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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

X: NADH-quinone oxidoreductase subunit K
H: NADH-quinone oxidoreductase subunit K
T: NADH-quinone oxidoreductase subunit K
F: Oxidored_q2

PF00420

Representatives:

e3rkoK1[K:1-100] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-QUINONE OXIDOREDUCTASE SUBUNIT K ; X-RAY DIFFRACTION 3.00Å

e7vy9k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7vyek1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7vygk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7vyik1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7vysk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL,TYR ; ELECTRON MICROSCOPY

e7vz8k1[k:2-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7vzvk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7vzwk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w00k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w0hk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w0rk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w1ok1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w1pk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w1tk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w1uk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w1vk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w1zk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w20k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w2kk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w2lk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w2rk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w2uk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w2yk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w31k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w32k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w35k1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4ck1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w4dk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w4ek1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w4fk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w4gk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w4jk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4kk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4lk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4mk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4nk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7w4qk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zm7L1[L:2-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zm8L1[L:2-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zmbL1[L:2-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zmeL1[L:2-89] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zmgL1[L:2-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e7zmhL1[L:2-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e8bq5K1[K:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH dehydrogenase subunit 4L ; ELECTRON MICROSCOPY

e8bq6K1[K:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH dehydrogenase subunit 4L ; ELECTRON MICROSCOPY

e8esw4L1[4L:1-95] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ELECTRON MICROSCOPY

e8esz4L1[4L:1-96] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e7w0yk1[k:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH

NADH-ubiquinone oxidoreductase chain 4L ; ligands: CDL ; ELECTRON MICROSCOPY

e8oltK1[K:1-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: LMT ; ELECTRON MICROSCOPY

e6z16C1[C:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Multisubunit Na+/H+ antiporter, C subunit ; ligands: K ; ELECTRON MICROSCOPY

e6z16c1[c:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Multisubunit Na+/H+ antiporter, C subunit ; ligands: K ; ELECTRON MICROSCOPY

Previous
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.

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