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
looks like an elaborated ferredoxin
contains a HTH motif
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
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