共 14 条
[1]
Genome Engineering With Zinc-Finger Nucleases
[J].
Carroll, Dana
.
GENETICS,
2011, 188 (04)
:773-782

Carroll, Dana
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Utah, Sch Med, Dept Biochem, Salt Lake City, UT 84112 USA Univ Utah, Sch Med, Dept Biochem, Salt Lake City, UT 84112 USA
[2]
Genome editing with RNA-guided Cas9 nuclease in Zebrafish embryos
[J].
Chang, Nannan
;
Sun, Changhong
;
Gao, Lu
;
Zhu, Dan
;
Xu, Xiufei
;
Zhu, Xiaojun
;
Xiong, Jing-Wei
;
Xi, Jianzhong Jeff
.
CELL RESEARCH,
2013, 23 (04)
:465-472

Chang, Nannan
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Sun, Changhong
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, Coll Engn, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Gao, Lu
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Zhu, Dan
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Coll Engn, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Xu, Xiufei
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Coll Engn, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Zhu, Xiaojun
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Xiong, Jing-Wei
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China

Xi, Jianzhong Jeff
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
Peking Univ, Coll Engn, Beijing 100871, Peoples R China Peking Univ, Inst Mol Med, Beijing 100871, Peoples R China
[3]
Multiplex Genome Engineering Using CRISPR/Cas Systems
[J].
Cong, Le
;
Ran, F. Ann
;
Cox, David
;
Lin, Shuailiang
;
Barretto, Robert
;
Habib, Naomi
;
Hsu, Patrick D.
;
Wu, Xuebing
;
Jiang, Wenyan
;
Marraffini, Luciano A.
;
Zhang, Feng
.
SCIENCE,
2013, 339 (6121)
:819-823

Cong, Le
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA
Harvard Univ, Sch Med, Program Biol & Biomed Sci, Boston, MA 02115 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Ran, F. Ann
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA
Harvard Univ, Dept Mol & Cellular Biol, Cambridge, MA 02138 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

论文数: 引用数:
h-index:
机构:

Lin, Shuailiang
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA
Tsinghua Univ, Sch Life Sci, Beijing 100084, Peoples R China Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Barretto, Robert
论文数: 0 引用数: 0
h-index: 0
机构:
Columbia Univ, Coll Phys & Surg, Dept Biochem & Mol Biophys, New York, NY 10032 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Habib, Naomi
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Hsu, Patrick D.
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA
Harvard Univ, Dept Mol & Cellular Biol, Cambridge, MA 02138 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Wu, Xuebing
论文数: 0 引用数: 0
h-index: 0
机构:
MIT, Computat & Syst Biol Grad Program, Cambridge, MA 02139 USA
MIT, Koch Inst Integrat Canc Res, Cambridge, MA 02139 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Jiang, Wenyan
论文数: 0 引用数: 0
h-index: 0
机构:
Rockefeller Univ, Bacteriol Lab, New York, NY 10065 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Marraffini, Luciano A.
论文数: 0 引用数: 0
h-index: 0
机构:
Rockefeller Univ, Bacteriol Lab, New York, NY 10065 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA

Zhang, Feng
论文数: 0 引用数: 0
h-index: 0
机构:
Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
MIT, Dept Biol Engn, Dept Brain & Cognit Sci, McGovern Inst Brain Res, Cambridge, MA 02139 USA Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA
[4]
FUYAMA Y, 1986, GENETICS, V112, P237
[5]
Ends-out, or replacement, gene targeting in Drosphila
[J].
Gong, WJ
;
Golic, KG
.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,
2003, 100 (05)
:2556-2561

Gong, WJ
论文数: 0 引用数: 0
h-index: 0
机构:
Stowers Inst Med Res, Kansas City, MO 64110 USA Stowers Inst Med Res, Kansas City, MO 64110 USA

Golic, KG
论文数: 0 引用数: 0
h-index: 0
机构:
Stowers Inst Med Res, Kansas City, MO 64110 USA Stowers Inst Med Res, Kansas City, MO 64110 USA
[6]
Genome Engineering of Drosophila with the CRISPR RNA-Guided Cas9 Nuclease
[J].
Gratz, Scott J.
;
Cummings, Alexander M.
;
Nguyen, Jennifer N.
;
Hamm, Danielle C.
;
Donohue, Laura K.
;
Harrison, Melissa M.
;
Wildonger, Jill
;
O'Connor-Giles, Kate M.
.
GENETICS,
2013, 194 (04)
:1029-+

Gratz, Scott J.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Cummings, Alexander M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Genet Lab, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Nguyen, Jennifer N.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Hamm, Danielle C.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Integrated Program Biochem, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Donohue, Laura K.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Genet Lab, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Harrison, Melissa M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Integrated Program Biochem, Madison, WI 53706 USA
Univ Wisconsin, Sch Med & Publ Hlth, Dept Biomol Chem, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

Wildonger, Jill
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA

O'Connor-Giles, Kate M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA
Univ Wisconsin, Genet Lab, Madison, WI 53706 USA
Univ Wisconsin, Lab Cell & Mol Biol, Madison, WI 53706 USA Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA
[7]
Heritable gene targeting in zebrafish using customized TALENs
[J].
Huang, Peng
;
Xiao, An
;
Zhou, Mingguo
;
Zhu, Zuoyan
;
Lin, Shuo
;
Zhang, Bo
.
NATURE BIOTECHNOLOGY,
2011, 29 (08)
:699-700

Huang, Peng
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China
Peking Univ, Lab Chem Genom, Sch Chem Biol & Biotechnol, Shenzhen Grad Sch, Shenzhen, Peoples R China Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China

Xiao, An
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China

Zhou, Mingguo
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Agr Univ, Coll Plant Protect, Nanjing, Peoples R China Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China

Zhu, Zuoyan
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China

Lin, Shuo
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Lab Chem Genom, Sch Chem Biol & Biotechnol, Shenzhen Grad Sch, Shenzhen, Peoples R China
Univ Calif Los Angeles, Dept Mol Cell & Dev Biol, Los Angeles, CA USA Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China

Zhang, Bo
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China Peking Univ, Key Lab Cell Proliferat & Differentiat, Minist Educ, Coll Life Sci, Beijing 100871, Peoples R China
[8]
Efficient genome editing in zebrafish using a CRISPR-Cas system
[J].
Hwang, Woong Y.
;
Fu, Yanfang
;
Reyon, Deepak
;
Maeder, Morgan L.
;
Tsai, Shengdar Q.
;
Sander, Jeffry D.
;
Peterson, Randall T.
;
Yeh, J-R Joanna
;
Joung, J. Keith
.
NATURE BIOTECHNOLOGY,
2013, 31 (03)
:227-229

Hwang, Woong Y.
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Fu, Yanfang
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Reyon, Deepak
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Maeder, Morgan L.
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Program Biol & Biomed Sci, Boston, MA USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Tsai, Shengdar Q.
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Sander, Jeffry D.
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Peterson, Randall T.
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Med, Boston, MA USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Yeh, J-R Joanna
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Med, Boston, MA USA
Broad Inst, Cambridge, MA USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA

Joung, J. Keith
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Mol Pathol Unit, Ctr Canc Res, Charlestown, MA 02129 USA
Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Charlestown, MA USA
Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA
Harvard Univ, Sch Med, Program Biol & Biomed Sci, Boston, MA USA Massachusetts Gen Hosp, Cardiovasc Res Ctr, Charlestown, MA USA
[9]
Efficient and Specific Modifications of the Drosophila Genome by Means of an Easy TALEN Strategy
[J].
Liu, Jiyong
;
Li, Changqing
;
Yu, Zhongsheng
;
Huang, Peng
;
Wu, Honggang
;
Wei, Chuanxian
;
Zhu, Nannan
;
Shen, Yan
;
Chen, Yixu
;
Zhang, Bo
;
Deng, Wu-Min
;
Jiao, Renjie
.
JOURNAL OF GENETICS AND GENOMICS,
2012, 39 (05)
:209-215

Liu, Jiyong
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Li, Changqing
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Yu, Zhongsheng
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Huang, Peng
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Coll Life Sci, Minist Educ, Key Lab Cell Proliferat & Differentiat, Beijing 100871, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Wu, Honggang
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Wei, Chuanxian
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Zhu, Nannan
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Shen, Yan
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Coll Life Sci, Minist Educ, Key Lab Cell Proliferat & Differentiat, Beijing 100871, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Chen, Yixu
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Zhang, Bo
论文数: 0 引用数: 0
h-index: 0
机构:
Peking Univ, Coll Life Sci, Minist Educ, Key Lab Cell Proliferat & Differentiat, Beijing 100871, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Deng, Wu-Min
论文数: 0 引用数: 0
h-index: 0
机构:
Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA

Jiao, Renjie
论文数: 0 引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China Florida State Univ, Dept Biol Sci, Tallahassee, FL 32304 USA
[10]
RNA-Guided Human Genome Engineering via Cas9
[J].
Mali, Prashant
;
Yang, Luhan
;
Esvelt, Kevin M.
;
Aach, John
;
Guell, Marc
;
DiCarlo, James E.
;
Norville, Julie E.
;
Church, George M.
.
SCIENCE,
2013, 339 (6121)
:823-826

Mali, Prashant
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Yang, Luhan
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA
Harvard Univ, Sch Med, Biol & Biomed Sci Program, Boston, MA 02115 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Esvelt, Kevin M.
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Wyss Inst Biologically Inspired Engn, Cambridge, MA 02138 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Aach, John
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Guell, Marc
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

DiCarlo, James E.
论文数: 0 引用数: 0
h-index: 0
机构:
Boston Univ, Dept Biomed Engn, Boston, MA 02215 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Norville, Julie E.
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA

Church, George M.
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA
Harvard Univ, Wyss Inst Biologically Inspired Engn, Cambridge, MA 02138 USA Harvard Univ, Sch Med, Dept Genet, Boston, MA 02115 USA