1REG | pdb_00001reg

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth X]	d1regx_	Alpha and beta proteins (a+b)	Ferredoxin-like	Translational regulator protein regA	Translational regulator protein regA	Translational regulator protein regA	(Tequatrovirus T4 ) [TaxId: 10665 ],	SCOPe (2.08)
B [auth Y]	d1regy_	Alpha and beta proteins (a+b)	Ferredoxin-like	Translational regulator protein regA	Translational regulator protein regA	Translational regulator protein regA	(Tequatrovirus T4 ) [TaxId: 10665 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth X]	SCOP2 Family	Translational regulator protein regA	8023173	4001308	SCOP2 (2022-06-29)
A [auth X]	SCOP2 Superfamily	Translational regulator protein regA	8035553	3001253	SCOP2 (2022-06-29)
B [auth Y]	SCOP2B Superfamily	Translational regulator protein regA	8035553	3001253	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	Translat_reg	e1regX1	A: a+b two layers	X: Alpha-beta plaits	H: Translational regulator protein regA	T: Translational regulator protein regA	F: Translat_reg	ECOD (v294.1)
B [auth Y]	RNase_P_Rpp14	e1regY1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: Rpp14/Pop5-like	T: Rpp14/Pop5-like	F: RNase_P_Rpp14	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	3.30.70.650	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Translation repressor RegA	CATH (4.3.0)
B [auth Y]	3.30.70.650	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Translation repressor RegA	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A [auth X], B [auth Y]	PF01818	Bacteriophage translational regulator (Translat_reg)	Bacteriophage translational regulator	The translational regulator protein regA is encoded by the T4 bacteriophage and binds to a region of messenger RNA (mRNA) that includes the initiator codon. RegA is unusual in that it represses the translation of about 35 early T4 mRNAs but does not ...	The translational regulator protein regA is encoded by the T4 bacteriophage and binds to a region of messenger RNA (mRNA) that includes the initiator codon. RegA is unusual in that it represses the translation of about 35 early T4 mRNAs but does not affect nearly 200 other mRNAs [1].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X], B [auth Y]	T4 REGA	RNA binding binding nucleic acid binding	-	-

Chains	Accession	Name	Type
A [auth X], B [auth Y]	IPR036516	Translation repressor RegA superfamily	Homologous Superfamily
A [auth X], B [auth Y]	IPR002702	Translation repressor RegA	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.