3DU1

The 2.0 Angstrom Resolution Crystal Structure of HetL, a Pentapeptide Repeat Protein involved in Heterocyst Differentiation Regulation from the Cyanobacterium Nostoc sp. Strain PCC 7120

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth X]	SCOP2 Family	Pentapeptide repeat-like	8100299	4002075	SCOP2 (2022-06-29)
A [auth X]	SCOP2 Superfamily	Pentapeptide repeat-like	8100300	3000796	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	PF00805	e3du1X4	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pentapeptide repeats (From Topology)	T: Pentapeptide repeats	F: PF00805	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	2.160.20.80	Mainly Beta	3 Solenoid	Pectate Lyase C-like	E3 ubiquitin-protein ligase SopA	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF00805	Pentapeptide repeats (8 copies) (Pentapeptide)	Pentapeptide repeats (8 copies)	-	Repeat

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR044195	Pentapeptide repeat containing protein TL17-like	Family
A [auth X]	IPR001646	Pentapeptide repeat	Repeat

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 R01GM133198.