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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

X: Immunoglobulin-like beta-sandwich
H: Immunoglobulin-related
T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like
F: Cadherin

PF00028 CL0159

Representatives:

e2omzB1[B:-2-101] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Epithelial-cadherin ; X-RAY DIFFRACTION 1.600Å

e6cguA1[A:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cg7B2[B:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-22 ; ligands: CA ; X-RAY DIFFRACTION 2.7Å

e6cgsB1[B:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-7 ; ligands: CA ; X-RAY DIFFRACTION 1.700Å

e6cguB2[B:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cguC1[C:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cguD2[D:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cg7B1[B:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-22 ; ligands: CA ; X-RAY DIFFRACTION 2.7Å

e6cgsB2[B:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-7 ; ligands: CA,GOL ; X-RAY DIFFRACTION 1.700Å

e6cguB1[B:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cguC2[C:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e6cguD1[D:99-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-6 ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e5vh2B2[B:1284-1357] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 2.840Å

e5vvmB1[B:2147-2270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vvmB3[B:2265-2372] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vvmB2[B:2373-2473] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vt8B1[B:2582-2692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8B2[B:2481-2581] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5v5xA4[A:368-411] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xB3[B:368-411] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xC3[C:368-411] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xD5[D:368-411] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xA1[A:412-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xB2[B:412-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xC5[C:412-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xD1[D:412-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 3.5Å

e5v5xA5[A:524-632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xB4[B:524-632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xC1[C:524-632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xD3[D:524-634] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xA2[A:260-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xB5[B:260-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xC2[C:260-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5v5xD2[D:260-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MCG133388, isoform CRA_y ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.5Å

e5un2A2[A:1931-2038] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,K ; X-RAY DIFFRACTION 2.96Å

e5un2A1[A:2039-2144] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.96Å

e5un2A3[A:2145-2265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.96Å

e5tfmA2[A:747-858] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 2.92Å

e5tfmA3[A:641-746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 2.92Å

e5tfmA4[A:534-640] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vvmA1[A:2153-2270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vvmA2[A:2265-2372] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vvmA3[A:2373-2473] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 3.540Å

e5vt8A1[A:2582-2692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8C1[C:2582-2692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8D2[D:2582-2688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8A2[A:2481-2581] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8C2[C:2481-2581] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5vt8D1[D:2481-2581] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.92Å

e5w1dA2[A:377-481] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e5w1dA4[A:690-791] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e5w1dA1[A:589-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e5w1dA3[A:482-588] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,K ; X-RAY DIFFRACTION 3.35Å

e6cv7A3[A:118-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,EDO,MAN,NAG ; X-RAY DIFFRACTION 1.692Å

e5w4tC2[C:0-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA,MPD ; X-RAY DIFFRACTION 2.65Å

e5w4tC3[C:101-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tC1[C:205-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5wj8A2[A:1387-1496] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 1.86Å

e5wj8A1[A:1287-1386] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,CL,K ; X-RAY DIFFRACTION 1.86Å

e5wjmA2[A:1822-1907] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,MPD ; X-RAY DIFFRACTION 2.9Å

e5wjmA1[A:1716-1821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,MPD ; X-RAY DIFFRACTION 2.9Å

e6c10A1[A:1144-1249] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: MAN ; X-RAY DIFFRACTION 1.40Å

e5w4tA3[A:0-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA,MRD ; X-RAY DIFFRACTION 2.65Å

e5w4tB1[B:0-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA,MRD ; X-RAY DIFFRACTION 2.65Å

e5w4tD3[D:0-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA,MPD ; X-RAY DIFFRACTION 2.65Å

e5w4tA2[A:101-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tB2[B:101-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tD2[D:101-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tA1[A:205-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tB3[B:205-314] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e5w4tD1[D:205-314] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin 23 ; ligands: CA ; X-RAY DIFFRACTION 2.65Å

e6c13A3[A:924-1034] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: NAG ; ELECTRON MICROSCOPY

e6c13B3[B:924-1034] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: NAG ; ELECTRON MICROSCOPY

e6c13A2[A:1035-1149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: NAG ; ELECTRON MICROSCOPY

e6c13B2[B:1035-1149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: NAG ; ELECTRON MICROSCOPY

e6bxzC2[C:1009-1123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin related 15 ; ligands: CA ; X-RAY DIFFRACTION 2.09Å

e6bxzA2[A:1011-1123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin related 15 ; ligands: CA ; X-RAY DIFFRACTION 2.09Å

e6c13A4[A:821-923] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ELECTRON MICROSCOPY

e6c13B4[B:821-923] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ELECTRON MICROSCOPY

e5tflB2[B:748-860] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 3.56Å

e5tflB1[B:645-747] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 3.56Å

e5vh2C1[C:1284-1388] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 2.840Å

e5vh2D1[D:1284-1388] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,NA ; X-RAY DIFFRACTION 2.840Å

e5vh2C2[C:1180-1283] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.840Å

e5vh2D2[D:1180-1283] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.840Å

e6bx7A1[A:324-443] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 2.85Å

e6bx7A2[A:218-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 2.85Å

e6bx7A4[A:105-217] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA,EPE ; X-RAY DIFFRACTION 2.85Å

e6bwnA1[A:688-794] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,K ; X-RAY DIFFRACTION 2.94Å

e6bwnA2[A:589-687] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,K ; X-RAY DIFFRACTION 2.94Å

e6bxuB3[B:481-587] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.79Å

e6bxuB2[B:588-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.79Å

e6bxuB1[B:690-791] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.79Å

e5ulyB1[B:128-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.64Å

e5ulyC2[C:125-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.64Å

e5ulyD2[D:125-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.64Å

e6qnuD1[D:215-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ELECTRON MICROSCOPY

e6qnuE2[E:215-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ELECTRON MICROSCOPY

e6qnuD2[D:108-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ELECTRON MICROSCOPY

e6qnuE1[E:108-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ELECTRON MICROSCOPY

e6cxyC2[C:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH

Cadherin-1 ; ligands: CA,EDO ; X-RAY DIFFRACTION 2.200Å

e6cxyC1[C:102-213] Image Pymol Jmol Links: PDB, SCOP, CATH

Cadherin-1 ; ligands: CA,PG4 ; X-RAY DIFFRACTION 2.200Å

e6e6bA1[A:524-634] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,MAN ; X-RAY DIFFRACTION 4.5Å

e6e6bA2[A:414-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 4.5Å

e6e6bA3[A:97-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,NAG ; X-RAY DIFFRACTION 4.5Å

e6e6bA4[A:206-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA ; X-RAY DIFFRACTION 4.5Å

e6e6bA5[A:309-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,NAG ; X-RAY DIFFRACTION 4.5Å

e6e6bB5[B:524-632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,MAN ; X-RAY DIFFRACTION 4.5Å

e6e6bB1[B:414-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,MAN,NAG ; X-RAY DIFFRACTION 4.5Å

e6e6bB2[B:97-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,FUC,NAG ; X-RAY DIFFRACTION 4.5Å

e6e6bB3[B:206-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA ; X-RAY DIFFRACTION 4.5Å

e6e6bB4[B:309-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma B4 ; ligands: CA,NAG ; X-RAY DIFFRACTION 4.5Å

e6e8fB1[B:489-595] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.99Å

e6e8fA3[A:489-594] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.99Å

e6e8fC1[C:489-589] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.99Å

e6gl7F4[F:155-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proto-oncogene tyrosine-protein kinase receptor Ret ; ELECTRON MICROSCOPY

e6gl7E1[E:155-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proto-oncogene tyrosine-protein kinase receptor Ret ; ELECTRON MICROSCOPY

e6meqA1[A:97-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 2.9Å

e6meqA4[A:311-416] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 2.9Å

e6meqA2[A:207-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 2.9Å

e6mfoA2[A:118-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 3.15Å

e6eetA3[A:899-1008] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.20Å

e6eetA2[A:1009-1123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.20Å

e6mgaA2[A:324-439] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.15Å

e6mgaA3[A:218-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.15Å

e6mgaA1[A:105-217] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 3.15Å

e6eb5A2[A:123-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.6Å

e6merA3[A:97-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 3Å

e6merA2[A:311-414] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 3Å

e6merA4[A:207-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin gamma-B3 ; ligands: CA ; X-RAY DIFFRACTION 3Å

e6eb5B1[B:124-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.6Å

e6pimA3[A:266-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 3.05Å

e6pimA1[A:324-438] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 3.05Å

e6pimA2[A:216-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 3.05Å

e6n2eC2[C:103-198] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6n2eD2[D:103-198] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6n2eC1[C:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6n2eD1[D:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6n22A2[A:120-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.40Å

e6n2eA3[A:118-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6n2eB2[B:118-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.90Å

e6sitD2[D:215-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ligands: CA ; X-RAY DIFFRACTION 4.490Å

e6sitD1[D:100-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ligands: CA ; X-RAY DIFFRACTION 4.490Å

e6velC2[C:102-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-like protein SMT3,Cadherin-1 ; ligands: CA,NA,SO4 ; X-RAY DIFFRACTION 2.650Å

e6velC1[C:203-314] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-like protein SMT3,Cadherin-1 ; ligands: CA,NA,SO4 ; X-RAY DIFFRACTION 2.650Å

e6qntD1[D:108-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Desmoglein-2 ; ELECTRON MICROSCOPY

e6vfvA1[A:516-573] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-8 ; ligands: CA,CL,MAN ; X-RAY DIFFRACTION 2.9Å

e6vfvA2[A:574-682] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-8 ; ligands: CA,EDO,FUC,NAG ; X-RAY DIFFRACTION 2.9Å

e6vfvA3[A:461-515] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-8 ; ligands: CA,CL ; X-RAY DIFFRACTION 2.9Å

e6vfqA3[A:335-437] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,EDO ; X-RAY DIFFRACTION 2.3Å

e6vftA4[A:328-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,FUC,NAG ; X-RAY DIFFRACTION 3.7Å

e6vftC3[C:328-449] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vftD4[D:328-447] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vfuC2[C:319-428] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,NAG,NI ; X-RAY DIFFRACTION 3.5Å

e6vfuA2[A:319-428] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,FUC,NAG,NI ; X-RAY DIFFRACTION 3.5Å

e6vfuB1[B:319-423] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.5Å

e6vfwA4[A:335-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwB2[B:335-439] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwC1[C:335-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA ; X-RAY DIFFRACTION 3.6Å

e6vfwD2[D:335-438] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: BMA,CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwE4[E:335-439] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfrA3[A:321-428] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,EDO,NAG ; X-RAY DIFFRACTION 2.79Å

e6vfrB3[B:321-428] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,NAG ; X-RAY DIFFRACTION 2.79Å

e6vftB4[B:328-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vfqA4[A:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: ACT,CA,FUC,NAG ; X-RAY DIFFRACTION 2.3Å

e6vftA3[A:221-327] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,FUC,NAG ; X-RAY DIFFRACTION 3.7Å

e6vftC4[C:221-327] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vftD1[D:221-327] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vfuC4[C:212-318] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,CL,NAG ; X-RAY DIFFRACTION 3.5Å

e6vfuA3[A:212-318] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,CL,NAG ; X-RAY DIFFRACTION 3.5Å

e6vfuB3[B:212-318] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.5Å

e6vfwA1[A:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,FUC,NAG ; X-RAY DIFFRACTION 3.6Å

e6vfwB3[B:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.6Å

e6vfwC4[C:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.6Å

e6vfwD4[D:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.6Å

e6vfwE3[E:228-334] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,FUC,NAG ; X-RAY DIFFRACTION 3.6Å

e6vfrA4[A:214-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,EDO,NA,NAG ; X-RAY DIFFRACTION 2.79Å

e6vfrB4[B:214-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,EDO,NA,NAG ; X-RAY DIFFRACTION 2.79Å

e6vftB2[B:221-327] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.7Å

e6vfqA2[A:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,EDO,MAN ; X-RAY DIFFRACTION 2.3Å

e6vftA1[A:109-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.7Å

e6vftC2[C:109-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.7Å

e6vftD2[D:109-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.7Å

e6vfuC3[C:102-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA,CL ; X-RAY DIFFRACTION 3.5Å

e6vfuA4[A:102-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA ; X-RAY DIFFRACTION 3.5Å

e6vfuB4[B:102-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-19 ; ligands: CA ; X-RAY DIFFRACTION 3.5Å

e6vfwA2[A:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwB1[B:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwC3[C:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwD1[D:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfwE1[E:99-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.6Å

e6vfrA2[A:104-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,EDO ; X-RAY DIFFRACTION 2.79Å

e6vfrB2[B:104-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-18 ; ligands: CA,EDO ; X-RAY DIFFRACTION 2.79Å

e6vftB3[B:109-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-17 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.7Å

e6vfpA2[A:324-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.2Å

e6vfpA1[A:218-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.2Å

e6vfpA3[A:105-217] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-1 ; ligands: CA ; X-RAY DIFFRACTION 3.2Å

e6vg4A5[A:551-663] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.298Å

e6vg4A1[A:440-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,NAG ; X-RAY DIFFRACTION 3.298Å

e6vg4A2[A:99-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,MAN ; X-RAY DIFFRACTION 3.298Å

e6vg4A4[A:227-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-10 ; ligands: CA,NAG,TAM ; X-RAY DIFFRACTION 3.298Å

Previous Next

e4zi8B2[B:99-207] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein Pcdhgc3 ; ligands: CA,MPD ; X-RAY DIFFRACTION 1.698Å

e4zi8B3[B:208-314] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein Pcdhgc3 ; ligands: CA,EPE,MPD ; X-RAY DIFFRACTION 1.698Å

e5uz8A1[A:2265-2372] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 1.85Å

e5uz8A2[A:2373-2479] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,CL,GSH ; X-RAY DIFFRACTION 1.85Å

e5uz8A3[A:2480-2581] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA,GSH ; X-RAY DIFFRACTION 1.85Å

e1edhA1[A:102-213] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

E-CADHERIN ; ligands: CA ; X-RAY DIFFRACTION 2.0Å

e5tpkA1[A:690-791] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.00Å

e5t4mB2[B:367-481] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,CL ; X-RAY DIFFRACTION 2.24Å

e5t4mB3[B:482-595] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.24Å

e5i8dA1[A:1929-2038] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.69Å

e5i8dA2[A:2039-2144] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.69Å

e5i8dA3[A:2145-2263] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cadherin-23 ; ligands: CA ; X-RAY DIFFRACTION 2.69Å

e4xhzA1[A:795-898] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA ; X-RAY DIFFRACTION 2.8Å

e4xhzA2[A:899-1008] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; ligands: CA,CL ; X-RAY DIFFRACTION 2.8Å

e4xhzA3[A:1009-1116] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protocadherin-15 ; X-RAY DIFFRACTION 2.8Å

e1l3wA3[A:214-326] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EP-CADHERIN ; ligands: CA,NAG,NDG ; X-RAY DIFFRACTION 3.08Å

e1l3wA4[A:327-433] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EP-CADHERIN ; ligands: CA,NAG,NDG ; X-RAY DIFFRACTION 3.08Å

e4ux8A2[A:155-264] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTO-ONCOGENE TYROSINE-PROTEIN KINASE RECEPTOR RET ; ligands: CA ; 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.

X: Glycosyl hydrolase domain-like

some similarity with Ig fold

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