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:
e4ce4h2[h:234-306] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MRPL44 ; ELECTRON MICROSCOPY
e4v1ah2[h:235-319] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MITORIBOSOMAL PROTEIN ML44, MRPL44 ; ELECTRON MICROSCOPY
e8oitBt1[Bt:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8oiqBt1[Bt:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e3j7yc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e3j9mc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e5aj4Bh1[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MITORIBOSOMAL PROTEIN ML44, MRPL44 ; ELECTRON MICROSCOPY
e5oolc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e5oomc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6gb2Bh1[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mitochondrial ribosomal protein L44 ; ELECTRON MICROSCOPY
e6gawBh2[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6nu2c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6nu3c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6ydpBh2[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e6ydwBh2[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Uncharacterized protein ; ELECTRON MICROSCOPY
e6i9rc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6vlzc2[c:234-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6vmic1[c:234-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zs9c1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zsac1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zsbc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zscc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zsdc1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zsec2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zsgc1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5fc32[c3:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5gc31[c3:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5hc1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5ic32[c3:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5jc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7a5kc31[c3:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zm5c2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e6zm6c1[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7nqhBh1[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e7nqlBh2[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e7nshBh1[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e6zsfc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH
e7nsiBh2[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7l08c1[c:234-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of3c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of2c1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of0c1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7odrc2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7o9kc1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7nsjBh1[Bh:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; ELECTRON MICROSCOPY
e7l20c1[c:234-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7o9mc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7odsc2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7odtc2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of4c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of5c1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of6c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7of7c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7og4c1[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oi7c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oi8c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oi9c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oiac2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oibc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oicc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oidc2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oiec2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7oi6c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7pd3c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7qh6c2[c:234-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7qh7c2[c:234-317] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7po4c1[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7qi4c1[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7qi6c1[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e8oirBt2[Bt:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e7qi5c2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e8anyc2[c:234-320] Image Pymol Jmol Links: PDB, SCOP, CATH
39S ribosomal protein L44, mitochondrial ; ELECTRON MICROSCOPY
e8oinBt1[Bt:235-319] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mL44 ; 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