintain membrane fluidity and function under fluctuating
Belnapia_moabensis
Chemical compound
the reduction of membrane viscosity and the increase of its fluidity, increases lipid-protein ratio. Modulates the activity of membrane-bound enzymes: phosphodiesterase
Emoxypine
Abnormal red blood cell with a spiked cell membrane
2009 Cooper RA, Durocher JR, Leslie MH (July 1977). "Decreased fluidity of red cell membrane lipids in abetalipoproteinemia". J. Clin. Invest. 60 (1): 115–21
Acanthocyte
Medical term for reduced sperm motility
(docosahexaenoic acid) is an acid formed by six double bonds which allows the fluidity of the membrane, necessary for the fusion with the ovule. Studies in mice have
Asthenozoospermia
Chemical compound
the study of membrane biophysics. For example, it was used to help establish the existence of a "fluidity gradient" across the membrane bilayer of some
Α-Parinaric_acid
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
Boy/Male
Tamil
Embrace
Male
Hebrew
Variant spelling of Hebrew Chabaqquwq, HABACUC means "embrace."
Boy/Male
Assamese, Gujarati, Hindu, Indian, Kannada, Marathi, Telugu
Embrace
Boy/Male
Indian, Sanskrit
Embrace; A Constellation of Stars
Boy/Male
Tamil
Embrace
Boy/Male
Hindu, Indian, Marathi
To Embrace
Boy/Male
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Origin; Embrace
Boy/Male
Muslim
Of reddish hair, Complexion, Name of the first roman to embrace Islam (1)
Boy/Male
Arabic, Hindu, Indian, Muslim
Of Reddish Hair or Complexion; Name of the First Roman to Embrace Islam
Boy/Male
Finnish, French, Greek, Indian, Sanskrit
Victory of the People; People's Victory; Come with Wealth; Hog; Embrace; A Weapon
Boy/Male
Indian
Embrace
Boy/Male
French, German, Hindu, Indian, Sanskrit
Ascending; Climbing Up; Embrace
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Punjabi, Sanskrit, Sikh, Tamil, Telugu
Star; A Constellation of Stars; Embrace
Male
English
Anglicized form of Hebrew Chabaqquwq, HABAKKUK means "embrace." In the bible, this is the name of a prophet.Â
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
An Embrace
Boy/Male
Tamil
Embrace
Boy/Male
Tamil
To embrace
Boy/Male
Hindu
To embrace
Girl/Female
Tamil
Ankolika | அஂகோலிகா
An embrace
Ankolika | அஂகோலிகா
Boy/Male
Hindu
Embrace
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
Girl/Female
Hindu
Beautiful woman, Goddess Parvati
Boy/Male
American, Australian, British, Celtic, Christian, Danish, Dutch, English, French, Gaelic, German, Irish, Jamaican, Scottish, Swedish, Swiss
World Ruler; Ruler of the World; Brown Stranger; World Mighty; Great Chief; Great; Chief
Male
Finnish
Finnish form of Scandinavian Axel, AKSELI means "father of peace."Â
Boy/Male
Tamil
Highest Dharma
Boy/Male
Indian
Noble
Girl/Female
Muslim/Islamic
Daughter of Musafh; she was a narrator of hadith
Female
Egyptian
, a goddess worshipped at Ten.
Surname or Lastname
English
English : variant spelling of Wadley.
Boy/Male
Indian, Sanskrit
Lord of Perfection
Boy/Male
Bengali, Indian
Creature; Heart of People
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
MEMBRANE FLUIDITY
a.
Situated under the peritoneal membrane.
a.
Situated under the hyaliod membrane.
n.
Inflammation of the synovial membrane.
a.
Situated under the arachnoid membrane.
v. i.
To join in an embrace.
a.
Having or producing membranes.
a.
Secreting mucus or phlegm; as, the pituitary membrane, or the mucous membrane which lines the nasal cavities.
n.
Any free, outer membrane.
n. pl.
The three membranes that envelop the brain and spinal cord; the pia mater, dura mater, and arachnoid membrane.
n.
The arachnoid membrane.
n.
Inflammation of the arachnoid membrane.
n.
The hymen, or virginal membrane.
a.
Situated under a mucous membrane.
n.
The third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.
a.
Pertaining to the arachnoid membrane; arachnoid.
n.
A fold of muscous membrane often found at the orifice of the vagina; the vaginal membrane.
a.
Situated under a serous membrane.
a.
Situated under the pleural membrane.
n.
A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ, and often secreting or absorbing certain fluids.