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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: Periplasmic binding protein-like I
F: Peripla_BP_1

PF00532 CL0144

Representatives:

e1dbqA3[A:60-161,A:293-341] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE REPRESSOR ; ligands: MG ; X-RAY DIFFRACTION 2.2Å

e3huuD3[D:19-126,D:248-294] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator like protein ; X-RAY DIFFRACTION 1.95Å

e3mizB3[B:59-159,B:298-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative transcriptional regulator protein, LacI family ; X-RAY DIFFRACTION 1.91Å

e3ctpB3[B:60-154,B:285-325] Image Pymol Jmol Links: PDB, SCOP, CATH

Periplasmic binding protein/LacI transcriptional regulator ; ligands: XLF ; X-RAY DIFFRACTION 1.41Å

e3huuC3[C:19-126,C:248-295] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator like protein ; X-RAY DIFFRACTION 1.95Å

e3ctpA3[A:60-154,A:285-325] Image Pymol Jmol Links: PDB, SCOP, CATH

Periplasmic binding protein/LacI transcriptional regulator ; ligands: XLF ; X-RAY DIFFRACTION 1.41Å

e3huuA3[A:19-126,A:248-295] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator like protein ; X-RAY DIFFRACTION 1.95Å

e3huuB3[B:22-126,B:248-296] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator like protein ; X-RAY DIFFRACTION 1.95Å

e1dbqB1[B:60-161,B:293-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE REPRESSOR ; ligands: MG ; X-RAY DIFFRACTION 2.2Å

e1jhzA1[A:60-161,A:293-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: MG ; X-RAY DIFFRACTION 2.4Å

e3brqA3[A:17-119,A:252-291] Image Pymol Jmol Links: PDB, SCOP, CATH

HTH-TYPE TRANSCRIPTIONAL REGULATOR ASCG ; ligands: FRU,SO4 ; X-RAY DIFFRACTION 2.0Å

e3brqB1[B:17-119,B:252-293] Image Pymol Jmol Links: PDB, SCOP, CATH

HTH-TYPE TRANSCRIPTIONAL REGULATOR ASCG ; ligands: NA,SO4 ; X-RAY DIFFRACTION 2.0Å

e1jhzB3[B:60-161,B:293-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: MG ; X-RAY DIFFRACTION 2.4Å

e3hcwA1[A:56-167,A:298-320] Image Pymol Jmol Links: PDB, SCOP, CATH

Maltose operon transcriptional repressor ; ligands: GOL ; X-RAY DIFFRACTION 1.900Å

e3e3mA3[A:69-167,A:303-346] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 1.600Å

e3e3mB1[B:69-167,B:303-346] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 1.600Å

e3hcwB1[B:56-167,B:298-340] Image Pymol Jmol Links: PDB, SCOP, CATH

Maltose operon transcriptional repressor ; ligands: GOL ; X-RAY DIFFRACTION 1.900Å

e3o74B1[B:60-163,B:286-330] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FRUCTOSE TRANSPORT SYSTEM REPRESSOR FRUR ; ligands: GOL ; X-RAY DIFFRACTION 2.0Å

e3e3mC1[C:69-167,C:303-346] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 1.600Å

e3o74A1[A:60-163,A:286-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FRUCTOSE TRANSPORT SYSTEM REPRESSOR FRUR ; ligands: GOL ; X-RAY DIFFRACTION 2.0Å

e3e3mD3[D:69-167,D:303-346] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 1.600Å

e3o75A1[A:60-161,A:292-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FRUCTOSE TRANSPORT SYSTEM REPRESSOR FRUR ; ligands: F1X ; X-RAY DIFFRACTION 2.3Å

e3hs3A3[A:57-155,A:281-295] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose operon repressor ; X-RAY DIFFRACTION 1.6Å

e3o75B1[B:60-161,B:292-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FRUCTOSE TRANSPORT SYSTEM REPRESSOR FRUR ; ligands: F1X ; X-RAY DIFFRACTION 2.3Å

e3hs3B3[B:57-155,B:281-295] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose operon repressor ; X-RAY DIFFRACTION 1.6Å

e3dbiA2[A:60-163,A:296-337] Image Pymol Jmol Links: PDB, SCOP, CATH

SUGAR-BINDING TRANSCRIPTIONAL REGULATOR, LACI FAMILY ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 2.450Å

e3clkA2[A:61-160,A:292-302] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator ; ligands: GOL ; X-RAY DIFFRACTION 2.08Å

e3dbiB1[B:59-163,B:296-336] Image Pymol Jmol Links: PDB, SCOP, CATH

SUGAR-BINDING TRANSCRIPTIONAL REGULATOR, LACI FAMILY ; ligands: PO4 ; X-RAY DIFFRACTION 2.450Å

e3clkB1[B:64-160,B:292-334] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcription regulator ; X-RAY DIFFRACTION 2.08Å

e1jftA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: HPA ; X-RAY DIFFRACTION 2.5Å

e3dbiC1[C:60-163,C:296-336] Image Pymol Jmol Links: PDB, SCOP, CATH

SUGAR-BINDING TRANSCRIPTIONAL REGULATOR, LACI FAMILY ; ligands: PO4 ; X-RAY DIFFRACTION 2.450Å

e5yszA2[A:62-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcriptional regulator, LacI family ; ligands: CBI,GOL ; X-RAY DIFFRACTION 1.630Å

e3egcA1[A:66-167,A:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e7cdvA1[A:73-178,A:311-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 2.100Å

e3egcB1[B:66-167,B:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e3egcC3[C:66-167,C:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e7cdvB1[B:74-178,B:311-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 2.100Å

e7cdxA1[A:75-178,A:311-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 2.1Å

e3egcD1[D:66-167,D:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e7cdxB1[B:77-178,B:311-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 2.1Å

e3egcE1[E:66-167,E:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e3egcF1[F:66-167,F:299-333] Image Pymol Jmol Links: PDB, SCOP, CATH

putative ribose operon repressor ; X-RAY DIFFRACTION 2.350Å

e7ce1S1[S:73-178,S:311-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e3jy6A1[A:65-167,A:295-329] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 1.970Å

e7ce1A3[A:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e7ce1B3[B:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e3jy6D2[D:68-167,D:295-329] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; ligands: EDO ; X-RAY DIFFRACTION 1.970Å

e4rk0A2[A:69-170,A:294-336] Image Pymol Jmol Links: PDB, SCOP, CATH

LacI family sugar-binding transcriptional regulator ; ligands: RIB ; X-RAY DIFFRACTION 1.800Å

e7ce1C3[C:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e7ce1D2[D:74-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e4rk0B1[B:70-170,B:294-336] Image Pymol Jmol Links: PDB, SCOP, CATH

LacI family sugar-binding transcriptional regulator ; ligands: RIB ; X-RAY DIFFRACTION 1.800Å

e7ce1G1[G:74-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e4rk0C1[C:69-170,C:294-336] Image Pymol Jmol Links: PDB, SCOP, CATH

LacI family sugar-binding transcriptional regulator ; ligands: RIB ; X-RAY DIFFRACTION 1.800Å

e4rk0D3[D:68-170,D:294-336] Image Pymol Jmol Links: PDB, SCOP, CATH

LacI family sugar-binding transcriptional regulator ; ligands: RIB ; X-RAY DIFFRACTION 1.800Å

e7ce1H2[H:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e3e61A1[A:61-155,A:282-320,A:323-328] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative transcriptional repressor of ribose operon ; ligands: GOL ; X-RAY DIFFRACTION 2.000Å

e7ce1K2[K:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e7ce1L2[L:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e3e61B2[B:61-155,B:282-320] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative transcriptional repressor of ribose operon ; ligands: GOL ; X-RAY DIFFRACTION 2.000Å

e2o20A1[A:62-162,A:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; ligands: SO4 ; X-RAY DIFFRACTION 1.900Å

e7ce1O1[O:74-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e7ce1P3[P:75-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e2o20C1[C:63-162,C:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; X-RAY DIFFRACTION 1.900Å

e7ce1T1[T:74-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LacI-type transcription factor ; X-RAY DIFFRACTION 3.2Å

e2o20D3[D:63-162,D:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; X-RAY DIFFRACTION 1.900Å

e2o20B1[B:58-162,B:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; ligands: SO4 ; X-RAY DIFFRACTION 1.900Å

e2o20E1[E:62-162,E:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; ligands: CL ; X-RAY DIFFRACTION 1.900Å

e2o20F3[F:61-162,F:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; X-RAY DIFFRACTION 1.900Å

e2o20G3[G:62-162,G:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; ligands: SO4 ; X-RAY DIFFRACTION 1.900Å

e2o20H1[H:61-162,H:293-332] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite control protein A ; X-RAY DIFFRACTION 1.900Å

e4rk1A2[A:67-166,A:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: CL,RIB ; X-RAY DIFFRACTION 1.900Å

e4rk1B2[B:67-166,B:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: CL,RIB ; X-RAY DIFFRACTION 1.900Å

e4rk1C2[C:67-166,C:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: CL,RIB ; X-RAY DIFFRACTION 1.900Å

e4rk1D2[D:67-166,D:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: CL,RIB ; X-RAY DIFFRACTION 1.900Å

e4rk1E2[E:67-166,E:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: RIB ; X-RAY DIFFRACTION 1.900Å

e4rk1F2[F:67-166,F:297-339] Image Pymol Jmol Links: PDB, SCOP, CATH

Ribose transcriptional regulator ; ligands: CL,RIB ; X-RAY DIFFRACTION 1.900Å

e2puaA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PURINE REPRESSOR ; ligands: 6MP ; X-RAY DIFFRACTION 2.900Å

e2pubA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PURINE REPRESSOR ; ligands: ADE ; X-RAY DIFFRACTION 2.700Å

e2pucA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROTEIN (PURINE REPRESSOR) ; ligands: GUN ; X-RAY DIFFRACTION 2.600Å

e2pudA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.600Å

e2pueA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE REPRESSOR ) ; ligands: ADE ; X-RAY DIFFRACTION 2.700Å

e2pufA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE REPRESSOR) ; ligands: GUN ; X-RAY DIFFRACTION 3.000Å

e2pugA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.700Å

e1jh9A5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: HPA,PO4 ; X-RAY DIFFRACTION 2.55Å

e1bdhA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION

e1bdiA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 3.0Å

e1jfsA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: HPA ; X-RAY DIFFRACTION 2.9Å

e1pnrA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION

e1qp0A5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE NUCLEOTIDE SYNTHESIS REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.9Å

e1qp4A5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE NUCLEOTIDE SYNTHESIS REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 3.0Å

e1qp7A5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE NUCLEOTIDE SYNTHESIS REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.9Å

e1qpzA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE NUCLEOTIDE SYNTHESIS REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.5Å

e1qqaA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE NUCLEOTIDE SYNTHESIS REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 3.00Å

e1qqbA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE NUCLEOTIDE SYNTHESIS REPRESSOR ; ligands: HPA ; X-RAY DIFFRACTION 2.7Å

e1vpwA5[A:56-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PURINE REPRESSOR ; ligands: HPA ; X-RAY DIFFRACTION 2.700Å

e1wetA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PURINE REPRESSOR) ; ligands: GUN ; X-RAY DIFFRACTION 2.500Å

e1zayA5[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN (PURINE REPRESSOR) ; ligands: HPA ; X-RAY DIFFRACTION 2.7Å

e6chkA1[A:59-160,A:289-333] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcriptional regulator, LacI family ; ligands: CL,TRS ; X-RAY DIFFRACTION 1.800Å

e6ndiA2[A:59-159,A:297-331] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator ; X-RAY DIFFRACTION 2.60Å

e6ndiB1[B:61-159,B:297-331] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator ; X-RAY DIFFRACTION 2.60Å

e2iksB1[B:60-161,B:292-333] Image Pymol Jmol Links: PDB, SCOP, CATH

DNA-BINDING TRANSCRIPTIONAL DUAL REGULATOR ; X-RAY DIFFRACTION 1.85Å

e7doaA2[A:60-159] Image Pymol Jmol Links: PDB, SCOP, CATH

Catabolite repressor/activator ; ligands: EPE ; X-RAY DIFFRACTION 2.7Å

e7doaB2[B:60-159] Image Pymol Jmol Links: PDB, SCOP, CATH

Catabolite repressor/activator ; ligands: EPE,GOL ; X-RAY DIFFRACTION 2.7Å

e7dobA2[A:57-159] Image Pymol Jmol Links: PDB, SCOP, CATH

Catabolite repressor/activator ; ligands: EDO,PO4 ; X-RAY DIFFRACTION 2.4Å

e7ff4B2[B:60-161,B:295-337] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 2.19Å

e7ff4C1[C:59-161,C:295-337] Image Pymol Jmol Links: PDB, SCOP, CATH

Transcriptional regulator, LacI family ; X-RAY DIFFRACTION 2.19Å

e7x7hA1[A:60-163,A:285-326] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite repressor/activator ; ligands: CA ; X-RAY DIFFRACTION 2.00Å

e7x7hC2[C:60-163,C:285-326] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Catabolite repressor/activator ; ligands: CA ; X-RAY DIFFRACTION 2.00Å

e3o1hB1[B:30-138,B:272-329] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Periplasmic protein TorT ; ligands: TMO ; X-RAY DIFFRACTION 3.1Å

e3o1hB2[B:139-271] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Periplasmic protein TorT ; X-RAY DIFFRACTION 3.1Å

e8abpA1[A:110-254] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ARABINOSE-BINDING PROTEIN ; X-RAY DIFFRACTION

e8abpA3[A:2-109,A:255-306] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-ARABINOSE-BINDING PROTEIN ; X-RAY DIFFRACTION

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