The Burnham Institute

Sanford-burnham Medical Research Institute

Burnham Institute for Medical Research

Bin Guo

John C Reed

Xiao-kun Zhang

Siva Kumar Kolluri

Bingzhen Lin

Adam Godzik

Compounds that modulate the function of anti-apoptotic proteins such as Bcl-2 and Bcl-Xare identified. These compounds have the ability to convert the activity of Bcl-2-family member proteins from anti-apoptotic to pro-apoptotic. Methods for inducing apoptosis are described, together with methods for identifying molecules that induce apoptosis through interaction with Bcl-2-family members.

Conversion of apoptotic proteins

The invention provides a method of identifying an effective compound that modulates the binding of Humanin to Bax or Bid. The invention also provides a method of identifying an effective compound that modulates an activity of Bax or Bid. In addition, the invention provides a method of identifying a Humanin-like compound that binds to Bax or Bid or modulates an activity of Bax or Bid, or inhibits the apoptotic activity of Bax or Bid. The invention further provides an isolated polypeptide containing a mitochondrial-derived form of Humanin (SEQ ID NO:3) or a functional fragment thereof where the fragment contains the methionine at position 16 of SEQ ID NO:3.

Methods for identifying modulators of apoptosis

The invention provides Bcl-G polypeptides and encoding nucleic acids. Bcl-G polypeptides include Bcl-Gand Bcl-G. The invention also provides mouse Bcl-G. The invention also provides vectors containing Bcl-G nucleic acids, host cells containing such vectors, Bcl-G anti-sense nucleic acids and related compositions. The invention additionally provides Bcl-G oligonucleotides that can be used to hybridize to or amplify a Bcl-G nucleic acid. Anti-Bcl-G specific antibodies are also provided. Further provided are kits containing Bcl-G nucleic acids or Bcl-G specific antibodies. Such kits and reagents can be used to diagnose cancer, monitor response to therapy, or predict the prognosis of a cancer patient. The invention additionally provides methods of modulating apoptosis using Bcl-G polypeptides, encoding nucleic acids, or compounds that modulate the activity or expression of Bcl-G polypeptides. The methods for modulating apoptosis can be used to treat diseases such as cancer.

Bcl-G polypeptides, encoding nucleic acids and methods of use

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Bin Guo