1UN6

THE CRYSTAL STRUCTURE OF A ZINC FINGER - RNA COMPLEX REVEALS TWO MODES OF MOLECULAR RECOGNITION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth B]	d1un6b1	Small proteins	beta-beta-alpha zinc fingers	beta-beta-alpha zinc fingers	Classic zinc finger, C2H2	Transcription factor IIIA, TFIIIA	AFRICAN CLAWED FROG (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)
B [auth C]	d1un6c1	Small proteins	beta-beta-alpha zinc fingers	beta-beta-alpha zinc fingers	Classic zinc finger, C2H2	Transcription factor IIIA, TFIIIA	AFRICAN CLAWED FROG (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)
C [auth D]	d1un6d1	Small proteins	beta-beta-alpha zinc fingers	beta-beta-alpha zinc fingers	Classic zinc finger, C2H2	Transcription factor IIIA, TFIIIA	AFRICAN CLAWED FROG (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034629	3001077	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034630	3001077	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034631	3001077	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034629	3001077	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034631	3001077	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034630	3001077	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034630	3001077	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	beta-beta-alpha zinc fingers	8034631	3001077	SCOP2B (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 B]	zf-C2H2_18	e1un6B3	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-C2H2_18	ECOD (1.6)
A [auth B]	zf-C2H2_17	e1un6B1	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-C2H2_17	ECOD (1.6)
A [auth B]	zf-H2C2_2_like	e1un6B2	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-H2C2_2_like	ECOD (1.6)
B [auth C]	zf-C2H2_17	e1un6C1	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-C2H2_17	ECOD (1.6)
B [auth C]	zf-C2H2_18,zf-H2C2_2_like	e1un6C3	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-C2H2_18,zf-H2C2_2_like	ECOD (1.6)
B [auth C]	zf-H2C2_2_like	e1un6C2	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-H2C2_2_like	ECOD (1.6)
C [auth D]	zf-C2H2_18,zf-H2C2_2_like	e1un6D1	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-C2H2_18,zf-H2C2_2_like	ECOD (1.6)
C [auth D]	zf-H2C2_2_like	e1un6D2	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-H2C2_2_like	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth B]	3.30.160.60	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Classic Zinc Finger	CATH (4.3.0)
B [auth C]	3.30.160.60	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Classic Zinc Finger	CATH (4.3.0)
C [auth D]	3.30.160.60	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Classic Zinc Finger	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth C], C [auth D]	PF22110	TFIIIA, beta-beta-alpha zinc finger (TFIIIA_zf-C2H2)	TFIIIA, beta-beta-alpha zinc finger	This entry represents a beta-beta-alpha zinc finger from TFIIIA, a transcription factor involved in ribosomal large subunit biogenesis. It binds the approximately 50 base pairs internal control region (ICR) of 5S ribosomal RNA genes. It is required f ...	This entry represents a beta-beta-alpha zinc finger from TFIIIA, a transcription factor involved in ribosomal large subunit biogenesis. It binds the approximately 50 base pairs internal control region (ICR) of 5S ribosomal RNA genes. It is required for their RNA polymerase III-dependent transcription and may also maintain the transcription of other genes [1,4].	Domain
A [auth B], B [auth C], C [auth D]	PF00096	Zinc finger, C2H2 type (zf-C2H2)	Zinc finger, C2H2 type	The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, an ...	The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth C], C [auth D]	TRANSCRIPTION FACTOR IIIA	DNA binding binding nucleic acid binding RNA binding cation binding ion binding metal ion binding small molecule binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis ribosomal large subunit biogenesis	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle nucleus intracellular membrane-bounded organelle
D [auth E], E [auth F]	5S RIBOSOMAL RNA	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth C], C [auth D]	IPR013087	Zinc finger C2H2-type	Domain
A [auth B], B [auth C], C [auth D]	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
A [auth B], B [auth C], C [auth D]	IPR051061	Zinc finger transcriptional regulators	Family
A [auth B], B [auth C], C [auth D]	IPR054599	Transcription factor IIIA, beta-beta-alpha zinc finger	Domain

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.