Source:http://linkedlifedata.com/resource/umls/id/C1153198
CSP: cotransport of two solutes across a biological membrane in opposite directions, mediated by specific membrane pump proteins which may be ATP- or gradient-driven.,GO: Enables the active transport of a solute across a membrane by a mechanism whereby two or more species are transported in opposite directions in a tightly coupled process not directly linked to a form of energy other than chemiosmotic energy. [GOC:mtg_transport, ISBN:0815340729, PMID:10839820],GO: OBSOLETE. The process of coupled solute translocation in which two solutes equilibrate across an osmotic barrier, the translocation of solute being coupled to the translocation of the other in the opposite direction. [ISBN:0198506732]