Carboxyesterase polypeptides for kinetic resolution
The present invention provides engineered carboxyesterase enzymes having improved properties as compared to a naturally occurring wild-type carboxyesterase enzymes, as well as polynucleotides encoding the engineered carboxyesterase enzymes, host cells capable of expressing the engineered carboxyesterase enzymes, and methods of using the engineered carboxyesterase enzymes in hydrolysis reactions.
1 . An engineered carboxyesterase comprising a polypeptide sequence having at least 90%, sequence identity to SEQ ID NO: 2 or a functional fragment thereof, wherein said engineered carboxyesterase comprises the substitution set 9/10/70 in said polypeptide sequence, and wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 2, and wherein the engineered carboxyesterase comprises at least one improved property compared to the wild-type Xanthomonas campestris carboxyesterase of SEQ ID NO:2.
2 . The engineered carboxyesterase of claim 1 , wherein said engineered carboxyesterase further comprises one or more amino acid substitutions at positions selected from: X82, and X180.
3 . The engineered carboxyesterase of claim 1 , wherein said at least one substitution or substitution set in said polypeptide sequence further comprises substitutions at positions selected from: 3/4/6/11/36/38/82/180/200/214/229, 3/6/99, 3/8/11/13/82/107/229, 3/8/11/13/70/107, 3/8/11, 3/8/11/229, 3/8/13/82/107, 3/8/13/82/229, 3/8/82, 3/8/82/229, 3/8/229, 3/11/13/82, 3/11/782/107, 3/11/229, 3/82, 3/11, 3/9/11/82/180, 4/6/8/11/38/82/180/186/200/214/229, 4/6/11/36/82/180/200/214/229, 4/6/11/38/82/180/186/200/214, 4/6/82/229, 4/8/11/13/82/107/229, 4/8/11/36/38/82/180/200/214/229, 4/8/11/36/82/180/186/200/214/229, 4/8/11/82/180/200/214/229, 4/8/36/38/82/180/200/214/229, 4/11/36/38/82/180/200/214/229, 4/11/36/65/82/180/186/200/214, 4/11/36/82/180/200/214, 4/11/36/82/180/200/214/229, 4/11/82/180/200/214, 6/8/38/82/180/200/214, 6/11/36/82/180/200/214/229, 6/38/82/180/186/200/214/229, 6/82/180/186/200/214/229, 8, 8/11/13, 8/11/13/82, 8/11/13/82/107/229, 8/11/36/38/82/180/200/214, 8/11/38/82/180/200/214/229, 8/11/43/82/180/200/214, 8/11, 8/11/82/107/229, 8/11/229, 8/82/229, 11/12/49/51/73/82/180/200/225, 11/12/49/73/82/180, 11/12/51/54/73/82/108/148/180/225, 11/12/51/54/73/82/110/180, 11/12/51/54/73/82/148/180/225, 11/12/51/73/82/148/180, 11/12/51/73/82/148/180/200/225, 11/12/51/73/110/148/180, 11/17/49/82/180/200, 11/17/49/82/180/219, 11/17/51/54/82/148/180/200, 11/17/51/54/82/180, 11/17/73/82/87/180/219, 11/17/82/148/180/219, 11/35/82/180/200/214, 11/36/38/65/82/180/200/214/229, 11/36/38/82/180/200/214, 11/36/38/82/180/200/214/229, 11/36/82/180/196/214, 11/36/82/180/200/214, 11/36/82/180/200/214/229, 11/38/82/180/186/200/214, 11/40/78/82/180/200/214, 11/49/51/54/82/87/108/110/148/180/219, 11/49/51/54/82/87/108/180, 11/49/51/54/82/110/148/180, 11/49/51/82/108/10/148/180, 11/49/54/82/87/148/180, 11/49/82/87/108/110/180/200, 11/49/82/87/180, 11/49/82/110/148/180/225, 11/51/54/73/82/108/110/180, 11/51/54/73/82/108/180/200/225, 11/51/54/73/82/110/148/180, 11/51/54/82/148/180, 11/51/82/110/180/192/219, 11/54/82/87/108/180, 11/54/82/87/180/192, 11/54/82/148/180/200, 11/54/82/180/200/214, 11/70, 11/71/82/180/200/214, 9/10/11/73/82/87/110/180, 11/73/82/108/148/180, 11/73/82/148/180, 11/73/82/148/180/192/200, 11/73/82/180/200/214, 11/82, 11/82/87/110/180/219, 11/82/100/180/200/214, 11/82/107, 11/82/108/180/200/214, 11/82/148/180, 11/82/148/180/200/214, 11/82/180, 11/82/180/200/214, 11/87/180/200/214, 11/107, 12/49/51/54/82/108/148/180/225, 12/51/54/180/225, 12/51/73/82/148/180/200, 12/82/148/180/225, 12/82/180/200/214, 13, 13/82, 13/229, 13/207, 17, 17/49/51/54/73/82/108/110/148/180/192/200/219, 17/49/51/54/82/87/180/219, 17/49/82/148/180, 17/51/54/82/87/108/110/180/200, 17/51/73/82/87/108/110/148/180/219, 17/54/73/82/87/108/110/148/180/200, 17/54/73/82/108/110/148/180, 17/54/82/87/108/110/180, 17/73/82/87/180/219, 17/73/82/108/110/148/180/200, 17/82/87/148/180, 17/82/87/148/180/192/219, 17/82/108/148/180, 17/82/110/148/180, 17/82/110/148/180/200, 17/82/180/200/214, 17/104/160/165, 17/139/160/165, 26, 29, 36/82/180/200/214, 37, 38/82/180/200/214, 39, 39/186, 41, 45, 49/51/54/73/82/108/110/148/180/192, 49/51/54/73/82/148/180, 49/51/54/82/108/110/148/180/225, 49/51/54/70/82/110/148/180, 49/51/54/82/110/180, 49/51/54/82/148/180, 49/51/54/82/148/180/192, 49/51/82/108/148/180/219, 49/51/82/110/148/180, 49/51/82/180/225, 49/54/73/82/87/110/180, 49/54/82/87/110/180, 49/54/82/108/148/180/225, 49/73/82/87/108/148/180, 49/73/82/108/110/148/180/225, 49/82/87/148/180, 49/82/110/180/219, 51/54/73/82/108/180, 51/54/73/82/110/148/180, 51/54/73/82/110/180, 51/54/73/82/180/219, 51/54/73/82/180/225, 51/54/82/87/180, 51/54/82/148/180, 51/54/82/180, 51/54/82/180/200, 51/82/108/180, 51/82/110/180/200, 51/70/82/180/219, 54/73/82/108/148/180/192, 54/70/82/87/108/180/200, 54/70/82/180, 62, 73/82/87/108/110/180, 73/82/87/180/192/219, 73/82/87/180/200, 73/82/108/110/148/180, 73/82/108/110/180/200/219, 73/82/108/148/180, 73/82/108/148/180/192, 73/82/108/148/180/192/219, 73/82/108/180, 73/82/148/180, 73/82/148/180/200, 73/82/180/192, 73/82/180/192/219, 82, 82/87/108/110/148/180/192/219, 82/87/108/110/180, 82/87/108/110/180/192, 82/87/180, 82/107, 82/107/229, 82/108/110/180/219, 82/108/180, 82/110/148/180, 82/110/180/219, 82/148/180, 82/148/180/200, 82/148/180/200/219, 82/180, 82/180/192/219, 82/180/200/214, 82/229, 92, 99, 99/229, 107/229, 156, 165, 229, 8890, 96, 107, 110, 111, 112, 133, 178, 185, 186, 196, 211, 226, 11/24, 11/24/219, and 11/36/206/208, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 2.
4 . The engineered carboxyesterase of claim 1 , wherein the engineered carboxyesterase has at least 95% to SEQ ID NO: 2, and wherein said at least one substitution or substitution set in said polypeptide sequence comprises substitutions at positions selected from: 3/4/6/9/10/11/36/38/70/82/180/200/214/229, 3/6/9/10/70/99, 3/8/9/10/11/13/70/82/107/229, 3/8/9/10/11/13/70/107, 3/8/9/10/11/70, 3/8/9/10/11/70/229, 3/8/9/10/13/70/82/107, 3/8/9/10/13/70/82/229, 3/8/9/10/70/82, 3/8/9/10/70/82/229, 3/8/9/10/70/229, 3/9/10/11/13/82, 3/9/10/11/70/82/107, 3/9/10/11/70/229, 3/9/10/70/82, 3/9/11, 3/9/11/70/82/180, 4/6/8/9/10/11/38/70/82/180/186/200/214/229, 4/6/9/10/11/36/70/82/180/200/214/229, 4/6/9/10/11/38/70/82/180/186/200/214, 4/6/9/10/70/82/229, 4/8/9/10/11/13/70/82/107/229, 4/8/9/10/11/36/38/70/82/180/200/214/229, 4/8/9/10/11/36/70/82/180/186/200/214/229, 4/8/9/10/11/70/82/180/200/214/229, 4/8/9/10/36/38/70/82/180/200/214/229, 4/9/10/11/36/38/70/82/180/200/214/229, 4/9/10/11/36/65/70/82/180/186/200/214, 4/9/10/11/36/70/82/180/200/214, 4/9/10/11/36/70/82/180/200/214/229, 4/9/10/11/70/82/180/200/214, 6/8/9/10/38/70/82/180/200/214, 6/9/10/11/36/70/82/180/200/214/229, 6/9/10/38/70/82/180/186/200/214/229, 6/9/10/70/82/180/186/200/214/229, 8/9/10, 8/9/10/11/13/70, 8/9/10/11/13/70/82, 8/9/10/11/13/70/82/107/229, 8/9/10/11/36/38/70/82/180/200/214, 8/9/10/11/38/70/82/180/200/214/229, 8/9/10/11/43/70/82/180/200/214, 8/9/10/11/70, 8/9/10/11/70/82/107/229, 8/9/10/11/70/229, 8/9/10/70, 8/9/10/70/82/229, 9/10, 9/10/11/12/49/51/70/73/82/180/200/225, 9/10/11/12/49/70/73/82/180, 9/10/11/12/51/54/70/73/82/108/148/180/225, 9/10/11/12/51/54/70/73/82/110/180, 9/10/11/12/51/54/70/73/82/148/180/225, 9/10/11/12/51/70/73/82/148/180, 9/10/11/12/51/70/73/82/148/180/200/225, 9/10/11/12/51/70/73/110/148/180, 9/10/11/17/49/70/82/180/200, 9/10/11/17/49/70/82/180/219, 9/10/11/17/51/54/70/82/148/180/200, 9/10/11/17/51/54/70/82/180, 9/10/11/17/70/73/82/87/180/219, 9/10/11/17/70/82/148/180/219, 9/10/11/35/70/82/180/200/214, 9/10/11/36/38/65/70/82/180/200/214/229, 9/10/11/36/38/70/82/180/200/214, 9/10/11/36/38/70/82/180/200/214/229, 9/10/11/36/70/82/180/196/214, 9/10/11/36/70/82/180/200/214, 9/10/11/36/70/82/180/200/214/229, 9/10/11/38/70/82/180/186/200/214, 9/10/11/40/70/82/180/200/214, 9/10/11/49/51/54/70/82/87/108/110/148/180/219, 9/10/11/49/51/54/70/82/87/108/180, 9/10/11/49/51/54/70/82/110/148/180, 9/10/11/49/51/70/82/108/110/148/180, 9/10/11/49/54/70/82/87/148/180, 9/10/11/49/70/82/87/108/110/180/200, 9/10/11/49/70/82/87/180, 9/10/11/49/70/82/110/148/180/225, 9/10/11/51/54/70/73/82/108/110/180, 9/10/11/51/54/70/73/82/108/180/200/225, 9/10/11/51/54/70/73/82/110/148/180, 9/10/11/51/54/70/82/148/180, 9/10/11/51/70/82/110/180/192/219, 9/10/11/54/70/82/87/108/180, 9/10/11/54/70/82/87/180/192, 9/10/11/54/70/82/148/180/200, 9/10/11/54/70/82/180/200/214, 9/10/11/70, 9/10/11/70/71/82/180/200/214, 9/10/11/70/73/82/87/110/180, 9/10/11/70/73/82/108/148/180, 9/10/11/70/73/82/148/180, 9/10/11/70/73/82/148/180/192/200, 9/10/11/70/73/82/180/200/214, 9/10/11/70/82, 9/10/11/70/82/87/110/180/219, 9/10/11/70/82/100/180/200/214, 9/10/11/70/82/107, 9/10/11/70/82/108/180/200/214, 9/10/11/70/82/148/180, 9/10/11/70/82/148/180/200/214, 9/10/11/70/82/180, 9/10/11/70/82/180/200/214, 9/10/11/70/87/180/200/214, 9/10/11/70/107, 9/10/12/49/51/54/70/82/108/148/180/225, 9/10/12/51/54/70/180/225, 9/10/12/51/70/73/82/148/180/200, 9/10/12/70/82/148/180/225, 9/10/12/70/82/180/200/214, 9/10/13/70, 9/10/13/70/82, 9/10/13/70/229, 9/10/13/207, 9/10/17, 9/10/17/49/51/54/70/73/82/108/110/148/180/192/200/219, 9/10/17/49/51/54/70/82/87/180/219, 9/10/17/49/70/82/148/180, 9/10/17/51/54/70/82/87/108/110/180/200, 9/10/17/51/70/73/82/87/108/110/148/180/219, 9/10/17/54/70/73/82/87/108/110/148/180/200, 9/10/17/54/70/73/82/108/110/148/180, 9/10/17/54/70/82/87/108/110/180, 9/10/17/70/73/82/87/180/219, 9/10/17/70/73/82/108/110/148/180/200, 9/10/17/70/82/87/148/180, 9/10/17/70/82/87/148/180/192/219, 9/10/17/70/82/108/148/180, 9/10/17/70/82/110/148/180, 9/10/17/70/82/110/148/180/200, 9/10/17/70/82/180/200/214, 9/10/17/70/104/160/165, 9/10/17/70/139/160/165, 9/10/26, 9/10/29/70, 9/10/36/70/82/180/200/214, 9/10/37, 9/10/38/70/82/180/200/214, 9/10/39, 9/10/39/186, 9/10/41, 9/10/45/70, 9/10/49/51/54/70/73/82/108/110/148/180/192, 9/10/49/51/54/70/73/82/148/180, 9/10/49/51/54/70/82/108/110/148/180/225, 9/10/49/51/54/70/82/110/148/180, 9/10/49/51/54/70/82/110/180, 9/10/49/51/54/70/82/148/180, 9/10/49/51/54/70/82/148/180/192, 9/10/49/51/70/82/108/148/180/219, 9/10/49/51/70/82/110/148/180, 9/10/49/51/70/82/180/225, 9/10/49/54/70/73/82/87/110/180, 9/10/49/54/70/82/87/110/180, 9/10/49/54/70/82/108/148/180/225, 9/10/49/70/73/82/87/108/148/180, 9/10/49/70/73/82/108/110/148/180/225, 9/10/49/70/82/87/148/180, 9/10/49/70/82/110/180/219, 9/10/51/54/70/73/82/108/180, 9/10/51/54/70/73/82/110/148/180, 9/10/51/54/70/73/82/110/180, 9/10/51/54/70/73/82/180/219, 9/10/51/54/70/73/82/180/225, 9/10/51/54/70/82/87/180, 9/10/51/54/70/82/148/180, 9/10/51/54/70/82/180, 9/10/51/54/70/82/180/200, 9/10/51/70/82/108/180, 9/10/51/70/82/110/180/200, 9/10/51/70/82/180/219, 9/10/54/70/73/82/108/148/180/192, 9/10/54/70/82/87/108/180/200, 9/10/54/70/82/180, 9/10/62, 9/10/70, 9/10/70/73/82/87/108/110/180, 9/10/70/73/82/87/180/192/219, 9/10/70/73/82/87/180/200, 9/10/70/73/82/108/110/148/180, 9/10/70/73/82/108/110/180/200/219, 9/10/70/73/82/108/148/180, 9/10/70/73/82/108/148/180/192, 9/10/70/73/82/108/148/180/192/219, 9/10/70/73/82/108/180, 9/10/70/73/82/148/180, 9/10/70/73/82/148/180/200, 9/10/70/73/82/180/192, 9/10/70/73/82/180/192/219, 9/10/70/82, 9/10/70/82/87/108/110/148/180/192/219, 9/10/70/82/87/108/110/180, 9/10/70/82/87/108/110/180/192, 9/10/70/82/87/180, 9/10/70/82/107, 9/10/70/82/107/229, 9/10/70/82/108/110/180/219, 9/10/70/82/108/180, 9/10/70/82/110/148/180, 9/10/70/82/110/180/219, 9/10/70/82/148/180, 9/10/70/82/148/180/200, 9/10/70/82/148/180/200/219, 9/10/70/82/180, 9/10/70/82/180/192/219, 9/10/70/82/180/200/214, 9/10/70/82/229, 9/10/70/92, 9/10/70/99, 9/10/70/99/229, 9/10/70/107/229, 9/10/70/156, 9/10/70/165, 9/10/70/229, 9/10/88, 9/10/90, 9/10/96, 9/10/107, 9/10/110, 9/10/111, 9/10/112, 9/10/133, 9/10/178, 9/10/185, 9/10/186, 9/10/196, 9/10/211, 9/10/226, 11/24, 11/24/219, and 11/36/206/208, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 82.
5 . The engineered carboxyesterase of claim 1 , wherein said at least one substitution or substitution set in said polypeptide sequence comprises further substitutions at positions selected from: 3/4/6/9/10/11/36/38/70/82/180/200/214/229, 3/6/9/10/70/99, 3/8/9/10/11/13/70/82/107/229, 3/8/9/10/11/13/70/107, 3/8/9/10/11/70, 3/8/9/10/11/70/229, 3/8/9/10/13/70/82/107, 3/8/9/10/13/70/82/229, 3/8/9/10/70/82, 3/8/9/10/70/82/229, 3/8/9/10/70/229, 3/9/10/11/13/82, 3/9/10/11/70/82/107, 3/9/10/11/70/229, 3/9/10/70/82, 3/9/11, 3/9/11/70/82/180, 4/6/8/9/10/11/38/70/82/180/186/200/214/229, 4/6/9/10/11/36/70/82/180/200/214/229, 4/6/9/10/11/38/70/82/180/186/200/214, 4/6/9/10/70/82/229, 4/8/9/10/11/13/70/82/107/229, 4/8/9/10/11/36/38/70/82/180/200/214/229, 4/8/9/10/11/36/70/82/180/186/200/214/229, 4/8/9/10/11/70/82/180/200/214/229, 4/8/9/10/36/38/70/82/180/200/214/229, 4/9/10/11/36/38/70/82/180/200/214/229, 4/9/10/11/36/65/70/82/180/186/200/214, 4/9/10/11/36/70/82/180/200/214, 4/9/10/11/36/70/82/180/200/214/229, 4/9/10/11/70/82/180/200/214, 6/8/9/10/38/70/82/180/200/214, 6/9/10/11/36/70/82/180/200/214/229, 6/9/10/38/70/82/180/186/200/214/229, 6/9/10/70/82/180/186/200/214/229, 8/9/10, 8/9/10/11/13/70, 8/9/10/11/13/70/82, 8/9/10/11/13/70/82/107/229, 8/9/10/11/36/38/70/82/180/200/214, 8/9/10/11/38/70/82/180/200/214/229, 8/9/10/11/43/70/82/180/200/214, 8/9/10/11/70, 8/9/10/11/70/82/107/229, 8/9/10/11/70/229, 8/9/10/70, 8/9/10/70/82/229, 9/10, 9/10/11/12/49/51/70/73/82/180/200/225, 9/10/11/12/49/70/73/82/180, 9/10/11/12/51/54/70/73/82/108/148/180/225, 9/10/11/12/51/54/70/73/82/110/180, 9/10/11/12/51/54/70/73/82/148/180/225, 9/10/11/12/51/70/73/82/148/180, 9/10/11/12/51/70/73/82/148/180/200/225, 9/10/11/12/51/70/73/110/148/180, 9/10/11/17/49/70/82/180/200, 9/10/11/17/49/70/82/180/219, 9/10/11/17/51/54/70/82/148/180/200, 9/10/11/17/51/54/70/82/180, 9/10/11/17/70/73/82/87/180/219, 9/10/11/17/70/82/148/180/219, 9/10/11/35/70/82/180/200/214, 9/10/11/36/38/65/70/82/180/200/214/229, 9/10/11/36/38/70/82/180/200/214, 9/10/11/36/38/70/82/180/200/214/229, 9/10/11/36/70/82/180/196/214, 9/10/11/36/70/82/180/200/214, 9/10/11/36/70/82/180/200/214/229, 9/10/11/38/70/82/180/186/200/214, 9/10/11/40/70/82/180/200/214, 9/10/11/49/51/54/70/82/87/108/110/148/180/219, 9/10/11/49/51/54/70/82/87/108/180, 9/10/11/49/51/54/70/82/110/148/180, 9/10/11/49/51/70/82/108/110/148/180, 9/10/11/49/54/70/82/87/148/180, 9/10/11/49/70/82/87/108/110/180/200, 9/10/11/49/70/82/87/180, 9/10/11/49/70/82/110/148/180/225, 9/10/11/51/54/70/73/82/108/110/180, 9/10/11/51/54/70/73/82/108/180/200/225, 9/10/11/51/54/70/73/82/110/148/180, 9/10/11/51/54/70/82/148/180, 9/10/11/51/70/82/110/180/192/219, 9/10/11/54/70/82/87/108/180, 9/10/11/54/70/82/87/180/192, 9/10/11/54/70/82/148/180/200, 9/10/11/54/70/82/180/200/214, 9/10/11/70, 9/10/11/70/71/82/180/200/214, 9/10/11/70/73/82/87/110/180, 9/10/11/70/73/82/108/148/180, 9/10/11/70/73/82/148/180, 9/10/11/70/73/82/148/180/192/200, 9/10/11/70/73/82/180/200/214, 9/10/11/70/82, 9/10/11/70/82/87/110/180/219, 9/10/11/70/82/100/180/200/214, 9/10/11/70/82/107, 9/10/11/70/82/108/180/200/214, 9/10/11/70/82/148/180, 9/10/11/70/82/148/180/200/214, 9/10/11/70/82/180, 9/10/11/70/82/180/200/214, 9/10/11/70/87/180/200/214, 9/10/11/70/107, 9/10/12/49/51/54/70/82/108/148/180/225, 9/10/12/51/54/70/180/225, 9/10/12/51/70/73/82/148/180/200, 9/10/12/70/82/148/180/225, 9/10/12/70/82/180/200/214, 9/10/13/70, 9/10/13/70/82, 9/10/13/70/229, 9/10/13/207, 9/10/17, 9/10/17/49/51/54/70/73/82/108/110/148/180/192/200/219, 9/10/17/49/51/54/70/82/87/180/219, 9/10/17/49/70/82/148/180, 9/10/17/51/54/70/82/87/108/110/180/200, 9/10/17/51/70/73/82/87/108/110/148/180/219, 9/10/17/54/70/73/82/87/108/110/148/180/200, 9/10/17/54/70/73/82/108/110/148/180, 9/10/17/54/70/82/87/108/110/180, 9/10/17/70/73/82/87/180/219, 9/10/17/70/73/82/108/110/148/180/200, 9/10/17/70/82/87/148/180, 9/10/17/70/82/87/148/180/192/219, 9/10/17/70/82/108/148/180, 9/10/17/70/82/110/148/180, 9/10/17/70/82/110/148/180/200, 9/10/17/70/82/180/200/214, 9/10/17/70/104/160/165, 9/10/17/70/139/160/165, 9/10/26, 9/10/29/70, 9/10/36/70/82/180/200/214, 9/10/37, 9/10/38/70/82/180/200/214, 9/10/39, 9/10/39/186, 9/10/41, 9/10/45/70, 9/10/49/51/54/70/73/82/108/110/148/180/192, 9/10/49/51/54/70/73/82/148/180, 9/10/49/51/54/70/82/108/110/148/180/225, 9/10/49/51/54/70/82/110/148/180, 9/10/49/51/54/70/82/110/180, 9/10/49/51/54/70/82/148/180, 9/10/49/51/54/70/82/148/180/192, 9/10/49/51/70/82/108/148/180/219, 9/10/49/51/70/82/110/148/180, 9/10/49/51/70/82/180/225, 9/10/49/54/70/73/82/87/110/180, 9/10/49/54/70/82/87/110/180, 9/10/49/54/70/82/108/148/180/225, 9/10/49/70/73/82/87/108/148/180, 9/10/49/70/73/82/108/110/148/180/225, 9/10/49/70/82/87/148/180, 9/10/49/70/82/110/180/219, 9/10/51/54/70/73/82/108/180, 9/10/51/54/70/73/82/110/148/180, 9/10/51/54/70/73/82/110/180, 9/10/51/54/70/73/82/180/219, 9/10/51/54/70/73/82/180/225, 9/10/51/54/70/82/87/180, 9/10/51/54/70/82/148/180, 9/10/51/54/70/82/180, 9/10/51/54/70/82/180/200, 9/10/51/70/82/108/180, 9/10/51/70/82/110/180/200, 9/10/51/70/82/180/219, 9/10/54/70/73/82/108/148/180/192, 9/10/54/70/82/87/108/180/200, 9/10/54/70/82/180, 9/10/62, 9/10/70, 9/10/70/73/82/87/108/110/180, 9/10/70/73/82/87/180/192/219, 9/10/70/73/82/87/180/200, 9/10/70/73/82/108/110/148/180, 9/10/70/73/82/108/110/180/200/219, 9/10/70/73/82/108/148/180, 9/10/70/73/82/108/148/180/192, 9/10/70/73/82/108/148/180/192/219, 9/10/70/73/82/108/180, 9/10/70/73/82/148/180, 9/10/70/73/82/148/180/200, 9/10/70/73/82/180/192, 9/10/70/73/82/180/192/219, 9/10/70/82, 9/10/70/82/87/108/110/148/180/192/219, 9/10/70/82/87/108/110/180, 9/10/70/82/87/108/110/180/192, 9/10/70/82/87/180, 9/10/70/82/107, 9/10/70/82/107/229, 9/10/70/82/108/110/180/219, 9/10/70/82/108/180, 9/10/70/82/110/148/180, 9/10/70/82/110/180/219, 9/10/70/82/148/180, 9/10/70/82/148/180/200, 9/10/70/82/148/180/200/219, 9/10/70/82/180, 9/10/70/82/180/192/219, 9/10/70/82/180/200/214, 9/10/70/82/229, 9/10/70/92, 9/10/70/99, 9/10/70/99/229, 9/10/70/107/229, 9/10/70/156, 9/10/70/165, 9/10/70/229, 9/10/88, 9/10/90, 9/10/96, 9/10/107, 9/10/110, 9/10/111, 9/10/112, 9/10/133, 9/10/178, 9/10/185, 9/10/186, 9/10/196, 9/10/211, 9/10/226, 11/24, 11/24/219, and 11/36/206/208, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 268.
6 . The engineered carboxyesterase of claim 1 , wherein said at least one substitution or substitution set in said polypeptide sequence further comprises substitutions at positions selected from: 3/4/6/9/10/11/36/38/70/82/180/200/214/229, 3/6/9/10/70/99, 3/8/9/10/11/13/70/82/107/229, 3/8/9/10/11/13/70/107, 3/8/9/10/11/70, 3/8/9/10/11/70/229, 3/8/9/10/13/70/82/107, 3/8/9/10/13/70/82/229, 3/8/9/10/70/82, 3/8/9/10/70/82/229, 3/8/9/10/70/229, 3/9/10/11/13/82, 3/9/10/11/70/82/107, 3/9/10/11/70/229, 3/9/10/70/82, 3/9/11, 3/9/11/70/82/180, 4/6/8/9/10/11/38/70/82/180/186/200/214/229, 4/6/9/10/11/36/70/82/180/200/214/229, 4/6/9/10/11/38/70/82/180/186/200/214, 4/6/9/10/70/82/229, 4/8/9/10/11/13/70/82/107/229, 4/8/9/10/11/36/38/70/82/180/200/214/229, 4/8/9/10/11/36/70/82/180/186/200/214/229, 4/8/9/10/11/70/82/180/200/214/229, 4/8/9/10/36/38/70/82/180/200/214/229, 4/9/10/11/36/38/70/82/180/200/214/229, 4/9/10/11/36/65/70/82/180/186/200/214, 4/9/10/11/36/70/82/180/200/214, 4/9/10/11/36/70/82/180/200/214/229, 4/9/10/11/70/82/180/200/214, 6/8/9/10/38/70/82/180/200/214, 6/9/10/11/36/70/82/180/200/214/229, 6/9/10/38/70/82/180/186/200/214/229, 6/9/10/70/82/180/186/200/214/229, 8/9/10, 8/9/10/11/13/70, 8/9/10/11/13/70/82, 8/9/10/11/13/70/82/107/229, 8/9/10/11/36/38/70/82/180/200/214, 8/9/10/11/38/70/82/180/200/214/229, 8/9/10/11/43/70/82/180/200/214, 8/9/10/11/70, 8/9/10/11/70/82/107/229, 8/9/10/11/70/229, 8/9/10/70, 8/9/10/70/82/229, 9/10, 9/10/11/12/49/51/70/73/82/180/200/225, 9/10/11/12/49/70/73/82/180, 9/10/11/12/51/54/70/73/82/108/148/180/225, 9/10/11/12/51/54/70/73/82/110/180, 9/10/11/12/51/54/70/73/82/148/180/225, 9/10/11/12/51/70/73/82/148/180, 9/10/11/12/51/70/73/82/148/180/200/225, 9/10/11/12/51/70/73/110/148/180, 9/10/11/17/49/70/82/180/200, 9/10/11/17/49/70/82/180/219, 9/10/11/17/51/54/70/82/148/180/200, 9/10/11/17/51/54/70/82/180, 9/10/11/17/70/73/82/87/180/219, 9/10/11/17/70/82/148/180/219, 9/10/11/35/70/82/180/200/214, 9/10/11/36/38/65/70/82/180/200/214/229, 9/10/11/36/38/70/82/180/200/214, 9/10/11/36/38/70/82/180/200/214/229, 9/10/11/36/70/82/180/196/214, 9/10/11/36/70/82/180/200/214, 9/10/11/36/70/82/180/200/214/229, 9/10/11/38/70/82/180/186/200/214, 9/10/11/40/70/82/180/200/214, 9/10/11/49/51/54/70/82/87/108/110/148/180/219, 9/10/11/49/51/54/70/82/87/108/180, 9/10/11/49/51/54/70/82/110/148/180, 9/10/11/49/51/70/82/108/110/148/180, 9/10/11/49/54/70/82/87/148/180, 9/10/11/49/70/82/87/108/110/180/200, 9/10/11/49/70/82/87/180, 9/10/11/49/70/82/110/148/180/225, 9/10/11/51/54/70/73/82/108/110/180, 9/10/11/51/54/70/73/82/108/180/200/225, 9/10/11/51/54/70/73/82/110/148/180, 9/10/11/51/54/70/82/148/180, 9/10/11/51/70/82/110/180/192/219, 9/10/11/54/70/82/87/108/180, 9/10/11/54/70/82/87/180/192, 9/10/11/54/70/82/148/180/200, 9/10/11/54/70/82/180/200/214, 9/10/11/70, 9/10/11/70/71/82/180/200/214, 9/10/11/70/73/82/87/110/180, 9/10/11/70/73/82/108/148/180, 9/10/11/70/73/82/148/180, 9/10/11/70/73/82/148/180/192/200, 9/10/11/70/73/82/180/200/214, 9/10/11/70/82, 9/10/11/70/82/87/110/180/219, 9/10/11/70/82/100/180/200/214, 9/10/11/70/82/107, 9/10/11/70/82/108/180/200/214, 9/10/11/70/82/148/180, 9/10/11/70/82/148/180/200/214, 9/10/11/70/82/180, 9/10/11/70/82/180/200/214, 9/10/11/70/87/180/200/214, 9/10/11/70/107, 9/10/12/49/51/54/70/82/108/148/180/225, 9/10/12/51/54/70/180/225, 9/10/12/51/70/73/82/148/180/200, 9/10/12/70/82/148/180/225, 9/10/12/70/82/180/200/214, 9/10/13/70, 9/10/13/70/82, 9/10/13/70/229, 9/10/13/207, 9/10/17, 9/10/17/49/51/54/70/73/82/108/110/148/180/192/200/219, 9/10/17/49/51/54/70/82/87/180/219, 9/10/17/49/70/82/148/180, 9/10/17/51/54/70/82/87/108/110/180/200, 9/10/17/51/70/73/82/87/108/110/148/180/219, 9/10/17/54/70/73/82/87/108/110/148/180/200, 9/10/17/54/70/73/82/108/110/148/180, 9/10/17/54/70/82/87/108/110/180, 9/10/17/70/73/82/87/180/219, 9/10/17/70/73/82/108/110/148/180/200, 9/10/17/70/82/87/148/180, 9/10/17/70/82/87/148/180/192/219, 9/10/17/70/82/108/148/180, 9/10/17/70/82/110/148/180, 9/10/17/70/82/110/148/180/200, 9/10/17/70/82/180/200/214, 9/10/17/70/104/160/165, 9/10/17/70/139/160/165, 9/10/26, 9/10/29/70, 9/10/36/70/82/180/200/214, 9/10/37, 9/10/38/70/82/180/200/214, 9/10/39, 9/10/39/186, 9/10/41, 9/10/45/70, 9/10/49/51/54/70/73/82/108/110/148/180/192, 9/10/49/51/54/70/73/82/148/180, 9/10/49/51/54/70/82/108/110/148/180/225, 9/10/49/51/54/70/82/110/148/180, 9/10/49/51/54/70/82/110/180, 9/10/49/51/54/70/82/148/180, 9/10/49/51/54/70/82/148/180/192, 9/10/49/51/70/82/108/148/180/219, 9/10/49/51/70/82/110/148/180, 9/10/49/51/70/82/180/225, 9/10/49/54/70/73/82/87/110/180, 9/10/49/54/70/82/87/110/180, 9/10/49/54/70/82/108/148/180/225, 9/10/49/70/73/82/87/108/148/180, 9/10/49/70/73/82/108/110/148/180/225, 9/10/49/70/82/87/148/180, 9/10/49/70/82/110/180/219, 9/10/51/54/70/73/82/108/180, 9/10/51/54/70/73/82/110/148/180, 9/10/51/54/70/73/82/110/180, 9/10/51/54/70/73/82/180/219, 9/10/51/54/70/73/82/180/225, 9/10/51/54/70/82/87/180, 9/10/51/54/70/82/148/180, 9/10/51/54/70/82/180, 9/10/51/54/70/82/180/200, 9/10/51/70/82/108/180, 9/10/51/70/82/110/180/200, 9/10/51/70/82/180/219, 9/10/54/70/73/82/108/148/180/192, 9/10/54/70/82/87/108/180/200, 9/10/54/70/82/180, 9/10/62, 9/10/70, 9/10/70/73/82/87/108/110/180, 9/10/70/73/82/87/180/192/219, 9/10/70/73/82/87/180/200, 9/10/70/73/82/108/110/148/180, 9/10/70/73/82/108/110/180/200/219, 9/10/70/73/82/108/148/180, 9/10/70/73/82/108/148/180/192, 9/10/70/73/82/108/148/180/192/219, 9/10/70/73/82/108/180, 9/10/70/73/82/148/180, 9/10/70/73/82/148/180/200, 9/10/70/73/82/180/192, 9/10/70/73/82/180/192/219, 9/10/70/82, 9/10/70/82/87/108/110/148/180/192/219, 9/10/70/82/87/108/110/180, 9/10/70/82/87/108/110/180/192, 9/10/70/82/87/180, 9/10/70/82/107, 9/10/70/82/107/229, 9/10/70/82/108/110/180/219, 9/10/70/82/108/180, 9/10/70/82/110/148/180, 9/10/70/82/110/180/219, 9/10/70/82/148/180, 9/10/70/82/148/180/200, 9/10/70/82/148/180/200/219, 9/10/70/82/180, 9/10/70/82/180/192/219, 9/10/70/82/180/200/214, 9/10/70/82/229, 9/10/70/92, 9/10/70/99, 9/10/70/99/229, 9/10/70/107/229, 9/10/70/156, 9/10/70/165, 9/10/70/229, 9/10/88, 9/10/90, 9/10/96, 9/10/107, 9/10/110, 9/10/111, 9/10/112, 9/10/133, 9/10/178, 9/10/185, 9/10/186, 9/10/196, 9/10/211, 9/10/226, 11/24, 11/24/219, and 11/36/206/208, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 536.
7 . The engineered carboxyesterase of claim 1 , wherein said polypeptide sequence is selected from the even-numbered sequence identifiers of: SEQ ID NOs: 6-160, 164-194, 198-228, 232-240, 246-262, 266-274, 278, 286-298, 300-310, 314-322, 326, 328, 332-348, 352, 356-374, 378-392, 398-408, 412, 416-444, 450, 452, 456-462, 466-470, 474-480, 484-490, 494, 496, 502-506, 510-516, 520, 524, 528-532 and 536.
8 . The engineered carboxyesterase of claim 1 , wherein said improved property is selected from: improved hydrolysis activity, solvent tolerance, thermostability, pH stability, enantioselectivity, regioselectivity, stereoselectivity, substrate scope, and/or reduced substrate or product inhibition, and reduced toxicity to bacterial host cells producing said engineered carboxyesterase.
9 . The engineered carboxyesterase of claim 8 , wherein said bacterial host cells comprise E. coli.
10 . The engineered carboxyesterase of claim 1 , wherein said engineered carboxyesterase exhibits greater activity than wild-type Xanthomonas campestris carboxyesterase in the conversion of compound (2a)
to compound (3a)
11 . The engineered carboxyesterase of claim 1 , wherein said engineered carboxyesterase exhibits greater enantioselectivity than wild-type Xanthomonas campestris carboxyesterase in the conversion of compound (2a)
to compound (3a)
12 . The engineered carboxyesterase of claim 1 , wherein said engineered carboxyesterase is purified.
13 . The engineered carboxyesterase of claim 1 , wherein said engineered carboxyesterase is immobilized.
14 . A composition comprising at least one engineered carboxyesterase of claim 1 .
15 . A polynucleotide sequence encoding at least one engineered carboxyesterase of claim 1 .
16 . The polynucleotide sequence of claim 15 , wherein said polynucleotide sequence is operably linked to a control sequence.
17 . The polynucleotide sequence of claim 15 , wherein said polynucleotide sequence is codon optimized.
18 . An expression vector comprising at least one polynucleotide sequence of claim 15 .
19 . A host cell comprising at least one expression vector of claim 18 .
20 . A host cell comprising at least one polynucleotide sequence of claim 15 .
21 . The host cell of claim 19 , wherein said host cell is E. coli.
22 . A method of producing an engineered carboxyesterase in a host cell, comprising culturing the host cell of claim 19 , under suitable conditions, such that at least one engineered carboxyesterase is produced.
23 . The method of claim 22 , further comprising recovering at least one engineered carboxyesterase from the culture and/or host cell.
24 . The method of claim 23 , further comprising the step of purifying said at least one engineered carboxyesterase.