RECOMBINATION, ALPHA-HELICAL DOMAIN, STRUCTURAL GENOMICS, PSI-2, PROTEIN STRUCTURE INITIATIVE, NORTHEAST STRUCTURAL GENOMICS CONSORTIUM, NESG CRYSTAL STRUCTURE OF THE N-TERMINAL DOMAIN OF PHAGE INTEGRASE/SITE- SPECIFIC RECOMBINASE (TNP) FROM HALOARCULA MARISMORTUI, NORTHEAST STRUCTURAL GENOMICS CONSORTIUM TARGET HMR208A 3NRW