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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: Nucleotide-binding domain
F: Lys_Orn_oxgnase

PF13434 CL0063

Representatives:

e3s5wA1[A:9-171,A:355-428] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ornithine 5-monooxygenase ; ligands: FAD,NAP,ONH,PO4 ; X-RAY DIFFRACTION 1.9Å

e4nzhA1[A:31-214,A:407-490] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

L-ornithine N5 monooxygenase ; ligands: FAD,GOL,ORN ; X-RAY DIFFRACTION 2Å

e4b64A1[A:28-215,A:407-491] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: FAD,GOL,LYS,NAP,SO4 ; X-RAY DIFFRACTION 2.20Å

e4b63A1[A:29-215,A:407-491] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: FAD,GOL,NAP,ORN,SO4 ; X-RAY DIFFRACTION 1.90Å

e4b65A1[A:29-215,A:407-491] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: FAD,GOL,NDP,SO4 ; X-RAY DIFFRACTION 2.32Å

e4b66A2[A:31-215,A:407-489] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: ARG,FAD,GOL,NAP,SO4 ; X-RAY DIFFRACTION 2.90Å

e4b67A1[A:29-215,A:407-491] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: FAD,NAP,ORN,SO4 ; X-RAY DIFFRACTION 2.75Å

e4b68A2[A:30-215,A:407-491] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: ARG,FAD,GOL,NAP,SO4 ; X-RAY DIFFRACTION 2.30Å

e4b69A2[A:30-215,A:407-490] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ORNITHINE N5 MONOOXYGENASE ; ligands: FAD,GOL,ORN ; X-RAY DIFFRACTION 2.30Å

e5ckuA1[A:24-215,A:407-488] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ornithine N(5)-monooxygenase ; ligands: FAD,NAP,ORN,SO4 ; X-RAY DIFFRACTION 2.100Å

e4d7eD1[D:2-177,D:338-413] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-LYS MONOOXYGENASE ; ligands: FAD ; X-RAY DIFFRACTION 2.40Å

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