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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

X: Immunoglobulin-like beta-sandwich
H: Immunoglobulin-related
T: Common fold of diphtheria toxin/transcription factors/cytochrome f
F: Sec23_BS

PF08033

Representatives:

e2qtvA1[A:2-44,A:391-523] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein SEC23 ; X-RAY DIFFRACTION 2.500Å

e1m2vB11[B:61-73,B:133-218,B:556-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein transport protein SEC24 ; X-RAY DIFFRACTION 2.75Å

e1m2vA7[A:2-45,A:392-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein transport protein SEC23 ; X-RAY DIFFRACTION 2.75Å

e3egdA13[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.7Å

e2nutA14[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.300Å

e3egxA14[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 3.3Å

e4bziM16[M:133-218,M:556-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC24P ; ELECTRON MICROSCOPY

e4bziE16[E:133-218,E:556-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC24P ; ELECTRON MICROSCOPY

e4bziL16[L:133-218,L:556-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC24P ; ELECTRON MICROSCOPY

e1pcxA3[A:133-215,A:553-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24 ; X-RAY DIFFRACTION 2.5Å

e1pd1A3[A:133-215,A:553-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24 ; X-RAY DIFFRACTION 2.6Å

e3efoA4[A:3-49,A:393-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN TRANSPORT PROTEIN SEC23A ; X-RAY DIFFRACTION 2.7Å

e3eg9A2[A:3-49,A:393-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN TRANSPORT PROTEIN SEC23A ; X-RAY DIFFRACTION 3.0Å

e4bziA2[A:2-44,A:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC23P ; ELECTRON MICROSCOPY

e4bziD1[D:2-44,D:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC23P ; ELECTRON MICROSCOPY

e4bziG1[G:2-44,G:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SEC23P ; ELECTRON MICROSCOPY

e1m2oA2[A:2-44,A:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein transport protein SEC23 ; X-RAY DIFFRACTION 2.50Å

e1m2oC4[C:2-44,C:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

protein transport protein SEC23 ; X-RAY DIFFRACTION 2.50Å

e2nupA4[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.600Å

e5kyuA5[A:3-49,A:393-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 3.5Å

e5kyuB5[B:267-346,B:687-781] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24D ; X-RAY DIFFRACTION 3.5Å

e5vnjA3[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.8Å

e5vnlA1[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.394Å

e5vnmA3[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.765Å

e5vnnA5[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.5Å

e5vneA5[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.698Å

e5vnfA1[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.4Å

e5vngA1[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.6Å

e5vnhA1[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.6Å

e5vniA5[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.7876Å

e5vnkA2[A:3-50,A:394-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.55Å

e5vneB3[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.698Å

e5vnfB3[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.4Å

e5vngB3[B:347-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.6Å

e5vnhB5[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.6Å

e5vniB3[B:348-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.7876Å

e5vnjB3[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.8Å

e5vnkB5[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.55Å

e5vnlB2[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; ligands: CLT ; X-RAY DIFFRACTION 2.394Å

e5vnmB3[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; ligands: CLT ; X-RAY DIFFRACTION 2.765Å

e5vnnB2[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; ligands: CLT ; X-RAY DIFFRACTION 2.5Å

e5vnoB3[B:346-415,B:744-838] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24A ; X-RAY DIFFRACTION 2.9Å

e6gniE3[E:133-218,E:556-646] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein SEC24 ; ELECTRON MICROSCOPY

e6gniA5[A:2-44,A:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein SEC23 ; ELECTRON MICROSCOPY

e6zgaA4[A:2-44,A:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein SEC23 ; ELECTRON MICROSCOPY

e6zgaE2[E:2-44,E:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein SEC23 ; ELECTRON MICROSCOPY

e8bshA3[A:1-44,A:391-523] Image Pymol Jmol Links: PDB, SCOP, CATH

Protein transport protein SEC23 ; ELECTRON MICROSCOPY

e5kynA1[A:3-50,A:393-517] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec23A ; X-RAY DIFFRACTION 2.55Å

e1pd0A1[A:133-215,A:553-646] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein transport protein Sec24 ; X-RAY DIFFRACTION 2.6Å

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.

X: Glycosyl hydrolase domain-like

some similarity with Ig fold

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