1970
DOI: 10.1042/bj1170981
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Studies of the bulbo-urethral (Cowper's)-gland mucin and seminal gel of the boar

Abstract: 1. Moving-boundary electrophoresis of the mucin from the Cowper's gland of the boar revealed a sharp single peak at pH values from 1.1 to 9.0 and an isoelectric point of 1.1. 2. Neuraminidase treatment of the mucin, which removed at least 96% of the sialic acid groups, decreased the electrophoretic mobility at pH4 from -7.4x10(-5) (for the mucin) to -0.64x10(-5)cm(2)V(-1)s(-1). 3. Ultracentrifugal sedimentation values of s(20,w) showed a marked dependence on concentration. A hyperfine peak, similar to that giv… Show more

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Cited by 51 publications
(40 citation statements)
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“…They may be involved in sperm-oviduct attachment which increases sperm viability, suppresses sperm motility and modulates the process of capacitation until egg is ovulated into the ampulla (Smith, 1998;Töpfer-Petersen). They may be also involved in semen coagulation and the formation of copulatory plug in the vagina and lubrication before ejaculation (Boursnell et al, 1970;Hart, 1968) and may be necessary for stabilization of the spermatozoon plasma membrane or may serve as a source of energy for spermatozoa and have protective functions for urethral epithelium (Chughtai et al, 2005).…”
Section: Resultsmentioning
confidence: 99%
“…They may be involved in sperm-oviduct attachment which increases sperm viability, suppresses sperm motility and modulates the process of capacitation until egg is ovulated into the ampulla (Smith, 1998;Töpfer-Petersen). They may be also involved in semen coagulation and the formation of copulatory plug in the vagina and lubrication before ejaculation (Boursnell et al, 1970;Hart, 1968) and may be necessary for stabilization of the spermatozoon plasma membrane or may serve as a source of energy for spermatozoa and have protective functions for urethral epithelium (Chughtai et al, 2005).…”
Section: Resultsmentioning
confidence: 99%
“…3) rendering an impact of these proteins on seminal plasma viscosity possible next to the dominant P250. To verify a potential involvement of these proteins for instance in the form of an interaction of several seminal plasma components as described in the boar [56] and the rat [57], further investigations on the fine structure of rhinoceros seminal plasma are required.…”
Section: Discussionmentioning
confidence: 99%
“…Involvement with the Proteins A and H in this fluid and in seminal plasma was shown by Boursnell, Hartree & Briggs (1970). If the gel is not separated, it swells by imbibition of fluid, ultimately occupying much of the volume of the total ejaculate.…”
Section: Introductionmentioning
confidence: 99%