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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

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

X: Phosphorylase/hydrolase-like
H: Zn-dependent exopeptidases
T: Zn-dependent exopeptidases
F: Peptidase_M14

PF00246 CL0105

Representatives:

e1m4lA1[A:1-307] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ZN ; X-RAY DIFFRACTION 1.25Å

e1zg7C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: P20,ZN ; X-RAY DIFFRACTION 1.75Å

e1f57A1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: DCY,ZN ; X-RAY DIFFRACTION 1.75Å

e1zg8C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L98,ZN ; X-RAY DIFFRACTION 2.0Å

e2pj8C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 17A,ZN ; X-RAY DIFFRACTION 1.7Å

e1armA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HG-CARBOXYPEPTIDASE A=ALPHA= (COX) ; ligands: CU,HG,TRS ; X-RAY DIFFRACTION

e2pj5C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 11B,ZN ; X-RAY DIFFRACTION 1.65Å

e1ee3P1[P:1-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (CARBOXYPEPTIDASE A) ; ligands: CD ; X-RAY DIFFRACTION 1.700Å

e2pj6A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 059,ZN ; X-RAY DIFFRACTION 1.6Å

e1bavB1[B:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A ; ligands: BIP,ZN ; X-RAY DIFFRACTION 1.6Å

e1zlhA1[A:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: ZN ; X-RAY DIFFRACTION 1.67Å

e1dtdA1[A:363-663] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A2 ; ligands: GLU,ZN ; X-RAY DIFFRACTION 1.65Å

e2pj1B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 578,ZN ; X-RAY DIFFRACTION 1.64Å

e1kwmB2[B:4-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: ZN ; X-RAY DIFFRACTION 1.6Å

e2pj4B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 414,ZN ; X-RAY DIFFRACTION 2.0Å

e2pj3C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 86A,ZN ; X-RAY DIFFRACTION 1.64Å

e2pj0B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 922,ZN ; X-RAY DIFFRACTION 1.65Å

e2pjcA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 343,ZN ; X-RAY DIFFRACTION 1.74Å

e1cbxA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: BZS,ZN ; X-RAY DIFFRACTION

e2pj2A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 864,ZN ; X-RAY DIFFRACTION 1.95Å

e2pj8B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 17A,ZN ; X-RAY DIFFRACTION 1.7Å

e1cpxA1[A:3-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (CARBOXYPEPTIDASE A) ; ligands: OH,ZN ; X-RAY DIFFRACTION 2.0Å

e1cpsA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

CARBOXYPEPTIDASE A ; ligands: CPM,ZN ; X-RAY DIFFRACTION 2.25Å

e2boaA2[A:1001-1307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: GOL,NAG,ZN ; X-RAY DIFFRACTION 2.200Å

e2pj1A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 578,ZN ; X-RAY DIFFRACTION 1.64Å

e1zg7B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: P20,ZN ; X-RAY DIFFRACTION 1.75Å

e2pj1C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 578,ZN ; X-RAY DIFFRACTION 1.64Å

e2pj4A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 414,ZN ; X-RAY DIFFRACTION 2.0Å

e8cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: AGF,ZN ; X-RAY DIFFRACTION 2.0Å

e2pizC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 606,ZN ; X-RAY DIFFRACTION 1.6Å

e2pizA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 606,ZN ; X-RAY DIFFRACTION 1.6Å

e2pj5B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 11B,ZN ; X-RAY DIFFRACTION 1.65Å

e3cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: GLY,TYR,ZN ; X-RAY DIFFRACTION

e1heeA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: LHY,ZN ; X-RAY DIFFRACTION 1.75Å

e1ellP1[P:1-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: CD ; X-RAY DIFFRACTION 1.760Å

e2pjaA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 33Z,ZN ; X-RAY DIFFRACTION 1.7Å

e1kwmA2[A:4-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: CIT,ZN ; X-RAY DIFFRACTION 1.6Å

e1heeB1[B:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: LHY,ZN ; X-RAY DIFFRACTION 1.75Å

e2pj3A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 86A,ZN ; X-RAY DIFFRACTION 1.64Å

e1zg8B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L98,ZN ; X-RAY DIFFRACTION 2.0Å

e1iy7A1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: CXA,ZN ; X-RAY DIFFRACTION 2.0Å

e1cpb.1[A:4-85,B:93-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; X-RAY DIFFRACTION 2.8Å

e1hduB1[B:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ING,ZN ; X-RAY DIFFRACTION 1.75Å

e2pj0A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 922,ZN ; X-RAY DIFFRACTION 1.65Å

e2piyC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 528,ZN ; X-RAY DIFFRACTION 1.43Å

e2pjbA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 983,ZN ; X-RAY DIFFRACTION 1.7Å

e1heeE1[E:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: LHY,ZN ; X-RAY DIFFRACTION 1.75Å

e1hdqA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: INF,ZN ; X-RAY DIFFRACTION 2.3Å

e1zg9C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L06,ZN ; X-RAY DIFFRACTION 2.0Å

e1z5rA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

procarboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 1.4Å

e2pj8A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 17A,ZN ; X-RAY DIFFRACTION 1.7Å

e2abzA1[A:4-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: ZN ; X-RAY DIFFRACTION 2.1Å

e2ctcA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: HFA,ZN ; X-RAY DIFFRACTION

e6cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ZAF,ZN ; X-RAY DIFFRACTION 2.0Å

e2bo9C1[C:4-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: MPD,NAG,VAL,ZN ; X-RAY DIFFRACTION 1.600Å

e2boaB2[B:1001-1307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: GOL,NAG,ZN ; X-RAY DIFFRACTION 2.200Å

e1bavC1[C:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A ; ligands: BIP,ZN ; X-RAY DIFFRACTION 1.6Å

e2ctbA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ZN ; X-RAY DIFFRACTION

e1zg9B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L06,ZN ; X-RAY DIFFRACTION 2.0Å

e2pj5A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 11B,ZN ; X-RAY DIFFRACTION 1.65Å

e1zliA1[A:5-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.0Å

e2pjbB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 983,ZN ; X-RAY DIFFRACTION 1.7Å

e5cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ZN ; X-RAY DIFFRACTION

e1hduD1[D:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ING,ZN ; X-RAY DIFFRACTION 1.75Å

e1bavD1[D:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A ; ligands: BIP,ZN ; X-RAY DIFFRACTION 1.6Å

e2pj2B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 864,ZN ; X-RAY DIFFRACTION 1.95Å

e7cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: FVF,ZN ; X-RAY DIFFRACTION 2.0Å

e2pjaB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 33Z,ZN ; X-RAY DIFFRACTION 1.7Å

e1hduA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ING,ZN ; X-RAY DIFFRACTION 1.75Å

e2pj2C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 864,ZN ; X-RAY DIFFRACTION 1.95Å

e2abzB1[B:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: ZN ; X-RAY DIFFRACTION 2.1Å

e1zg8A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L98,ZN ; X-RAY DIFFRACTION 2.0Å

e2pj7B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 235,ZN ; X-RAY DIFFRACTION 1.77Å

e2pj0C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 922,ZN ; X-RAY DIFFRACTION 1.65Å

e1hduE1[E:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ING,ZN ; X-RAY DIFFRACTION 1.75Å

e2piyA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 528,ZN ; X-RAY DIFFRACTION 1.43Å

e2pj7C1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 235,ZN ; X-RAY DIFFRACTION 1.77Å

e2bo9A1[A:4-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: MPD,NAG,VAL,ZN ; X-RAY DIFFRACTION 1.600Å

e2pjcC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 343,ZN ; X-RAY DIFFRACTION 1.74Å

e1zg7A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: P20,ZN ; X-RAY DIFFRACTION 1.75Å

e2pjbC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 983,ZN ; X-RAY DIFFRACTION 1.7Å

e1z5rB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

procarboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 1.4Å

e2pj7A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 235,ZN ; X-RAY DIFFRACTION 1.77Å

e2pizB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 606,ZN ; X-RAY DIFFRACTION 1.6Å

e2pcuA1[A:5-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A4 ; ligands: ASP,GOL,NAG,SCN,ZN ; X-RAY DIFFRACTION 1.600Å

e1ayeA2[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE A2 ; ligands: ZN ; X-RAY DIFFRACTION 1.8Å

e1elmP1[P:1-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: CD ; X-RAY DIFFRACTION 2.000Å

e2jewA1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 720,ZN ; X-RAY DIFFRACTION 1.40Å

e1bavA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A ; ligands: BIP,ZN ; X-RAY DIFFRACTION 1.6Å

e2pj9A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 281,ZN ; X-RAY DIFFRACTION 1.56Å

e1ymeA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ALPHA ; ligands: ZN ; X-RAY DIFFRACTION 1.53Å

e2piyB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 528,ZN ; X-RAY DIFFRACTION 1.43Å

e1nsaA2[A:4-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROCARBOXYPEPTIDASE B ; ligands: BEN,ZN ; X-RAY DIFFRACTION 2.3Å

e4cpaB1[B:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: GLY,ZN ; X-RAY DIFFRACTION

e1zg9A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE B ; ligands: L06,ZN ; X-RAY DIFFRACTION 2.0Å

e2pjcB1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 343,ZN ; X-RAY DIFFRACTION 1.74Å

e1z5rC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

procarboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 1.4Å

e1arlA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

APO-CARBOXYPEPTIDASE A=ALPHA= (COX) ; X-RAY DIFFRACTION

e1heeD1[D:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: LHY,ZN ; X-RAY DIFFRACTION 1.75Å

e4cpaA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: GLY,ZN ; X-RAY DIFFRACTION

e2pjaC1[C:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 33Z,ZN ; X-RAY DIFFRACTION 1.7Å

e2pj3B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: 86A,ZN ; X-RAY DIFFRACTION 1.64Å

e1pytB1[B:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROCARBOXYPEPTIDASE A ; ligands: ZN ; X-RAY DIFFRACTION 2.35Å

e2rfhA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A1 ; ligands: 23N,ZN ; X-RAY DIFFRACTION 1.7Å

e2c1cA1[A:7-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: Y1,ZN ; X-RAY DIFFRACTION 2.3Å

e2c1cB1[B:7-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: Y1,ZN ; X-RAY DIFFRACTION 2.3Å

e1uwyA2[A:1-296] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE M ; ligands: ZN ; X-RAY DIFFRACTION 3.0Å

e1qmuA2[A:4-304] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE GP180 RESIDUES 503-882 ; ligands: SO4,ZN ; X-RAY DIFFRACTION 2.700Å

e3gljA2[A:4-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: GOL,ZN ; X-RAY DIFFRACTION 1.880Å

e3oslA1[A:118-423] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ZN ; X-RAY DIFFRACTION 6.00Å

e3lmsA1[A:4-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: CA,CL,GLY,GOL,K,ZN ; X-RAY DIFFRACTION 2.50Å

e3hlpA1[A:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH

Carboxypeptidase A1 (Pancreatic) ; ligands: MPD,MRD,ZN ; X-RAY DIFFRACTION 1.6Å

e3mn8A1[A:29-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LP15968p ; ligands: GEM,GOL,NAG,ZN ; X-RAY DIFFRACTION 2.7Å

e3qnvA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

CARBOXYPEPTIDASE T ; ligands: GOL,SO4,ZN ; X-RAY DIFFRACTION 1.69Å

e3v38A1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: GOL,SO4,ZN ; X-RAY DIFFRACTION 1.5Å

e3v7zA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase T ; ligands: CA,GEM,GOL,NA,SO4,ZN ; X-RAY DIFFRACTION 1.61Å

e3dgvA2[A:4-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: MLI,NAG,SO4,ZN ; X-RAY DIFFRACTION 2.5Å

e3d66A2[A:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: NAG,ZN ; X-RAY DIFFRACTION 3.10Å

e2v77A1[A:1-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A1 ; ligands: EPE,PAY,ZN ; X-RAY DIFFRACTION 1.60Å

e2nsmA1[A:-1-318] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE N CATALYTIC CHAIN ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e4a94A1[A:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: NO3,ZN ; X-RAY DIFFRACTION 1.7Å

e3prtA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

Carboxypeptidase T ; ligands: CA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.66Å

e4djlA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: CA,CXA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.55Å

e4dukA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase T ; ligands: BZS,CA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.57Å

e1pcaA2[A:1-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROCARBOXYPEPTIDASE A PCPA ; ligands: VAL,ZN ; X-RAY DIFFRACTION

e3dgvB2[B:4-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: MLI,NAG,SO4,ZN ; X-RAY DIFFRACTION 2.5Å

e3d66B2[B:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: NAG,ZN ; X-RAY DIFFRACTION 3.10Å

e3d66C2[C:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: NAG,ZN ; X-RAY DIFFRACTION 3.10Å

e3d67A2[A:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: GEM,NAG,ZN ; X-RAY DIFFRACTION 3.40Å

e3d67B2[B:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: GEM,NAG,ZN ; X-RAY DIFFRACTION 3.40Å

e3d67C2[C:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: GEM,NAG,ZN ; X-RAY DIFFRACTION 3.40Å

e3d68A2[A:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ARG,NAG,ZN ; X-RAY DIFFRACTION 2.80Å

e3d68B2[B:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ARG,NAG,ZN ; X-RAY DIFFRACTION 2.80Å

e3d68C2[C:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ARG,NAG,ZN ; X-RAY DIFFRACTION 2.80Å

e2v77B1[B:1-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A1 ; ligands: EPE,PAY,ZN ; X-RAY DIFFRACTION 1.60Å

e3fjuA1[A:2-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: ACT,CAC,NA,ZN ; X-RAY DIFFRACTION 1.60Å

e3oslC1[C:118-423] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ZN ; X-RAY DIFFRACTION 6.00Å

e3fx6A1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: BPX,ZN ; X-RAY DIFFRACTION 1.85Å

e3fx6C1[C:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: BPX,ZN ; X-RAY DIFFRACTION 1.85Å

e3fx6E1[E:1-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: BPX,ZN ; X-RAY DIFFRACTION 1.85Å

e3fvlA1[A:1-307] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Carboxypeptidase A1 ; ligands: BHK,ZN ; X-RAY DIFFRACTION 1.85Å

e3fvlC1[C:1-307] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Carboxypeptidase A1 ; ligands: BHK,ZN ; X-RAY DIFFRACTION 1.85Å

e3fvlE1[E:1-307] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Carboxypeptidase A1 ; ligands: BHK,ZN ; X-RAY DIFFRACTION 1.85Å

e3i1uA1[A:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A1 (PANCREATIC) ; ligands: BTW,GOL,ZN ; X-RAY DIFFRACTION 1.39Å

e3hlpB1[B:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH

Carboxypeptidase A1 (Pancreatic) ; ligands: MPD,MRD,ZN ; X-RAY DIFFRACTION 1.6Å

e3huvA1[A:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A1 (PANCREATIC) ; ligands: ZN ; X-RAY DIFFRACTION 1.9Å

e3kgqA1[A:3-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: ACN,CIT,FMT,GOL,NA,ZN ; X-RAY DIFFRACTION 1.698Å

e3mn8B2[B:28-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LP15968p ; ligands: GEM,NAG,ZN ; X-RAY DIFFRACTION 2.7Å

e3mn8C2[C:30-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LP15968p ; ligands: GEM,GOL,NAG,ZN ; X-RAY DIFFRACTION 2.7Å

e3mn8D2[D:27-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LP15968p ; ligands: GEM,NAG,ZN ; X-RAY DIFFRACTION 2.7Å

e4a94B1[B:6-307] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: NO3,ZN ; X-RAY DIFFRACTION 1.7Å

e3d4uA1[A:7-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B2 ; ligands: ACT,SO4,ZN ; X-RAY DIFFRACTION 1.7Å

e4f8zA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase T ; ligands: BL2,CA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.12Å

e4bd9A1[A:5-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A4 ; ligands: ZN ; X-RAY DIFFRACTION 2.2Å

e4gm5A1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: 0X9,CA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.39Å

e3wabA1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: CAC,DDW,ZN ; X-RAY DIFFRACTION 2.15Å

e3wc5A1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: CAC,DDK,ZN ; X-RAY DIFFRACTION 1.700Å

e3wc6A1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ACT,ZN ; X-RAY DIFFRACTION 1.65Å

e3wc7A1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: EF1,ZN ; X-RAY DIFFRACTION 1.900Å

e4iavA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: CA,CXA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.35Å

e4ihmA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: CA,GOL,SO4,ZN ; X-RAY DIFFRACTION 1.29Å

e4ik2A1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE T ; ligands: BL2,CA,SO4,ZN ; X-RAY DIFFRACTION 1.4Å

e3dgvC3[C:90A-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: MLI,SO4,ZN ; X-RAY DIFFRACTION 2.5Å

e4p10A2[A:116-426] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: 2B8,DMS,NAG,ZN ; X-RAY DIFFRACTION 2.0Å

e4uiaA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: FH9,ZN ; X-RAY DIFFRACTION 2.18Å

e4uibA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE B ; ligands: ACT,GOL,GWX,ZN ; X-RAY DIFFRACTION 1.94Å

e4z65A1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: 0X9,ZN ; X-RAY DIFFRACTION 1.25Å

e4uf4A2[A:111-418] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: O2V,ZN

e4uf4B2[B:111-418] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: O2V,ZN

e4ueeA1[A:2-308] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A1 ; ligands: LA9,ZN ; X-RAY DIFFRACTION 2.27Å

e4ueeB1[B:3-308] Image Pymol Jmol Links: PDB, SCOP, CATH

CARBOXYPEPTIDASE A1 ; ligands: LA9,ZN ; X-RAY DIFFRACTION 2.27Å

e4uefA1[A:113-418] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: TJE,ZN

e4uefB1[B:112-418] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: TJE,ZN

e4uezA1[A:113-418] Image Pymol Jmol Links: PDB, SCOP, CATH

HUMAN CARBOXYPEPTIDASE A1 ; ligands: LFF,ZN ; X-RAY DIFFRACTION 2.29Å

e4uezB1[B:112-418] Image Pymol Jmol Links: PDB, SCOP, CATH

HUMAN CARBOXYPEPTIDASE A1 ; ligands: LFF,ZN ; X-RAY DIFFRACTION 2.29Å

e5hvfA1[A:94-399] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: FLC,NAG,ZN ; X-RAY DIFFRACTION 2.850Å

e5hvgA1[A:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ACT,NAG,ZN ; X-RAY DIFFRACTION 3.050Å

e5hvgC1[C:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: ACT,ZN ; X-RAY DIFFRACTION 3.050Å

e5hvhA1[A:94-401] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B2 ; ligands: NAG,ZN ; X-RAY DIFFRACTION 3.000Å

e5lrgA1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.02Å

e5lrgB1[B:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.02Å

e5lrgC1[C:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.02Å

e5lrjA1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.20Å

e5lrjB1[B:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.20Å

e5lrjC1[C:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.20Å

e5lrkA1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.30Å

e5lrkB1[B:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.30Å

e5lrkC1[C:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ZN ; X-RAY DIFFRACTION 2.30Å

e5lydA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: 7B0,ZN ; X-RAY DIFFRACTION 2.02Å

e5lyfA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: 7B6,ZN ; X-RAY DIFFRACTION 2.01Å

e5lyiA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: T4F,ZN ; X-RAY DIFFRACTION 1.64Å

e5lylA1[A:6-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: T5F,ZN ; X-RAY DIFFRACTION 1.83Å

e5j1qA1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH

Carboxypeptidase B ; ligands: CXA,ZN ; X-RAY DIFFRACTION 1.74Å

e5jc6A1[A:6-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase B ; ligands: ACT,ZN ; X-RAY DIFFRACTION 1.40Å

e5om9A1[A:1-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: O2S,ZN ; X-RAY DIFFRACTION 1.77Å

e5om9B2[B:1-308] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase A1 ; ligands: O2S,ZN ; X-RAY DIFFRACTION 1.77Å

e5hxdA1[A:1-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein MpaA ; ligands: CAC,ZN ; X-RAY DIFFRACTION 2.6Å

e5hxdB1[B:1-237] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Protein MpaA ; ligands: CAC,ZN ; X-RAY DIFFRACTION 2.6Å

e5mrvA1[A:23-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase O ; ligands: NAG,ZN ; X-RAY DIFFRACTION 1.854Å

e5mrvB1[B:23-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carboxypeptidase O ; ligands: NAG,ZN ; X-RAY DIFFRACTION 1.854Å

e5myhA1[A:1-323] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: 3K0,CA,ZN

Next

e4okoD1[D:4-304] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Rapid Encystment Phenotype Protein 34 KDa ; ligands: ACT,ZN ; X-RAY DIFFRACTION 2.05Å

e1jqgA2[A:1-310] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE A ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e1h8lA2[A:4-304] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE GP180 RESIDUES 503-882 ; ligands: GEM,NAG,SO4,ZN ; X-RAY DIFFRACTION 2.600Å

e1obrA1[A:1-323] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CARBOXYPEPTIDASE T ; ligands: CA,SO4,ZN ; X-RAY DIFFRACTION

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