Multiple Assemblies exist for SMTL entry 2x7a
STRUCTURAL BASIS OF HIV-1 TETHERING TO MEMBRANES BY THE BST2-TETHERIN ECTODOMAIN; X-RAY DIFFRACTION 2.77 Å

	SMTL ID 2x7a.1 Ligands SODIUM ION; CHLORIDE ION Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer
	SMTL ID 2x7a.2 Ligands SODIUM ION Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer
	SMTL ID 2x7a.3 Ligands CHLORIDE ION; SODIUM ION Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer
	SMTL ID 2x7a.4 Ligands GLYCEROL; CHLORIDE ION; SODIUM ION Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer
	SMTL ID 2x7a.5 Ligands MAGNESIUM ION; SODIUM ION; CHLORIDE ION Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer
	SMTL ID 2x7a.6 Ligands - Polypeptides BONE MARROW STROMAL ANTIGEN 2 Oligo-state homo-dimer