1CQH

HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN REF-1 (RESIDUES 59-71 OF THE P50 SUBUNIT OF NFKB), NMR, MINIMIZED AVERAGE STRUCTURE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1cqha_	Alpha and beta proteins (a/b)	Thioredoxin fold	Thioredoxin-like	Thioltransferase	Thioredoxin	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	SCOP2B Superfamily	Thioredoxin-like	8042720	3000031	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)
A	Thioredoxin	e1cqhA1	A: a+b three layers	X: Thioredoxin-like	H: Thioredoxin-like (From Topology)	T: Thioredoxin-like	F: Thioredoxin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00085	Thioredoxin (Thioredoxin)	Thioredoxin	Thioredoxins are small enzymes that participate in redox reactions, via the reversible oxidation of an active centre disulfide bond. Some members with only the active site are not separated from the noise.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	THIOREDOXIN	thioredoxin-disulfide reductase (NADPH) activity protein-disulfide reductase [NAD(P)H] activity oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity disulfide oxidoreductase activity antioxidant activity catalytic activity, acting on a protein protein-disulfide reductase activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor RNA binding binding nucleic acid binding identical protein binding thioredoxin-disulfide reductase (NADPH) activity protein-disulfide reductase [NAD(P)H] activity oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity disulfide oxidoreductase activity antioxidant activity catalytic activity, acting on a protein protein-disulfide reductase activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor RNA binding binding nucleic acid binding identical protein binding protein binding protein homodimerization activity protein dimerization activity	regulation of molecular function positive regulation of molecular function regulation of DNA binding regulation of binding biological regulation positive regulation of binding positive regulation of DNA binding regulation of cellular process regulation of protein modification process positive regulation of protein metabolic process positive regulation of biological process regulation of primary metabolic process positive regulation of peptidyl-cysteine S-nitrosylation positive regulation of metabolic process regulation of molecular function positive regulation of molecular function regulation of DNA binding regulation of binding biological regulation positive regulation of binding positive regulation of DNA binding regulation of cellular process regulation of protein modification process positive regulation of protein metabolic process positive regulation of biological process regulation of primary metabolic process positive regulation of peptidyl-cysteine S-nitrosylation positive regulation of metabolic process positive regulation of protein modification process peptidyl-amino acid modification positive regulation of macromolecule metabolic process protein metabolic process protein modification process positive regulation of cellular process regulation of biological process peptidyl-cysteine modification regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process peptidyl-cysteine S-nitrosylation regulation of peptidyl-cysteine S-nitrosylation macromolecule modification metabolic process cellular process macromolecule metabolic process protein nitrosylation regulation of metabolic process protein localization negative regulation of protein transport regulation of localization establishment of protein localization negative regulation of nucleocytoplasmic transport nitrogen compound transport nucleocytoplasmic transport nuclear transport negative regulation of biological process negative regulation of intracellular protein transport negative regulation of transport localization establishment of localization in cell cellular macromolecule localization nuclear export regulation of protein export from nucleus regulation of intracellular transport negative regulation of establishment of protein localization intracellular transport regulation of nucleocytoplasmic transport protein localization to nucleus protein export from nucleus establishment of localization maintenance of location regulation of intracellular protein transport intracellular protein transport maintenance of protein location cellular localization regulation of protein localization transport maintenance of location in cell maintenance of protein location in cell negative regulation of cellular process negative regulation of protein export from nucleus negative regulation of protein localization negative regulation of intracellular transport regulation of transport regulation of establishment of protein localization maintenance of protein location in nucleus regulation of protein transport protein transport regulation of cellular localization macromolecule localization protein localization to organelle maintenance of protein localization in organelle response to stimulus response to radiation response to abiotic stimulus positive regulation of phosphorylation regulation of protein phosphorylation regulation of peptidyl-serine phosphorylation positive regulation of phosphate metabolic process peptidyl-serine modification peptidyl-serine phosphorylation regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation positive regulation of peptidyl-serine phosphorylation regulation of phosphorus metabolic process regulation of phosphorylation cellular response to stimulus positive regulation of cell communication regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signal transduction signaling regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of intracellular signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction regulation of response to stimulus regulation of cell communication phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signaling cellular detoxification of hydrogen peroxide detoxification of inorganic compound detoxification cellular response to oxidative stress reactive oxygen species metabolic process cellular response to chemical stress cellular oxidant detoxification response to hydrogen peroxide cellular response to reactive oxygen species cellular response to stress response to stress cellular detoxification hydrogen peroxide metabolic process response to oxygen-containing compound cellular response to oxygen-containing compound response to reactive oxygen species cellular response to hydrogen peroxide response to toxic substance response to oxidative stress cellular response to chemical stimulus response to chemical detoxification of hydrogen peroxide cellular response to toxic substance cell redox homeostasis cellular homeostasis homeostatic process RNA 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 transcription by RNA polymerase II 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 regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of 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 regulation of macromolecule biosynthetic process regulation of DNA-templated transcription negative regulation of RNA metabolic process response to nitric oxide response to nitrogen compound	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol nucleus extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen nuclear lumen
B	REF-1 PEPTIDE	DNA-(apurinic or apyrimidinic site) endonuclease activity endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity DNA endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity class II DNA-(apurinic or apyrimidinic site) endonuclease activity site-specific endodeoxyribonuclease activity, specific for altered base DNA-(apurinic or apyrimidinic site) endonuclease activity endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity DNA endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity class II DNA-(apurinic or apyrimidinic site) endonuclease activity site-specific endodeoxyribonuclease activity, specific for altered base phosphoric ester hydrolase activity phosphodiesterase I activity phosphoric diester hydrolase activity exonuclease activity double-stranded DNA 3'-5' DNA exonuclease activity DNA exonuclease activity 3'-5' exonuclease activity double-stranded DNA exodeoxyribonuclease activity DNA exonuclease activity, producing 5'-phosphomonoesters exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters 3'-5'-DNA exonuclease activity DNA binding binding nucleic acid binding damaged DNA binding DNA-(abasic site) binding cation binding ion binding metal ion binding small molecule binding oxidoreductase activity uracil DNA N-glycosylase activity hydrolase activity, acting on glycosyl bonds deaminated base DNA N-glycosylase activity DNA N-glycosylase activity hydrolase activity, hydrolyzing N-glycosyl compounds transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity RNA binding sequence-specific DNA binding double-stranded telomeric DNA binding double-stranded DNA binding telomeric DNA binding transcription corepressor activity phosphodiesterase activity, acting on 3'-phosphoglycolate-terminated DNA strands chromatin binding chromatin DNA binding RNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on RNA RNA-DNA hybrid ribonuclease activity RNA nuclease activity RNA endonuclease activity	catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process cellular response to stimulus telomere maintenance in response to DNA damage catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process cellular response to stimulus telomere maintenance in response to DNA damage response to stimulus telomere organization chromosome organization telomere maintenance cellular component organization organelle organization base-excision repair cellular response to stress DNA damage response response to stress cellular component organization or biogenesis telomere maintenance via base-excision repair DNA repair regulation of biological process regulation of cellular process regulation of apoptotic process biological regulation apoptotic process regulation of programmed cell death cell death programmed cell death positive regulation of biological process RNA metabolic process positive regulation of gene expression via chromosomal CpG island demethylation positive regulation of macromolecule biosynthetic process positive regulation of gene expression, epigenetic RNA biosynthetic process positive regulation of metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II positive regulation of biosynthetic process chromatin organization chromatin remodeling positive regulation of macromolecule metabolic process positive regulation of cellular process transcription initiation at RNA polymerase II promoter regulation of biosynthetic process epigenetic regulation of gene expression regulation of macromolecule metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process DNA-templated transcription initiation regulation of gene expression biosynthetic process positive regulation of gene expression transcription initiation-coupled chromatin remodeling regulation of macromolecule biosynthetic process regulation of metabolic process cell redox homeostasis cellular homeostasis homeostatic process positive regulation of DNA-templated transcription regulation of primary metabolic process regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription negative regulation of biological process post-transcriptional regulation of gene expression regulation of mRNA catabolic process negative regulation of cellular process regulation of biological quality RNA catabolic process negative regulation of macromolecule metabolic process mRNA catabolic process negative regulation of metabolic process regulation of catabolic process mRNA metabolic process regulation of mRNA stability negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of RNA stability regulation of mRNA metabolic process DNA recombination base-excision repair, gap-filling	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen cytoplasm perinuclear region of cytoplasm membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region mitochondrion nucleolus centrosome microtubule organizing center cytoskeleton microtubule cytoskeleton ribosome endoplasmic reticulum endomembrane system

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017937	Thioredoxin, conserved site	Conserved Site
A	IPR013766	Thioredoxin domain	Domain
A	IPR005746	Thioredoxin	Family
A	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
B	IPR036691	Endonuclease/exonuclease/phosphatase superfamily	Homologous Superfamily
B	IPR005135	Endonuclease/exonuclease/phosphatase	Domain
B	IPR020847	AP endonuclease 1, binding site	Binding Site
B	IPR020848	AP endonuclease 1, conserved site	Conserved Site
B	IPR004808	AP endonuclease 1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P10599	bronchopulmonary dysplasia acute lung injury liver disease malignant mesothelioma Neoplasm Invasiveness contact dermatitis pancreatic intraductal papillary-mucinous carcinoma polycystic ovary syndrome lung carcinoma myopathy oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm amyotrophic lateral sclerosis cancer diabetes mellitus bronchopulmonary dysplasia acute lung injury liver disease malignant mesothelioma Neoplasm Invasiveness contact dermatitis pancreatic intraductal papillary-mucinous carcinoma polycystic ovary syndrome lung carcinoma myopathy oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm amyotrophic lateral sclerosis cancer diabetes mellitus ovarian cancer plasma cell myeloma astrocytic tumor Duchenne muscular dystrophy lung cancer malignant pancreatic neoplasm
B	Pharos: P27695	melanoma lung adenocarcinoma heart disease visual epilepsy prostate cancer Generalized Absence Seizures Takayasu arteritis hereditary diffuse gastric adenocarcinoma cutaneous melanoma ovarian cancer gastric cancer inherited disease susceptibility large cell medulloblastoma lung cancer medulloblastoma melanoma lung adenocarcinoma heart disease visual epilepsy prostate cancer Generalized Absence Seizures Takayasu arteritis hereditary diffuse gastric adenocarcinoma cutaneous melanoma ovarian cancer gastric cancer inherited disease susceptibility large cell medulloblastoma lung cancer medulloblastoma atypical teratoid rhabdoid tumor brain injury plasma cell myeloma gastric neoplasm glioblastoma hepatocellular carcinoma lymphoplasmacytic lymphoma astrocytic tumor oligodendroglioma

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.