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
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
binds one zinc with two CxxC motifs on two beta-hairpins
Representatives:
e2zjr41[4:1-37] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S RIBOSOMAL PROTEIN L36 ; X-RAY DIFFRACTION 2.91Å
e7u2i191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.550Å
e7u2i291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.550Å
e7u2j191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.550Å
e7u2j291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; X-RAY DIFFRACTION 2.550Å
e7qh4f1[f:2-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7qv241[4:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7qv341[4:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7ood21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7p6z21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7pah21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pai21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7paj21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pak21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pal21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pam21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pan21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pao21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7paq21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7par21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pas21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pat21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pau21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7ph921[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pha21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7phb21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7phc21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pi821[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pi921[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pia21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pib21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pic21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pio21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pip21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7piq21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pir21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pis21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7pit21[2:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7ttuR1[R:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7ttwR1[R:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7sfr41[4:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8a22AD1[AD:7-52] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
bL36m ; ligands: ZN ; ELECTRON MICROSCOPY
e8apnAD1[AD:7-52] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
bL36m ; ligands: ZN ; ELECTRON MICROSCOPY
e8cvj191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.400Å
e8cvj291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.400Å
e8cvk191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.500Å
e8cvk291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.500Å
e8cvl191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.300Å
e8cvl291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.300Å
e8ekb191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.700Å
e8ekb291[29:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; X-RAY DIFFRACTION 2.700Å
e8a5791[9:1-36] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8a5i91[9:1-36] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8a6391[9:1-36] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8akn31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8am931[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8ana31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8ap431[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e8aye31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8b0x31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8b7ym1[m:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8eiu31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MET,ZN ; ELECTRON MICROSCOPY
e8ekc81[8:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; ELECTRON MICROSCOPY
e7m5df1[f:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7q4kB41[B4:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7qq3m1[m:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ylam1[m:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8a3l31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8fizBP1[BP:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e8g6w31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8g6x31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8g6y31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uvv31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uvw31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uvx31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uvy31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uvz31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uw131[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ztaL3611[L361:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: CYS,GLN,ZN ; ELECTRON MICROSCOPY
e7qi641[4:66-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L36, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e8fomR91[R9:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; X-RAY DIFFRACTION 3.400Å
e8fomY91[Y9:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; X-RAY DIFFRACTION 3.400Å
e8fonR91[R9:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.500Å
e8fonY91[Y9:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.500Å
e8crx31[3:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e8cvm31[3:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e8fr8F1[F:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ELECTRON MICROSCOPY
e7xamf1[f:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e7y41f1[f:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L36 ; ligands: MG,ZN ; ELECTRON MICROSCOPY
e8buu41[4:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L36 ; ligands: ZN ; ELECTRON MICROSCOPY
e8cgk31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ZN ; ELECTRON MICROSCOPY
e8cam31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG,ZN ; ELECTRON MICROSCOPY
e8cgv31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG,ZN ; ELECTRON MICROSCOPY
e8syl81[8:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ZN ; ELECTRON MICROSCOPY
e8bf7e1[e:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e7y7c31[3:1-38] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8oirBl1[Bl:66-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L36, mitochondrial ; ligands: MET,MG,VAL,ZN ; ELECTRON MICROSCOPY
e7qi541[4:66-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L36, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e8any41[4:66-103] Image Pymol Jmol Links: PDB, SCOP, CATH
39S ribosomal protein L36, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e8fc1191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG,ZN ; X-RAY DIFFRACTION 2.500Å
e8t8b191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG,ZN ; X-RAY DIFFRACTION 2.650Å
e8fc4191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG,ZN ; X-RAY DIFFRACTION 2.450Å
e8ev6191[19:1-37] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG,ZN ; X-RAY DIFFRACTION 2.946Å
e8oinBl1[Bl:63-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e8apoAD1[AD:7-52] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ZN ; ELECTRON MICROSCOPY
PreviousPseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
binds two zincs. one in the same way as rubredoxin, probably related to rubredoxin. the other in a similar way as glucocorticoid receptor
binds zinc with one beta-hairpin and one helix, the helix binds DNA
extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes