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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

X: cradle loop barrel

Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365

X: SH3
H: SH3
T: SH3
F: MS_channel_2nd

PF00924 CL0010

Representatives:

e2vv5A1[A:113-179] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SMALL-CONDUCTANCE MECHANOSENSITIVE CHANNEL ; X-RAY DIFFRACTION 3.45Å

e7ooaF2[F:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel of small conductance (MscS) ; ligands: AV0 ; ELECTRON MICROSCOPY

e7ooaG2[G:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel of small conductance (MscS) ; ligands: AV0 ; ELECTRON MICROSCOPY

e7dluA3[A:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluB3[B:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluC1[C:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluD1[D:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluE2[E:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluF1[F:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7dluG2[G:108-174] Image Pymol Jmol Links: PDB, SCOP, CATH

Mechanosensitive ion channel MscS ; ELECTRON MICROSCOPY

e7n4tA1[A:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tB2[B:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tC1[C:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tD3[D:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tE3[E:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tF2[F:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7n4tG2[G:162-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Low conductance mechanosensitive channel YnaI ; ligands: PEE ; ELECTRON MICROSCOPY

e7razA1[A:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ligands: PTY ; ELECTRON MICROSCOPY

e7razB1[B:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ELECTRON MICROSCOPY

e7razC1[C:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ligands: PTY ; ELECTRON MICROSCOPY

e7razD1[D:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ELECTRON MICROSCOPY

e7razE1[E:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ligands: PTY ; ELECTRON MICROSCOPY

e7razF2[F:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ligands: PTY ; ELECTRON MICROSCOPY

e7razG2[G:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Small-conductance mechanosensitive channel ; ligands: PTY ; ELECTRON MICROSCOPY

e8ddjA1[A:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjB1[B:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjC2[C:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjD1[D:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjE3[E:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjF1[F:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; ELECTRON MICROSCOPY

e8ddjG1[G:113-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mechanosensitive channel MscS ; 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 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