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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: Flavodoxin-like
H: Class I glutamine amidotransferase-like
T: Rossmann-like domain in dehydroquinate synthase-like enzymes
F: DHQ_synthase

PF01761 CL0224

Representatives:

e1sg6A2[A:4-183] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PENTAFUNCTIONAL AROM POLYPEPTIDE ; ligands: NAD,ZN ; X-RAY DIFFRACTION 1.7Å

e1nvaA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: ADP,CL,ZN ; X-RAY DIFFRACTION 2.62Å

e1nvbB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CRB,ZN ; X-RAY DIFFRACTION 2.7Å

e1nveB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.58Å

e1nvaB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: ADP,CL,ZN ; X-RAY DIFFRACTION 2.62Å

e1nvfB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: ADP,CL,CRB,ZN ; X-RAY DIFFRACTION 2.8Å

e1dqsB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (3-DEHYDROQUINATE SYNTHASE) ; ligands: CL,CRB,NAD,ZN ; X-RAY DIFFRACTION 1.7Å

e1nr5B2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,NAD,ZN ; X-RAY DIFFRACTION 2.1Å

e1nvfC2[C:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: ADP,CL,CRB,ZN ; X-RAY DIFFRACTION 2.8Å

e1nveD2[D:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.58Å

e1nvdB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,ZN ; X-RAY DIFFRACTION 2.51Å

e1nvdA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,ZN ; X-RAY DIFFRACTION 2.51Å

e1nuaB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,ZN ; X-RAY DIFFRACTION 2.85Å

e1nveC2[C:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.58Å

e1nvbA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,NAD,ZN ; X-RAY DIFFRACTION 2.7Å

e1dqsA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (3-DEHYDROQUINATE SYNTHASE) ; ligands: CL,CRB,NAD,ZN ; X-RAY DIFFRACTION 1.7Å

e1nrxB2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.9Å

e1nveA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.58Å

e1nvfA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: ADP,CL,CRB,ZN ; X-RAY DIFFRACTION 2.8Å

e1nuaA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,ZN ; X-RAY DIFFRACTION 2.85Å

e1nrxA2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,NAD,ZN ; X-RAY DIFFRACTION 2.9Å

e1nr5A2[A:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,NAD,ZN ; X-RAY DIFFRACTION 2.1Å

e1sg6B2[B:4-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PENTAFUNCTIONAL AROM POLYPEPTIDE ; ligands: NAD ; X-RAY DIFFRACTION 1.7Å

e1ujnB2[B:1-161] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DEHYDROQUINATE SYNTHASE ; X-RAY DIFFRACTION 1.8Å

e3clhA1[A:4-163] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD ; X-RAY DIFFRACTION 2.4Å

e3okfA1[A:5-177] Image Pymol Jmol Links: PDB, SCOP, CATH

3-dehydroquinate synthase ; ligands: CL,NAD,PO4 ; X-RAY DIFFRACTION 2.50Å

e3qbdA1[A:6-175] Image Pymol Jmol Links: PDB, SCOP, CATH

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD ; X-RAY DIFFRACTION 2.47Å

e1xagA2[A:1-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,CRB,NAD ; X-RAY DIFFRACTION 2.45Å

e2d2xA1[A:2-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEOXY-SCYLLO-INOSOSE SYNTHASE ; ligands: CO,GOL ; X-RAY DIFFRACTION 2.3Å

e1xaiA2[A:1-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CRB,ZN ; X-RAY DIFFRACTION 2.3Å

e1xaiB2[B:1-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: CRB,ZN ; X-RAY DIFFRACTION 2.3Å

e2d2xB2[B:2-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEOXY-SCYLLO-INOSOSE SYNTHASE ; ligands: CO,GOL ; X-RAY DIFFRACTION 2.3Å

e2gruA2[A:2-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEOXY-SCYLLO-INOSOSE SYNTHASE ; ligands: CAK,CO,EXO,MPD,NAD,PO4 ; X-RAY DIFFRACTION 2.15Å

e2gruB2[B:2-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEOXY-SCYLLO-INOSOSE SYNTHASE ; ligands: CAK,CO,NAD,PO4 ; X-RAY DIFFRACTION 2.15Å

e3clhB2[B:4-163] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD ; X-RAY DIFFRACTION 2.4Å

e3okfB2[B:5-177] Image Pymol Jmol Links: PDB, SCOP, CATH

3-dehydroquinate synthase ; ligands: CL,NAD,PO4 ; X-RAY DIFFRACTION 2.50Å

e3zokA1[A:13-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: GLY,NAD,PEG,PGE,PO4 ; X-RAY DIFFRACTION 2.40Å

e3zokB2[B:13-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: 2PE,GLY,NAD,PEG,PO4 ; X-RAY DIFFRACTION 2.40Å

e3zokC2[C:13-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: GLY,NAD,PEG,PO4 ; X-RAY DIFFRACTION 2.40Å

e3zokD2[D:13-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: 2PE,GLY,NAD,PEG,PG4,PO4 ; X-RAY DIFFRACTION 2.40Å

e3qbdB3[B:6-175] Image Pymol Jmol Links: PDB, SCOP, CATH

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD ; X-RAY DIFFRACTION 2.47Å

e3qbeA3[A:6-175] Image Pymol Jmol Links: PDB, SCOP, CATH

3-DEHYDROQUINATE SYNTHASE ; ligands: CL,ZN ; X-RAY DIFFRACTION 2.07Å

e1xahB3[B:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD,ZN ; X-RAY DIFFRACTION 2.2Å

e1xajA3[A:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CRB,NAD,ZN ; X-RAY DIFFRACTION 2.35Å

e1xajB3[B:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CRB,NAD,ZN ; X-RAY DIFFRACTION 2.35Å

e1xalA3[A:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CRB,NAD ; X-RAY DIFFRACTION 2.80Å

e1xalB3[B:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CRB,NAD ; X-RAY DIFFRACTION 2.80Å

e1xahA3[A:1-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-DEHYDROQUINATE SYNTHASE ; ligands: NAD,ZN ; X-RAY DIFFRACTION 2.2Å

e4p53A2[A:26-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cyclase ; ligands: NAI,ZN ; X-RAY DIFFRACTION 2.10Å

e5eksA2[A:0-172] Image Pymol Jmol Links: PDB, SCOP, CATH

3-dehydroquinate synthase ; ligands: MG,NAD ; X-RAY DIFFRACTION 1.850Å

e5eksB1[B:-1-172] Image Pymol Jmol Links: PDB, SCOP, CATH

3-dehydroquinate synthase ; ligands: MG,NAD ; X-RAY DIFFRACTION 1.850Å

e5hvnA2[A:-2-173] Image Pymol Jmol Links: PDB, SCOP, CATH

3-dehydroquinate synthase ; ligands: NAD ; X-RAY DIFFRACTION 3.00Å

e5tprA2[A:3-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: GOL,NAD,SO4,ZN ; X-RAY DIFFRACTION 1.70Å

e5tprB1[B:3-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: GOL,NAD,PEG,SO4,ZN ; X-RAY DIFFRACTION 1.70Å

e6c5cA1[A:-2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CL,EDO,NAD ; X-RAY DIFFRACTION 1.85Å

e6c5cB2[B:-2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: CL,EDO,NAD ; X-RAY DIFFRACTION 1.85Å

e6llaB2[B:0-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: EDO,MG,NAD ; X-RAY DIFFRACTION 1.87Å

e6lk2A2[A:0-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: 7LH,EDO,MG,NAD ; X-RAY DIFFRACTION 2.500Å

e6lk2B2[B:0-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: 7LH,EDO,MG,NAD,PEG ; X-RAY DIFFRACTION 2.500Å

e6lk2C2[C:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: 7LH,MG,NAD ; X-RAY DIFFRACTION 2.500Å

e6lk2D1[D:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: 7LH,MG,NAD ; X-RAY DIFFRACTION 2.500Å

e6llaA1[A:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: EDO,MG,NAD,PEG ; X-RAY DIFFRACTION 1.87Å

e6llaC2[C:0-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: EDO,MG,NAD,PEG ; X-RAY DIFFRACTION 1.87Å

e6llaD2[D:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-dehydroquinate synthase ; ligands: EDO,MG,NAD ; X-RAY DIFFRACTION 1.87Å

e6hqvA3[A:15-190] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ligands: GLU,NAD,PO4,ZN ; X-RAY DIFFRACTION 3.00Å

e6hqvB3[B:15-190] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ligands: GLU,NAD,PO4,ZN ; X-RAY DIFFRACTION 3.00Å

e7u5sA5[A:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ELECTRON MICROSCOPY

e7u5sB5[B:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ELECTRON MICROSCOPY

e7u5tA3[A:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ELECTRON MICROSCOPY

e7u5tB3[B:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pentafunctional AROM polypeptide ; ELECTRON MICROSCOPY

e1ujnA2[A:1-162] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DEHYDROQUINATE SYNTHASE ; X-RAY DIFFRACTION 1.8Å

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