1. Pearson H (2006), Genetics: what is a gene? Nature 441 (7092): 398–401.

2. Liu H. et. al.  (2006), Cooperative activity of BRG1 and Z-DNA formation in chromatin remodeling. Mol. Cell. Biol. 26(7): 2550.

3. Dutta S et al. (2009), Data deposition and annotation at the worldwide protein data bank. Mol. Biotechnol. 42 (1):1-13

4. Sussman D, Nix JC, Wilson C. (2000) The structural basis for molecular recognition by the vitamin B 12 RNA aptamer. Nat Struct Biol. Jan;7(1):53-7.

5. Lott WB, Takyar SS, Tuppen J, Crawford DH, Harrison M, Sloots TP, Gowans EJ. (2001) Vitamin B12 and hepatitis C: molecular biology and human pathology. Proc Natl Acad Sci U S A.  24;98(9):4916-21.

6. Levitt M, Chothia C. (1976)  Structural patterns in globular proteins. Nature 261 (5561).

7. C. Hadley & D. T. Jones. (1999) A systematic comparison of protein structure classifications: SCOP, CATH and FSSP. Structure 7(9):1099-1112.

8. Cuff, Alison L. et al. (2011). Extending CATH: increasing coverage of the protein structure universe and linking structure with function. Nucleic Acids Res. (England) 39 (Database issue): D420–6.

9. Lo Conte, L. et al. (2000). SCOP: A Structural Classification of Proteins database. Nucleic acids research 28 (1): 257–259.

10. Voet and Voet Biochemisty ch6. p145; Via and Tramontano,  Protein Structural Motifs: Identification, Annotation and Use in Function Prediction.

11. Lewis, P.N., Momany, F.A. & Scheraga, H. A. (1971). Folding of polypeptide chains in proteins: a proposed mechanism for folding. Proc. Nat. Acad. Sci., U.S.A., 68, 2293-2297.