6ZDU

Structure of telomerase from Candida albicans in complexe with TWJ fragment of telomeric RNA

External Resource: Annotation

Domain Annotation: ECOD Classification
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	Telomerase_RBD	e6zduA2	A: alpha arrays	X: RNA-binding domain of telomerase (From Topology)	H: RNA-binding domain of telomerase (From Topology)	T: RNA-binding domain of telomerase	F: Telomerase_RBD	ECOD (1.6)
A	F_UNCLASSIFIED	e6zduA3	A: alpha bundles	X: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	T: helical bundle domain in reverse transcriptase-like polymerases	F: F_UNCLASSIFIED	ECOD (1.6)
A	RVT_1	e6zduA1	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RVT_1	ECOD (1.6)
B	Telomerase_RBD	e6zduB2	A: alpha arrays	X: RNA-binding domain of telomerase (From Topology)	H: RNA-binding domain of telomerase (From Topology)	T: RNA-binding domain of telomerase	F: Telomerase_RBD	ECOD (1.6)
B	F_UNCLASSIFIED	e6zduB3	A: alpha bundles	X: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)	T: helical bundle domain in reverse transcriptase-like polymerases	F: F_UNCLASSIFIED	ECOD (1.6)
B	RVT_1	e6zduB1	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RVT_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00078	Reverse transcriptase (RNA-dependent DNA polymerase) (RVT_1)	Reverse transcriptase (RNA-dependent DNA polymerase)	A reverse transcriptase gene is usually indicative of a mobile element such as a retrotransposon or retrovirus. Reverse transcriptases occur in a variety of mobile elements, including retrotransposons, retroviruses, group II introns, bacterial msDNAs ...	A reverse transcriptase gene is usually indicative of a mobile element such as a retrotransposon or retrovirus. Reverse transcriptases occur in a variety of mobile elements, including retrotransposons, retroviruses, group II introns, bacterial msDNAs, hepadnaviruses, and caulimoviruses.	Domain
A, B	PF12009	Telomerase ribonucleoprotein complex - RNA binding domain (Telomerase_RBD)	Telomerase ribonucleoprotein complex - RNA binding domain	Telomeres in most organisms are comprised of tandem simple sequence repeats [1]. The total length of telomeric repeat sequence at each chromosome end is determined in a balance of sequence loss and sequence addition [1]. One major influence on telome ...	Telomeres in most organisms are comprised of tandem simple sequence repeats [1]. The total length of telomeric repeat sequence at each chromosome end is determined in a balance of sequence loss and sequence addition [1]. One major influence on telomere length is the enzyme telomerase [1]. It is a reverse transcriptase that adds these simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme [1]. The RNA binding domain of telomerase - TRBD - is made up of twelve alpha helices and two short beta sheets [2]. How telomerase and associated regulatory factors physically interact and function with each other to maintain appropriate telomere length is poorly understood. It is known however that TRBD is involved in formation of the holoenzyme (which performs the telomere extension) in addition to recognition and binding of RNA [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Telomerase reverse transcriptase	telomerase activity RNA-directed DNA polymerase activity catalytic activity, acting on DNA DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity telomerase RNA reverse transcriptase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups RNA binding binding telomerase RNA binding organic cyclic compound binding telomerase activity RNA-directed DNA polymerase activity catalytic activity, acting on DNA DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity telomerase RNA reverse transcriptase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups RNA binding binding telomerase RNA binding organic cyclic compound binding nucleic acid binding sequence-specific DNA binding DNA binding telomeric DNA binding cation binding ion binding metal ion binding small molecule binding	cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process heterocycle metabolic process organic substance biosynthetic process nitrogen compound metabolic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process cellular biosynthetic process telomere organization RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process organic substance metabolic process heterocycle metabolic process organic substance biosynthetic process nitrogen compound metabolic process cellular component organization or biogenesis telomere maintenance via telomerase cellular metabolic process chromosome organization cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process telomere maintenance organic cyclic compound metabolic process organelle organization biosynthetic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process macromolecule metabolic process DNA biosynthetic process cellular aromatic compound metabolic process telomere capping	membrane-bounded organelle protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle cellular anatomical entity telomerase catalytic core complex transferase complex, transferring phosphorus-containing groups intracellular organelle telomerase holoenzyme complex organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle cellular anatomical entity telomerase catalytic core complex transferase complex, transferring phosphorus-containing groups intracellular organelle telomerase holoenzyme complex organelle ribonucleoprotein complex intracellular non-membrane-bounded organelle chromosome chromosome, telomeric region chromosomal region non-membrane-bounded organelle
C, D	Chains: C,D	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR021891	Telomerase ribonucleoprotein complex - RNA-binding domain	Domain
A, B	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A, B	IPR000477	Reverse transcriptase domain	Domain
A, B	IPR003545	Telomerase reverse transcriptase	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.