PDB 3X12

X-RAY DIFFRACTION1.80 Å3 chains3 ECOD domains

3D Structure(domains colored, ligands/nucleic acids shown)

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Chain AHLA class I histocompatibility antigen, B-57 alpha chainview chain

2 domains

Chain BBeta-2-microglobulinview chain

1 domain

#	Chain	Domain ID	Range	Family	Classification
1	A	e3x12A1	A:2-181	MHC_I	233 → 233.1 → 233.1.1
2	A	e3x12A2	A:182-276	C1-set	11 → 11.1 → 11.1.1
3	B	e3x12B1	B:1-99	C1-set	11 → 11.1 → 11.1.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors