Projects & Interests

Projects:
(1) Rad51-Rad54 interaction during homologous recombination
(2) Structure and function of Rad51 and Rad54

Interests:
Protein structure, function and protein-protein interaction.

Education

2001 - PhD, Biochemistry, Stockholm University, Sweden
1989 - MSc, Plant Physiology, Lanzhou University, Lanzhou, P. R. China
1983 - BSc, Botany, Lanzhou University, Lanzhou, P. R. China

Work experience

2007 -             Project scientist
2002 - 2007 - Post Doctoral Fellow, Section of Microbiology, UC Davis, USA
2002 - Post Doctoral Fellow, Drexel University College of Medicine, Drexel Univ., USA
1996 - 2001 - PhD student, Dept. of Biochem. & Biophys, Stockholm University, Sweden
1993 -1995 - Visiting Scholar, Hong Kong Baptist University, HK
1983 -1993 - Teacher and Researcher, Dept. of Biology, Lanzhou University, P. R. China

Honors and awards

2004 - 2007 Post-doctoral Fellowship, Susan G. Komen Breast Cancer Foundation
1999 - The Best Poster Prize from Bioinformatics '99, the international bioinformatics meeting in Scandinavia, April 15-18, Lund, Sweden

Publications

Zhang, X.-P., Galkin, V., Yu, X., Egelman, E. and Heyer, W.-D. (2009) Loop 2 in S. Cerevisiae Rad51 protein regulates filament formation and ATPase activity. Nucleic Acid Res. 37:158-171 [PDF]

Li, X., Zhang, X.-P., Solinger, J., Kiianitsa, K., Yu, X., Egelman, E. and Heyer, W.-D. (2007) Rad51 and Rad54 ATPase activites are both required to modulate Rad51-dsDNA filament dynamics. Nucleic Acid Res. 35(12): 4124-4140. [PubMed] [PDF].

Heyer, W.-D., Li, X., Rolfsmeier, M. and Zhang, X.-P. (2006) Rad54, the Swiss Army knife of homologous recombination? Nucleic Acid Res, 34(15): 4115-4125 .[PubMed] [PDF]

Galkin, V.E., Wu, Y., Zhang, X.-P., Qian, X., He, Y., Yu, X., Heyer, E.-D., Luo, Y. and Egelman, E.H. (2006) The Rad51/RadA N-terminal domain activates Nucleoprotein Filaments. STRUCTURE, 14, 983-992. [PubMed] [PDF] [Cover Illustration] [Preview by Wyman, C. (2006) Monomer Networking Activates Recombinases. Structure 14(6): 949-950 [PDF]]

Zhang, X.-P., Lee, K.-I., Solinger, J.A., Kiianitsa, K., and Heyer, W.-D. (2005) Gly103 in the N-terminal domain of S. cerevisiae Rad51 protein is critical for DNA binding. J. Biol. Chem. 280, 26303-26311.[Pubmed][Pdf file]

Zhang, X.-P., and Glaser, E. (2002) Interaction of chloroplast and mitochondrial signal sequences with organellar hsp70. Trends in Plant Science, 7(1): 14-21 [PubMed] [Pdf file]

Zhang, X.-P., Sjöling, S., Tanudji, M., Somogyi, L., Andreu, D., Eriksson, L. E. G., Gräslund, A., Whelan, J. and Glaser, E. (2001) Mutagenesis and computer modelling approach to study determinants for recognition of signal peptides by the mitochondrial processing peptidase. Plant J., 27 (5):427-438[PubMed] [Pdf file]

Zhang, X.-P., Elofsson, A., Andreu, D. and Glaser, E. (1999) Interaction of mitochondrial presequence with DnaK and mitochondrial hsp70. J. Mol. Biol. 288(1):177-190 [PubMed] [Pdf file]

Pavlov, P. F., Moberg, P., Zhang, X.-P. and Glaser, E. (1999) CNBr chemical cleavage of the overexpressed mitochondrial precursors: a new strategy of construct import competent preproteins. Biochem. J., 341:95-103 [PubMed] [Pdf file]

Full publication list

Hobies

Photography (see my photos) and website design (see my first design )

Computer hardware:

Intel processors, AMD processors

Photo Album

(1) Heyer lab hikes: Coming soon ...
(2) Traveling photos: Coming soon ...

Favorite links*

LINKS FOR PROGRAMS / WEBSERVERS

Homology Searching - BLAST
Molecular Modeling - ICM, Modeller, Whatif, ECEPPAK
Model Verification - Procheck, Whatif, ProsaII, Verify3D, ProQ, ModFOLD, MetaMQAPII, QMEANclust
Molecular Docking - Autodock
Molecular Graphics - PyMol, Molscript, Raster3D, Grasp, Swiss PdbViewer
Residue Conservation - Sequence logo
Sequence Alignment - ClustalX, CLustalW, Bioedit, EMBOSS, eBioX (Mac) and eBioTools (Mac)
Alignment Editing - Bioedit, Gendoc

 

MOLECULAR BIOLOGY

DNA double digest table
Restriction Enzyme Database
NEBcutter
Protein interaction
Protease inhibitors

QUESTIONS AND ANSWERS

1. How to visualize sequence files on PC, Mac and Linux:
PC users: Chromas Lite(Pro), SequenceScanner, Bioedit, Staden, EMBOSS, VectorNTI.
Mac users: 4peaks, Staden, EMBOSS, ??
Linux users: EMBOSS, Staden, or the PC/Windows programs through Wine, or VMware.

2. How to run Windows and Linux (Unix) applications on the same computer?
(1)Dual/multi-operating systems may be the best way if you don't need to talk between Windows application and Linux application.
(2)If you do and mainly depend on Windows, Cygwin may help.
(3) Wine and VMware may be the good solution for Linux (Unix) users. Based on my experience, VMware is extremely slow.

3. How to ...



OTHER USEFUL LINLKS

Links for Linux fans
Phoronix

Databases
- NCBI, Swiss-Prot, PDB, Yeast Genome Database, Human Pathway Interactions, MIPS, Protein interaction (based on structure), Protein interaction (Genetic and Physical interaction), Finley Lab Interactions Databases, BioGRID,DIP

Protein lounge (Commercial databases)

Concensus prediction for protein secondary structure
- NPSA 

Full length protein 3D structural prediction servers
- I-TASSER at the University of Kansas
- Robetta Server at the University of Washington

Concensus fold recognition servers
- Meta server from bioinfo Bank, Poland
- Pcons
- MetaTASSER at the Georgia Institute of Technology
- LOMETS at the University of Kansas

Other homology template searching servers
- HHpred in Germany
- RAPTOR Server at the University of Chicago
- SP3 fold recognition
- Inub at the University at Baffalo

On-line molecular docking server
- GRAMM-X

Signal peptide prediction and protein localization
- MitoProt, SignalP (V3.0), SignalP (V2.0b2), TargetP, ChloroP, Predotar, ProtComP, NNPSL, PSORT, Yeast protein localization, PredictNLS

Phosphorylation site prediction
- NetPhos, PhosphoBase

Links for DNA repair
DNA Repair Wiki
DNA Repair Interest Group at NIH
DNA Damage Response and Repair Mechanisms
DNA Repair at ELSEVIER
DNA Repair by John W. Kimball
Mutation, Mutagens, and DNA Repair by Beth A. Montelone
Human DNA Repair Genes by Cancer Research UK
The book of "DNA Repair and Mutagenesis" DNA Repair from WormBook
DNA Repair from Reactome

Other info:

memberships

2002 - Present: American Society for Biochemistry and Molecular Biology
2003 - 2006: Internation Computational Biological Society

Updated on Jan. 09, 2009