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
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
Representatives:
e2vchA3[A:6-250] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
HYDROQUINONE GLUCOSYLTRANSFERASE ; ligands: EDO,UDP ; X-RAY DIFFRACTION 1.45Å
e2iw1A3[A:2-167] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
LIPOPOLYSACCHARIDE CORE BIOSYNTHESIS PROTEIN RFAG ; ligands: U2F ; X-RAY DIFFRACTION 1.500Å
e1jixA3[A:171-351] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA BETA-GLUCOSYLTRANSFERASE ; ligands: UDP ; X-RAY DIFFRACTION 1.65Å
e3hbmA1[A:1-142] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-sugar hydrolase ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å
e3hbmA2[A:143-282] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-sugar hydrolase ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å
e2c1xA3[A:7-250] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-GLUCOSE FLAVONOID 3-O GLYCOSYLTRANSFERASE ; ligands: B3P,UDP ; X-RAY DIFFRACTION 1.9Å
e2c1zA2[A:6-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-GLUCOSE FLAVONOID 3-O GLYCOSYLTRANSFERASE ; ligands: KMP,U2F ; X-RAY DIFFRACTION 1.9Å
e2c9zA2[A:6-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP GLUCOSE\:FLAVONOID 3-O-GLUCOSYLTRANSFERASE ; ligands: QUE,UDP ; X-RAY DIFFRACTION 2.1Å
e3hbfA1[A:12-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flavonoid 3-O-glucosyltransferase ; ligands: MYC,UDP ; X-RAY DIFFRACTION 2.100Å
e3hbjA1[A:10-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flavonoid 3-O-glucosyltransferase ; ligands: UDP ; X-RAY DIFFRACTION 2.1Å
e4relA2[A:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glucose:anthocyanidin 3-O-glucosyltransferase ; ligands: ACT,GOL,KMP ; X-RAY DIFFRACTION 1.75Å
e4remA1[A:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glucose:anthocyanidin 3-O-glucosyltransferase ; ligands: DLM,GOL ; X-RAY DIFFRACTION 2.55Å
e4renA1[A:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glucose:anthocyanidin 3-O-glucosyltransferase ; ligands: GOL,P5M ; X-RAY DIFFRACTION 2.70Å
e3wc4A1[A:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-GLUCOSE:ANTHOCYANIDIN 3-O-GLUCOSYLTRANSFERASE ; ligands: GOL ; X-RAY DIFFRACTION 1.85Å
e4whmA1[A:1-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glucose:anthocyanidin 3-O-glucosyltransferase ; ligands: ACT,GOL,UDP ; X-RAY DIFFRACTION 1.85Å
e3ia7A2[A:1-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG4 ; ligands: CA,CL ; X-RAY DIFFRACTION 1.910Å
e4m60A2[A:6-230] Image Pymol Jmol Links: PDB, SCOP, CATH
Oleandomycin glycosyltransferase ; ligands: EPE ; X-RAY DIFFRACTION 1.770Å
e3rscA2[A:0-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG2 ; ligands: C0T,PO4,TYD ; X-RAY DIFFRACTION 2.190Å
e5du2A2[A:5-214] Image Pymol Jmol Links: PDB, SCOP, CATH
EspG2 glycosyltransferase ; X-RAY DIFFRACTION 2.70Å
e3ia7B2[B:1-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG4 ; ligands: CA ; X-RAY DIFFRACTION 1.910Å
e3iaaA2[A:1-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG2 ; ligands: TYD ; X-RAY DIFFRACTION 2.500Å
e3iaaB1[B:1-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG2 ; ligands: TYD ; X-RAY DIFFRACTION 2.500Å
e2iyaA2[A:11-157,A:179-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
OLEANDOMYCIN GLYCOSYLTRANSFERASE ; ligands: UDP,ZIO ; X-RAY DIFFRACTION 1.70Å
e2iyaB1[B:10-157,B:182-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
OLEANDOMYCIN GLYCOSYLTRANSFERASE ; ligands: UDP,ZIO ; X-RAY DIFFRACTION 1.70Å
e2iyfA2[A:7-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
OLEANDOMYCIN GLYCOSYLTRANSFERASE ; ligands: ERY ; X-RAY DIFFRACTION 1.7Å
e2iyfB2[B:5-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
OLEANDOMYCIN GLYCOSYLTRANSFERASE ; ligands: ERY,UDP ; X-RAY DIFFRACTION 1.7Å
e4m7pA1[A:6-217] Image Pymol Jmol Links: PDB, SCOP, CATH
OLEANDOMYCIN GLYCOSYLTRANSFERASE ; X-RAY DIFFRACTION 1.77Å
e4m83A1[A:7-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Oleandomycin glycosyltransferase ; ligands: ERY ; X-RAY DIFFRACTION
e4m83B2[B:5-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Oleandomycin glycosyltransferase ; ligands: ERY ; X-RAY DIFFRACTION
e3rscB2[B:0-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CalG2 ; ligands: C0T,PO4,TYD ; X-RAY DIFFRACTION 2.190Å
e5du2B1[B:4-215] Image Pymol Jmol Links: PDB, SCOP, CATH
EspG2 glycosyltransferase ; X-RAY DIFFRACTION 2.70Å
e5u6mA2[A:6-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: BGC,SAL,UDP ; X-RAY DIFFRACTION 2.56Å
e5u6mB2[B:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: BGC,SAL,UDP ; X-RAY DIFFRACTION 2.56Å
e5u6nA2[A:5-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: BGC,GLN,LB2,SAL,UDP ; X-RAY DIFFRACTION 2Å
e5u6nB2[B:1-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: BGC,GLN,LB2,SAL,UDP ; X-RAY DIFFRACTION 2Å
e5u6sA1[A:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 1.996Å
e5u6sB2[B:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 1.996Å
e5v2jA1[A:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 1.8Å
e5v2jB2[B:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 1.8Å
e5v2kA2[A:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 2Å
e5v2kB1[B:4-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 74F2 ; ligands: 7WV,BGC,LB2,UDP ; X-RAY DIFFRACTION 2Å
e6bk0A2[A:15-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 79 ; ligands: UDP ; X-RAY DIFFRACTION 1.47Å
e5nlmB2[B:8-255] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
indoxyl UDP-glucosyltransferase ; ligands: IOS,MG ; X-RAY DIFFRACTION 2.14Å
e6bk1A1[A:15-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 79 ; ligands: UDP ; X-RAY DIFFRACTION 1.58Å
e6bk2A2[A:15-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 79 ; ligands: UDP ; X-RAY DIFFRACTION 1.29Å
e6bk3A2[A:15-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 79 ; ligands: B2S ; X-RAY DIFFRACTION 2.17Å
e5nlmA2[A:10-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
indoxyl UDP-glucosyltransferase ; ligands: IOS,MG ; X-RAY DIFFRACTION 2.14Å
e6jtdA1[A:5-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
C-glycosyltransferase ; ligands: EDO,UDP ; X-RAY DIFFRACTION 1.85Å
e6jtdB1[B:10-259] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
C-glycosyltransferase ; ligands: EDO,UDP ; X-RAY DIFFRACTION 1.85Å
e6ingA2[A:11-257] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: GOL,UDP ; X-RAY DIFFRACTION 1.698Å
e6infA2[A:11-257] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: UDP ; X-RAY DIFFRACTION 1.69Å
e6inhA2[A:11-257] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: AQ9,GOL,UDP ; X-RAY DIFFRACTION 2.10Å
e6iniA2[A:11-257] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: AQ9,AUO,GOL,UDP ; X-RAY DIFFRACTION 1.70Å
e6ij7A2[A:7-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Rhamnosyltransferase protein ; ligands: EDO,GOL ; X-RAY DIFFRACTION 2.700Å
e6ij7B2[B:7-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Rhamnosyltransferase protein ; ligands: EDO,GOL ; X-RAY DIFFRACTION 2.700Å
e6ijaB2[B:6-222] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 89C1 ; ligands: AWU ; X-RAY DIFFRACTION 3.200Å
e6ijaC1[C:6-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 89C1 ; X-RAY DIFFRACTION 3.200Å
e6ijaD1[D:6-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 89C1 ; X-RAY DIFFRACTION 3.200Å
e6ijdA1[A:7-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 89C1 ; ligands: QUE ; X-RAY DIFFRACTION 3.200Å
e6ijdB1[B:7-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 89C1 ; ligands: QUE ; X-RAY DIFFRACTION 3.200Å
e6ij9A1[A:8-222] Image Pymol Jmol Links: PDB, SCOP, CATH
UDP-glycosyltransferase 89C1 ; ligands: UDP ; X-RAY DIFFRACTION 3.000Å
e6ij9B1[B:8-222] Image Pymol Jmol Links: PDB, SCOP, CATH
UDP-glycosyltransferase 89C1 ; ligands: UDP ; X-RAY DIFFRACTION 3.000Å
e6ij9D2[D:7-221] Image Pymol Jmol Links: PDB, SCOP, CATH
UDP-glycosyltransferase 89C1 ; ligands: UDP ; X-RAY DIFFRACTION 3.000Å
e6kviA2[A:13-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: UDP ; X-RAY DIFFRACTION 2.598Å
e6kvjA2[A:13-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: UDX ; X-RAY DIFFRACTION 2.499Å
e6kvkA1[A:13-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: DX0,UDP ; X-RAY DIFFRACTION 2.397Å
e6kvlA1[A:13-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-glycosyltransferase 76G1 ; ligands: AUO,UDP ; X-RAY DIFFRACTION 1.998Å
e6j31A2[A:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
kcn28 ; ligands: BG9 ; X-RAY DIFFRACTION 2.240Å
e6j31B1[B:1-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
kcn28 ; ligands: BG9 ; X-RAY DIFFRACTION 2.240Å
e6j31C1[C:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
kcn28 ; ligands: BG9 ; X-RAY DIFFRACTION 2.240Å
e6j31D2[D:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
kcn28 ; ligands: BG9 ; X-RAY DIFFRACTION 2.240Å
e6j32A1[A:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Kcn28 ; X-RAY DIFFRACTION 2.500Å
e6j32B2[B:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Kcn28 ; X-RAY DIFFRACTION 2.500Å
e6j32C2[C:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Kcn28 ; X-RAY DIFFRACTION 2.500Å
e6j32D1[D:2-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Kcn28 ; X-RAY DIFFRACTION 2.500Å
e6l5pA2[A:16-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GgCGT ; ligands: UPG ; X-RAY DIFFRACTION 2.600Å
e6l5qA2[A:16-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GgCGT ; ligands: GDU ; X-RAY DIFFRACTION 2.8940Å
e6l7hA1[A:7-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GgCGT1 ; ligands: E7F,UDP ; X-RAY DIFFRACTION 1.800Å
e8i0dA1[A:2-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosyltransferase ; ligands: UPG ; X-RAY DIFFRACTION 1.43Å
e5gvvA2[A:295-406] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosyl transferase family 8 ; X-RAY DIFFRACTION 1.95Å
e2acvA3[A:3-249] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
triterpene UDP-glucosyl transferase UGT71G1 ; ligands: UDP ; X-RAY DIFFRACTION 2Å
e4pqgA1[A:1-69,A:196-306] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosyltransferase Gtf1 ; ligands: NAG,UDP ; X-RAY DIFFRACTION 2.00Å
e2pq6A3[A:8-273] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UDP-GLUCURONOSYL/UDP-GLUCOSYLTRANSFERASE ; X-RAY DIFFRACTION 2.1Å
e3qkwB2[B:-1-159] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Nucleotide sugar synthetase-like protein ; ligands: UDP ; X-RAY DIFFRACTION 2.10Å
e4w6qB1[B:154-330] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
glucosyltransferase ; ligands: SER,UDP ; X-RAY DIFFRACTION 2.7Å
e4w6qB2[B:-1-153] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
glucosyltransferase ; ligands: SER,UDP ; X-RAY DIFFRACTION 2.7Å
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