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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: Catalytic cysteine domain in ubiquitin-activating enzyme
H: Catalytic cysteine domain in ubiquitin-activating enzyme
T: Catalytic cysteine domain in ubiquitin-activating enzyme
F: E1_4HB

PF16191

Representatives:

e3cmmA5[A:285-356] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: PRO ; X-RAY DIFFRACTION 2.700Å

e3cmmC6[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: PRO ; X-RAY DIFFRACTION 2.700Å

e4nnjA2[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.4Å

e4nnjC6[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.4Å

e5l6jA6[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.68Å

e5l6hA4[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.3Å

e5l6hC3[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.3Å

e5l6iA2[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: CL,GOL ; X-RAY DIFFRACTION 2.76Å

e5l6iC1[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: CL,GOL ; X-RAY DIFFRACTION 2.76Å

e5l6jC1[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.68Å

e5tr4A4[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 2.200Å

e5tr4C1[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 2.200Å

e6nyaA2[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: EDO,SO4 ; X-RAY DIFFRACTION 2.07Å

e6nyaD5[D:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: EDO,SO4 ; X-RAY DIFFRACTION 2.07Å

e6zqhA1[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.026Å

e6zqhC5[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.026Å

e7k5jD5[D:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jA4[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jC1[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jG2[G:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jI4[I:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jK6[K:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jS1[S:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e7k5jU2[U:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.42Å

e6zhtC2[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; ligands: CL,GOL ; X-RAY DIFFRACTION 2.300Å

e6zhsA6[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.350Å

e6zhuA1[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.18Å

e6zhuE3[E:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.18Å

e6zhuC2[C:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.18Å

e6zhuG5[G:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH

Ubiquitin-activating enzyme E1 1 ; X-RAY DIFFRACTION 3.18Å

e7zh9A4[A:285-356] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin-activating enzyme E1 1 ; ligands: GOL ; X-RAY DIFFRACTION 1.705Å

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