PDB 2BTU

X-RAY DIFFRACTION2.31 Å0 chains4 ECOD domains

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

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2 domains

2 domains

#	Chain	Domain ID	Range	Family	Classification
1	A	e2btuA1	A:167-341	AIRS_C	304 → 304.111 → 304.111.1
2	A	e2btuA2	A:13-166	AIRS	301 → 301.2 → 301.2.1
3	B	e2btuB1	B:167-338	AIRS_C	304 → 304.111 → 304.111.1
4	B	e2btuB2	B:12-166	AIRS	301 → 301.2 → 301.2.1

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