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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

X: Immunoglobulin-like beta-sandwich
H: Immunoglobulin-related
T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like
F: NEAT

PF05031 CL0159

Representatives:

e2o6pA1[A:29-150] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein C ; ligands: CL,HEM,ZN ; X-RAY DIFFRACTION 1.5Å

e7xldA1[A:544-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: NA ; X-RAY DIFFRACTION 1.65Å

e7xliA1[A:342-451] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: CL ; X-RAY DIFFRACTION 1.70Å

e5d1xE1[E:341-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; X-RAY DIFFRACTION 3.21Å

e5d1qE1[E:339-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; X-RAY DIFFRACTION 3.22Å

e2o6pB1[B:29-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein C ; ligands: CL,HEM,ZN ; X-RAY DIFFRACTION 1.5Å

e2iteB1[B:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: NHE ; X-RAY DIFFRACTION 1.500Å

e2itfD1[D:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: HEM ; X-RAY DIFFRACTION 1.900Å

e2itfC1[C:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: HEM ; X-RAY DIFFRACTION 1.900Å

e2itfA1[A:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: HEM ; X-RAY DIFFRACTION 1.900Å

e2o1aA1[A:18-138] Image Pymol Jmol Links: PDB, SCOP, CATH

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: EDO,SO4 ; X-RAY DIFFRACTION 1.6Å

e2itfB1[B:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: HEM ; X-RAY DIFFRACTION 1.900Å

e3qugA1[A:543-656] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; ligands: GIX,GOL,SO4 ; X-RAY DIFFRACTION 1.7Å

e3rtlA1[A:339-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.453Å

e3ovuB1[B:84-227] Image Pymol Jmol Links: PDB, SCOP, CATH

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 2.830Å

e3sz6A1[A:31-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved domain protein ; ligands: CL ; X-RAY DIFFRACTION 1.8Å

e3sikA1[A:21-152] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved domain protein ; ligands: HEM ; X-RAY DIFFRACTION 2.149Å

e2k78A1[A:25-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein C ; ligands: ZNH ; SOLUTION NMR

e2e7dA1[A:9-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hypothetical protein IsdH ; ligands: ACT,GOL,SO4 ; X-RAY DIFFRACTION 2.20Å

e3qzlA1[A:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: GOL,HEM ; X-RAY DIFFRACTION 1.300Å

e4h8qA1[A:5-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON TRANSPORT-ASSOCIATED DOMAIN PROTEIN ; ligands: HEM,ZN ; X-RAY DIFFRACTION 1.7Å

e2e7dB1[B:11-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hypothetical protein IsdH ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.20Å

e2z6fA1[A:544-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e3qzmA1[A:61-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: GOL,HEM,SO4 ; X-RAY DIFFRACTION 1.250Å

e3qzmB1[B:62-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: GOL,HEM,SO4 ; X-RAY DIFFRACTION 1.250Å

e3qznA1[A:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: GOL,HEM,SO4 ; X-RAY DIFFRACTION 2.0Å

e3qznB1[B:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 2.0Å

e3qznC1[C:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 2.0Å

e3qzoA1[A:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: HEM ; X-RAY DIFFRACTION 1.95Å

e3qzoB1[B:64-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: HEM ; X-RAY DIFFRACTION 1.95Å

e3qzoC1[C:62-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: GOL,HEM ; X-RAY DIFFRACTION 1.95Å

e3qzoD1[D:61-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: GOL,HEM ; X-RAY DIFFRACTION 1.95Å

e3qzpA1[A:61-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: COH,GOL,SO4 ; X-RAY DIFFRACTION 1.9Å

e3qzpB1[B:60-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN A ; ligands: COH,GOL,SO4 ; X-RAY DIFFRACTION 1.9Å

e3szkF1[F:89-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; X-RAY DIFFRACTION 3.01Å

e3szkC1[C:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; X-RAY DIFFRACTION 3.01Å

e3qugB1[B:543-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; ligands: GIX,GOL,SO4 ; X-RAY DIFFRACTION 1.7Å

e3quhA1[A:544-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; ligands: GOL,MNR ; X-RAY DIFFRACTION 2.7Å

e3quhB1[B:544-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

IRON-REGULATED SURFACE DETERMINANT PROTEIN H ; ligands: GOL,MNR ; X-RAY DIFFRACTION 2.7Å

e3rtlB1[B:339-458] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.453Å

e3rtlC1[C:339-458] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.453Å

e3rtlD1[D:339-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: CL,HEM,MG ; X-RAY DIFFRACTION 1.453Å

e3rurA1[A:341-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.700Å

e3rurB1[B:339-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.700Å

e3rurC1[C:340-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.700Å

e3rurD1[D:340-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM,MG ; X-RAY DIFFRACTION 1.700Å

e3sz6B1[B:26-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved domain protein ; ligands: CL,GOL ; X-RAY DIFFRACTION 1.8Å

e3sikB1[B:21-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved domain protein ; ligands: HEM ; X-RAY DIFFRACTION 2.149Å

e4h8pA1[A:-5-112] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron Transport-associated domain protein ; ligands: HEM,ZN ; X-RAY DIFFRACTION 2.05Å

e3vtmA1[A:543-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: 3ZZ,GOL ; X-RAY DIFFRACTION 2.800Å

e4fc3E1[E:1-144] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 2.260Å

e3vtmB1[B:543-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: 3ZZ,GOL ; X-RAY DIFFRACTION 2.800Å

e3vuaA1[A:543-657] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: ACT,GOL,SO4 ; X-RAY DIFFRACTION 1.850Å

e3vuaB1[B:543-656] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: GOL ; X-RAY DIFFRACTION 1.850Å

e3vuaC1[C:543-656] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: ACT,GOL,SO4 ; X-RAY DIFFRACTION 1.850Å

e3vuaD1[D:543-656] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: GOL ; X-RAY DIFFRACTION 1.850Å

e3vuaE1[E:543-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 1.850Å

e3vuaF1[F:543-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 1.850Å

e4ij2E1[E:326-464] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 4.240Å

e4ij2H1[H:326-464] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 4.240Å

e4ij2E2[E:544-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: HEM ; X-RAY DIFFRACTION 4.240Å

e3s48A2[A:87-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.05Å

e3s48B2[B:87-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.05Å

e2moqA1[A:125-272] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; SOLUTION NMR

e4ij2G3[G:542-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: HEM ; X-RAY DIFFRACTION 4.240Å

e4ij2G2[G:326-464] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 4.240Å

e4nlaA1[A:182-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: SO4 ; X-RAY DIFFRACTION 2.700Å

e4mypA1[A:183-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: GOL,HEM,ZN ; X-RAY DIFFRACTION 1.800Å

e4mypB1[B:187-303] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; ligands: GOL,HEM,ZN ; X-RAY DIFFRACTION 1.800Å

e4wjgD1[D:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4wjgI1[I:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4wjgN1[N:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4wjgS1[S:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4wjgX1[X:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4wjg31[3:86-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 3.1Å

e4xs0C3[C:523-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 2.550Å

e4xs0C1[C:326-464] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: CL ; X-RAY DIFFRACTION 2.550Å

e4ympC1[C:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH

Internalin ; ligands: HEM ; X-RAY DIFFRACTION 3.15Å

e4ympA1[A:10-128] Image Pymol Jmol Links: PDB, SCOP, CATH

Internalin ; ligands: HEM ; X-RAY DIFFRACTION 3.15Å

e5d1zI1[I:119-267] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; X-RAY DIFFRACTION 3.17Å

e5d1zJ1[J:119-267] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; X-RAY DIFFRACTION 3.17Å

e5vmmE2[E:332-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; ligands: HEM ; X-RAY DIFFRACTION 3.600Å

e5vmmE1[E:125-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; X-RAY DIFFRACTION 3.600Å

e5vmmH1[H:125-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; X-RAY DIFFRACTION 3.600Å

e5vmmJ1[J:131-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; X-RAY DIFFRACTION 3.600Å

e5vmmF2[F:332-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; ligands: HEM ; X-RAY DIFFRACTION 3.600Å

e5vmmF3[F:127-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated cell wall-anchored protein ; X-RAY DIFFRACTION 3.600Å

e6tb2D1[D:534-655] Image Pymol Jmol Links: PDB, SCOP, CATH

Cell wall surface anchor family protein ; ligands: HEM ; X-RAY DIFFRACTION 2.9Å

e6tb2E3[E:534-655] Image Pymol Jmol Links: PDB, SCOP, CATH

Cell wall surface anchor family protein ; ligands: HEM ; X-RAY DIFFRACTION 2.9Å

e6tb2D3[D:323-469] Image Pymol Jmol Links: PDB, SCOP, CATH

Cell wall surface anchor family protein ; X-RAY DIFFRACTION 2.9Å

e6tb2E2[E:323-469] Image Pymol Jmol Links: PDB, SCOP, CATH

Cell wall surface anchor family protein ; X-RAY DIFFRACTION 2.9Å

e6p9hB1[B:340-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated heme-iron binding protein ; X-RAY DIFFRACTION 3.00Å

e6p9hA1[A:340-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated heme-iron binding protein ; X-RAY DIFFRACTION 3.00Å

e7pcfE3[E:332-463] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM ; ELECTRON MICROSCOPY

e7pcfF1[F:332-464] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM ; ELECTRON MICROSCOPY

e7pchE2[E:332-463] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM ; ELECTRON MICROSCOPY

e7pchF2[F:332-463] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM ; ELECTRON MICROSCOPY

e7pcqE2[E:332-460] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ligands: HEM ; ELECTRON MICROSCOPY

e7pcfE1[E:124-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ELECTRON MICROSCOPY

e7pcfF2[F:124-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ELECTRON MICROSCOPY

e7pchE3[E:124-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ELECTRON MICROSCOPY

e7pchF1[F:124-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ELECTRON MICROSCOPY

e7pcqE1[E:124-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein B ; ELECTRON MICROSCOPY

e7w81A1[A:523-656] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: HEM ; X-RAY DIFFRACTION 1.8Å

e7w81B1[B:523-655] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; ligands: HEM ; X-RAY DIFFRACTION 1.8Å

e2iteA1[A:64-184] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein A ; X-RAY DIFFRACTION 1.500Å

e4ij2F1[F:326-464] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 4.240Å

e4ij2F3[F:544-655] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iron-regulated surface determinant protein H ; X-RAY DIFFRACTION 4.240Å

e2h3kA1[A:1-144] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Haptoglobin-binding surface anchored protein ; SOLUTION NMR

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.

X: Glycosyl hydrolase domain-like

some similarity with Ig fold

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