Labels:screenshot | text | black | black and white | monochrome OCR: DOXY CCK has an identical five amino-acid ca y is terminal sequence to gastrin. Its specifici ds, which conferred by the adjacent three amino ac osition 7. include a sulphated tyrosine residue at p Ly CCK is found in the gut in predominant ino-acid thirty-three, thirty-nine, or fifty-eight an in which itmolecular forms, in contrast to the brair ht is found at high concentrations in an eig ells of the amino-acid form. It is produced by the I en onto theduodenal and jejunal mucosa, which op in specific lumen. A small amount of CCK is found stinal tract, enteric neurones of the upper gastrointe
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