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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: L9 N-domain-like
H: L9 N-domain-like
T: L9 N-domain-like
F: Ribosomal_L9_N

PF01281

Representatives:

e2hbaA1[A:1-52] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ligands: CL,ZN ; X-RAY DIFFRACTION 1.250Å

e4y4o1I1[1I:1-55] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 2.300Å

e5hau1z6[1z:-66--8] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Chimera protein of 50S ribosomal protein L9 and Elongation factor G ; X-RAY DIFFRACTION 3.000Å

e5hau2z6[2z:-66--8] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Chimera protein of 50S ribosomal protein L9 and Elongation factor G ; X-RAY DIFFRACTION 3.000Å

e5j8bz5[z:-68--10] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GDPCP fused to the N-terminus of the ribosomal protein L9,Elongation factor 4 ; X-RAY DIFFRACTION 2.590Å

e4zsnRI1[RI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.6Å

e4zsnYI1[YI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.6Å

e5czpYI1[YI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.300Å

e5czpRI1[RI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.300Å

e5dfeYI1[YI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.09997551079Å

e5dfeRI1[RI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.09997551079Å

e5j30RI2[RI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.200Å

e5j30YI1[YI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.200Å

e5j3cRI1[RI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.040Å

e5j3cYI1[YI:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.040Å

e5lzaH2[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e5lzbH1[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e5lzcH1[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e5lzdH2[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e5lzeH1[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e5lzfH2[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e2rdoH1[H:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e4v48AF1[AF:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e6fkr1I2[1I:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.200Å

e6fkr2I2[2I:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 3.200Å

e7n1pLI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k50g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7nspH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7abzG2[G:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7o19BH2[BH:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7ac7G2[G:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7acjG2[G:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7acrG2[G:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k51g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k52g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k53g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k54g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7k55g1[g:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7lv0g1[g:1-57] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7n2cLI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7n2uLI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7n2vLI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7n30LI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7n31LI2[LI:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7nsoH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7nsqH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7o1aBH2[BH:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7o1cBH2[BH:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7oizh1[h:1-41] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7oj0h1[h:1-41] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7cpjH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7lvkP2[P:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7nwtG2[G:1-56] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7p3kh1[h:1-41] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjsH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjtH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjuH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjvH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjwH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjxH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjyH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7pjzH2[H:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7rq81I2[1I:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 2.500Å

e7rq82I2[2I:1-54] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 2.500Å

e7rq91I2[1I:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 2.600Å

e7rq92I2[2I:1-55] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; X-RAY DIFFRACTION 2.600Å

e7s1gP2[P:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e7s1hP2[P:1-56] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L9 ; ELECTRON MICROSCOPY

e4v19I1[I:53-150] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITORIBOSOMAL PROTEIN BL9M, MRPL9 ; ligands: MG ; 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.

X: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: ClpS-like

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