Annotations: 1BH9

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bh9a_	All alpha proteins	Histone-fold	Histone-fold	TBP-associated factors, TAFs	TAF(II)18	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1bh9b_	All alpha proteins	Histone-fold	Histone-fold	TBP-associated factors, TAFs	TAF(II)28	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	TBP-associated factors, TAFs	8024439	4000797	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Core histone-like	8036818	3001387	SCOP2 (2022-06-29)
B	SCOP2 Family	TBP-associated factors, TAFs	8024445	4000797	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Core histone-like	8036824	3001387	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	TFIID-18kDa	e1bh9A1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: TFIID-18kDa	ECOD (1.6)
B	TAFII28	e1bh9B1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: TAFII28	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
B	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02269	Transcription initiation factor IID, 18kD subunit (TFIID-18kDa)	Transcription initiation factor IID, 18kD subunit	This family includes the Spt3 yeast transcription factors and the 18kD subunit from human transcription initiation factor IID (TFIID-18). Determination of the crystal structure reveals an atypical histone fold [1]	Domain
B	PF04719	hTAFII28-like protein conserved region (TAFII28)	hTAFII28-like protein conserved region	The general transcription factor, TFIID, consists of the TATA-binding protein (TBP) associated with a series of TBP-associated factors (TAFs) that together participate in the assembly of the transcription preinitiation complex. The conserved region ...	The general transcription factor, TFIID, consists of the TATA-binding protein (TBP) associated with a series of TBP-associated factors (TAFs) that together participate in the assembly of the transcription preinitiation complex. The conserved region is found at the C-terminal of most member proteins. The crystal structure of hTAFII28 with hTAFII18 shows that this region is involved in the binding of these two subunits. The conserved region contains four alpha helices and three loops arranged as in histone H3 [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TAFII18	DNA binding binding nucleic acid binding transcription factor binding protein binding TBP-class protein binding general transcription initiation factor binding protein heterodimerization activity protein dimerization activity general transcription initiation factor activity RNA polymerase II general transcription initiation factor activity	regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process transcription initiation at RNA polymerase II promoter positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II regulation of biological process positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription initiation by RNA polymerase II biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression positive regulation of transcription by RNA polymerase II macromolecule biosynthetic process nucleic acid metabolic process DNA-templated transcription initiation positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process transcription preinitiation complex assembly cellular component organization cellular component biogenesis protein-DNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization protein-DNA complex assembly RNA polymerase II preinitiation complex assembly mRNA transcription by RNA polymerase II mRNA transcription mRNA metabolic process	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen RNA polymerase II transcription regulator complex RNA polymerase II, holoenzyme protein-containing complex nuclear protein-containing complex transcription regulator complex transferase complex nucleoplasm catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex RNA polymerase complex transcription factor TFIID complex DNA-directed RNA polymerase complex intracellular protein-containing complex
B	TAFII28	DNA binding binding nucleic acid binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding nuclear receptor binding protein binding DNA-binding transcription factor binding nuclear vitamin D receptor binding TBP-class protein binding general transcription initiation factor binding nuclear thyroid hormone receptor binding protein heterodimerization activity protein dimerization activity DNA binding binding nucleic acid binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding nuclear receptor binding protein binding DNA-binding transcription factor binding nuclear vitamin D receptor binding TBP-class protein binding general transcription initiation factor binding nuclear thyroid hormone receptor binding protein heterodimerization activity protein dimerization activity general transcription initiation factor activity RNA polymerase II general transcription initiation factor activity transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity	regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process transcription initiation at RNA polymerase II promoter positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II regulation of biological process positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription initiation by RNA polymerase II biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression positive regulation of transcription by RNA polymerase II macromolecule biosynthetic process nucleic acid metabolic process DNA-templated transcription initiation positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process transcription preinitiation complex assembly cellular component organization cellular component biogenesis protein-DNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization protein-DNA complex assembly RNA polymerase II preinitiation complex assembly viral gene expression biological process involved in interspecies interaction between organisms viral process modulation of process of another organism viral transcription positive regulation by host of viral transcription host-mediated perturbation of symbiont process mRNA transcription by RNA polymerase II mRNA transcription mRNA metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system RNA polymerase II transcription regulator complex RNA polymerase II, holoenzyme protein-containing complex nucleus membrane-enclosed lumen membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system RNA polymerase II transcription regulator complex RNA polymerase II, holoenzyme protein-containing complex nucleus membrane-enclosed lumen nuclear protein-containing complex transcription regulator complex transferase complex intracellular organelle lumen nucleoplasm catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen RNA polymerase complex transcription factor TFIID complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR009072	Histone-fold	Homologous Superfamily
A	IPR003195	Transcription initiation factor IID, subunit 13	Family
B	IPR009072	Histone-fold	Homologous Superfamily
B	IPR045127	Transcription initiation factor TFIID subunit 11-like	Family
B	IPR006809	TAFII28-like protein domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q15543	intellectual disability, autosomal recessive 60 autosomal recessive primary microcephaly cystic fibrosis MENTAL RETARDATION, AUTOSOMAL RECESSIVE 60 pituitary cancer breast cancer intellectual disability osteosarcoma Crohn disease pancreatic ductal adenocarcinoma
B	Pharos: Q15544	breast cancer lymphoplasmacytic lymphoma ovarian cancer heart disease medulloblastoma prostate carcinoma juvenile dermatomyositis osteosarcoma systemic lupus erythematosus

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.