β肽基氨肽酶（EC 3.4.11.25, BapA）是一種酶。[1][2][3][4]該酶催化以下化學反應：
- 從由2到6個氨基酸組成的肽中切割N端β-高氨基酸
解異源肽鞘氨醇胞菌（Sphingosinicella xenopeptidilytica）菌株3-2W4可以使用 β-肽β-高纈氨酸-β-高丙氨酸-β-高亮氨酸和β-高丙氨酸-β-高亮氨酸作為碳和能量的唯一來源。
- ^ Heck T, Limbach M, Geueke B, Zacharias M, Gardiner J, Kohler HP, Seebach D. Enzymatic degradation of beta- and mixed alpha,beta-oligopeptides. Chemistry & Biodiversity. December 2006, 3 (12): 1325–48. PMID 17193247. S2CID 38292191. doi:10.1002/cbdv.200690136.
- ^ Geueke B, Namoto K, Seebach D, Kohler HP. A novel beta-peptidyl aminopeptidase (BapA) from strain 3-2W4 cleaves peptide bonds of synthetic beta-tri- and beta-dipeptides. Journal of Bacteriology. September 2005, 187 (17): 5910–7. PMC 1196161
. PMID 16109932. doi:10.1128/jb.187.17.5910-5917.2005.
- ^ Geueke B, Heck T, Limbach M, Nesatyy V, Seebach D, Kohler HP. Bacterial beta-peptidyl aminopeptidases with unique substrate specificities for beta-oligopeptides and mixed beta,alpha-oligopeptides. The FEBS Journal. December 2006, 273 (23): 5261–72. PMID 17064315. S2CID 84167461. doi:10.1111/j.1742-4658.2006.05519.x.
- ^ Heck T, Kohler HP, Limbach M, Flögel O, Seebach D, Geueke B. Enzyme-catalyzed formation of beta-peptides: beta-peptidyl aminopeptidases BapA and DmpA acting as beta-peptide-synthesizing enzymes. Chemistry & Biodiversity. September 2007, 4 (9): 2016–30. PMID 17886858. S2CID 85123861. doi:10.1002/cbdv.200790168.
