Q9JK91 (MLH1_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 29, 2013.
Version 100.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: DNA mismatch repair protein Mlh1 Alternative name(s): MutL protein homolog 1 | ||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||
| Taxonomic identifier | 10090 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 760 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Heterodimerizes with Pms2 to form MutL alpha, a component of the post-replicative DNA mismatch repair system (MMR). DNA repair is initiated by MutS alpha (Msh2-Msh6) or MutS beta (Msh2-Msh6) binding to a dsDNA mismatch, then MutL alpha is recruited to the heteroduplex. Assembly of the MutL-MutS-heteroduplex ternary complex in presence of RFC and PCNA is sufficient to activate endonuclease activity of Pms2. It introduces single-strand breaks near the mismatch and thus generates new entry points for the exonuclease EXO1 to degrade the strand containing the mismatch. DNA methylation would prevent cleavage and therefore assure that only the newly mutated DNA strand is going to be corrected. MutL alpha (Mlh1-Pms2) interacts physically with the clamp loader subunits of DNA polymerase III, suggesting that it may play a role to recruit the DNA polymerase III to the site of the MMR. Also implicated in DNA damage signaling, a process which induces cell cycle arrest and can lead to apoptosis in case of major DNA damages. Heterodimerizes with Mlh3 to form MutL gamma which plays a role in meiosis By similarity. |
| Subunit structure | Heterodimer of Mlh1 and Pms2 (MutL alpha), Mlh1 and Pms1 (MutL beta) or Mlh1 and Mlh3 (MutL gamma). Forms a ternary complex with MutS alpha (Msh2-Msh6) or MutS beta (Msh2-Msh3). Part of the BRCA1-associated genome surveillance complex (BASC), which contains BRCA1, Msh2, Msh6, Mlh1, Atm, Blm, Pms2 and the RAD50-MRE11-NBS1 protein complex. This association could be a dynamic process changing throughout the cell cycle and within subnuclear domains. Interacts with MBD4. Interacts with EXO1 and MTMR15/FAN1 By similarity. |
| Subcellular location | Nucleus By similarity. |
| Sequence similarities | Belongs to the DNA mismatch repair MutL/HexB family. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 760 | 760 | DNA mismatch repair protein Mlh1 | PRO_0000178001 | |||||
Regions | |||||||||
| Region | 412 – 654 | 243 | Interaction with EXO1 By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 481 | 1 | Phosphoserine By similarity | ||||||
Experimental info | |||||||||
| Sequence conflict | 390 | 1 | E → D in AAF64514. Ref.1 | ||||||
| Sequence conflict | 404 | 1 | G → V in AAF64514. Ref.1 | ||||||
| Sequence conflict | 528 | 1 | M → I in AAF64514. Ref.1 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF250844 mRNA. Translation: AAF64514.1. AK168849 mRNA. Translation: BAE40671.1. U60872 U59884 Genomic DNA. Translation: AAC52672.1. |
| IPI | IPI00122425. |
| RefSeq | NP_081086.2. NM_026810.2. |
| UniGene | Mm.486383. |
3D structure databases | |
| ProteinModelPortal | Q9JK91. |
| SMR | Q9JK91. Positions 3-335, 492-755. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 10090.ENSMUSP00000035079. |
PTM databases | |
| PhosphoSite | Q9JK91. |
Proteomic databases | |
| PaxDb | Q9JK91. |
| PRIDE | Q9JK91. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000035079; ENSMUSP00000035079; ENSMUSG00000032498. |
| GeneID | 17350. |
| KEGG | mmu:17350. |
| UCSC | uc009rvp.2. mouse. |
Organism-specific databases | |
| CTD | 4292. |
| MGI | MGI:101938. Mlh1. |
Phylogenomic databases | |
| eggNOG | COG0323. |
| GeneTree | ENSGT00550000074923. |
| HOGENOM | HOG000176000. |
| HOVERGEN | HBG006374. |
| InParanoid | Q3TG77. |
| KO | K08734. |
| OMA | SIQVVVK. |
| OrthoDB | EOG43N7C7. |
Enzyme and pathway databases | |
| Reactome | REACT_120463. Meiosis. REACT_27235. Meiotic Recombination (mouse). |
Gene expression databases | |
| ArrayExpress | Q9JK91. |
| Bgee | Q9JK91. |
| CleanEx | MM_MLH1. |
| Genevestigator | Q9JK91. |
| GermOnline | ENSMUSG00000032498. Mus musculus. |
Family and domain databases | |
| Gene3D | 3.30.230.10. 1 hit. 3.30.565.10. 1 hit. |
| InterPro | IPR002099. DNA_mismatch_repair. IPR013507. DNA_mismatch_repair_C. IPR014762. DNA_mismatch_repair_CS. IPR011186. DNA_mismatch_repair_MLH1. IPR014763. DNA_mismatch_repair_N. IPR003594. HATPase_ATP-bd. IPR020568. Ribosomal_S5_D2-typ_fold. IPR014721. Ribosomal_S5_D2-typ_fold_subgr. [Graphical view] |
| PANTHER | PTHR10073. PTHR10073. 1 hit. PTHR10073:SF11. PTHR10073:SF11. 1 hit. |
| Pfam | PF01119. DNA_mis_repair. 1 hit. [Graphical view] |
| SMART | SM00387. HATPase_c. 1 hit. [Graphical view] |
| SUPFAM | SSF55874. ATP_bd_ATPase. 1 hit. SSF54211. Ribosomal_S5_D2-typ_fold. 1 hit. |
| TIGRFAMs | TIGR00585. mutl. 1 hit. |
| PROSITE | PS00058. DNA_MISMATCH_REPAIR_1. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | Mlh1. mouse. |
| NextBio | 291948. |
| SOURCE | Search... |
Entry information
| Entry name | MLH1_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q9JK91 Secondary accession number(s): Q3TG77, Q62454 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
