Annotations: 4I1K

Crystal Structure of VRN1 (Residues 208-341)

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	fn3	e4i1kA1	A: alpha arrays	X: GIY-YIG endonuclease	H: GIY-YIG endonuclease	T: GIY-YIG endonuclease	F: fn3	ECOD (v295)
B	Ribosomal_L12_N	e4i1kB2	A: alpha arrays	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: Ribosomal_L12_N	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.330.10	Mainly Beta	Beta Barrel	At1g16640 B3 domain	DNA-binding pseudobarrel domain	CATH (4.3.0)
B	2.40.330.10	Mainly Beta	Beta Barrel	At1g16640 B3 domain	DNA-binding pseudobarrel domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02362	B3 DNA binding domain (B3)	B3 DNA binding domain	This is a family of plant transcription factors with various roles in development, the aligned region corresponds the B3 DNA binding domain as described in [1] this domain is found in VP1/AB13 transcription factors [2]. Some proteins also have a sec ...	This is a family of plant transcription factors with various roles in development, the aligned region corresponds the B3 DNA binding domain as described in [1] this domain is found in VP1/AB13 transcription factors [2]. Some proteins also have a second AP2 DNA binding domain Pfam:PF00847 such as RAV1 Swiss:Q9ZWM9 [1]. DNA binding activity was demonstrated by [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	B3 domain-containing transcription factor VRN1	DNA binding binding nucleic acid binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding transcription regulatory region nucleic acid binding	response to stimulus vernalization response response to stress response to abiotic stimulus response to cold response to temperature stimulus RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process response to stimulus vernalization response response to stress response to abiotic stimulus response to cold response to temperature stimulus RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process multicellular organismal process regulation of developmental process regulation of reproductive process reproductive process developmental process involved in reproduction reproductive shoot system development multicellular organism development anatomical structure development reproductive structure development post-embryonic development regulation of multicellular organismal process regulation of flower development system development developmental process regulation of biological process regulation of multicellular organismal development reproductive system development biological regulation regulation of shoot system development flower development plant gross anatomical part developmental process regulation of post-embryonic development shoot system development animal gross anatomical part developmental process	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015300	DNA-binding pseudobarrel domain superfamily	Homologous Superfamily
A, B	IPR050655	Plant B3 domain-containing	Family
A, B	IPR003340	B3 DNA binding domain	Domain

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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.