Abstract REYES G, Edwin; REYES M, Edgar and LAREO, Leonardo. Uso de una conantokina y anticuerpos policlonales para identificar la subunidad NR2B del receptor n-metil-d-aspartato. Rev. MVZ Cordoba [online]. 2010, vol. 15, n. 3, pp. 2147-2157. ISSN 0122-0268. Objective. To propose a methodology that identifies the NR2B subunit through the use of conantokin G, as well as an adequate extraction of the NR2B subunit. Materials and methods. Two methodologies were tested for the extraction of the NR2B subunit of the adult