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




Representatives:
e4v4vAD1[AD:2-205]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
30S ribosomal subunit protein S4 ; ELECTRON MICROSCOPY
e4v6iAC1[AC:1-197]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
40S ribosomal protein rpS9 (S4p) ; ELECTRON MICROSCOPY
e8cdlm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cdrm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cehm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cf5m1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cg8m1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cgnm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8civm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8ckum1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cmjm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8evpBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8evqBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG ; ELECTRON MICROSCOPY
e8evrBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG ; ELECTRON MICROSCOPY
e8evsBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8evtBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ewbBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ewcBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e5dgfS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.300Å
e5dgfs91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.300Å
e5dgvS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.100Å
e5dgvs91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.100Å
e5tzs91[9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5m1jJ21[J2:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5mc6W1[W:9-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5dgeS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ligands: OHX,PRO ; X-RAY DIFFRACTION 3.450Å
e5dges91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ligands: OHX,PRO ; X-RAY DIFFRACTION 3.450Å
e5tgmS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: LEU,OHX,PHE ; X-RAY DIFFRACTION 3.500Å
e5tgms91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: LEU,OHX,PHE ; X-RAY DIFFRACTION 3.500Å
e5wyjSK1[SK:12-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5wykSK1[SK:12-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5ll6W1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5meiK1[K:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.500Å
e5meis91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.500Å
e5tbwK1[K:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å
e5tbws91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å
e5wlcL91[L9:10-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
rpS9_uS4 ; ELECTRON MICROSCOPY
e6emlW1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5ndgS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; X-RAY DIFFRACTION 3.700Å
e5ndgs91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.700Å
e5ndvS91[S9:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; X-RAY DIFFRACTION 3.300Å
e5ndvs91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; X-RAY DIFFRACTION 3.300Å
e5ndwS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; X-RAY DIFFRACTION 3.700Å
e5ndws91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; X-RAY DIFFRACTION 3.700Å
e5obmS91[S9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; X-RAY DIFFRACTION 3.400Å
e5obms91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: LLL ; X-RAY DIFFRACTION 3.400Å
e6faiJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e5on6K1[K:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.1Å
e5on6s91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.1Å
e6gq1z1[z:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6gqbz1[z:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6gqvz1[z:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6i7oW1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6i7oWb1[Wb:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6hhqK1[K:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: OHX ; X-RAY DIFFRACTION 3.1Å
e6hhqs91[s9:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.1Å
e6q8yW1[W:9-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6rbdJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6rbeJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6s47BK1[BK:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6t4qSJ1[SJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6t7iSJ1[SJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6t7tSJ1[SJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6t83Jb1[Jb:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6t83k1[k:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6sv4W1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6sntJ1[J:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6sv4Wb1[Wb:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6sv4Wc1[Wc:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6y7cJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6tb3W1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6tnuW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6z6jSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6xiqz1[z:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6xirz1[z:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6z6kSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zvir1[r:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7a1gW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6wdrJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6wooJJ1[JJ:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
uS4 ; ELECTRON MICROSCOPY
e6zceK1[K:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqaDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqbDJ1[DJ:10-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqcDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqdDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqeDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqfDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zqgDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6zu9W1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7ajtDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7ajuDJ1[DJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7b7dW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7nrdSW1[SW:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7nrcSW1[SW:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e6xu6AJ1[AJ:4-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7mdzJJ1[JJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS4 ; ELECTRON MICROSCOPY
e5wlcLZ1[LZ:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Imp3 ; ELECTRON MICROSCOPY
e6ke65F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqp5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqq5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqr5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqs5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqt5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqu5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6lqv5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6zqaCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6zqbCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6zqcCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6zqdCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6zqeCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7ajtCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7ajuCI1[CI:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7mq8L91[L9:11-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7mq8LZ1[LZ:2-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7mq9L91[L9:11-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7mq9LZ1[LZ:2-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7mqaL91[L9:2-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ligands: MG ; ELECTRON MICROSCOPY
e7mqaLZ1[LZ:2-22,LZ:42-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e6xu7AJ1[AJ:4-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e6xu8AJ1[AJ:4-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7d4iSK1[SK:9-182] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7d4i5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7d5sSK1[SK:12-182] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7d5s5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7d5tSK1[SK:9-182] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7d5t5F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7d63SK1[SK:12-182] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7d635F1[5F:2-183] Image Pymol Jmol Links: PDB, SCOP, CATH
U3 small nucleolar ribonucleoprotein protein IMP3 ; ELECTRON MICROSCOPY
e7ls1L31[L3:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7ls2L31[L3:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7osauS41[uS4:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
BJ4_G0026100.mRNA.1.CDS.1 ; ligands: MG ; X-RAY DIFFRACTION 3.0Å
e7osmuS41[uS4:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
BJ4_G0026100.mRNA.1.CDS.1 ; ligands: MG ; X-RAY DIFFRACTION 3.0Å
e7r81K21[K2:2-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9 ; ELECTRON MICROSCOPY
e7rr5SJ1[SJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7mpiBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; ELECTRON MICROSCOPY
e7mpjBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; ELECTRON MICROSCOPY
e7n8bBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ligands: MG ; ELECTRON MICROSCOPY
e7pzyK1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal 40S subunit protein S9B ; ELECTRON MICROSCOPY
e7q08K1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal 40S subunit protein S9B ; ELECTRON MICROSCOPY
e7q0fK1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal 40S subunit protein S9B ; ELECTRON MICROSCOPY
e7q0pK1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal 40S subunit protein S9B ; ELECTRON MICROSCOPY
e7q0rK1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal 40S subunit protein S9B ; ELECTRON MICROSCOPY
e7sukL91[L9:10-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7zw0sW1[sW:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8c00W1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8c01W1[W:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtlSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtmSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtnSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtoSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtpSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtqSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7wtrSJ1[SJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7zpqAJ1[AJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7zrsAJ1[AJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7zuwAJ1[AJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e7zuxDJ1[DJ:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8bqdW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8bqxW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8c83W1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cahW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8casW1[W:2-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8cbjJ1[J:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY
e8eubBJ1[BJ:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8q5iK1[K:2-179] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
; ELECTRON MICROSCOPY
e8ccsm1[m:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S9-A ; ELECTRON MICROSCOPY

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