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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

X: cradle loop barrel

Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365

X: OB-fold
H: Nucleic acid-binding proteins
T: Nucleic acid-binding proteins

54123, 3-crossover-4

F: S1

PF00575 CL0021

Representatives:

e1go3E1[E:79-184] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT E ; X-RAY DIFFRACTION 1.750Å

e1luzA1[A:4-88] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN K3 ; X-RAY DIFFRACTION 1.8Å

e1kl9A1[A:3-88] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EUKARYOTIC TRANSLATION INITIATION FACTOR 2 SUBUNIT 1 ; ligands: ZN ; X-RAY DIFFRACTION 1.90Å

e1hh2P1[P:127-198] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

N UTILIZATION SUBSTANCE PROTEIN A ; X-RAY DIFFRACTION 2.1Å

e3bzkA1[A:637-730] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tex ; X-RAY DIFFRACTION 2.30Å

e4nnhB1[B:278-445] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; X-RAY DIFFRACTION 2.30Å

e2ix0A3[A:558-644] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EXORIBONUCLEASE 2 ; X-RAY DIFFRACTION 2.440Å

e2bx2L1[L:35-118] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBONUCLEASE E ; X-RAY DIFFRACTION 2.85Å

e2ahoB1[B:1-84] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor 2 alpha subunit ; X-RAY DIFFRACTION 3.0Å

e1sroA1[A:1-76] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PNPASE ; SOLUTION NMR

e1wi5A1[A:179-297] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

RRP5 protein homolog ; SOLUTION NMR

e1y14B1[B:81-171] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II 19 kDa polypeptide ; X-RAY DIFFRACTION

e6qg1L3[L:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg1K2[K:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg2K2[K:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg2L2[L:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg3K3[K:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg3L2[L:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg5K2[K:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg5L3[L:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg6K3[K:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6qg6L3[L:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6k71K2[K:7-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6k72K2[K:7-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6gsmj1[j:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e2b63G1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II 19 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.8Å

e4by1G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB7 ; X-RAY DIFFRACTION 3.60Å

e5ip7G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; X-RAY DIFFRACTION 3.520Å

e5ip9G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; X-RAY DIFFRACTION 3.450Å

e5svaG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e5u5qG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; X-RAY DIFFRACTION 3.80Å

e5vvrG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e5vvsG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e5oqjG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e5oqmG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e6gykG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e6gylG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e6gymG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e6i84G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e6sw993[9:2-84] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6swc91[9:1-84] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6yalA2[A:6-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6yamA1[A:6-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eukaryotic translation initiation factor 2 subunit alpha ; ELECTRON MICROSCOPY

e6yanA1[A:6-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6kf3E2[E:79-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase, subunit E ; ELECTRON MICROSCOPY

e6kf4E1[E:79-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase, subunit E ; ELECTRON MICROSCOPY

e6kf9E1[E:79-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase, subunit E ; ELECTRON MICROSCOPY

e6zp4O1[O:3-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6tedG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit G ; ELECTRON MICROSCOPY

e6vu3H3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyqH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyrH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vysH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vytH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyuH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vywH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyxH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyyH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyzH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz2H3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz3H3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz5H3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz7H3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vzjH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x6tH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7fH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7kH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x9qH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdqH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdrH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xgfH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xiiH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xijH3[H:3-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vu3H2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyqH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyrH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vysH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vytH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyuH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vywH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyxH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyyH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyzH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz2H2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz3H2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz5H2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz7H2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vzjH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x6tH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7fH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7kH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x9qH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdqH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdrH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xgfH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xiiH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xijH2[H:267-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vu3H1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyqH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyrH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vysH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vytH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyuH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vywH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyxH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyyH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vyzH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz2H1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz3H1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz5H1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vz7H1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6vzjH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x6tH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7fH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x7kH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6x9qH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdqH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xdrH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xgfH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xiiH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6xijH1[H:87-176,H:264-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e7a09O1[O:3-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6ztjAY1[AY:3-91] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e6ybvr2[r:4-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e6zmwr3[r:4-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7b0yG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7d43K2[K:5-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7ases3[s:126-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Elongation initiation factor 2 alpha subunit, putative ; ELECTRON MICROSCOPY

e7dicA1[A:643-725] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribonuclease R ; X-RAY DIFFRACTION 2.24Å

e6xreG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7edxu2[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7eg7u2[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7eg8u2[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7eg9u2[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7egau1[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7egbu1[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7lbmG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvrG2[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvsG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvtG2[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvuG2[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvyG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nvzG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nw0G2[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7dcyA3[A:643-725] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribonuclease R ; X-RAY DIFFRACTION 1.97Å

e7didA4[A:643-725] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribonuclease R ; X-RAY DIFFRACTION 1.90Å

e7o4iG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7egcu2[u:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7enaPG1[PG:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7a05A1[A:267-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; SOLUTION NMR

e7nkyG2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o4jG2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o4kG2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o4lG2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o72G2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o73G2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7o75G1[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7encPG1[PG:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7f4gG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7okxG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nkxG2[G:81-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7oqyE2[E:79-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit E ; ELECTRON MICROSCOPY

e7okyG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ol0G1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7nzmE2[E:5-92] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7oo3G1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7oobG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7oopG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7opcG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7opdG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7oznG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7oznS1[S:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ozoG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ozoS1[S:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ozpG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ozpS1[S:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7pksG1[G:79-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7f66N3[N:3-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7f67N3[N:3-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7f67Q3[Q:3-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7ml0G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ml1G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ml2G1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ml4G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7qght2[t:87-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e7qght1[t:23-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e7meig1[g:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7meiG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7mk9G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7mkag1[g:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7xn7G1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7xseG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7xsxG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7xszG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7xtdG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7qgrt1[t:87-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e7qgrt2[t:23-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S1 ; ELECTRON MICROSCOPY

e7qp6r1[r:4-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7qp7r1[r:4-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 2 subunit 1 ; ELECTRON MICROSCOPY

e7xt7G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e7xtiG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA polymerase II subunit ; ELECTRON MICROSCOPY

e8ceoG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7ui9G1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7uifG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7uioAG1[AG:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7uioBG1[BG:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7zs9G2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7zsaG1[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7zsbG2[G:69-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e8gxqPG1[PG:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e8gxsPG1[PG:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

e7uncG1[G:78-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit RPB7 ; ELECTRON MICROSCOPY

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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.

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

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