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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

X: Arp2/3 complex 21 kDa subunit ARPC3
H: Arp2/3 complex 21 kDa subunit ARPC3
T: Arp2/3 complex 21 kDa subunit ARPC3
F: P21-Arc

PF04062

Representatives:

e1k8kE1[E:2-175] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARP2/3 COMPLEX 21 KDA SUBUNIT ; X-RAY DIFFRACTION 2.0Å

e2p9lE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.650Å

e2p9pE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.900Å

e2p9nE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.850Å

e2p9sE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.68Å

e2p9iE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.430Å

e2p9uE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.750Å

e1tyqE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARP2/3 COMPLEX 21KDA SUBUNIT ; X-RAY DIFFRACTION 2.55Å

e1u2vE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arp2/3 Complex 21Kda Subunit ; X-RAY DIFFRACTION 2.55Å

e2p9kE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.580Å

e3dxkE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 3 ; X-RAY DIFFRACTION 2.7Å

e3uleE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.500Å

e3dxmE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 3 ; X-RAY DIFFRACTION 2.85Å

e3rseE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 3 ; X-RAY DIFFRACTION 2.65Å

e3ukuE1[E:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.75Å

e3ukrE1[E:1-173] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 2.48Å

e3dwlJ1[J:44-97,J:137-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 3 ; X-RAY DIFFRACTION 3.78Å

e4jd2E1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 3.08Å

e4xeiE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 3.874Å

e4xf2E1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 5.0Å

e4xf2X1[X:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 5.0Å

e6decE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 4.6Å

e6decL1[L:16-101,L:122-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; X-RAY DIFFRACTION 4.6Å

e6uhcE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e6yw6E1[E:6-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e6w17E1[E:1-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e6w18E1[E:1-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e6yw7E1[E:6-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e7aqke1[e:1-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3, ArpC3 ; ELECTRON MICROSCOPY

e7jpnE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e7tptE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e8e9bE1[E:2-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actin-related protein 2/3 complex subunit 3 ; ELECTRON MICROSCOPY

e7t5qE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH

; ELECTRON MICROSCOPY

e8tahE1[E:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e3dwlE1[E:44-97,E:137-172] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 3 ; X-RAY DIFFRACTION 3.78Å

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