The hydrophobic region around Ser152 is essential for the catalytic activity of gastric lipase .
Ser152 has the hexapeptide sequence Val - Gly - His - Ser - Gln - Gly .
The hydrophobic region around Ser152 , which has the hexapeptide sequence Val - Gly - His - Ser - Gln - Gly , is essential for the catalytic activity of gastric lipase .