Annotations: 6SNS

DNA mismatch repair proteins MLH1 and MLH3

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	DNA mismatch repair protein MutL	8053829	3001605	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)
B	Tra1_central	e6snsB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Tra1_central	ECOD (v295.2)
A	WD40	e6snsA1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: WD40	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
B	DNA mismatch repair protein MLH3	binding 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 binding 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 DNA binding double-stranded DNA binding mismatched DNA binding nucleic acid 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 catalytic activity ATP-dependent activity ATP-dependent activity, acting on DNA DNA damage sensor activity molecular sensor activity catalytic activity, acting on DNA ATP-dependent DNA damage sensor activity catalytic activity, acting on a nucleic acid molecular function regulator activity	cellular response to stimulus mismatch repair sexual reproduction response to stimulus reproductive process meiotic cell cycle primary metabolic process DNA metabolic process meiotic cell cycle process nucleic acid metabolic process meiotic mismatch repair nucleobase-containing compound metabolic process meiosis I cell cycle process cellular response to stress DNA damage response cellular response to stimulus mismatch repair sexual reproduction response to stimulus reproductive process meiotic cell cycle primary metabolic process DNA metabolic process meiotic cell cycle process nucleic acid metabolic process meiotic mismatch repair nucleobase-containing compound metabolic process meiosis I cell cycle process cellular response to stress DNA damage response response to stress cellular process metabolic process cell cycle macromolecule metabolic process cell cycle process DNA repair homologous recombination cellular component organization meiosis I meiotic nuclear division cellular component organization or biogenesis reciprocal homologous recombination DNA recombination organelle fission reciprocal meiotic recombination nuclear division organelle organization	protein-containing complex intracellular anatomical structure cellular anatomical structure MutLgamma complex mismatch repair complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle
A	DNA mismatch repair protein MLH1	binding 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 binding 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 DNA binding double-stranded DNA binding mismatched DNA binding nucleic acid 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 catalytic activity ATP-dependent activity ATP-dependent activity, acting on DNA DNA damage sensor activity molecular sensor activity catalytic activity, acting on DNA ATP-dependent DNA damage sensor activity catalytic activity, acting on a nucleic acid molecular function regulator activity	sexual reproduction reproductive process meiotic cell cycle DNA recombination primary metabolic process DNA metabolic process meiotic cell cycle process nucleic acid metabolic process nucleobase-containing compound metabolic process meiosis I cell cycle process meiotic heteroduplex formation cellular process metabolic process cell cycle sexual reproduction reproductive process meiotic cell cycle DNA recombination primary metabolic process DNA metabolic process meiotic cell cycle process nucleic acid metabolic process nucleobase-containing compound metabolic process meiosis I cell cycle process meiotic heteroduplex formation cellular process metabolic process cell cycle macromolecule metabolic process cell cycle process cellular response to stimulus mismatch repair response to stimulus meiotic mismatch repair cellular response to stress DNA damage response response to stress DNA repair homologous recombination cellular component organization meiosis I meiotic nuclear division cellular component organization or biogenesis reciprocal homologous recombination organelle fission reciprocal meiotic recombination nuclear division organelle organization	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle protein-containing complex nucleus nuclear protein-containing complex MutLalpha complex mismatch repair complex MutLgamma complex membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle protein-containing complex nucleus nuclear protein-containing complex MutLalpha complex mismatch repair complex MutLgamma complex MutLbeta complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR038973	DNA mismatch repair protein MutL/Mlh/Pms-like	Family
B	IPR037198	MutL, C-terminal domain superfamily	Homologous Superfamily
B	IPR013507	DNA mismatch repair protein, S5 domain 2-like	Domain
B	IPR014790	MutL, C-terminal, dimerisation	Domain
B	IPR002099	DNA mismatch repair protein MutL/Mlh/PMS	Family
B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
B	IPR042120	MutL, C-terminal domain, dimerisation subdomain	Homologous Superfamily
B	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
B	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily
A	IPR038973	DNA mismatch repair protein MutL/Mlh/Pms-like	Family
A	IPR013507	DNA mismatch repair protein, S5 domain 2-like	Domain
A	IPR002099	DNA mismatch repair protein MutL/Mlh/PMS	Family
A	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A	IPR014762	DNA mismatch repair, conserved site	Conserved Site
A	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A	IPR032189	DNA mismatch repair protein Mlh1, C-terminal	Domain
A	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily

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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.