Home Help

X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative

Keyword search

Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

X: HTH
H: HTH
T: winged
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.

Representatives:

e6l0oA1[A:773-843] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA helicase MCM8 ; ligands: SO4 ; X-RAY DIFFRACTION 1.21Å

e6efnA2[A:12-102] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Sporulation killing factor maturation protein SkfB ; X-RAY DIFFRACTION 1.291Å

e3go5A4[A:221-284] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Multidomain protein with S1 RNA-binding domains ; ligands: EDO ; X-RAY DIFFRACTION 1.40Å

e1b6aA1[A:375-448] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

METHIONINE AMINOPEPTIDASE ; ligands: TN4 ; X-RAY DIFFRACTION 1.600Å

e2vxzA1[A:5-69] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PYRSV_GP04 ; ligands: CL,GOL ; X-RAY DIFFRACTION 1.70Å

e2obpA1[A:12-92] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Putative DNA-binding protein ; ligands: NO3 ; X-RAY DIFFRACTION 1.700Å

e1xgsA1[A:195-271] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

METHIONINE AMINOPEPTIDASE ; X-RAY DIFFRACTION 1.75Å

e6ghoB3[B:236-294] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

UPF0413 protein GK0824 ; ligands: CL ; X-RAY DIFFRACTION 1.79Å

e2ewfA1[A:1-128] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nicking endonuclease N.BspD6I ; ligands: BR ; X-RAY DIFFRACTION 1.84Å

e3gbgA3[A:165-218] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TCP pilus virulence regulatory protein ; X-RAY DIFFRACTION 1.90Å

e5xfoA4[A:248-340] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PHD finger protein 1 ; X-RAY DIFFRACTION 1.90Å

e6j28A1[A:10-96] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

N(4)-bis(aminopropyl)spermidine synthase ; X-RAY DIFFRACTION 1.90Å

e1zelA1[A:1-82] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

hypothetical protein Rv2827c ; ligands: FMT ; X-RAY DIFFRACTION 1.93Å

e5xnhA2[A:-1-90] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

N(4)-bis(aminopropyl)spermidine synthase ; X-RAY DIFFRACTION 1.95Å

e6kjgB1[B:548-671] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Dual-functional monooxygenase/methyltransferase psoF ; X-RAY DIFFRACTION 1.99Å

e1z05A1[A:10-80] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

transcriptional regulator, ROK family ; ligands: SO4 ; X-RAY DIFFRACTION 2.0Å

e6ahtB1[B:4-116] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved hypothetical plasmid protein ; X-RAY DIFFRACTION 2.0Å

e3m8eA1[A:-15-102] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative DNA-binding protein ; X-RAY DIFFRACTION 2.000Å

e7bdvA3[A:157-237] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Can2 ; X-RAY DIFFRACTION 2.02Å

e2qm3A1[A:1-87] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

PREDICTED METHYLTRANSFERASE ; ligands: ACY ; X-RAY DIFFRACTION 2.05Å

e5wggA2[A:1-79] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Radical SAM domain protein ; ligands: CA ; X-RAY DIFFRACTION 2.050Å

e1qzzA1[A:10-101] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

aclacinomycin-10-hydroxylase ; X-RAY DIFFRACTION 2.1Å

e1xmxA2[A:161-247] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

hypothetical protein VC1899 ; ligands: FMT ; X-RAY DIFFRACTION 2.1Å

see Frontiers in Genetics 5:102

e6gos11[1:12-90] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Microcin B17-processing protein McbB ; ligands: EDO ; X-RAY DIFFRACTION 2.100Å

e1lvaA3[A:511-574] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SELENOCYSTEINE-SPECIFIC ELONGATION FACTOR ; X-RAY DIFFRACTION 2.12Å

e5z2iB1[B:29-120] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Dictyostelium discoideum mitochondrial calcium uniporter ; X-RAY DIFFRACTION 2.14Å

e6ec8A2[A:243-360] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lantibiotic dehydratase domain protein ; X-RAY DIFFRACTION 2.148Å

e2xvcA1[A:204-259] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ESCRT-III ; ligands: CD ; X-RAY DIFFRACTION 2.15Å

e3h35A1[A:31-174] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

uncharacterized protein ABO_0056 ; ligands: EDO ; X-RAY DIFFRACTION 2.150Å

e6btcA1[A:1-85] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LP1413 - SCCmec type IV-encoded DNA binding protein ; X-RAY DIFFRACTION 2.177Å

e5z08C1[C:161-191,C:258-328] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cenp-K ; X-RAY DIFFRACTION 2.199Å

e2co5A1[A:5-93] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

VIRAL PROTEIN F93 ; X-RAY DIFFRACTION 2.20Å

e5u1eA1[A:1-79] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative gentamicin methyltransferase ; X-RAY DIFFRACTION 2.213Å

e4d7kF1[F:11-98] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e4d7kA1[A:11-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e4d7kB1[B:11-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e4d7kC2[C:11-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e4d7kD1[D:10-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e4d7kE2[E:11-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SAM-DEPENDENT METHYLTRANSFERASES ; X-RAY DIFFRACTION 2.22Å

e5xfrA5[A:261-357] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Metal-response element-binding transcription factor 2 ; X-RAY DIFFRACTION 2.25Å

e1x19A4[A:-11-96] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CrtF-related protein ; ligands: SO4 ; X-RAY DIFFRACTION 2.27Å

e5uujA2[A:89-196] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AlkZ ; X-RAY DIFFRACTION 2.299Å

e4i99D2[D:144-212] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative uncharacterized protein ; X-RAY DIFFRACTION 2.3Å

e5dfnB1[B:18-129] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Telomerase associated protein p45 ; X-RAY DIFFRACTION 2.380Å

e5dfnB2[B:130-213] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Telomerase associated protein p45 ; X-RAY DIFFRACTION 2.380Å

e6b39A2[A:87-227] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AprA Methyltransferase 1 ; ligands: SO4 ; X-RAY DIFFRACTION 2.390Å

e1w5sA1[A:300-409] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORIGIN RECOGNITION COMPLEX SUBUNIT 2 ORC2 ; X-RAY DIFFRACTION 2.4Å

e4trbA1[A:2-9,A:146-210] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Purine phosphoribosyltransferase (GpT-1) ; X-RAY DIFFRACTION 2.4Å

e4a4zA3[A:801-830,A:1087-1123] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANTIVIRAL HELICASE SKI2 ; ligands: EDO ; X-RAY DIFFRACTION 2.40Å

e6hlkA1[A:35-165] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Redirecting phage packaging protein C (RppC) ; X-RAY DIFFRACTION 2.4158Å

e5oqdC2[C:574-693] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Polycomb protein Pcl ; ligands: EDO,PO4 ; X-RAY DIFFRACTION 2.447Å

e5v1qB1[B:1-101] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Radical SAM ; X-RAY DIFFRACTION 2.5Å

e6s2pN1[N:392-487] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NRC1 ; ligands: ADP ; X-RAY DIFFRACTION 2.5Å

e5do0B2[B:335-446] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein lysine methyltransferase 1 ; X-RAY DIFFRACTION 2.600Å

e4k51B3[B:415-475] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit A ; X-RAY DIFFRACTION 2.65Å

e4f91B21[B:888-993] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

U5 small nuclear ribonucleoprotein 200 kDa helicase ; X-RAY DIFFRACTION 2.69Å

e4lctA1[A:325-349] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 1 ; X-RAY DIFFRACTION 2.7Å

e4lctC2[C:325-352] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 1 ; X-RAY DIFFRACTION 2.7Å

e5me9A2[A:299-432] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cell division cycle protein CDT1 ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.7Å

e6f3hA3[A:829-896] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Exoribonuclease II, mitochondrial ; X-RAY DIFFRACTION 2.7Å

e6f3hB2[B:189-319] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Exoribonuclease II, mitochondrial ; X-RAY DIFFRACTION 2.7Å

e5lstA3[A:837-857,A:883-941,A:1033-1061] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-dependent DNA helicase Q4 ; ligands: ZN ; X-RAY DIFFRACTION 2.75Å

e5lstA4[A:942-1032] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-dependent DNA helicase Q4 ; X-RAY DIFFRACTION 2.75Å

e5dcaA12[A:1742-1857] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pre-mRNA-splicing helicase BRR2 ; X-RAY DIFFRACTION 2.8Å

e5dcaA6[A:908-1009] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pre-mRNA-splicing helicase BRR2 ; X-RAY DIFFRACTION 2.8Å

e5wtnA1[A:3-152] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Replication initiation and membrane attachment protein ; X-RAY DIFFRACTION 2.8Å

e3h5aA4[A:1-109] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MccB protein ; X-RAY DIFFRACTION 2.800Å

e2xgjA3[A:578-608,A:874-910] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-DEPENDENT RNA HELICASE DOB1 ; X-RAY DIFFRACTION 2.9Å

e3t5vB2[B:338-455] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nuclear mRNA export protein THP1 ; X-RAY DIFFRACTION 2.9Å

e4wd9A1[A:121-233] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Nisin biosynthesis protein NisB ; X-RAY DIFFRACTION 2.9Å

circular permutation

e2p6rA1[A:404-488] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

afUHEL308 HELICASE ; X-RAY DIFFRACTION 3.0Å

e5dooB2[B:307-418] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein lysine methyltransferase 2 ; X-RAY DIFFRACTION 3.100Å

e4a12B2[B:4-51] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION FACTOR FAPR ; X-RAY DIFFRACTION 3.15Å

e6mfvA3[A:328-392] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

tetratricopeptide repeat sensor PH0952 ; ligands: ADP ; X-RAY DIFFRACTION 3.40Å

e1u5tB2[B:490-564] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Defective in vacuolar protein sorting; Vps36p ; X-RAY DIFFRACTION 3.6Å

e1w7pD2[D:490-566] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

VPS36P, YLR417W ; X-RAY DIFFRACTION 3.600Å

e4bujA3[A:799-1121] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANTIVIRAL HELICASE SKI2 ; X-RAY DIFFRACTION 3.70Å

e2le8B1[B:380-408] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication factor Cdt1 ; SOLUTION NMR

e2ly1A1[A:256-341] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

TUDOR DOMAIN-CONTAINING PROTEIN 7 ; SOLUTION NMR

e2ly1A2[A:342-433] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

TUDOR DOMAIN-CONTAINING PROTEIN 7 ; SOLUTION NMR

e4ui9N4[N:660-730] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANAPHASE-PROMOTING COMPLEX SUBUNIT 2 ; ELECTRON MICROSCOPY

e5lgmA1[A:16-84] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein 5.5/5.7 ; SOLUTION NMR

e5mc6h7[h:1034-1120] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Antiviral helicase SKI2 ; ELECTRON MICROSCOPY

e5zuxA1[A:102-193] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Rok ; SOLUTION NMR

e6gw7A1[A:13-57] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA protecting protein DprA ; SOLUTION NMR

e6o9lR3[R:210-242] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit beta ; ELECTRON MICROSCOPY

e6v93G1[G:1-117] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase delta subunit 3 ; ELECTRON MICROSCOPY

e6wgc31[3:892-960] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication licensing factor MCM3 ; ELECTRON MICROSCOPY

e6xtx26[2:804-904] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication licensing factor MCM2 ; ELECTRON MICROSCOPY

e6xywAM1[AM:45-126] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

At1g73940/F2P9_19 ; ELECTRON MICROSCOPY

T: DNA-binding domain of intron-encoded endonucleases

lacks the N-terminal helix, circularly permuted wing

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