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It identifies the transporter and its kinetics; it does not establish the direction of net flux across an intact barrier.\nexposure: Tritiated GABA uptake by a conditionally immortalised mouse brain capillary endothelial cell line used as an in vitro barrier model\nevidence_span: {\"source_cache\": \"artifacts/gaba-research/11598501.abstract.txt\", \"locator\": \"Indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"97e62b677991c2535e9cd91c1283edc6415a64f66def965c17e478f7b676f708\", \"start_char\": 0, \"end_char\": 1589, \"text_sha256\": \"97e62b677991c2535e9cd91c1283edc6415a64f66def965c17e478f7b676f708\"}\n[gb-p11598501] GAT2/BGT-1 as a system responsible for the transport of gamma-aminobutyric acid at the mouse blood-brain barrier. 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