4H3H | pdb_00004h3h

Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA poymerase II CTD peptide phosphorylated at SER-7

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Rhodanese/Cell cycle control phosphatase	8095913	3000320	SCOP2B (2022-06-29)
D [auth E]	SCOP2B Superfamily	Rhodanese/Cell cycle control phosphatase	8095913	3000320	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	ARM repeat-like	8093027	3000116	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	ARM repeat-like	8093027	3000116	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)
D [auth E]	Peptidase_S26	e4h3hE1	A: alpha bundles	X: TIM beta/alpha-barrel	H: TIM barrels	T: TIM barrels	F: Peptidase_S26	ECOD (develop294)
A	TetR_N	e4h3hA1	A: alpha bundles	X: Globin-like	H: Nucleoside diphosphate kinases	T: Nucleoside diphosphate kinases	F: TetR_N	ECOD (develop294)
C [auth D]	Homeodomain	e4h3hD2	A: alpha bundles	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: Homeodomain	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
B	6.10.140.550	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
D [auth E]	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
D [auth E]	6.10.140.550	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
A	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
C [auth D]	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D [auth E]	PF04722	Ssu72-like protein (Ssu72)	Ssu72-like protein	-	Family
A, C [auth D]	PF11935	Symplekin/PTA1 N-terminal (SYMPK_PTA1_N)	Symplekin/PTA1 N-terminal	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth F]	Pol II CTD peptide	-	-	-
B, D [auth E]	RNA polymerase II subunit A C-terminal domain phosphatase SSU72	phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity RNA polymerase II CTD heptapeptide repeat modifying activity catalytic activity, acting on a protein RNA polymerase II CTD heptapeptide repeat phosphatase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription termination nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription termination nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process cellular process macromolecule metabolic process termination of RNA polymerase II transcription mRNA 3'-end processing co-transcriptional RNA 3'-end processing, cleavage and polyadenylation pathway co-transcriptional mRNA 3'-end processing, cleavage and polyadenylation pathway mRNA processing mRNA metabolic process RNA 3'-end processing RNA processing	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle protein-containing complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle intracellular organelle organelle mRNA cleavage and polyadenylation specificity factor complex mRNA cleavage factor complex membrane-enclosed lumen cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle protein-containing complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle intracellular organelle organelle mRNA cleavage and polyadenylation specificity factor complex mRNA cleavage factor complex membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
A, C [auth D]	Symplekin	-	regulation of protein binding regulation of molecular function negative regulation of protein binding regulation of binding negative regulation of binding biological regulation negative regulation of molecular function cell adhesion cellular process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing regulation of protein binding regulation of molecular function negative regulation of protein binding regulation of binding negative regulation of binding biological regulation negative regulation of molecular function cell adhesion cellular process RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process metabolic process macromolecule metabolic process RNA processing	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle cytoplasm cytosol membrane-bounded organelle nuclear stress granule nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle cytoplasm cytosol membrane-bounded organelle nuclear stress granule nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen ribonucleoprotein granule nuclear body nucleoplasm organelle lumen supramolecular complex nuclear ribonucleoprotein granule nuclear lumen cell-cell junction apical junction complex bicellular tight junction tight junction anchoring junction cell junction cell periphery plasma membrane membrane protein-containing complex nuclear protein-containing complex mRNA cleavage and polyadenylation specificity factor complex mRNA cleavage factor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D [auth E]	IPR006811	RNA polymerase II subunit A	Family
A, C [auth D]	IPR022075	Symplekin C-terminal	Domain
A, C [auth D]	IPR016024	Armadillo-type fold	Homologous Superfamily
A, C [auth D]	IPR021850	Symplekin/Pta1	Family
A, C [auth D]	IPR032460	Symplekin/Pta1, N-terminal	Domain
A, C [auth D]	IPR011989	Armadillo-like helical	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, D [auth E]	Pharos: Q9NP77	large cell medulloblastoma ovarian cancer medulloblastoma osteosarcoma
A, C [auth D]	Pharos: Q92797	chronic obstructive pulmonary disease gallbladder disease heart disease Malignant neoplasm of stomach ovarian cancer psoriasis gastric cancer hereditary diffuse gastric adenocarcinoma myocardial infarction pancreatic intraductal papillary-mucinous carcinoma gastric neoplasm malignant colon neoplasm osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
E [auth F]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

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.