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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

X: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: ClpS-like

contains a HTH motif

X: FKBP-like
H: FKBP-like
T: FKBP-like
F: FKBP_C

PF00254 CL0487

Representatives:

e2ppnA1[A:1-107] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FK506-binding protein 1A ; X-RAY DIFFRACTION 0.92Å

e1jvwA1[A:33-192] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MACROPHAGE INFECTIVITY POTENTIATOR ; X-RAY DIFFRACTION 1.7Å

e1u79A1[A:5-129] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FKBP-TYPE PEPTIDYL-PROLYL CIS-TRANS ISOMERASE 3 ; X-RAY DIFFRACTION 1.85Å

e1q1cA2[A:141-257] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FK506-binding protein 4 ; ligands: DMS,EDO ; X-RAY DIFFRACTION 1.9Å

e1q6hA2[A:114-224] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FKBP-type peptidyl-prolyl cis-trans isomerase fkpA ; X-RAY DIFFRACTION 1.97Å

e1fd9A2[A:99-212] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (MACROPHAGE INFECTIVITY POTENTIATOR PROTEIN) ; ligands: ZN ; X-RAY DIFFRACTION 2.410Å

e3cgmA1[A:1-64,A:123-157] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase ; ligands: GOL,NI,SCN ; X-RAY DIFFRACTION 2.410Å

e1t11A3[A:135-247] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Trigger factor ; X-RAY DIFFRACTION 2.5Å

e1hxvA1[A:29-113] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRIGGER FACTOR ; SOLUTION NMR

e1ix5A1[A:4-85,A:140-154] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FKBP ; SOLUTION NMR

e2kfwA1[A:1-69,A:127-196] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FKBP-type peptidyl-prolyl cis-trans isomerase slyD ; SOLUTION NMR

e2lknA1[A:2-166] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AH RECEPTOR-INTERACTING PROTEIN ; SOLUTION NMR

e7vmrI1[I:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7vmrJ1[J:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7vmsG1[G:2-108] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7vmsH1[H:2-108] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7vmsI1[I:2-108] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7vmsJ1[J:2-108] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e7oxiA1[A:1-64,A:123-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase ; ligands: CL ; X-RAY DIFFRACTION 2.6Å

e7oxkA1[A:1-64,A:123-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase ; X-RAY DIFFRACTION 2.80Å

e7ettA1[A:13-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; X-RAY DIFFRACTION 1.50Å

e7etuA1[A:13-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; X-RAY DIFFRACTION 1.39Å

e7oxhA1[A:1-64,A:123-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase ; ligands: CL,PE4,PEG ; X-RAY DIFFRACTION 1.70Å

e7oxgA1[A:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase,Peptidyl-prolyl cis-trans isomerase ; ligands: CL,IMD ; X-RAY DIFFRACTION 2.0Å

e7u0sA1[A:15-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FK506-binding protein 1A ; ligands: 1PE,ACT,KXX,P6G,PG4,SO4 ; X-RAY DIFFRACTION 1.700Å

e7u0sB1[B:28-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FK506-binding protein 1A ; ligands: 1PE,KXX,PG4,SO4 ; X-RAY DIFFRACTION 1.700Å

e7u0uB1[B:1-112] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidylprolyl isomerase ; ligands: FK5 ; X-RAY DIFFRACTION 1.900Å

e7zw0sk1[sk:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FK506-binding protein 1 ; ligands: ZN ; ELECTRON MICROSCOPY

e7u8dA1[A:0-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: GOL,LWR ; X-RAY DIFFRACTION 1.39Å

e7u8dB1[B:0-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: GOL,LWR ; X-RAY DIFFRACTION 1.39Å

e8h77F2[F:2-113,F:133-169] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AH receptor-interacting protein ; ELECTRON MICROSCOPY

e8er6A1[A:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XYU ; X-RAY DIFFRACTION 2.81Å

e8er6C1[C:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XYU ; X-RAY DIFFRACTION 2.81Å

e8er6E1[E:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XYU ; X-RAY DIFFRACTION 2.81Å

e8er7A1[A:1-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XZ3 ; X-RAY DIFFRACTION 3.07Å

e8er7C1[C:1-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XZ3 ; X-RAY DIFFRACTION 3.07Å

e8er7E1[E:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XZ3 ; X-RAY DIFFRACTION 3.07Å

e8eraB1[B:2-108] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP1A ; ligands: XYU ; ELECTRON MICROSCOPY

e8ba6A1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: S8N ; X-RAY DIFFRACTION 1.10Å

e8bajA1[A:3-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: 9QN ; X-RAY DIFFRACTION 1.20Å

e7r0lA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: EPE,GOL,GY1 ; X-RAY DIFFRACTION 1.10Å

e8eoaC1[C:1-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Aryl-hydrocarbon-interacting protein-like 1 ; ELECTRON MICROSCOPY

e8ccaA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: GY1 ; X-RAY DIFFRACTION 1.33Å

e8ccbA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: U83 ; X-RAY DIFFRACTION 1.70Å

e8cccA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: UCT ; X-RAY DIFFRACTION 1.55Å

e8ccdA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: UCO ; X-RAY DIFFRACTION 2.10Å

e8cceA1[A:13-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: GOL,UCF ; X-RAY DIFFRACTION 1.40Å

e8ccfA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: UC0 ; X-RAY DIFFRACTION 2.00Å

e8ccgA1[A:13-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: UBK ; X-RAY DIFFRACTION 1.30Å

e8cchA1[A:13-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP5 ; ligands: U8C ; X-RAY DIFFRACTION 1.73Å

e8senE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8senF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8senG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8senH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seoE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seoF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seoG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seoH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sepE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sepF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sepG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sepH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seqE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seqF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seqG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8seqH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8serE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8serF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8serG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8serH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sesE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sesF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sesG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8sesH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8setE1[E:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8setF1[F:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8setG1[G:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8setH1[H:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glutathione S-transferase class-mu 26 kDa isozyme,Peptidyl-prolyl cis-trans isomerase FKBP1B ; ELECTRON MICROSCOPY

e8ppzA1[A:1-107] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

; ligands: 0AN,CA ; X-RAY DIFFRACTION 1.85Å

e8chiA1[A:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: UMR ; X-RAY DIFFRACTION 1.70Å

e8chnA1[A:3-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: UUI ; X-RAY DIFFRACTION 0.99Å

Previous

e2mphA2[A:88-224] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP3 ; SOLUTION NMR

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 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