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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

X: S15/NS1 RNA-binding domain
H: S15/NS1 RNA-binding domain
T: S15/NS1 RNA-binding domain
F: WHEP-TRS

PF00458 CL0600

Representatives:

e1r6tA1[A:7-60] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tryptophanyl-tRNA synthetase ; X-RAY DIFFRACTION 2.1Å

e1r1bA1[A:1-50] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRNA SYNTHETASE ; SOLUTION NMR

e1fyjA1[A:1-53] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MULTIFUNCTIONAL AMINOACYL-TRNA SYNTHETASE ; SOLUTION NMR

e1d2dA1[A:1-50] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRNA SYNTHETASE ; SOLUTION NMR

e1x59A1[A:1-73] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidyl-tRNA synthetase ; SOLUTION NMR

e2djvA1[A:1-79] Image Pymol Jmol Links: PDB, SCOP, CATH

Methionyl-tRNA synthetase ; SOLUTION NMR

e2lw7A4[A:1-47] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDINE--TRNA LIGASE, CYTOPLASMIC ; SOLUTION NMR

e5e6mA3[A:7-60] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycine--tRNA ligase ; X-RAY DIFFRACTION 2.927Å

e5ujjA2[A:8-64] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tryptophan--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 2.10Å

e6o76B3[B:2-46] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 2.787Å

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.

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

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes