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
Representatives:
e4v1al1[l:34-166] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MITORIBOSOMAL PROTEIN ML49, MRPL49 ; ELECTRON MICROSCOPY
e7am2Ad1[Ad:24-87,Ad:120-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e8oitBx1[Bx:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MET,MG,VAL ; ELECTRON MICROSCOPY
e6yxxAl1[Al:60-218] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e8oiqBx1[Bx:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG,PHE ; ELECTRON MICROSCOPY
e6yxyAl1[Al:60-218] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e4ce4l1[l:91-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MRPL49 ; ELECTRON MICROSCOPY
e1vw471[7:41-146] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB
e7aoiAl1[Al:60-218] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e7aihAd1[Ad:7-88,Ad:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e3j6b71[7:41-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
54S ribosomal protein IMG2, mitochondrial ; ELECTRON MICROSCOPY
e3j7yg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e7aneAd1[Ad:7-88,Ad:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e3j9mg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ligands: MG ; ELECTRON MICROSCOPY
e5aj4Bl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MITORIBOSOMAL PROTEIN ML49, MRPL49 ; ligands: MG ; ELECTRON MICROSCOPY
e5mrc71[7:41-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e5mre71[7:41-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e5mrf71[7:41-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e5oolg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e5oomg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6gb2Bl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e6gawBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6nu2g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6nu3g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6ydpBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e6ydwBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e6z1pAL1[AL:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Large subunit ribosomal protein ; ELECTRON MICROSCOPY
e6i9rg1[g:36-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: G,MG ; ELECTRON MICROSCOPY
e6vlzg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6vmig1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zs9g1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zsag1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zsbg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zscg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zsdg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zseg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zsgg1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6ywe71[7:82-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e6yws71[7:82-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Uncharacterized protein ; ELECTRON MICROSCOPY
e6ywv71[7:82-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Uncharacterized protein ; ELECTRON MICROSCOPY
e6ywx71[7:82-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e6ywy71[7:82-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL49 ; ELECTRON MICROSCOPY
e7a5fg31[g3:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7a5gg31[g3:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7a5hg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7a5ig31[g3:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7a5jg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7a5kg31[g3:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e6zm5g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: ALA,MG ; ELECTRON MICROSCOPY
e6zm6g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7nqhBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e7nqlBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e7nshBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e6zsfg1[g:36-166] Image Pymol Jmol Links: PDB, SCOP, CATH
; ligands: MG
e7nsiBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7l08g1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of3g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of2g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of0g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7odrg1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7o9mg1[g:36-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ELECTRON MICROSCOPY
e7nsjBl1[Bl:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG ; ELECTRON MICROSCOPY
e7l20g1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7o9kg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7odsg1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ELECTRON MICROSCOPY
e7odtg1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of4g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of5g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of6g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7of7g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7og4g1[g:35-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oi7g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oi8g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oi9g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oiag1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oibg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oicg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: A,C,MG ; ELECTRON MICROSCOPY
e7oidg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7oieg1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ELECTRON MICROSCOPY
e7oi6g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7pd3g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: A,C,G,MG,U ; ELECTRON MICROSCOPY
e7qh6g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ELECTRON MICROSCOPY
e7qh7g1[g:38-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ELECTRON MICROSCOPY
e7po4g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY
e7qi4g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG,VAL ; ELECTRON MICROSCOPY
e7qi6g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG,VAL ; ELECTRON MICROSCOPY
e8oirBx1[Bx:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MET,MG,VAL ; ELECTRON MICROSCOPY
e7qi5g1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L49, mitochondrial ; ligands: MG,VAL ; ELECTRON MICROSCOPY
e8anyg1[g:33-166] Image Pymol Jmol Links: PDB, SCOP, CATH
39S ribosomal protein L49, mitochondrial ; ligands: MG,VAL ; ELECTRON MICROSCOPY
e8oinBx1[Bx:34-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mrpl34 ; ligands: MG,PHE ; ELECTRON MICROSCOPY
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
contains a HTH motif
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