Annotations: 3H7H

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Spt4	e3h7hA1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: Spt4	ECOD (1.6)
B	Spt5-NGN	e3h7hB1	A: a+b two layers	X: Alpha-beta plaits	H: N-utilization substance G protein NusG, N-terminal domain (From Topology)	T: N-utilization substance G protein NusG, N-terminal domain	F: Spt5-NGN	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.40.210	Alpha Beta	2-Layer Sandwich	Herpes Virus-1		CATH (4.3.0)
B	3.30.70.940	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	NusG, N-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF06093	Spt4/RpoE2 zinc finger (Spt4)	Spt4/RpoE2 zinc finger	This family consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [2]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via ...	This family consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [2]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via the modulation of chromatin structure. Spt4 and Spt5 are tightly associated in a complex, while the physical association of the Spt4-Spt5 complex with Spt6 is considerably weaker. It has been demonstrated that Spt4, Spt5, and Spt6 play roles in transcription elongation in both yeast and humans including a role in activation by Tat. It is known that Spt4, Spt5, and Spt6 are general transcription-elongation factors, controlling transcription both positively and negatively in important regulatory and developmental roles [1]. RpoE2 is one of 13 subunits in the archaeal RNA polymerase. These proteins contain a C4-type zinc finger, and the structure has been solved in [3]. The structure reveals that Spt4-Spt5 binding is governed by an acid-dipole interaction between Spt5 and Spt4, and the complex binds to and travels along the elongating RNA polymerase. The Spt4-Spt5 complex is likely to be an ancient, core component of the transcription elongation machinery.	Domain
B	PF03439	Early transcription elongation factor of RNA pol II, NGN section (Spt5-NGN)	Early transcription elongation factor of RNA pol II, NGN section	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Transcription elongation factor SPT4	basal transcription machinery binding RNA polymerase binding protein binding binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase core enzyme binding enzyme binding protein heterodimerization activity protein dimerization activity cation binding transition metal ion binding zinc ion binding ion binding basal transcription machinery binding RNA polymerase binding protein binding binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase core enzyme binding enzyme binding protein heterodimerization activity protein dimerization activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process regulation of DNA-templated transcription elongation positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of cellular metabolic process positive regulation of DNA-templated transcription, elongation positive regulation of biosynthetic process positive regulation of cellular process DNA-templated transcription elongation positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process transcription elongation by RNA polymerase II protein-DNA complex organization cellular component organization transcription by RNA polymerase II chromatin organization chromatin remodeling cellular component organization or biogenesis transcription elongation-coupled chromatin remodeling protein-containing complex organization negative regulation of biological process negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process negative regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of DNA-templated transcription, elongation negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of biosynthetic process negative regulation of transcription elongation by RNA polymerase II regulation of transcription elongation by RNA polymerase II regulation of transcription by RNA polymerase II negative regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex DSIF complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex DSIF complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
B	Transcription elongation factor SPT5	protein-containing complex binding chromatin binding binding protein heterodimerization activity protein binding protein dimerization activity RNA binding organic cyclic compound binding nucleic acid binding mRNA binding enzyme binding	regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of DNA-templated transcription elongation regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of DNA-templated transcription elongation regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process positive regulation of DNA-templated transcription cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of DNA-templated transcription, elongation positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process DNA-templated transcription elongation positive regulation of RNA biosynthetic process cellular process positive regulation of cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process negative regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of DNA-templated transcription, elongation negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of biosynthetic process transcription elongation by RNA polymerase II transcription by RNA polymerase II regulation of transcription elongation by RNA polymerase II catabolic process macroautophagy autophagy regulation of autophagy cellular catabolic process positive regulation of macroautophagy process utilizing autophagic mechanism positive regulation of autophagy regulation of catabolic process positive regulation of catabolic process regulation of macroautophagy regulation of cellular catabolic process positive regulation of cellular catabolic process protein-DNA complex organization cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis transcription elongation-coupled chromatin remodeling protein-containing complex organization regulation of transcription by RNA polymerase II negative regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex DSIF complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex DSIF complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038510	Spt4 superfamily	Homologous Superfamily
A	IPR009287	Transcription initiation Spt4	Family
A	IPR029040	RNA polymerase subunit RPABC4/transcription elongation factor Spt4	Homologous Superfamily
A	IPR022800	Spt4/RpoE2 zinc finger	Domain
B	IPR041980	Spt5, KOW domain repeat 6	Domain
B	IPR041976	Spt5, KOW domain repeat 3	Domain
B	IPR039385	NGN domain, eukaryotic	Domain
B	IPR014722	Large ribosomal subunit protein uL2, domain 2	Homologous Superfamily
B	IPR022581	Spt5 transcription elongation factor, N-terminal	Domain
B	IPR024945	Spt5 C-terminal domain	Domain
B	IPR006645	NusG-like, N-terminal	Domain
B	IPR041975	Spt5, KOW domain repeat 2	Domain
B	IPR039659	Transcription elongation factor SPT5	Family
B	IPR036735	NusG, N-terminal domain superfamily	Homologous Superfamily
B	IPR008991	Translation protein SH3-like domain superfamily	Homologous Superfamily
B	IPR041973	Spt5, KOW domain repeat 1	Domain
B	IPR005100	NGN domain	Domain
B	IPR041977	Spt5, KOW domain repeat 4	Domain
B	IPR017071	Transcription elongation factor Spt5, eukaryote	Family
B	IPR005824	KOW	Domain
B	IPR041978	Spt5, KOW domain repeat 5	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P63272	Alzheimer disease lung cancer pancreatic ductal adenocarcinoma prostate carcinoma breast cancer osteosarcoma pituitary cancer psoriasis hypertensive disorder ovarian cancer plasma cell myeloma
B	Pharos: O00267	diabetes mellitus ovarian cancer