Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices
Representatives:
e1cs8A2[A:1P-96P] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
HUMAN PROCATHEPSIN L ; X-RAY DIFFRACTION 1.8Å
e1by8A2[A:5-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROTEIN (PROCATHEPSIN K) ; X-RAY DIFFRACTION 2.6Å
e2c0yA2[A:3-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROCATHEPSIN S ; X-RAY DIFFRACTION 2.100Å
e1cjlA2[A:5P-96P] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,
PROCATHEPSIN L ; X-RAY DIFFRACTION 2.2Å
e2o6xA2[A:8-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Secreted cathepsin L 1 ; X-RAY DIFFRACTION 1.400Å
e7pckA2[A:1P-99P] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,
PROTEIN (PROCATHEPSIN K) ; X-RAY DIFFRACTION 3.2Å
e7pckB2[B:1P-99P] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,
PROTEIN (PROCATHEPSIN K) ; X-RAY DIFFRACTION 3.2Å
e7pckC1[C:1P-99P] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,
PROTEIN (PROCATHEPSIN K) ; X-RAY DIFFRACTION 3.2Å
e7pckD2[D:1P-99P] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,
PROTEIN (PROCATHEPSIN K) ; X-RAY DIFFRACTION 3.2Å
e3qj3A2[A:2-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin L-like protein ; ligands: ACT ; X-RAY DIFFRACTION 1.85Å
e3qj3B2[B:6-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin L-like protein ; ligands: ACT ; X-RAY DIFFRACTION 1.85Å
e3qt4A2[A:3-95] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin-L-like midgut cysteine proteinase ; ligands: PG4,PG6,PO4 ; X-RAY DIFFRACTION 2.11Å
e5jt8A1[A:6-82] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Blo t 1 allergen ; ligands: NAG,NO3 ; X-RAY DIFFRACTION 2.1Å
e5jt8B2[B:4-82] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Blo t 1 allergen ; ligands: NAG,NO3 ; X-RAY DIFFRACTION 2.1Å
e6czkA2[A:2-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Pro-cathepsin H ; ligands: GOL,NAG,SO4 ; X-RAY DIFFRACTION 2.00Å
e5z5oA1[A:1-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin K ; ligands: EDO,GOL,PEG,SO4 ; X-RAY DIFFRACTION 1.92Å
e6czsA1[A:24-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Pro-cathepsin H ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 1.66Å
e5z5oB1[B:-3-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin K ; ligands: EDO,GOL,MPD,PEG,SO4 ; X-RAY DIFFRACTION 1.92Å
e6u7dA1[A:7-99] Image Pymol Jmol Links: PDB, SCOP, CATH
FBSB ; X-RAY DIFFRACTION 3.00Å
e6jd8A2[A:0-96] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin L1 ; ligands: EOH,PGE ; X-RAY DIFFRACTION 1.457Å
e6jd0A2[A:1-96] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin L1 ; ligands: EDO,EOH,GOL,NA,PGE,PO4,POL ; X-RAY DIFFRACTION 1.800Å
e7avmA1[A:38-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cysteine protease ; ligands: GOL ; X-RAY DIFFRACTION 2.8Å
e7qbmP1[P:8-74] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin K ; ligands: A0U,ACT,MG ; X-RAY DIFFRACTION 1.790Å
e7qboP1[P:8-74] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin K ; ligands: EDO,MG ; X-RAY DIFFRACTION 1.900Å
e3f75P1[P:108-182] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cathepsin L Propeptide ; ligands: BR,CL,EDO ; X-RAY DIFFRACTION 1.99Å
e5egwA1[A:22-130] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cysteine protease ; X-RAY DIFFRACTION 2.70Å
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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
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