Multiple Assemblies exist for SMTL entry 1rbh
CRYSTALLOGRAPHIC STRUCTURES OF RIBONUCLEASE S VARIANTS WITH NONPOLAR SUBSTITUTION AT POSITION 13: PACKING AND CAVITIES; X-RAY DIFFRACTION 1.70 Å

	SMTL ID 1rbh.1 Ligands SULFATE ION Polypeptides RIBONUCLEASE S (S-PEPTIDE); RIBONUCLEASE S (S-PROTEIN) Oligo-state hetero-1-1-mer
	SMTL ID 1rbh.2 Ligands SULFATE ION Polypeptides RIBONUCLEASE S (S-PEPTIDE); RIBONUCLEASE S (S-PROTEIN) Oligo-state hetero-2-2-mer