Home Help

X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


Keyword search


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: Alpha-beta plaits
H: RNA-binding domain, RBD
T: RNA-binding domain, RBD
F: RL

PF17797 CL0221

Representatives:

e3pq1A3[A:62-133] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Poly(A) RNA polymerase ; X-RAY DIFFRACTION 3.100Å

e3pq1B3[B:62-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Poly(A) RNA polymerase ; X-RAY DIFFRACTION 3.100Å

e5a2xB3[B:50-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 3.10Å

e5a2vA2[A:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 1.82Å

e5a2vB2[B:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; ligands: CL ; X-RAY DIFFRACTION 1.82Å

e5a2wA1[A:51-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.50Å

e5a2wB1[B:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.50Å

e5a2xA2[A:51-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 3.10Å

e5a2yA3[A:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.75Å

e5a2yB3[B:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.75Å

e5a2zA3[A:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.45Å

e5a2zB2[B:52-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.45Å

e5a30A2[A:51-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.75Å

e5a30B3[B:51-167] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITOCHONDRIAL PROTEIN ; X-RAY DIFFRACTION 2.75Å

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