P38920 (MLH1_YEAST) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 124.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·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 Post meiotic segregation protein 2 | ||||||||
| Gene names |
| ||||||||
| Organism | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) [Reference proteome] | ||||||||
| Taxonomic identifier | 559292 [NCBI] | ||||||||
| Taxonomic lineage | Eukaryota › Fungi › Dikarya › Ascomycota › Saccharomycotina › Saccharomycetes › Saccharomycetales › Saccharomycetaceae › Saccharomyces › ![]() |
Protein attributes
| Sequence length | 769 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Required for DNA mismatch repair (MMR), correcting base-base mismatches and insertion-deletion loops (IDLs) resulting from DNA replication, DNA damage or from recombination events between non-identical sequences during meiosis. Component of different MutL heterodimers that form a ternary complex with the MutS heterodimers, which initially recognize the DNA mismatches. This complex is thought to be responsible for directing the downsteam MMR events, including strand discrimination, excision, and resynthesis. Plays a major role in maintaining the genetic stability of simple sequence repeats, the repair of heteroduplex sites present in meiotic recombination intermediates, and the promotion of meiotic crossing-over. Ref.7 Ref.8 Ref.12 |
| Subunit structure | Heterodimer of MLH1 and PMS1, called MutLalpha, which is the major MMR MutL activity correcting base-base mismatches as well as IDLs. The heterodimer binds double strand DNA independently of a mismatch with positive cooperativity and has more than one DNA binding site. Forms a ternary complex with either the MSH2-MSH6 (MutSalpha) or the MSH2-MSH3 heterodimer (MutSbeta), which recognize and bind to mismatch DNA. Ternary complex formation is promoted by ATP binding. Heterodimer of MLH1 and MLH3, called MutLbeta, which is involved in correction of a specific subset of IDLs when associated with MutSbeta. Heterodimer of MLH1 and MLH2. Ref.7 |
| Subcellular location | |
| Miscellaneous | Present with 319 molecules/cell in log phase SD medium. |
| Sequence similarities | Belongs to the DNA mismatch repair MutL/HexB family. |
| Biophysicochemical properties | Kinetic parameters: KM=69 µM for ATP Ref.11 |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| MLH2 | Q07980 | 5 | EBI-11003,EBI-33369 | |
| MLH3 | Q12083 | 4 | EBI-11003,EBI-31634 | |
| PMS1 | P14242 | 7 | EBI-11003,EBI-13561 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 769 | 769 | DNA mismatch repair protein MLH1 | PRO_0000178008 | |||||
Regions | |||||||||
| Region | 1 – 335 | 335 | DNA- and ATP-binding | ||||||
| Region | 501 – 756 | 256 | Interaction with PMS1 | ||||||
Amino acid modifications | |||||||||
| Modified residue | 439 | 1 | Phosphoserine Ref.17 | ||||||
| Modified residue | 441 | 1 | Phosphoserine; by ATM or ATR Ref.16 Ref.17 | ||||||
Natural variations | |||||||||
| Natural variant | 240 | 1 | S → R in strain: SK1. Ref.2 | ||||||
| Natural variant | 242 | 1 | D → E in strain: YJM326 and YJM339. Ref.2 | ||||||
| Natural variant | 271 | 1 | L → P in strain: EAY1066, EAY1068, M2-8, M7-8, M5-7, SK1, YJM269, YJM280, YJM320, YJM326, YJM339 and YJM627. Ref.2 | ||||||
| Natural variant | 309 | 1 | P → L in strain: M2-8. Ref.2 | ||||||
| Natural variant | 321 | 1 | E → D in strain: EAY1066. Ref.2 | ||||||
| Natural variant | 333 | 1 | E → K in strain: SK1. Ref.2 | ||||||
| Natural variant | 375 | 1 | A → T in strain: YJM339. Ref.2 | ||||||
| Natural variant | 452 | 1 | S → G in strain: EAY1068, M2-8, M7-8, M5-7, YJM269 and YJM627. Ref.2 | ||||||
| Natural variant | 465 | 1 | D → N in strain: EAY1066 and YJM280. Ref.2 | ||||||
| Natural variant | 470 | 1 | P → S in strain: YJM339. Ref.2 | ||||||
| Natural variant | 607 | 1 | L → F in strain: EAY1068, M2-8, M7-8, M5-7 and YJM627. Ref.2 | ||||||
| Natural variant | 678 | 1 | D → N in strain: SK1, YJM320 and YJM339. Ref.2 | ||||||
| Natural variant | 703 | 1 | P → L in strain: SK1, YJM320 and YJM339. Ref.2 | ||||||
| Natural variant | 761 | 1 | D → G in strain: EAY1066, EAY1068, M2-8, M7-8, M5-7, SK1, YJM145, YJM269, YJM320, YJM339 and YJM627; forms a non-functional heterodimer with PMS1 from strain S288c, resulting in an accumulation of mutations in spore progeny of crosses between these strains. Ref.2 | ||||||
Experimental info | |||||||||
| Mutagenesis | 31 | 1 | E → A: Reduces ATPase activity by 98%. Displays 3300-fold increase in spontaneous mutation accumulation. Ref.9 Ref.11 | ||||||
| Mutagenesis | 35 | 1 | N → A: Abolishes ATP binding, reducing ATPase activity by 95%. Displays 9800-fold increase in spontaneous mutation accumulation. Ref.11 | ||||||
| Mutagenesis | 41 | 1 | A → F: Defective in a mismatch repair assay. Abolishes heterodimer formation. Displays an increases spontaneous mutation accumulation. Ref.5 Ref.6 | ||||||
| Mutagenesis | 41 | 1 | A → G: Reduces heterodimer formation. Displays an weak increase in spontaneous mutation accumulation. Ref.5 Ref.6 | ||||||
| Mutagenesis | 41 | 1 | A → S: Fully functional in a mismatch repair assay. Ref.5 Ref.6 | ||||||
| Mutagenesis | 64 | 1 | G → R: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 65 | 1 | I → N: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 96 | 1 | F → A: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Mutagenesis | 97 | 1 | R → A: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Mutagenesis | 98 | 1 | G → A: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 Ref.9 | ||||||
| Mutagenesis | 98 | 1 | G → V: Abolishes heterodimer formation. Displays an increase in spontaneous mutation accumulation. Ref.6 Ref.9 | ||||||
| Mutagenesis | 99 | 1 | E → K: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 104 | 1 | I → R: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 114 | 1 | T → R: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 214 | 1 | R → C: Partially defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 216 | 1 | V → I: Fully functional in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 265 | 1 | R → C: Partially defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 265 | 1 | R → H: Partially defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 273 | 1 | R → E: Strongly reduces DNA-binding and displays 12000-fold increase in spontaneous mutation accumulation; when associated with E-274. Ref.15 | ||||||
| Mutagenesis | 274 | 1 | R → E: Reduces DNA-binding and displays a 1700-fold increase in spontaneous mutation accumulation. Strongly reduces DNA-binding and displays 12000-fold increase in spontaneous mutation accumulation; when associated with E-273. Ref.15 | ||||||
| Mutagenesis | 326 | 1 | I → A: Partially defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 326 | 1 | I → V: Fully functional in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 552 | 1 | Q → L: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 672 | 1 | R → P: Defective in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 694 | 1 | A → T: Fully functional in a mismatch repair assay. Ref.5 | ||||||
| Mutagenesis | 764 | 1 | K → E: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Mutagenesis | 764 | 1 | K → R: No effect. Ref.6 | ||||||
| Mutagenesis | 766 | 1 | F → A: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Mutagenesis | 767 | 1 | E → D: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Mutagenesis | 769 | 1 | C → A: No effect. Ref.6 | ||||||
| Mutagenesis | 769 | 1 | C → S: Displays an increase in spontaneous mutation accumulation. Does not impair heterodimer formation. Ref.6 | ||||||
| Sequence conflict | 258 | 1 | P → L in AAA16835. Ref.1 | ||||||
| Sequence conflict | 288 | 1 | N → F in AAA16835. Ref.1 | ||||||
| Sequence conflict | 708 | 1 | S → L in AAA16835. Ref.1 | ||||||
Sequences
| ||||||||||||||||||
References
| « Hide 'large scale' references | |
| [1] | "Dual requirement in yeast DNA mismatch repair for MLH1 and PMS1, two homologs of the bacterial mutL gene." Prolla T.A., Christie D.-M., Liskay R.M. Mol. Cell. Biol. 14:407-415(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. |
| [2] | "Negative epistasis between natural variants of the Saccharomyces cerevisiae MLH1 and PMS1 genes results in a defect in mismatch repair." Heck J.A., Argueso J.L., Gemici Z., Reeves R.G., Bernard A., Aquadro C.F., Alani E. Proc. Natl. Acad. Sci. U.S.A. 103:3256-3261(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], VARIANTS ARG-240; GLU-242; PRO-271; LEU-309; ASP-321; LYS-333; THR-375; GLY-452; ASN-465; SER-470; PHE-607; ASN-678; LEU-703 AND GLY-761. Strain: ATCC 200060 / W303, EAY1066, EAY1068, M2-8, M5-7, M7-8, SK1, YJM 145, YJM 269, YJM 280, YJM 320, YJM 326, YJM 339 and YJM 627. |
| [3] | "The nucleotide sequence of Saccharomyces cerevisiae chromosome XIII." Bowman S., Churcher C.M., Badcock K., Brown D., Chillingworth T., Connor R., Dedman K., Devlin K., Gentles S., Hamlin N., Hunt S., Jagels K., Lye G., Moule S., Odell C., Pearson D., Rajandream M.A., Rice P. Barrell B.G.Nature 387:90-93(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 204511 / S288c / AB972. |
| [4] | Saccharomyces Genome Database Submitted (DEC-2009) to the EMBL/GenBank/DDBJ databases Cited for: GENOME REANNOTATION. Strain: ATCC 204508 / S288c. |
| [5] | "Functional analysis of human MLH1 and MSH2 missense variants and hybrid human-yeast MLH1 proteins in Saccharomyces cerevisiae." Ellison A.R., Lofing J., Bitter G.A. Hum. Mol. Genet. 10:1889-1900(2001) [PubMed] [Europe PMC] [Abstract] Cited for: MUTAGENESIS OF ALA-41; GLY-64; ILE-65; GLU-99; ILE-104; THR-114; ARG-214; VAL-216; ARG-265; ILE-326; GLN-552; ARG-672 AND ALA-694. |
| [6] | "Functional domains of the Saccharomyces cerevisiae Mlh1p and Pms1p DNA mismatch repair proteins and their relevance to human hereditary nonpolyposis colorectal cancer-associated mutations." Pang Q., Prolla T.A., Liskay R.M. Mol. Cell. Biol. 17:4465-4473(1997) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PMS1, MUTAGENESIS OF ALA-41; PHE-96; ARG-97; GLY-98; LYS-764; PHE-766; GLU-767 AND CYS-769. |
| [7] | "ATP-dependent assembly of a ternary complex consisting of a DNA mismatch and the yeast MSH2-MSH6 and MLH1-PMS1 protein complexes." Habraken Y., Sung P., Prakash L., Prakash S. J. Biol. Chem. 273:9837-9841(1998) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBUNIT. |
| [8] | "Functional specificity of MutL homologs in yeast: evidence for three Mlh1-based heterocomplexes with distinct roles during meiosis in recombination and mismatch correction." Wang T.-F., Kleckner N., Hunter N. Proc. Natl. Acad. Sci. U.S.A. 96:13914-13919(1999) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH MLH2; MLH3 AND PMS1. |
| [9] | "Functional studies on the candidate ATPase domains of Saccharomyces cerevisiae MutLalpha." Tran P.T., Liskay R.M. Mol. Cell. Biol. 20:6390-6398(2000) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PMS1, ATP-BINDING, MUTAGENESIS OF GLU-31 AND GLY-98. |
| [10] | "DNA binding properties of the yeast Msh2-Msh6 and Mlh1-Pms1 heterodimers." Drotschmann K., Hall M.C., Shcherbakova P.V., Wang H., Erie D.A., Brownewell F.R., Kool E.T., Kunkel T.A. Biol. Chem. 383:969-975(2002) [PubMed] [Europe PMC] [Abstract] Cited for: DNA-BINDING. |
| [11] | "Differential ATP binding and intrinsic ATP hydrolysis by amino-terminal domains of the yeast Mlh1 and Pms1 proteins." Hall M.C., Shcherbakova P.V., Kunkel T.A. J. Biol. Chem. 277:3673-3679(2002) [PubMed] [Europe PMC] [Abstract] Cited for: ATP-BINDING, MUTAGENESIS OF GLU-31 AND ASN-35, BIOPHYSICOCHEMICAL PROPERTIES. |
| [12] | "Systematic mutagenesis of the Saccharomyces cerevisiae MLH1 gene reveals distinct roles for Mlh1p in meiotic crossing over and in vegetative and meiotic mismatch repair." Argueso J.L., Kijas A.W., Sarin S., Heck J.A., Waase M., Alani E. Mol. Cell. Biol. 23:873-886(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, MUTAGENESIS. |
| [13] | "Global analysis of protein localization in budding yeast." Huh W.-K., Falvo J.V., Gerke L.C., Carroll A.S., Howson R.W., Weissman J.S., O'Shea E.K. Nature 425:686-691(2003) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION [LARGE SCALE ANALYSIS]. |
| [14] | "Global analysis of protein expression in yeast." Ghaemmaghami S., Huh W.-K., Bower K., Howson R.W., Belle A., Dephoure N., O'Shea E.K., Weissman J.S. Nature 425:737-741(2003) [PubMed] [Europe PMC] [Abstract] Cited for: LEVEL OF PROTEIN EXPRESSION [LARGE SCALE ANALYSIS]. |
| [15] | "DNA binding by yeast Mlh1 and Pms1: implications for DNA mismatch repair." Hall M.C., Shcherbakova P.V., Fortune J.M., Borchers C.H., Dial J.M., Tomer K.B., Kunkel T.A. Nucleic Acids Res. 31:2025-2034(2003) [PubMed] [Europe PMC] [Abstract] Cited for: DNA-BINDING, MUTAGENESIS OF ARG-273 AND ARG-274. |
| [16] | "Proteome-wide identification of in vivo targets of DNA damage checkpoint kinases." Smolka M.B., Albuquerque C.P., Chen S.H., Zhou H. Proc. Natl. Acad. Sci. U.S.A. 104:10364-10369(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-441, MASS SPECTROMETRY. |
| [17] | "A multidimensional chromatography technology for in-depth phosphoproteome analysis." Albuquerque C.P., Smolka M.B., Payne S.H., Bafna V., Eng J., Zhou H. Mol. Cell. Proteomics 7:1389-1396(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-439 AND SER-441, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | U07187 Unassigned DNA. Translation: AAA16835.1. DQ356633 Genomic DNA. Translation: ABC86937.1. DQ356634 Genomic DNA. Translation: ABC86938.1. DQ356635 Genomic DNA. Translation: ABC86939.1. DQ356636 Genomic DNA. Translation: ABC86940.1. DQ356637 Genomic DNA. Translation: ABC86941.1. DQ356638 Genomic DNA. Translation: ABC86942.1. DQ356639 Genomic DNA. Translation: ABC86943.1. DQ356640 Genomic DNA. Translation: ABC86944.1. DQ356641 Genomic DNA. Translation: ABC86945.1. DQ356642 Genomic DNA. Translation: ABC86946.1. DQ356643 Genomic DNA. Translation: ABC86947.1. DQ356644 Genomic DNA. Translation: ABC86948.1. DQ356645 Genomic DNA. Translation: ABC86949.1. DQ356646 Genomic DNA. Translation: ABC86950.1. Z49705 Genomic DNA. Translation: CAA89803.1. BK006946 Genomic DNA. Translation: DAA10063.1. | ||||||||||||||||||||||||
| PIR | S54525. | ||||||||||||||||||||||||
| RefSeq | NP_013890.1. NM_001182671.1. | ||||||||||||||||||||||||
3D structure databases | |||||||||||||||||||||||||
| PDBe RCSB PDB PDBj |
| ||||||||||||||||||||||||
| ProteinModelPortal | P38920. | ||||||||||||||||||||||||
| SMR | P38920. Positions 5-298. | ||||||||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||||||||
| DIP | DIP-2412N. | ||||||||||||||||||||||||
| IntAct | P38920. 10 interactions. | ||||||||||||||||||||||||
| MINT | MINT-625234. | ||||||||||||||||||||||||
Protocols and materials databases | |||||||||||||||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||||||||||||||
Genome annotation databases | |||||||||||||||||||||||||
| EnsemblFungi | YMR167W; YMR167W; YMR167W. | ||||||||||||||||||||||||
| GeneID | 855203. | ||||||||||||||||||||||||
| KEGG | sce:YMR167W. | ||||||||||||||||||||||||
Organism-specific databases | |||||||||||||||||||||||||
| CYGD | YMR167w. | ||||||||||||||||||||||||
| SGD | S000004777. MLH1. | ||||||||||||||||||||||||
Phylogenomic databases | |||||||||||||||||||||||||
| GeneTree | ENSGT00550000074923. | ||||||||||||||||||||||||
| KO | K08734. | ||||||||||||||||||||||||
| OMA | SIQVVVK. | ||||||||||||||||||||||||
| OrthoDB | EOG43XZBN. | ||||||||||||||||||||||||
Gene expression databases | |||||||||||||||||||||||||
| Genevestigator | P38920. | ||||||||||||||||||||||||
| GermOnline | YMR167W. Saccharomyces cerevisiae. | ||||||||||||||||||||||||
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 | |||||||||||||||||||||||||
| NextBio | 978693. | ||||||||||||||||||||||||
Entry information
| Entry name | MLH1_YEAST | ||||||||
| Accession | Primary (citable) accession number: P38920 Secondary accession number(s): D6VZY9 Q2I041 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Fungal Protein Annotation Program | ||||||||
Relevant documents
| Yeast Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD |
| Yeast chromosome XIII Yeast (Saccharomyces cerevisiae) chromosome XIII: entries and gene names |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
