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

X: Pentein

X: Prenyltransferase-like

X: beta-hairpin-alpha-hairpin repeat

X: CBS-domain

X: Creatinase/aminopeptidase-like

X: Lipoprotein-associated type-17-domain

X: GnsA

X: Phage T4 gp12 N-terminal repeating units

X: Polypeptide transport-associated (POTRA) domain

X: Pepsin inhibitor-3

X: CheC-like

X: YdfO-like

X: Smc hinge domain

X: ADC synthase

X: Probable bacterial effector-binding domain

X: Arterivirus nucleocapsid protein

X: MinE-like

both are dimers, but slightly different dimerization mode

X: NinB

X: YopT-like

X: BLRF2-like

X: Cell division protein ZapA-like

X: gp11/gp12 receptor-binding domain

X: SSH domain in siroheme synthase middle domains-like

X: NSP3 homodimer

X: TTHA1013/TTHA0281-like

X: YefM-like

X: Hypothetical protein YoaG

X: Phosphoprotein oligomerization domain-like

X: AF2331-like

X: TTHC002-like

X: Yonk-like

X: a+b domain in cullin-like proteins

X: Heme iron utilization protein-like

X: Outer membrane efflux proteins (OEP)

X: OmpH-like

X: small terminase oligomerization domain

X: Dimerization domain of heterocyst differentiation protein HetR

X: Putative pyruvate dehydrogenase

X: Dimerization domain of Lsr2

X: Vacuolar protein sorting-associated protein 30 BARA domain

X: ParB dimerization domain

X: protein of unknown function (eca1910)

X: MPER trimer

H: MPER trimer

T: MPER trimer

F: Fibritin_C

PF07921

Representatives:

e4ncuA1[A:1-27] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; X-RAY DIFFRACTION 1.1Å

e4ncvA1[A:0-27] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; X-RAY DIFFRACTION 1.2Å

Domain assembly:

e2lp7A1[A:1-59] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7B1[B:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7C1[C:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2m7wB1[B:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN ; SOLUTION NMR

e2m7wC1[C:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN ; SOLUTION NMR

e4ncvB1[B:0-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; X-RAY DIFFRACTION 1.2Å

e4ncvC1[C:1-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; X-RAY DIFFRACTION 1.2Å

e4ncwA1[A:3-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; ligands: 2KN ; X-RAY DIFFRACTION 1.3Å

e4ncwB1[B:4-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; ligands: 2KN ; X-RAY DIFFRACTION 1.3Å

e4ncwC1[C:4-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fibritin ; ligands: 2KN ; X-RAY DIFFRACTION 1.3Å

e2ww6B1[B:1-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FIBRITIN ; X-RAY DIFFRACTION 0.98Å

e2ww6C1[C:1-27] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FIBRITIN ; ligands: PG4 ; X-RAY DIFFRACTION 0.98Å

e1v1iA2[A:457-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FIBRITIN, FIBER PROTEIN ; X-RAY DIFFRACTION 1.900Å

e1v1iB2[B:457-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FIBRITIN, FIBER PROTEIN ; X-RAY DIFFRACTION 1.900Å

e1v1iC2[C:457-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FIBRITIN, FIBER PROTEIN ; X-RAY DIFFRACTION 1.900Å

e5tpnA2[A:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH

Fusion glycoprotein F0,Fibritin ; X-RAY DIFFRACTION 3.1Å

e5tojA2[A:516-547] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.300Å

e5tojB3[B:516-549] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.300Å

e5tojC2[C:516-545] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.300Å

e5tokA2[A:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.800Å

e5tokB3[B:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.800Å

e5tokC2[C:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0, Fibritin chimera ; X-RAY DIFFRACTION 3.800Å

e5tdgA3[A:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0,Fibritin ; X-RAY DIFFRACTION 2.6500Å

e5tdgB2[B:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0,Fibritin ; X-RAY DIFFRACTION 2.6500Å

e5tdgC2[C:516-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0,Fibritin ; X-RAY DIFFRACTION 2.6500Å

e5nvpA1[A:1-35] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Envelope glycoprotein,Gp41 ; SOLUTION NMR

e5nwuA1[A:1-35] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

wtFP-tag,Gp41 ; SOLUTION NMR

e5nwvA1[A:1-35] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

scrFP-tag,Gp41 ; SOLUTION NMR

e5nwwA1[A:1-35] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

scrFP-tag,Gp41 ; SOLUTION NMR

e6ousF3[F:518-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e6ousB3[B:518-543] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e6ousD3[D:518-543] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e6ousH3[H:518-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e6ousJ3[J:518-541] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e6ousL3[L:518-544] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F1 fused with Fibritin trimerization domain ; X-RAY DIFFRACTION 3.400Å

e7lvwA1[A:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

e7lvwB1[B:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

e7lvwC1[C:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

e7lvwD2[D:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

e7lvwE1[E:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

e7lvwF1[F:516-552] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion glycoprotein F0 ; X-RAY DIFFRACTION 2.1Å

Domain assembly:

e2lp7B1[B:1-59] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7A1[A:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7C1[C:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

Domain assembly:

e2lp7C1[C:1-59] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7A1[A:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2lp7B1[B:1-59] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN , SOLUTION NMR

e2m7wA1[A:1-59] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENVELOPE GLYCOPROTEIN ; SOLUTION NMR

F: YadA_stalk

PF05662

F: GP41

PF00517

F: GP120,GP41

PF00516 PF00517

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: Envelope glycoprotein GP2-related

X: Borealin C-terminal dimerization domain

X: Dimerization domain of lysinoalanine synthase, DurN

X: LUBAC-tethering domain

X: AbrB C-terminal 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

special