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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

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

X: Rossmann-like
H: Rossmann-related
T: S-adenosyl-L-methionine-dependent methyltransferases
F: Methyltransf_11

PF08241 CL0063

Representatives:

e1vl5A1[A:28-258] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

unknown conserved protein BH2331 ; X-RAY DIFFRACTION 1.850Å

e2yqzA1[A:2-262] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TTHA0223 ; ligands: SAM ; X-RAY DIFFRACTION 1.8Å

e2yqzB1[B:2-262] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TTHA0223 ; ligands: SAM ; X-RAY DIFFRACTION 1.8Å

e3i9fA1[A:20-184] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative type 11 methyltransferase ; ligands: ZN ; X-RAY DIFFRACTION 2.500Å

e2p8jA1[A:2-208] Image Pymol Jmol Links: PDB, SCOP, CATH

S-adenosylmethionine-dependent methyltransferase ; ligands: GOL,PEG,PGE,SO4 ; X-RAY DIFFRACTION 2.00Å

e3ccfA1[A:22-259] Image Pymol Jmol Links: PDB, SCOP, CATH

Cyclopropane-fatty-acyl-phospholipid synthase ; ligands: BEZ ; X-RAY DIFFRACTION 1.90Å

e2p8jB1[B:1-207] Image Pymol Jmol Links: PDB, SCOP, CATH

S-adenosylmethionine-dependent methyltransferase ; ligands: GOL,PEG,PGE,SO4 ; X-RAY DIFFRACTION 2.00Å

e3ccfB1[B:19-260] Image Pymol Jmol Links: PDB, SCOP, CATH

Cyclopropane-fatty-acyl-phospholipid synthase ; ligands: BEZ ; X-RAY DIFFRACTION 1.90Å

e3i9fB1[B:16-184] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative type 11 methyltransferase ; ligands: ZN ; X-RAY DIFFRACTION 2.500Å

e3bkwA1[A:24-242] Image Pymol Jmol Links: PDB, SCOP, CATH

S-adenosylmethionine dependent methyltransferase ; ligands: EDO ; X-RAY DIFFRACTION 1.60Å

e3bkwB1[B:24-242] Image Pymol Jmol Links: PDB, SCOP, CATH

S-adenosylmethionine dependent methyltransferase ; ligands: EDO ; X-RAY DIFFRACTION 1.60Å

e3l8dA1[A:32-233] Image Pymol Jmol Links: PDB, SCOP, CATH

Methyltransferase ; ligands: K ; X-RAY DIFFRACTION 1.7Å

e3egeA1[A:12-258] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative methyltransferase from antibiotic biosynthesis pathway ; ligands: EDO ; X-RAY DIFFRACTION 2.40Å

e3sm3A1[A:18-229] Image Pymol Jmol Links: PDB, SCOP, CATH

SAM-dependent methyltransferases ; ligands: CA,PEG ; X-RAY DIFFRACTION 2.197Å

e1vl5B1[B:28-258] Image Pymol Jmol Links: PDB, SCOP, CATH

unknown conserved protein BH2331 ; X-RAY DIFFRACTION 1.850Å

e1vl5C1[C:28-258] Image Pymol Jmol Links: PDB, SCOP, CATH

unknown conserved protein BH2331 ; X-RAY DIFFRACTION 1.850Å

e1vl5D1[D:28-258] Image Pymol Jmol Links: PDB, SCOP, CATH

unknown conserved protein BH2331 ; X-RAY DIFFRACTION 1.850Å

e1vlmB1[B:1-207] Image Pymol Jmol Links: PDB, SCOP, CATH

SAM-dependent methyltransferase ; X-RAY DIFFRACTION 2.200Å

e2gs9A1[A:2-212] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TT1324 ; ligands: FMT,SAH ; X-RAY DIFFRACTION 2.6Å

e2avnB1[B:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH

ubiquinone/menaquinone biosynthesis methyltransferase-related protein ; ligands: PO4,SAI ; X-RAY DIFFRACTION 2.35Å

e2gs9B1[B:2-212] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TT1324 ; ligands: FMT,SAH ; X-RAY DIFFRACTION 2.6Å

e3dlcA1[A:0-218] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative S-adenosyl-L-methionine-dependent Methyltransferase ; ligands: ACT,GOL,SAM ; X-RAY DIFFRACTION 1.15Å

e4krhA1[A:173-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE 2 ; ligands: SAM ; X-RAY DIFFRACTION 3.0Å

e4krhB2[B:170-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PHOSPHOETHANOLAMINE N-METHYLTRANSFERASE 2 ; ligands: SAM ; X-RAY DIFFRACTION 3.0Å

e4kriA2[A:171-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholethanolamine N-methyltransferase 2 ; ligands: 1SH,SAH ; X-RAY DIFFRACTION 1.72Å

e4kriB2[B:171-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholethanolamine N-methyltransferase 2 ; ligands: 1SH,SAH ; X-RAY DIFFRACTION 1.72Å

e4kriC2[C:172-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholethanolamine N-methyltransferase 2 ; ligands: 1SH,SAH ; X-RAY DIFFRACTION 1.72Å

e4ineB2[B:170-435] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN PMT-2 ; ligands: OPE,SAH ; X-RAY DIFFRACTION 1.45Å

e4ineA2[A:170-435] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN PMT-2 ; ligands: OPE,SAH ; X-RAY DIFFRACTION 1.45Å

e4hg2A2[A:17-251] Image Pymol Jmol Links: PDB, SCOP, CATH

Methyltransferase type 11 ; ligands: EDO,MES ; X-RAY DIFFRACTION 1.600Å

e2yr0A2[A:17-262] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TTHA0223 ; X-RAY DIFFRACTION 1.9Å

e2yr0B2[B:17-262] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN TTHA0223 ; X-RAY DIFFRACTION 1.9Å

e4hg2B2[B:17-252] Image Pymol Jmol Links: PDB, SCOP, CATH

Methyltransferase type 11 ; ligands: EDO,MES ; X-RAY DIFFRACTION 1.600Å

e4pneA1[A:3-282] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyltransferase-like protein ; ligands: MLI,SAH ; X-RAY DIFFRACTION 1.500Å

e4pneB1[B:4-282] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyltransferase-like protein ; ligands: MLI,SAH ; X-RAY DIFFRACTION 1.500Å

e5cm2Z1[Z:39-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRNA METHYLTRANSFERASE ; X-RAY DIFFRACTION 2.494Å

e5fcdA1[A:29-267] Image Pymol Jmol Links: PDB, SCOP, CATH

MccD ; ligands: CL ; X-RAY DIFFRACTION 2.10Å

e5fcdB1[B:30-267] Image Pymol Jmol Links: PDB, SCOP, CATH

MccD ; ligands: CL ; X-RAY DIFFRACTION 2.10Å

e5gm1A1[A:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1B1[B:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1C1[C:33-290] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1D1[D:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1E1[E:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1F1[F:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1G1[G:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1H1[H:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1I1[I:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1J1[J:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1K1[K:33-290] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1L1[L:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1M1[M:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1N1[N:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1O1[O:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1P1[P:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1Q1[Q:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm1R1[R:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH ; X-RAY DIFFRACTION 2.5Å

e5gm2B1[B:33-290] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2C1[C:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2D1[D:33-290] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2E1[E:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2F1[F:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2H1[H:33-290] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2J1[J:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2L1[L:24-31,L:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2M1[M:26-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2N1[N:33-288] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2O1[O:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2P1[P:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e5gm2R1[R:33-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

e2pxxA1[A:17-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Uncharacterized protein MGC2408 ; ligands: SAH,UNX ; X-RAY DIFFRACTION 1.300Å

e6g4wq1[q:16-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable 18S rRNA (guanine-N(7))-methyltransferase ; ELECTRON MICROSCOPY

e6f5zB1[B:2-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

24-sterol C-methyltransferase ; ligands: GOL,SAH ; X-RAY DIFFRACTION 1.350Å

e6f5zA1[A:2-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

24-sterol C-methyltransferase ; ligands: SAH ; X-RAY DIFFRACTION 1.350Å

e7v6hA1[A:21-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cyclopropane fatty-acyl-phospholipid synthase-like methyltransferase ; ligands: SAH ; X-RAY DIFFRACTION 3.05Å

e7v6hB1[B:21-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cyclopropane fatty-acyl-phospholipid synthase-like methyltransferase ; ligands: SAH ; X-RAY DIFFRACTION 3.05Å

e7wtwq1[q:6-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable 18S rRNA (guanine-N(7))-methyltransferase ; ELECTRON MICROSCOPY

e2o57A1[A:16-297] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

putative sarcosine dimethylglycine methyltransferase ; X-RAY DIFFRACTION 1.950Å

e1xxlA1[A:-3-230] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

YcgJ protein ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e1vlmA1[A:0-207] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

SAM-dependent methyltransferase ; ligands: NA ; X-RAY DIFFRACTION 2.200Å

e2avnA1[A:1-246] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

ubiquinone/menaquinone biosynthesis methyltransferase-related protein ; ligands: PO4,SAI ; X-RAY DIFFRACTION 2.35Å

e5gm2A1[A:10-290] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-methylransferase ; ligands: SAH,TEX ; X-RAY DIFFRACTION 2.8Å

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.

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