title: The human gastrointestinal tract through space and time- Fetal GEX
design: The human gastrointestinal tract through space and time- Fetal GEX
library_construction_protocol: Human fetal tissues were obtained from the MRC/Wellcome Trust-funded Human Developmental Biology Resource(HDBR, http://www.hdbr.org) with appropriate maternal written consent and approval from the Newcastle and North Tyneside NHS Health Authority Joint Ethics Committee (08/H0906/21+5). Adult human tissue was obtained from deceased transplant organ donors after ethical approval (reference 15/EE/0152, East of England Cambridge South Research Ethics Committee) and informed consent from the donor family. All tissues were processed immediately after isolation using consistent protocols with variation in enzymatic digestion strength (dx.doi.org/10.17504/protocols.io.q3xdypn). Cells were counted using NucleoCounter NC-200 and Via1-Cassette and diluted in 0.04% BSA in PBS to a concentration for capture of to attain 8,000-10,000 cells per well according the the 10x Genomics manufacturers protocol.  Cells were loaded into the 10x Chromium Controller according to the manufacturer's protocol at a concentration that would attain between 8,000-10,000 cells/chip position. cDNA library preparation was were carried out according to the manufacturerâ€™s protocol.