GCA may refer to:
In science and technology:
Other uses:
Grancalcin is a protein that in humans is encoded by the GCA gene.
This gene product, grancalcin, is a calcium-binding protein abundant in neutrophils and macrophages. It belongs to the penta-EF-hand subfamily of proteins which includes sorcin, calpain, and ALG-2. Grancalcin localization is dependent upon calcium and magnesium. In the absence of divalent cation, grancalcin localizes to the cytosolic fraction; with magnesium alone, it partitions with the granule fraction; and in the presence of magnesium and calcium, it associates with both the granule and membrane fractions, suggesting a role for grancalcin in granule-membrane fusion and degranulation.
GCA (gene) has been shown to interact with SRI.
The Gun Control Act of 1968 (GCA or GCA68) is a U.S. federal law that regulates the firearms industry and firearms owners. It primarily focuses on regulating interstate commerce in firearms by generally prohibiting interstate firearms transfers except among licensed manufacturers, dealers and importers.
The GCA was signed into law by President Lyndon B. Johnson on October 22, 1968, and is Title I of the U.S. federal firearms laws. The National Firearms Act of 1934 (NFA) is Title II. Both GCA and NFA are enforced by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).
Passage of the Gun Control Act was initially prompted by the assassination of U.S. President John F. Kennedy in 1963. The President was shot and killed with a rifle purchased by mail-order from an ad in National Rifle Association (NRA) magazine American Rifleman. Congressional hearings followed and a ban on mail-order gun sales was discussed, but no law was passed until 1968. At the hearings NRA Executive Vice-President Franklin Orth supported a ban on mail-order sales, stating, "We do not think that any sane American, who calls himself an American, can object to placing into this bill the instrument which killed the president of the United States."
Asi lo vivi by G4Eramos amigos nada mas
tu enamorado de alguien mas
y yo tan solo consejera de algo inusual
no esperaba imaginar tanto
no esperaba descubrir
Pero al final así lo viví
pero entendí mejor
Cada dia cada momento era especial
lo entendi mejor que los demas
no esperaba presentir pensé que
estaba mal sentir que al final
regresar de nuevo no quiero expresar
ah ah ah ah
Hubo momentos que quise llorar
y me aguante asi de mas
las lagrimas en tus mejillas
era de una niña
que le arranco ah la soledad
Pero al final así lo viví
pero entendí mejor
Cada dia cada momento era especial
lo entendi mejor que los demas
no esperaba presentir pensé que
estaba mal sentir que al final
regresar de nuevo no quiero expresar
pero al final asi lo vivi