Annotations: 3RBN

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	DNA mismatch repair protein MutL	8053828	3001605	SCOP2B (2022-06-29)
A	SCOP2 Family	DNA mismatch repair protein Mlh1 C-terminal domain	8045537	4004523	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DNA mismatch repair protein MutL	8053828	3001605	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PF16413	e3rbnB1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: DNA mismatch repair protein MutL regulatory subdomain (From Topology)	T: DNA mismatch repair protein MutL regulatory subdomain	F: PF16413	ECOD (1.6)
B	PF16413	e3rbnB2	A: a+b two layers	X: DNA mismatch repair protein MutL dimerization subdomain (From Topology)	H: DNA mismatch repair protein MutL dimerization subdomain (From Topology)	T: DNA mismatch repair protein MutL dimerization subdomain	F: PF16413	ECOD (1.6)
A	PF16413	e3rbnA1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: DNA mismatch repair protein MutL regulatory subdomain (From Topology)	T: DNA mismatch repair protein MutL regulatory subdomain	F: PF16413	ECOD (1.6)
A	PF16413	e3rbnA2	A: a+b two layers	X: DNA mismatch repair protein MutL dimerization subdomain (From Topology)	H: DNA mismatch repair protein MutL dimerization subdomain (From Topology)	T: DNA mismatch repair protein MutL dimerization subdomain	F: PF16413	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF16413	DNA mismatch repair protein Mlh1 C-terminus (Mlh1_C)	DNA mismatch repair protein Mlh1 C-terminus	This is the C-terminal domain of DNA mismatch repair protein Mlh1, these proteins belong to the MutL family. This domain forms part of the endonuclease active site [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	DNA mismatch repair protein Mlh1	DNA binding guanine/thymine mispair binding double-stranded DNA binding binding organic cyclic compound binding mismatched DNA binding nucleic acid binding protein-containing complex binding chromatin binding ATP-dependent activity, acting on DNA DNA damage sensor activity catalytic activity, acting on DNA small molecule sensor activity ATP-dependent DNA damage sensor activity DNA binding guanine/thymine mispair binding double-stranded DNA binding binding organic cyclic compound binding mismatched DNA binding nucleic acid binding protein-containing complex binding chromatin binding ATP-dependent activity, acting on DNA DNA damage sensor activity catalytic activity, acting on DNA small molecule sensor activity ATP-dependent DNA damage sensor activity catalytic activity, acting on a nucleic acid catalytic activity ATP-dependent activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides protein binding enzyme binding	adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains response to stimulus regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response positive regulation of macromolecule biosynthetic process regulation of primary metabolic process multicellular organism development positive regulation of immune response organic substance biosynthetic process regulation of immune system process positive regulation of macromolecule metabolic process system development positive regulation of DNA recombination adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains response to stimulus regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response positive regulation of macromolecule biosynthetic process regulation of primary metabolic process multicellular organism development positive regulation of immune response organic substance biosynthetic process regulation of immune system process positive regulation of macromolecule metabolic process system development positive regulation of DNA recombination positive regulation of immunoglobulin mediated immune response immune response cellular metabolic process DNA recombination primary metabolic process DNA metabolic process immune effector process regulation of gene expression biosynthetic process positive regulation of DNA metabolic process regulation of response to stimulus B cell mediated immunity positive regulation of production of molecular mediator of immune response regulation of macromolecule biosynthetic process metabolic process regulation of DNA metabolic process immunoglobulin production regulation of developmental process positive regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains somatic cell DNA recombination positive regulation of cellular metabolic process somatic diversification of immunoglobulins involved in immune response positive regulation of lymphocyte activation somatic recombination of immunoglobulin gene segments positive regulation of biosynthetic process regulation of immunoglobulin mediated immune response leukocyte activation involved in immune response regulation of B cell activation positive regulation of isotype switching positive regulation of immune effector process positive regulation of cellular process production of molecular mediator of immune response positive regulation of immunoglobulin production regulation of isotype switching cell activation regulation of macromolecule metabolic process macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of gene expression immune system process somatic diversification of immune receptors via germline recombination within a single locus cellular process positive regulation of cellular biosynthetic process regulation of lymphocyte activation lymphocyte mediated immunity regulation of immune effector process multicellular organismal process regulation of DNA recombination positive regulation of leukocyte mediated immunity regulation of cellular process cell activation involved in immune response nucleobase-containing compound metabolic process positive regulation of developmental process positive regulation of cell activation positive regulation of metabolic process anatomical structure development positive regulation of leukocyte activation leukocyte mediated immunity somatic diversification of immune receptors regulation of nucleobase-containing compound metabolic process positive regulation of adaptive immune response positive regulation of immune system process somatic recombination of immunoglobulin genes involved in immune response developmental process regulation of biological process positive regulation of nucleobase-containing compound metabolic process regulation of adaptive immune response regulation of cellular metabolic process regulation of B cell mediated immunity somatic diversification of immunoglobulins organic cyclic compound metabolic process regulation of leukocyte mediated immunity regulation of immune response positive regulation of multicellular organismal process regulation of production of molecular mediator of immune response macromolecule metabolic process regulation of metabolic process isotype switching immune system development immunoglobulin production involved in immunoglobulin-mediated immune response positive regulation of lymphocyte mediated immunity cellular biosynthetic process positive regulation of biological process lymphocyte activation positive regulation of B cell mediated immunity leukocyte activation positive regulation of response to stimulus regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains organic substance metabolic process positive regulation of isotype switching to IgG isotypes regulation of multicellular organismal process lymphocyte activation involved in immune response regulation of biosynthetic process B cell activation biological regulation gene expression adaptive immune response immunoglobulin mediated immune response positive regulation of B cell activation regulation of isotype switching to IgG isotypes regulation of lymphocyte mediated immunity regulation of immunoglobulin production isotype switching to IgG isotypes meiotic chromosome segregation sexual reproduction reproductive process organelle fission meiotic cell cycle multicellular organismal reproductive process female gamete generation meiotic cell cycle process gamete generation cellular component organization nuclear division organelle organization female meiotic nuclear division nuclear chromosome segregation meiotic nuclear division cellular component organization or biogenesis cell cycle female meiosis chromosome segregation chromosome segregation cell cycle process spermatogenesis developmental process involved in reproduction male gamete generation establishment of organelle localization cellular localization localization telomere localization meiosis I chromosome localization organelle localization establishment of localization in cell meiotic telomere clustering chromosome organization establishment of localization chromosome organization involved in meiotic cell cycle chromosome localization to nuclear envelope involved in homologous chromosome segregation meiosis I cell cycle process homologous chromosome segregation establishment of chromosome localization cellular developmental process oogenesis cell development cellular process involved in reproduction in multicellular organism cell differentiation germ cell development metaphase chromosome alignment meiotic metaphase I homologous chromosome alignment meiotic metaphase chromosome alignment cellular response to stimulus mismatch repair cellular response to stress DNA damage response response to stress DNA repair homologous recombination resolution of meiotic recombination intermediates reciprocal homologous recombination reciprocal meiotic recombination negative regulation of biological process negative regulation of cellular metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process negative regulation of metabolic process positive regulation of mRNA metabolic process negative regulation of cellular biosynthetic process nucleobase-containing compound catabolic process nuclear-transcribed mRNA poly(A) tail shortening positive regulation of RNA metabolic process negative regulation of gene expression negative regulation of macromolecule biosynthetic process nucleic acid catabolic process nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay catabolic process RNA metabolic process macromolecule catabolic process mRNA destabilization regulation of mRNA catabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process nuclear-transcribed mRNA catabolic process RNA destabilization regulation of catabolic process mRNA metabolic process organic cyclic compound catabolic process positive regulation of catabolic process regulation of mRNA stability negative regulation of biosynthetic process positive regulation of mRNA catabolic process regulation of RNA stability regulation of mRNA metabolic process organic substance catabolic process regulation of mitotic recombination negative regulation of nucleobase-containing compound metabolic process negative regulation of mitotic recombination mitotic recombination negative regulation of DNA recombination negative regulation of DNA metabolic process homologous chromosome pairing at meiosis somatic diversification of immune receptors via somatic mutation somatic hypermutation of immunoglobulin genes signaling cell death intracellular signal transduction cell communication apoptotic signaling pathway intrinsic apoptotic signaling pathway in response to DNA damage signal transduction apoptotic process intrinsic apoptotic signaling pathway programmed cell death biological process involved in interspecies interaction between organisms response to other organism response to bacterium response to external stimulus response to external biotic stimulus response to biotic stimulus male meiotic nuclear division male meiosis chromosome segregation positive regulation of isotype switching to IgA isotypes isotype switching to IgA isotypes regulation of isotype switching to IgA isotypes double-strand break repair double-strand break repair via nonhomologous end joining meiotic spindle midzone assembly spindle midzone assembly non-membrane-bounded organelle assembly microtubule cytoskeleton organization cellular component biogenesis cellular component assembly spindle organization organelle assembly spindle assembly microtubule-based process cytoskeleton organization	membrane cellular anatomical entity membrane-bounded organelle condensed nuclear chromosome intracellular anatomical structure nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular membrane-bounded organelle chiasma intracellular organelle lumen intracellular organelle organelle lumen membrane cellular anatomical entity membrane-bounded organelle condensed nuclear chromosome intracellular anatomical structure nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular membrane-bounded organelle chiasma intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle condensed chromosome non-membrane-bounded organelle nuclear lumen recombination nodule late recombination nodule nucleoplasm protein-containing complex nuclear protein-containing complex MutLalpha complex mismatch repair complex synaptonemal structure synaptonemal complex male germ cell nucleus germ cell nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A, B	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A, B	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily
A, B	IPR038973	DNA mismatch repair protein MutL/Mlh/Pms-like	Family
A, B	IPR013507	DNA mismatch repair protein, S5 domain 2-like	Domain
A, B	IPR002099	DNA mismatch repair protein MutL/Mlh/PMS	Family
A, B	IPR014762	DNA mismatch repair, conserved site	Conserved Site
A, B	IPR032189	DNA mismatch repair protein Mlh1, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P40692	Lynch syndrome Muir-Torre syndrome ovarian cancer colorectal cancer lymphoma mismatch repair cancer syndrome mismatch repair cancer syndrome 1 colorectal cancer, hereditary nonpolyposis, type 2 Neoplasm Metastasis prostate cancer malignant colon neoplasm cancer adenoma colorectal adenocarcinoma colorectal carcinoma Lynch syndrome Muir-Torre syndrome ovarian cancer colorectal cancer lymphoma mismatch repair cancer syndrome mismatch repair cancer syndrome 1 colorectal cancer, hereditary nonpolyposis, type 2 Neoplasm Metastasis prostate cancer malignant colon neoplasm cancer adenoma colorectal adenocarcinoma colorectal carcinoma endometrial cancer uterine disease endometrium carcinoma in situ hematopoietic and lymphoid system neoplasm intellectual disability benign colon neoplasm colon carcinoma ovarian carcinoma endometrial carcinoma gastric adenocarcinoma hereditary breast carcinoma lung adenocarcinoma Lynch syndrome 1 colonic neoplasm neurofibromatosis type 1 digestive system disease ovarian neoplasm psoriasis endometriosis

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 R01GM133198.