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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

X: Thioredoxin-like
H: Major capsid protein gp5
T: Major capsid protein gp5
F: Phage_cap_E

PF03864 CL0373

Representatives:

e3bqwA1[A:5-351] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Putative capsid protein of prophage ; X-RAY DIFFRACTION 2.2Å

e8k3901[0:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3911[1:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3921[2:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3931[3:5-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3941[4:5-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3951[5:5-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3961[6:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k3971[7:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39A1[A:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39B1[B:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39C1[C:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39D1[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39E1[E:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39F1[F:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39G1[G:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39H1[H:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39I1[I:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39J1[J:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39K1[K:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39L1[L:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39M1[M:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39N1[N:5-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39O1[O:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39P1[P:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39Q1[Q:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39R1[R:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39S1[S:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39T1[T:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39g1[g:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8k39h1[h:5-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e6i9eA1[A:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eB1[B:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eC1[C:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eD1[D:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eE1[E:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eF1[F:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6i9eG1[G:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcA1[A:24-397] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcG1[G:23-83,G:104-394] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcB1[B:24-397] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcC1[C:24-397] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcD1[D:24-397] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcE1[E:24-397] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6ibcF1[F:24-396] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hA1[A:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hB1[B:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hC1[C:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hD1[D:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hE1[E:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hF1[F:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6o3hG1[G:1-409] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major head protein ; ELECTRON MICROSCOPY

e6xgpA1[A:4-357] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 major capsid protein ; X-RAY DIFFRACTION 2.6Å

e6xgpB1[B:4-357] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 major capsid protein ; X-RAY DIFFRACTION 2.6Å

e6xgqA1[A:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqB1[B:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqC1[C:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqD1[D:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqE1[E:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqF1[F:2-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e6xgqG1[G:4-217,G:237-354] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSD1_17 ; ELECTRON MICROSCOPY

e7vi9A1[A:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9B1[B:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9C1[C:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9D1[D:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9E1[E:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9F1[F:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vi9G1[G:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaA1[A:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaB1[B:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaC1[C:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaD1[D:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaE1[E:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaF1[F:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viaG1[G:7-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiA1[A:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiB1[B:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiC1[C:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiD1[D:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiE1[E:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiF1[F:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7viiG1[G:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikA1[A:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikB1[B:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikC1[C:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikD1[D:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikE1[E:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikF1[F:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7vikG1[G:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; ELECTRON MICROSCOPY

e7sj5A1[A:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; X-RAY DIFFRACTION 2.695Å

e7sj5B1[B:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; X-RAY DIFFRACTION 2.695Å

e7sj5C1[C:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; X-RAY DIFFRACTION 2.695Å

e7sj5D1[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Major capsid protein ; X-RAY DIFFRACTION 2.695Å

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.

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