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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

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

X: TIM beta/alpha-barrel
H: TIM barrels
T: TIM barrels
F: HpcH_HpaI

PF03328 CL0036

Representatives:

e1u5hA1[A:1-223] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

citE ; ligands: FMT ; X-RAY DIFFRACTION 1.65Å

e1izcA1[A:2-300] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

macrophomate synthase intermolecular Diels-Alderase ; ligands: MG,PYR ; X-RAY DIFFRACTION 1.7Å

swap

e1dxeA1[A:4-256] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEHYDRO-3-DEOXY-GALACTARATE ALDOLASE ; ligands: MG,PO4 ; X-RAY DIFFRACTION 1.8Å

swap

e3qqwC1[C:6-321] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3oyxA1[A:5-283] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Malate synthase ; ligands: CL,GLV,K,MG ; X-RAY DIFFRACTION 2.500Å

e3oyzA1[A:5-284,A:328-432] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Malate Synthase ; ligands: ACO,CL,K,MG,PO4,PYR ; X-RAY DIFFRACTION 1.95Å

e1dxfA1[A:4-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEHYDRO-3-DEOXY-GALACTARATE ALDOLASE ; ligands: MG,PYR ; X-RAY DIFFRACTION 2.6Å

e5taoA1[A:5-282,A:326-357,A:387-432] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Malate synthase ; ligands: ACT,CL,GLV,K,NA,PB ; X-RAY DIFFRACTION 2.100Å

e1dxeB1[B:4-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEHYDRO-3-DEOXY-GALACTARATE ALDOLASE ; ligands: MG,PO4 ; X-RAY DIFFRACTION 1.8Å

e1dxfB1[B:4-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-DEHYDRO-3-DEOXY-GALACTARATE ALDOLASE ; ligands: MG,PYR ; X-RAY DIFFRACTION 2.6Å

e1u5vA1[A:1-223] Image Pymol Jmol Links: PDB, SCOP, CATH

citE ; ligands: ATP,FMT ; X-RAY DIFFRACTION 1.85Å

e3qz6A1[A:0-258] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE ; ligands: ZN ; X-RAY DIFFRACTION 2.0Å

e4b5xA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.80Å

e3qllA1[A:5-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase ; X-RAY DIFFRACTION 2.45Å

e2v5jA1[A:-8-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,4-DIHYDROXYHEPT-2-ENE-1,7-DIOIC ACID ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.6Å

e2vwsA1[A:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.39Å

e1sgjB1[B:4-234] Image Pymol Jmol Links: PDB, SCOP, CATH

citrate lyase, beta subunit ; ligands: MG,OAA ; X-RAY DIFFRACTION 1.84Å

e1sgjC1[C:4-234] Image Pymol Jmol Links: PDB, SCOP, CATH

citrate lyase, beta subunit ; ligands: MG,OAA ; X-RAY DIFFRACTION 1.84Å

e1z6kA1[A:1-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CITRATE LYASE BETA SUBUNIT ; ligands: MG,OAA ; X-RAY DIFFRACTION 2.3Å

e2v5jB1[B:-8-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,4-DIHYDROXYHEPT-2-ENE-1,7-DIOIC ACID ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.6Å

e2v5kA1[A:-8-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,4-DIHYDROXYHEPT-2-ENE-1,7-DIOIC ACID ALDOLASE ; ligands: MG,OXM,PO4 ; X-RAY DIFFRACTION 2.2Å

e2v5kB1[B:-8-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,4-DIHYDROXYHEPT-2-ENE-1,7-DIOIC ACID ALDOLASE ; ligands: MG,OXM,PO4 ; X-RAY DIFFRACTION 2.2Å

e2vwsB1[B:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: PO4 ; X-RAY DIFFRACTION 1.39Å

e2vwsC1[C:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.39Å

e2vwtA1[A:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: MG,PO4,PYR ; X-RAY DIFFRACTION 1.93Å

e2vwtB1[B:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: MG,PO4,PYR ; X-RAY DIFFRACTION 1.93Å

e2vwtC1[C:1-256] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YFAU, 2-KETO-3-DEOXY SUGAR ALDOLASE ; ligands: GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.93Å

e4b5wB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4b5uA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CO,GOL,MG,PYR,SSN ; X-RAY DIFFRACTION 1.91Å

e4b5sA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: 3GR,CO,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.68Å

e4b5tB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: 2KT,CO,GOL,MG ; X-RAY DIFFRACTION 1.92Å

e4b5vA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: E8U,GOL,MG,PYR ; X-RAY DIFFRACTION 2.04Å

e4b5wD1[D:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4b5uB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CO,GOL,MG,PYR,SSN ; X-RAY DIFFRACTION 1.91Å

e4b5tA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: 2KT,CO,GOL,MG ; X-RAY DIFFRACTION 1.92Å

e4b5wA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4b5xB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 1.80Å

e4b5vB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: E8U,GOL,MG,PYR ; X-RAY DIFFRACTION 2.04Å

e4b5sB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: 3GR,CO,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.68Å

e4b5wC1[C:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4b5wF1[F:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4b5wE1[E:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-HYDROXY-2-OXO-HEPTANE-1,7-DIOATE ALDOLASE ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.79Å

e4mf4A1[A:4-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e4mf4B1[B:4-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; X-RAY DIFFRACTION 2.0Å

e4mf4C1[C:4-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e4mf4D1[D:4-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e4mf4E1[E:5-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e4mf4F1[F:5-261] Image Pymol Jmol Links: PDB, SCOP, CATH

HPCH/HPAI ALDOLASE/CITRATE LYASE FAMILY PROTEIN ; ligands: EDO ; X-RAY DIFFRACTION 2.0Å

e3qllB1[B:5-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase ; X-RAY DIFFRACTION 2.45Å

e3qllC1[C:5-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase ; X-RAY DIFFRACTION 2.45Å

e4l9yB1[B:2-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: 1VU,GLV,MG ; X-RAY DIFFRACTION 2.1Å

e4l9yD1[D:2-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: GLV,MG ; X-RAY DIFFRACTION 2.1Å

e4l9yE1[E:2-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: CL,MG ; X-RAY DIFFRACTION 2.1Å

e4l80A2[A:2-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l80C2[C:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l80F2[F:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l80B2[B:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l80E2[E:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l80D2[D:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: 1VU,MG,OXL,TRS ; X-RAY DIFFRACTION 2.01Å

e4l7zB2[B:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

e4l7zE2[E:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

e4l7zC2[C:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

e4l7zF2[F:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

e4l7zD2[D:2-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

e3r4iA2[A:3-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: CA ; X-RAY DIFFRACTION 2.24Å

e3qqwE2[E:6-282] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3qqwF2[F:17-279,F:302-321] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3qqwA3[A:16-279,A:302-321] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3qqwD2[D:19-279,D:302-321] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3qqwB2[B:8-282,B:303-321] Image Pymol Jmol Links: PDB, SCOP, CATH

Putative citrate lyase ; ligands: CL ; X-RAY DIFFRACTION 2.44Å

e3r4iB2[B:3-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: CA,CL ; X-RAY DIFFRACTION 2.24Å

e3r4iE2[E:2-328] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: CA,CL ; X-RAY DIFFRACTION 2.24Å

e3r4iC2[C:4-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: ACT,CA,CL ; X-RAY DIFFRACTION 2.24Å

e3r4iD2[D:4-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: ACT,CA,CL ; X-RAY DIFFRACTION 2.24Å

e3r4iF2[F:4-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Citrate Lyase ; ligands: CA,CL ; X-RAY DIFFRACTION 2.24Å

e4tv5A1[A:4-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-dehydro-3-deoxyglucarate aldolase ; ligands: CA ; X-RAY DIFFRACTION 1.850Å

e4tv6A1[A:6-120,A:143-257] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2-dehydro-3-deoxyglucarate aldolase ; ligands: OAA ; X-RAY DIFFRACTION 2.600Å

e4l9yA2[A:2-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: 1VU,CL,MG ; X-RAY DIFFRACTION 2.1Å

e4l9yF2[F:2-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: CL,MG ; X-RAY DIFFRACTION 2.1Å

e4l9zA2[A:3-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4l9zB2[B:2-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4l9zC2[C:2-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4l9zD2[D:2-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4l9zE2[E:3-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4l9zF2[F:3-315] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: COA,MG,OXL ; X-RAY DIFFRACTION 2.01Å

e4roqA1[A:2-323] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: 1PE,CL,MG

e5ugrA1[A:2-324] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Malyl-CoA lyase/beta-methylmalyl-CoA lyase ; ligands: 1PE,CL,MG ; X-RAY DIFFRACTION 1.56Å

e5vxoA1[A:40-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: 1VU,EDO,PEG,PG4,PGE,PO4 ; X-RAY DIFFRACTION 2.266Å

e5vxoB1[B:40-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: 1VU,EDO,PEG,PG4,PGE,PO4 ; X-RAY DIFFRACTION 2.266Å

e5vxoC1[C:40-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: 1VU,EDO,PEG,PG4,PGE,PO4 ; X-RAY DIFFRACTION 2.266Å

e5vxsD1[D:40-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e5vxcA1[A:40-340] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: COA,MG ; X-RAY DIFFRACTION 1.872Å

e5vxsA1[A:40-300,A:322-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e5vxsB1[B:40-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e5vxsC1[C:40-340] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e5vxsE1[E:40-340] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e5vxsF1[F:40-340] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein, mitochondrial ; ligands: CIT ; X-RAY DIFFRACTION 2.954Å

e6chuA1[A:0-221,A:250-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: ACT,EDO,MG ; X-RAY DIFFRACTION 1.61Å

e6cj3A1[A:2-224,A:250-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: ACT,MG,PYR ; X-RAY DIFFRACTION 1.7300Å

e6cj4A1[A:1-224,A:251-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: AAE,ACT,MG ; X-RAY DIFFRACTION 1.73Å

e6aq4B1[B:9-276] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: CL,CQM,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.825Å

e6aq4A1[A:10-276] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: CL,CQM,GOL,MG,PO4 ; X-RAY DIFFRACTION 1.825Å

e6aq4C1[C:9-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: CL,CQM,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.825Å

e6arbA1[A:10-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: COA,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.717Å

e6arbB1[B:10-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: COA,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.717Å

e6arbC1[C:10-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: COA,GOL,MG,PO4,PYR ; X-RAY DIFFRACTION 1.717Å

e6as5A1[A:11-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: AAE,COA,MG,SO4 ; X-RAY DIFFRACTION 2.035Å

e6as5B1[B:11-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: AAE,COA,GOL,MG,SO4 ; X-RAY DIFFRACTION 2.035Å

e6as5C1[C:11-277] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citrate lyase subunit beta-like protein ; ligands: AAE,COA,GOL,MG,SO4 ; X-RAY DIFFRACTION 2.035Å

e6r62A1[A:0-251] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

HpcH/HpaI aldolase ; ligands: 3PY,ACT,BR,K,MG ; X-RAY DIFFRACTION 1.550Å

e6kinA1[A:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kkhI1[I:1-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG,OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kinB1[B:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kinC1[C:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kinD1[D:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kinE1[E:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kinF1[F:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.50Å

e6kkhA1[A:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhB1[B:3-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhC1[C:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhD1[D:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhE1[E:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhF1[F:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG,OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhG1[G:4-335] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhH1[H:8-335] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhJ1[J:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhK1[K:1-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: TRS ; X-RAY DIFFRACTION 2.64Å

e6kkhL1[L:1-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: OXL,TRS ; X-RAY DIFFRACTION 2.64Å

e7et8A1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e7et8B1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e7et8C1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA ; X-RAY DIFFRACTION 1.900Å

e7et9A1[A:1-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,PYR,ZN ; X-RAY DIFFRACTION 1.740Å

e7et9B1[B:1-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,PYR,ZN ; X-RAY DIFFRACTION 1.740Å

e7et9C1[C:1-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,PYR,ZN ; X-RAY DIFFRACTION 1.740Å

e7etaA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.8500Å

e7etaB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.8500Å

e7etaC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR ; X-RAY DIFFRACTION 1.8500Å

e7etbA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR ; X-RAY DIFFRACTION 1.850Å

e7etbB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR ; X-RAY DIFFRACTION 1.850Å

e7etbC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR ; X-RAY DIFFRACTION 1.850Å

e7etcA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,JBU,ZN ; X-RAY DIFFRACTION 1.800Å

e7etcB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,PYR,ZN ; X-RAY DIFFRACTION 1.800Å

e7etcC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,JBU,PYR,ZN ; X-RAY DIFFRACTION 1.800Å

e7etdA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,KDG,ZN ; X-RAY DIFFRACTION 1.680Å

e7etdB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,KDG,ZN ; X-RAY DIFFRACTION 1.680Å

e7etdC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,KDG,ZN ; X-RAY DIFFRACTION 1.680Å

e7eteA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,JBU,MG ; X-RAY DIFFRACTION 1.800Å

e7eteB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,JBU,MG ; X-RAY DIFFRACTION 1.800Å

e7eteC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,JBU,MG ; X-RAY DIFFRACTION 1.800Å

e7etfA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR,SSN ; X-RAY DIFFRACTION 1.980Å

e7etfB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR,SSN ; X-RAY DIFFRACTION 1.980Å

e7etfC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,MN,PYR,SSN ; X-RAY DIFFRACTION 1.980Å

e7etgA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR,SSN ; X-RAY DIFFRACTION 1.900Å

e7etgB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR,SSN ; X-RAY DIFFRACTION 1.900Å

e7etgC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CO,PYR,SSN ; X-RAY DIFFRACTION 1.900Å

e7ethA1[A:3-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CBG,PYR,ZN ; X-RAY DIFFRACTION 2.190Å

e7ethB1[B:3-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CBG,PYR,ZN ; X-RAY DIFFRACTION 2.190Å

e7ethC1[C:3-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,CBG,PYR,ZN ; X-RAY DIFFRACTION 2.190Å

e7etiA1[A:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,HBA,PYR,ZN ; X-RAY DIFFRACTION 1.850Å

e7etiB1[B:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,HBA,PYR,ZN ; X-RAY DIFFRACTION 1.850Å

e7etiC1[C:1-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-hydroxy-2-oxoheptanedioate aldolase ; ligands: CA,HBA,PYR,ZN ; X-RAY DIFFRACTION 1.850Å

e7v8tA1[A:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: IOD,P6G ; X-RAY DIFFRACTION 2.48Å

e7v8tB1[B:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: IOD,P6G ; X-RAY DIFFRACTION 2.48Å

e7v8tC1[C:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: IOD ; X-RAY DIFFRACTION 2.48Å

e7v8tD1[D:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: P6G ; X-RAY DIFFRACTION 2.48Å

e7v8tE1[E:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: IOD ; X-RAY DIFFRACTION 2.48Å

e7v8tF1[F:2-254] Image Pymol Jmol Links: PDB, SCOP, CATH

2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase ; ligands: IOD,P6G ; X-RAY DIFFRACTION 2.48Å

e7nujB1[B:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG ; X-RAY DIFFRACTION 1.90Å

e7nr1A1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG ; X-RAY DIFFRACTION 2.30Å

e7nr1B1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; X-RAY DIFFRACTION 2.30Å

e7nujA1[A:1-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG ; X-RAY DIFFRACTION 1.90Å

e8adqA1[A:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3GR,3PY,BR,K,MG,PEG ; X-RAY DIFFRACTION 1.60Å

e7nnkA1[A:0-249] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3PY,MG ; X-RAY DIFFRACTION 1.80Å

e7nnkB1[B:0-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: MG ; X-RAY DIFFRACTION 1.80Å

e7o5iA1[A:-1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,PEG ; X-RAY DIFFRACTION 1.35Å

e7o5rA1[A:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

hydroxyketoacid aldolase ; ligands: BR,K,MN ; X-RAY DIFFRACTION 1.65Å

e7o5rB1[B:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

hydroxyketoacid aldolase ; ligands: K,MN ; X-RAY DIFFRACTION 1.65Å

e7o5vAAA1[AAA:1-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3PY,BR,K,MG ; X-RAY DIFFRACTION 1.95Å

e7o5vBBB1[BBB:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,MG ; X-RAY DIFFRACTION 1.95Å

e7o5wAAA1[AAA:1-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,MG,PEG ; X-RAY DIFFRACTION 1.20Å

e7o5wBBB1[BBB:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,MG,PEG ; X-RAY DIFFRACTION 1.20Å

e7o87AAA1[AAA:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3PY,BR,K,MG,PEG ; X-RAY DIFFRACTION 1.50Å

e7o87BBB1[BBB:1-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3PY,BR,K,MG,PEG ; X-RAY DIFFRACTION 1.50Å

e7o9rAAA1[AAA:1-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,MG ; X-RAY DIFFRACTION 1.85Å

e7o9rBBB1[BBB:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: BR,K,MG,PEG ; X-RAY DIFFRACTION 1.85Å

e7obuA1[A:0-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: K,MG ; X-RAY DIFFRACTION 1.2Å

e7obuB1[B:1-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HpcH/HpaI aldolase ; ligands: 3PY,K,MG ; X-RAY DIFFRACTION 1.2Å

e1sgjA1[A:4-234] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

citrate lyase, beta subunit ; ligands: MG,OAA ; X-RAY DIFFRACTION 1.84Å

e4l9yC1[C:2-317] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALYL-COA LYASE ; ligands: CL,MG ; X-RAY DIFFRACTION 2.1Å

e4l7zA1[A:2-348] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HPCH/HPAI ALDOLASE ; ligands: TRS ; X-RAY DIFFRACTION 2.5Å

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.

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