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KP4 (other)
KP4, Kp4 or kp4 may refer to * Killer toxin Kp4 family, a family of killer toxins, which includes the Kp4 killer toxin from the smut fungus ''Ustilago maydis'' * KP4, an amateur radio call sign assigned to operators in Puerto Rico, see Amateur radio licensing in the United States#Call signs * ''Witness In law, a witness is someone who has knowledge about a matter, whether they have sensed it or are testifying on another witnesses' behalf. In law a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, e ...'' (#KP4), Katy Perry's fifth studio album See also * KP (other) {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Killer Toxin Kp4 Family
In molecular biology, the killer toxin Kp4 family is a family of killer toxins, which includes the Kp4 killer toxin from the smut fungus '' Ustilago maydis''. Killer toxins are polypeptides secreted by some fungal species (" killer yeasts") that kill sensitive cells of the same or related species, often functioning by creating pores in target cell membranes. The fungal killer toxin KP4 from the corn smut fungus, ''Ustilago maydis'' (Smut fungus), is encoded by a resident symbiotic double-stranded RNA virus, Ustilago maydis P4 virus (UmV4), within fungal cells. Unlike most killer toxins, KP4 is a single polypeptide. KP4 inhibits voltage-gated calcium channels in mammalian cells, which in turn inhibits cell growth and division by blocking calcium import. KP4 adopts a structure consisting of a two-layer alpha Alpha (uppercase , lowercase ; grc, ἄλφα, ''álpha'', or ell, άλφα, álfa) is the first letter of the Greek alphabet. In the system of Greek numerals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio Licensing In The United States
In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations. Applicants as young as five years old have passed examinations and were granted licenses. Operator licenses are divided into different classes, each of which corresponds to an increasing degree of knowledge and corresponding privileges. Over the years, the details of the classes have changed significantly, leading to the current system of three open classes and three grandfathered (but closed to new applicants) classes. Current license classes Amateur radio licenses in the United States are issued and renewed by the Federal Communications Commission. In 2022 the FCC began charging a Congressionally-mandated $35 administrative fee. Private indiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witness (Katy Perry Album)
''Witness'' is the fifth studio album by American singer Katy Perry. It was released on June 9, 2017, by Capitol Records. For the album, Perry worked with numerous producers, including Jeff Bhasker, Mark Crew, Duke Dumont, Jack Garratt, Oscar Holter, Illangelo, Ilya, Max Martin, Ali Payami and Shellback. ''Witness'' is an electropop album that delves into dance and EDM genres, with lyrics on self empowerment and feminism. Perry described it as an album of "liberation" and "purposeful pop". Five singles aided ''Witness'', out of which, three were released before the album and one reached the top-ten of the ''Billboard'' Hot 100 chart: the lead single, "Chained to the Rhythm" featuring Skip Marley, peaked at number four on the Hot 100. "Bon Appétit" featuring Migos peaked at number 59, while "Swish Swish" featuring Nicki Minaj reached number 46. "Save as Draft" and "Hey Hey Hey" were released as subsequent singles on June 26, 2017 and January 12, 2018, respectively, with "Hey He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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