PDB 1QQD

X-RAY DIFFRACTION2.70 Å3 chains3 ECOD domains

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

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Chain AHISTOCOMPATIBILITY LEUKOCYTE ANTIGEN (HLA)-CW4 (HEAVY CHAIN)view chain

2 domains

Chain BBETA-2 MICROGLOBULINview chain

1 domain

#	Chain	Domain ID	Range	Family	Classification
1	A	e1qqdA1	A:182-274	C1-set	11 → 11.1 → 11.1.1
2	A	e1qqdA2	A:2-181	MHC_I	233 → 233.1 → 233.1.1
3	B	e1qqdB1	B:0-98	C1-set	11 → 11.1 → 11.1.1

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