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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

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

X: Thioredoxin-like
H: Thioredoxin-like
T: Thioredoxin-like
F: GSHPx

PF00255 CL0172

Representatives:

e2f8aA1[A:12-195] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 1 ; ligands: MLA ; X-RAY DIFFRACTION 1.5Å

e2f8aB1[B:12-195] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 1 ; ligands: MLA ; X-RAY DIFFRACTION 1.5Å

e1gp1A1[A:10-193] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE ; X-RAY DIFFRACTION

e1gp1B1[B:10-193] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE ; X-RAY DIFFRACTION

e2v1mA1[A:7-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE ; ligands: ACT,LI,SO4 ; X-RAY DIFFRACTION 1.00Å

e3kijA1[A:39-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable glutathione peroxidase 8 ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å

e3e0uA1[A:14-177] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE ; ligands: GOL,NH4 ; X-RAY DIFFRACTION 2.3Å

e2he3A1[A:3-187] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 2 ; ligands: CL ; X-RAY DIFFRACTION 2.1Å

e2i3yA1[A:31-218] Image Pymol Jmol Links: PDB, SCOP, CATH

Epididymal secretory glutathione peroxidase ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e2r37A1[A:38-228] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 3 ; ligands: CL,NA ; X-RAY DIFFRACTION 1.85Å

e2gs3A1[A:27-197] Image Pymol Jmol Links: PDB, SCOP, CATH

Phospholipid hydroperoxide glutathione peroxidase ; ligands: CL ; X-RAY DIFFRACTION 1.9Å

e2p31A1[A:23-177] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 7 ; ligands: CL ; X-RAY DIFFRACTION 2.0Å

e2p5qA1[A:10-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: ACT,CD ; X-RAY DIFFRACTION 1.950Å

e2obiA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PHOSPHOLIPID HYDROPEROXIDE GLUTATHIONE PEROXIDASE (GPX4) ; X-RAY DIFFRACTION 1.55Å

e3cynA1[A:36-209] Image Pymol Jmol Links: PDB, SCOP, CATH

Probable glutathione peroxidase 8 ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2Å

e2vupA1[A:3-166] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE-LIKE PROTEIN ; X-RAY DIFFRACTION 2.1Å

e2r37B1[B:36-223] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 3 ; ligands: CL,NA ; X-RAY DIFFRACTION 1.85Å

e2p31B1[B:23-177] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 7 ; ligands: CL ; X-RAY DIFFRACTION 2.0Å

e2p5qB1[B:10-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: ACT,CD ; X-RAY DIFFRACTION 1.950Å

e2p5qC1[C:10-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: ACT,CD ; X-RAY DIFFRACTION 1.950Å

e2p5qD1[D:10-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: ACT,CD ; X-RAY DIFFRACTION 1.950Å

e2p5rA1[A:6-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: CA ; X-RAY DIFFRACTION 2.450Å

e2p5rB1[B:6-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase 5 ; ligands: CA ; X-RAY DIFFRACTION 2.450Å

e3cynB1[B:37-209] Image Pymol Jmol Links: PDB, SCOP, CATH

Probable glutathione peroxidase 8 ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2Å

e3cynC1[C:34-209] Image Pymol Jmol Links: PDB, SCOP, CATH

Probable glutathione peroxidase 8 ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2Å

e2rm5A1[A:10-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase-like protein ; SOLUTION NMR

e2rm6A1[A:10-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase-like protein ; SOLUTION NMR

e3dwvA1[A:9-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase-like protein ; X-RAY DIFFRACTION 1.410Å

e3dwvB1[B:9-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase-like protein ; X-RAY DIFFRACTION 1.410Å

e2wgrA1[A:7-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE PEROXIDASE ; ligands: POP ; X-RAY DIFFRACTION 1.7Å

e3kijB1[B:39-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable glutathione peroxidase 8 ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å

e3kijC1[C:39-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Probable glutathione peroxidase 8 ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å

e5l71A1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase, mitochondrial ; ligands: EDO ; X-RAY DIFFRACTION 1.8Å

e5h5qA1[A:33-197] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase, mitochondrial ; ligands: GOL ; X-RAY DIFFRACTION 1.1Å

e5h5rA1[A:29-197] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase, mitochondrial ; ligands: GOL ; X-RAY DIFFRACTION 1.2Å

e5h5sA1[A:34-197] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase, mitochondrial ; ligands: GOL ; X-RAY DIFFRACTION 1.85Å

e3cmiA1[A:2-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PEROXIREDOXIN HYR1 ; X-RAY DIFFRACTION 2.02Å

e6elwA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase, mitochondrial ; ligands: CL ; X-RAY DIFFRACTION 1.300Å

e6hn3A1[A:5-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: CL,EOH ; X-RAY DIFFRACTION 1.010Å

e6hkqA1[A:6-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: DMS,EDO,G9N,SO4 ; X-RAY DIFFRACTION 1.54Å

e6vpdA1[A:25-192] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase ; X-RAY DIFFRACTION 2.600Å

e6vpdB1[B:26-192] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione peroxidase ; X-RAY DIFFRACTION 2.600Å

e7l8kA1[A:7-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Phospholipid hydroperoxide glutathione peroxidase ; ligands: EDO,GOL,PO4 ; X-RAY DIFFRACTION 1.38Å

e7l8lA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Phospholipid hydroperoxide glutathione peroxidase ; ligands: SCN ; X-RAY DIFFRACTION 1.61Å

e7l8mA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Phospholipid hydroperoxide glutathione peroxidase ; X-RAY DIFFRACTION 2.07Å

e7l8qA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Phospholipid hydroperoxide glutathione peroxidase ; ligands: ACT ; X-RAY DIFFRACTION 1.48Å

e7l8rA1[A:7-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Isoform Cytoplasmic of Phospholipid hydroperoxide glutathione peroxidase ; ligands: SCN ; X-RAY DIFFRACTION 1.52Å

e7l8rB1[B:7-170] Image Pymol Jmol Links: PDB, SCOP, CATH

Isoform Cytoplasmic of Phospholipid hydroperoxide glutathione peroxidase ; X-RAY DIFFRACTION 1.52Å

e7fc2A1[A:25-219] Image Pymol Jmol Links: PDB, SCOP, CATH

Glutathione peroxidase 6 ; ligands: SO4 ; X-RAY DIFFRACTION 2.00Å

e7u4iA1[A:7-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: L9U,SCN ; X-RAY DIFFRACTION 1.79Å

e7u4iB1[B:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: L9U,SCN ; X-RAY DIFFRACTION 1.79Å

e7u4jA1[A:7-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: 8NB,SCN ; X-RAY DIFFRACTION 1.62Å

e7u4kA1[A:5-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: EDO,L9C ; X-RAY DIFFRACTION 1.59Å

e7u4lA1[A:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: LW1 ; X-RAY DIFFRACTION 1.85Å

e7u4lB1[B:5-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: LW1 ; X-RAY DIFFRACTION 1.85Å

e7u4lC1[C:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: LW1 ; X-RAY DIFFRACTION 1.85Å

e7u4lD1[D:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: LW1 ; X-RAY DIFFRACTION 1.85Å

e7u4mA1[A:0-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: EDO,LBI ; X-RAY DIFFRACTION 1.77Å

e7u4nA1[A:8-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: L8X ; X-RAY DIFFRACTION 1.53Å

e7u4nB1[B:6-170] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Phospholipid hydroperoxide glutathione peroxidase ; ligands: L8X ; X-RAY DIFFRACTION 1.53Å

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.

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