Multiple Assemblies exist for SMTL entry 3nid
The Closed Headpiece of Integrin alphaIIB beta3 and its Complex with an alpahIIB beta3 -Specific Antagonist That Does Not Induce Opening; X-RAY DIFFRACTION 2.30 Å

SMTL ID
3nid.1
Ligands
CALCIUM ION; GLYCEROL; SULFATE ION; MAGNESIUM ION; SUGAR (N-ACETYL-D-GLUCOSAMINE); SUGAR (5-MER); SUGAR (2-MER)
Polypeptides
Integrin alpha-IIb; Integrin beta-3; Monoclonal antibody 10E5 heavy chain; Monoclonal antibody 10E5 light chain
Oligo-state
hetero-oligomer
SMTL ID
3nid.2
Ligands
CALCIUM ION; GLYCEROL; SULFATE ION; MAGNESIUM ION; SUGAR (N-ACETYL-D-GLUCOSAMINE); SUGAR (3-MER); SUGAR (2-MER)
Polypeptides
Integrin alpha-IIb; Integrin beta-3; Monoclonal antibody 10E5 heavy chain; Monoclonal antibody 10E5 light chain
Oligo-state
hetero-oligomer