Results 341 to 350 of about 243,847 (379)
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Actin and actin‐binding proteins in yeast
Cell Motility, 1990Recently it has been shown that the amoeboid form of Dictyosteliurn discoideurn can chemotax in the absence of either myosin, a-actinin or severin without immediately obvious defects [reviewed by Bray and Vasiliev, 19891. These observations lead one to wonder what contractile proteins do in nonmuscle cells.
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Current Opinion in Cell Biology, 1993
The actin supergene family encodes a number of structurally related, but perhaps functionally distinct, protein isoforms that regulate contractile potential in muscle tissues and help to control the shape as well as the motility of non-muscle cells.
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The actin supergene family encodes a number of structurally related, but perhaps functionally distinct, protein isoforms that regulate contractile potential in muscle tissues and help to control the shape as well as the motility of non-muscle cells.
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Biopolymers, 1991
AbstractThe total strain birefringence of F‐actin isolated from chicken gizzards was measured as a function of elongation in thin transparent films. Each film held at a certain elongation in a jig was allowed to swell in a penetrating but nondissolving liquid. Seven liquids with different refractive indices were employed.
S K, Kakar, F A, Bettelheim
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AbstractThe total strain birefringence of F‐actin isolated from chicken gizzards was measured as a function of elongation in thin transparent films. Each film held at a certain elongation in a jig was allowed to swell in a penetrating but nondissolving liquid. Seven liquids with different refractive indices were employed.
S K, Kakar, F A, Bettelheim
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Dermatologic Clinics, 2014
Actinic prurigo is a chronic photodermatosis with onset in childhood or before 20 years of age. It is most prevalent in Amerindians and Latin American mestizos, although it has been reported worldwide. Patients present with photodistributed, erythematous excoriated papules, cheilitis, and conjunctivitis. There is strong association with human leukocyte
Martha C, Valbuena +2 more
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Actinic prurigo is a chronic photodermatosis with onset in childhood or before 20 years of age. It is most prevalent in Amerindians and Latin American mestizos, although it has been reported worldwide. Patients present with photodistributed, erythematous excoriated papules, cheilitis, and conjunctivitis. There is strong association with human leukocyte
Martha C, Valbuena +2 more
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Isolation of Actin and Actin-Binding Proteins
2016Actin-binding proteins mediate and regulate the dynamics of actin and the organization of highly ordered structures of F-actin. Villin is generally expressed in plant cells and is associated with G-actin or F-actin dependent on Ca2+ concentrations. Using a DNase I affinity column chromatography approach, the villin and the G-actin can be isolated from ...
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Annual Review of Medicine, 1990
Sun exposure has multiple well-documented acute and chronic effects of substantial medical importance. The most extensively studied of these are the effects on the skin. Acute effects include sunburn, phototoxic and photoallergic reactions, altered immunoreactivity, and a variety of photosensitivity disorders.
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Sun exposure has multiple well-documented acute and chronic effects of substantial medical importance. The most extensively studied of these are the effects on the skin. Acute effects include sunburn, phototoxic and photoallergic reactions, altered immunoreactivity, and a variety of photosensitivity disorders.
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Journal of the American Academy of Dermatology, 1981
Actinic prurigo is a chronic photodermatitis found predominantly in North American Indians. Other terms have been used to describe similar cases in Central and South America and in Europe. Relatively little has been written about this condition in the English literature, and confusion exists over whether this is a form of polymorphic light eruption ...
S R, Scheen, S M, Connolly, C H, Dicken
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Actinic prurigo is a chronic photodermatitis found predominantly in North American Indians. Other terms have been used to describe similar cases in Central and South America and in Europe. Relatively little has been written about this condition in the English literature, and confusion exists over whether this is a form of polymorphic light eruption ...
S R, Scheen, S M, Connolly, C H, Dicken
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International Journal of Dermatology, 1980
ABSTRACT: We report four cases of actinic reticuloid, including the first case ever reported in a woman. We have concluded that not all the patients are persistent light reactors and that the histologic presentation can be quite variable, in some cases extremely difficult to differentiate from a cutaneous lymphoma. Phototesting studies incriminate the
A, Guardiola, J L, Sánchez
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ABSTRACT: We report four cases of actinic reticuloid, including the first case ever reported in a woman. We have concluded that not all the patients are persistent light reactors and that the histologic presentation can be quite variable, in some cases extremely difficult to differentiate from a cutaneous lymphoma. Phototesting studies incriminate the
A, Guardiola, J L, Sánchez
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Clinical and Experimental Dermatology, 2005
We report a case of actinic folliculitis in a 29-year-old woman who presented with a 10-year history of a recurrent pustular eruption affecting her face, typically appearing 4-6 h after exposure to sunlight. Actinic follicuitis is a rare photodermatosis, which falls into the same spectrum as acne aestivalis and actinic superficial folliculitis.
E C, Veysey, S, George
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We report a case of actinic folliculitis in a 29-year-old woman who presented with a 10-year history of a recurrent pustular eruption affecting her face, typically appearing 4-6 h after exposure to sunlight. Actinic follicuitis is a rare photodermatosis, which falls into the same spectrum as acne aestivalis and actinic superficial folliculitis.
E C, Veysey, S, George
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1991
Almost 50 years ago actin was identified [Straub, 1942] in an extract of muscle tissue where — together with myosin — it forms the contractile protein-complex, actomyosin. Straub recognized that actin appears in two forms: In the absence of salt it can exist as a globular protein, G-actin, whereas on addition of traces of salt it changes into a highly ...
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Almost 50 years ago actin was identified [Straub, 1942] in an extract of muscle tissue where — together with myosin — it forms the contractile protein-complex, actomyosin. Straub recognized that actin appears in two forms: In the absence of salt it can exist as a globular protein, G-actin, whereas on addition of traces of salt it changes into a highly ...
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