6T9Q | pdb_00006t9q

Crystal structure of the second, C-terminal repeat of the DNA-binding domain of human TImeless

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	UNK_F_TYPE	e6t9qA1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: UNK_F_TYPE	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF26019	TIMELESS, tri-helical helix-turn-helix domain (HTH_TIMELESS)	TIMELESS, tri-helical helix-turn-helix domain	This helix-turn-helix (HTH) domain is found twice in human Protein timeless homolog (TIMELESS), which plays an important role in the control of DNA replication, maintenance of replication fork stability, maintenance of genome stability throughout nor ...	This helix-turn-helix (HTH) domain is found twice in human Protein timeless homolog (TIMELESS), which plays an important role in the control of DNA replication, maintenance of replication fork stability, maintenance of genome stability throughout normal DNA replication, DNA repair and in the regulation of the circadian clock [10-13]. This domain binds to both single-stranded DNA and double-stranded DNA, and has high affinity for DNA sequences rich in guanine that form G-quadruplex structures [10]. This domain is also found in TIMELESS from Drosophila melanogaster which is involved in circadian rhythm control.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein timeless homolog	DNA binding binding nucleic acid binding enzyme regulator activity enzyme activator activity molecular function activator activity molecular function regulator activity identical protein binding protein binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process regulation of double-strand break repair positive regulation of biological process regulation of cellular response to stress positive regulation of response to stimulus positive regulation of metabolic process positive regulation of DNA repair regulation of response to stress positive regulation of macromolecule metabolic process positive regulation of cellular process DNA repair double-strand break repair DNA metabolic process positive regulation of double-strand break repair regulation of DNA repair positive regulation of DNA metabolic process regulation of response to stimulus regulation of DNA metabolic process rhythmic process circadian rhythm DNA-templated DNA replication DNA-templated DNA replication maintenance of fidelity DNA replication replication fork processing detection of stimulus response to abiotic stimulus detection of abiotic stimulus developmental process multicellular organismal process epithelium development tube development branching morphogenesis of an epithelial tube morphogenesis of an epithelium tissue development tissue morphogenesis anatomical structure morphogenesis multicellular organism development tube morphogenesis morphogenesis of a branching structure anatomical structure development epithelial tube morphogenesis morphogenesis of a branching epithelium regulation of circadian rhythm cell cycle phase transition cell cycle cell cycle process cell division cellular response to chemical stimulus response to chemical response to cisplatin cellular response to cisplatin animal organ development respiratory tube development lung development respiratory system development system development regulation of DNA recombination positive regulation of double-strand break repair via homologous recombination recombinational repair double-strand break repair via homologous recombination positive regulation of DNA recombination DNA recombination regulation of double-strand break repair via homologous recombination cellular response to nitrogen compound response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to bleomycin response to bleomycin regulation of cell cycle phase transition signaling negative regulation of cell cycle intracellular signal transduction cell communication negative regulation of cell cycle phase transition signal transduction DNA replication checkpoint signaling regulation of cell cycle regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling negative regulation of DNA-templated DNA replication negative regulation of DNA replication regulation of DNA-templated DNA replication replication fork arrest negative regulation of DNA metabolic process regulation of DNA replication cellular response to hydroxyurea response to hydroxyurea	membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork intracellular membraneless organelle nuclear chromosome chromosome intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork intracellular membraneless organelle nuclear chromosome chromosome intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle replication fork nuclear lumen nucleoplasm chromatin site of double-strand break site of DNA damage

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007725	Timeless, PAB domain	Domain
A	IPR044998	Timeless	Family
A	IPR006906	Timeless, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9UNS1	psoriasis nasopharyngeal carcinoma ovarian cancer skin disease adrenal cortex carcinoma bipolar disorder depressive disorder IgA glomerulonephritis lung adenocarcinoma malignant glioma Mental Depression non-small cell lung carcinoma primitive neuroectodermal tumor tuberculosis atopic eczema psoriasis nasopharyngeal carcinoma ovarian cancer skin disease adrenal cortex carcinoma bipolar disorder depressive disorder IgA glomerulonephritis lung adenocarcinoma malignant glioma Mental Depression non-small cell lung carcinoma primitive neuroectodermal tumor tuberculosis atopic eczema breast cancer ductal breast carcinoma in situ invasive ductal breast carcinoma lung cancer osteosarcoma atypical teratoid rhabdoid tumor breast carcinoma glioblastoma large cell medulloblastoma malignant colon neoplasm medulloblastoma

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.