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Updated: Aug 10, 2026

A Tactile Automated Passive-Finger Stimulator (TAPS)
Published on: June 3, 2009
TAP and TAP-like--brothers in arms?
Chenguang Zhao1, Robert Tampé, Rupert Abele
1Institute of Biochemistry, Biocenter, Goethe-University Frankfurt, Marie-Curie-Str. 9, 60439, Frankfurt am Main, Germany.
Abstract:
The transporter associated with antigen processing like (TAPL, ABCB9) is a member of the ATP-binding cassette (ABC) transporter family. Moreover, TAPL belongs to the TAP family due to its high sequence homology to TAP1 and TAP2. TAPL forms a homodimer which is localized in lysosomes with a minor fraction in the ER. It functions as an ATP-dependent peptide transporter which shows a broad peptide specificity ranging from 6-mer up to 59-mer peptides. In contrast to TAP, TAPL transports peptides with low affinity but high efficiency. This review will briefly summarize current knowledge about the structural organization and possible physiological function of TAPL in antigen processing and presentation.
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