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
dimerize through 4th strand, antiparallel
Representatives:
e1ekrA1[A:11-156] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 1.95Å
e1eksA1[A:15-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: TLA ; X-RAY DIFFRACTION 2.48Å
e3jqjA1[A:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e2ohdA1[A:5-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2eeyA1[A:2-161] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDOPTERIN BIOSYNTHESIS ; X-RAY DIFFRACTION 1.94Å
e2eknA1[A:12-156] Image Pymol Jmol Links: PDB, SCOP, CATH
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: FLC ; X-RAY DIFFRACTION 2.05Å
e2ideA1[A:8-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideB1[B:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideC1[C:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideD1[D:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideE1[E:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideG1[G:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideH1[H:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideI1[I:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideJ1[J:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideK1[K:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ideL1[L:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2ohdB1[B:4-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2ohdC1[C:3-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2ohdD1[D:4-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2ohdE1[E:4-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2ohdF1[F:4-147] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; X-RAY DIFFRACTION 2.2Å
e2eknB1[B:13-157] Image Pymol Jmol Links: PDB, SCOP, CATH
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: FLC ; X-RAY DIFFRACTION 2.05Å
e2eknC1[C:13-157] Image Pymol Jmol Links: PDB, SCOP, CATH
PROBABLE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: FLC ; X-RAY DIFFRACTION 2.05Å
e2ideF1[F:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.9Å
e2iihA1[A:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: PO4 ; X-RAY DIFFRACTION 1.75Å
e3jqjB1[B:9-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjC1[C:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjD1[D:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjE1[E:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjF1[F:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjG1[G:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjH1[H:10-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjI1[I:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjJ1[J:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjK1[K:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqjL1[L:10-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: GOL,PGR,PO4 ; X-RAY DIFFRACTION 1.9Å
e3jqkA1[A:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: ACT,PO4 ; X-RAY DIFFRACTION 1.75Å
e3jqmA1[A:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GOL,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmC1[C:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GOL,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmD1[D:9-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GTP ; X-RAY DIFFRACTION 2.5Å
e3jqmI1[I:9-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GTP ; X-RAY DIFFRACTION 2.5Å
e3jqmB1[B:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmE1[E:7-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmF1[F:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GOL,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmG1[G:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e3jqmH1[H:10-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN C ; ligands: EDO,FLC,GOL,GTP,PEG ; X-RAY DIFFRACTION 2.5Å
e4fdfB1[B:23-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein C 2 ; X-RAY DIFFRACTION 2.20Å
e4fdfA1[A:22-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein C 2 ; X-RAY DIFFRACTION 2.20Å
e4pydA1[A:13-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS ; X-RAY DIFFRACTION 3.180Å
e4pydB1[B:7-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS,EDO ; X-RAY DIFFRACTION 3.180Å
e4pydC1[C:4-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS,EDO,GOL ; X-RAY DIFFRACTION 3.180Å
e4pydD1[D:5-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS,DTT,GOL ; X-RAY DIFFRACTION 3.180Å
e4pydE1[E:9-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS,EDO,GOL ; X-RAY DIFFRACTION 3.180Å
e4pydF1[F:24-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 8CS,EDO,GOL ; X-RAY DIFFRACTION 3.180Å
e4pyaA1[A:23-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Molybdenum cofactor biosynthesis protein MoaC ; ligands: 2X3,EDO ; X-RAY DIFFRACTION 1.7890Å
looks like an elaborated ferredoxin
contains a HTH motif
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