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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

X: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: ClpS-like

contains a HTH motif

X: Cystatin-like
H: NTF2-like
T: NTF2-like
F: Tim44

PF04280 CL0051

Representatives:

e2cw9A1[A:270-451] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSLOCASE OF INNER MITOCHONDRIAL MEMBRANE ; ligands: 1PE ; X-RAY DIFFRACTION 1.9Å

e2fxtA1[A:234-425] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Import inner membrane translocase subunit TIM44 ; X-RAY DIFFRACTION 3.2Å

e4v1ai1[i:56-297] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITORIBOSOMAL PROTEIN ML45, MRPL45 ; ELECTRON MICROSCOPY

e8oiqBu1[Bu:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8oitBu1[Bu:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e3qk9A1[A:236-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

Mitochondrial import inner membrane translocase subunit TIM44 ; ligands: CL ; X-RAY DIFFRACTION 3.1Å

e3qk9B1[B:235-431] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

Mitochondrial import inner membrane translocase subunit TIM44 ; ligands: CL ; X-RAY DIFFRACTION 3.1Å

e4ce4i1[i:104-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MRPL45 ; ELECTRON MICROSCOPY

e3j7yd1[d:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

mL45 ; ELECTRON MICROSCOPY

e3j9md1[d:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

mL45 ; ELECTRON MICROSCOPY

e5aj4Bi1[Bi:56-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITORIBOSOMAL PROTEIN ML45, MRPL45 ; ELECTRON MICROSCOPY

e5oold1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e5oomd1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6gb2Bi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e6gawBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

mL45 ; ELECTRON MICROSCOPY

e6nu2d1[d:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6nu3d1[d:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

cDNA FLJ61100, highly similar to 39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6i9rd1[d:62-98,d:117-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6ydpBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e6ydwBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e6vlzd1[d:38-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6vmid1[d:38-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zs9d1[d:62-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zsad1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zsbd1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zscd1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zsdd1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zsed1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zsgd1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5fd31[d3:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5gd31[d3:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5hd1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5id31[d3:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5jd1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7a5kd31[d3:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zm5d1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e6zm6d1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY

e6zsfd1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH

e7nqhBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e7nqlBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e7nshBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e7of3d1[d:41-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of2d1[d:38-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of0d1[d:41-56,d:78-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of4d1[d:38-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of7d1[d:41-56,d:78-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7og4d1[d:63-98,d:117-292] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7o9kd1[d:36-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7l08d1[d:38-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7nsiBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e7odrd1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7o9md1[d:36-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of5d1[d:41-56,d:78-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7of6d1[d:38-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7l20d1[d:38-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7nsjBi1[Bi:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e7odsd1[d:73-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7odtd1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oi7d1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oi8d1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oi9d1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oiad1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oibd1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oicd1[d:117-287] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oidd1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oied1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7oi6d1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7pd3d1[d:50-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7qh6d1[d:76-91,d:117-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7po4d1[d:50-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7qi4d1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7qh7d1[d:117-285] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7qi6d1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e8oinBu1[Bu:38-297] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L45 ; ELECTRON MICROSCOPY

e8oirBu1[Bu:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e7qi5d1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

e8anyd1[d:37-295] Image Pymol Jmol Links: PDB, SCOP, CATH

39S ribosomal protein L45, mitochondrial ; ELECTRON MICROSCOPY

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 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