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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative

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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

X: Four-helical up-and-down bundle
H: DNA repair protein MutS, domain III
T: DNA repair protein MutS, domain III
F: MutS_III

PF05192

Representatives:

e1wb9A1[A:270-566] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.1Å

e1ewqA1[A:267-541] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.2Å

e7vufB2[B:2-273] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endonuclease MutS2 ; ligands: PEG ; X-RAY DIFFRACTION 1.980Å

e7vufA2[A:1-273] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endonuclease MutS2 ; ligands: PEG ; X-RAY DIFFRACTION 1.980Å

e7vufC2[C:1-273] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endonuclease MutS2 ; X-RAY DIFFRACTION 1.980Å

e7vufD2[D:2-273] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endonuclease MutS2 ; X-RAY DIFFRACTION 1.980Å

e7vukB2[B:1-273] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endonuclease MutS2 ; ligands: CL,NA,PEG ; X-RAY DIFFRACTION 3.380Å

e1nneB1[B:1267-1541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA Mismatch Repair protein MutS ; X-RAY DIFFRACTION 3.1Å

e1fw6B1[B:1267-1541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.7Å

e1ewqB1[B:1267-1541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; ligands: EDO ; X-RAY DIFFRACTION 2.2Å

e1nneA1[A:267-541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA Mismatch Repair protein MutS ; X-RAY DIFFRACTION 3.1Å

e1fw6A1[A:267-541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.7Å

e1ng9A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 2.6Å

e1oh5B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.900Å

e1oh7B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.500Å

e1w7aA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.27Å

e1wbbA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.5Å

e1w7aB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.27Å

e1wbdA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.4Å

e1oh5A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.900Å

e1e3mA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.200Å

e1oh7A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.500Å

e1e3mB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.200Å

e1oh8B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.900Å

e1oh8A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.900Å

e1oh6A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.400Å

e1oh6B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.400Å

e2wtuA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 3.40Å

e2o8bA2[A:303-615] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH2 ; X-RAY DIFFRACTION 2.75Å

e1wb9B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.1Å

e1wbbB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.5Å

e1wbdB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 2.4Å

e2o8fA1[A:303-615] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH2 ; X-RAY DIFFRACTION 3.25Å

e3k0sB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein mutS ; X-RAY DIFFRACTION 2.20Å

e3k0sA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein mutS ; X-RAY DIFFRACTION 2.20Å

e3thwA1[A:286-590] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh2 ; X-RAY DIFFRACTION 3.09Å

e3thwB3[B:529-836] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh3 ; X-RAY DIFFRACTION 3.09Å

e2wtuB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; ligands: CL ; X-RAY DIFFRACTION 3.40Å

e3zljB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 3.10Å

e1ewrB6[B:1269-1391,B:1498-1540] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 3.2Å

e1ewrA6[A:269-352,A:518-536] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 3.2Å

e1ng9B6[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 2.6Å

e2o8dA6[A:303-616] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH2 ; X-RAY DIFFRACTION 3.0Å

e2o8cA6[A:303-616] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH2 ; X-RAY DIFFRACTION 3.37Å

e2o8eA6[A:303-616] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh2 ; X-RAY DIFFRACTION 3.300Å

e3thxB4[B:512-819] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh3 ; X-RAY DIFFRACTION 2.7Å

e3thyB4[B:512-819] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh3 ; X-RAY DIFFRACTION 2.894Å

e3zljA3[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 3.10Å

e3thzB8[B:529-836] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh3 ; X-RAY DIFFRACTION 4.3Å

e5akbE3[E:275-441,E:517-564] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 4.71Å

e5akbA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 4.71Å

e5akbB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 4.71Å

e5akcA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akcB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akcE1[E:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akcF1[F:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akcI1[I:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akcJ1[J:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 6.60Å

e5akdA1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e5akdB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e5akdE1[E:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e5akdF1[F:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e5akdI1[I:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e5akdJ1[J:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MUTS ; X-RAY DIFFRACTION 7.60Å

e3thzA2[A:322-615] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh2 ; X-RAY DIFFRACTION 4.3Å

e3thxA2[A:322-614] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh2 ; X-RAY DIFFRACTION 2.7Å

e3thyA2[A:322-615] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh2 ; X-RAY DIFFRACTION 2.894Å

e2o8cB2[B:741-840,B:866-1084] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH6 ; X-RAY DIFFRACTION 3.37Å

e2o8dB3[B:741-840,B:866-1084] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH6 ; X-RAY DIFFRACTION 3.0Å

e2o8fB1[B:741-840,B:866-1084] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA MISMATCH REPAIR PROTEIN MSH6 ; X-RAY DIFFRACTION 3.25Å

e5x9wA2[A:266-560] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 3.3Å

e5x9wB4[B:266-560] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 3.3Å

e5yk4A2[A:266-560] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 2.970Å

e5yk4B3[B:266-560] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; X-RAY DIFFRACTION 2.970Å

e6i5fB4[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.600Å

e6i5fA4[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.600Å

e7ai5A1[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ai5B2[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ai6A4[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ai6B1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ai7A4[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ai7B3[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7aibA3[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7aibB1[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7aicA3[A:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7aicB2[B:270-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou2A1[A:270-444,A:513-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou2B2[B:272-412,B:520-565] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou4A4[A:270-442,A:514-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7otoB3[B:275-441,B:517-564] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou0B1[B:275-441,B:517-564] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7otoA2[A:270-442,A:512-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou0A2[A:270-442,A:512-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e7ou4B2[B:270-440,B:514-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein MutS ; ELECTRON MICROSCOPY

e8ag6B2[B:736-831,B:854-1071] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA mismatch repair protein Msh6 ; ELECTRON MICROSCOPY

e8olxB4[B:521-828] Image Pymol Jmol Links: PDB, SCOP, CATH

DNA mismatch repair protein Msh3 ; ELECTRON MICROSCOPY

e8om5B1[B:521-828] Image Pymol Jmol Links: PDB, SCOP, CATH

DNA mismatch repair protein Msh3 ; ELECTRON MICROSCOPY

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes