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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

X: EF-hand
H: EF-hand-related
T: EF-hand
F: EF-hand_7

PF13499 CL0220

Representatives:

e2pvbA1[A:0-108] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

PROTEIN (PARVALBUMIN) ; ligands: CA,FMT,NH4 ; X-RAY DIFFRACTION 0.91Å

e1exrA2[A:80-147] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALMODULIN ; ligands: CA ; X-RAY DIFFRACTION 1.000Å

e1omrA2[A:97-202] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RECOVERIN ; ligands: CA ; X-RAY DIFFRACTION 1.5Å

e1m45A2[A:82-149] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Myosin light chain ; X-RAY DIFFRACTION 1.640Å

e2obhA1[A:26-101] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CENTRIN-2 ; X-RAY DIFFRACTION 1.8Å

e2obhA2[A:102-168] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CENTRIN-2 ; ligands: CA ; X-RAY DIFFRACTION 1.8Å

e1y1xA2[A:94-191] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Leishmania Major Homolog of Programmed Cell Death 6 Protein ; ligands: SO4 ; X-RAY DIFFRACTION 1.87Å

e1xo5A1[A:103-191] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium and integrin-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 1.99Å

e1s6cA1[A:122-216] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

KV4 POTASSIUM CHANNEL-INTERACTING PROTEIN KCHIP1B ; ligands: CA ; X-RAY DIFFRACTION 2.0Å

e4mspB6[B:121-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidyl-prolyl cis-trans isomerase FKBP14 ; ligands: 1PE,CA,PGO ; X-RAY DIFFRACTION 1.9Å

e1kfuL2[L:606-700] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

M-CALPAIN LARGE SUBUNIT ; X-RAY DIFFRACTION 2.5Å

e2r2iA4[A:86-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Guanylyl cyclase-activating protein 1 ; ligands: BME,CA,MYR ; X-RAY DIFFRACTION 2.0Å

e1kfxL2[L:606-700] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

M-CALPAIN LARGE SUBUNIT ; X-RAY DIFFRACTION 3.15Å

e1y1aA2[A:103-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium and integrin binding 1 (calmyrin) ; ligands: CA ; X-RAY DIFFRACTION 2.300Å

e1u5iA2[A:606-700] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain 2, large [catalytic] subunit precursor ; X-RAY DIFFRACTION 2.63Å

e3bowA5[A:606-704] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain-2 catalytic subunit ; ligands: CA ; X-RAY DIFFRACTION 2.400Å

e1y1aB2[B:103-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium and integrin binding 1 (calmyrin) ; ligands: CA ; X-RAY DIFFRACTION 2.300Å

e1s1eA1[A:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

KV CHANNEL INTERACTING PROTEIN 1 ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e3df0A8[A:606-701] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain-2 catalytic subunit ; ligands: CA ; X-RAY DIFFRACTION 2.95Å

e3bowB1[B:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain small subunit 1 ; ligands: CA ; X-RAY DIFFRACTION 2.400Å

e2i2rN2[N:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e3df0B1[B:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain small subunit 1 ; ligands: CA ; X-RAY DIFFRACTION 2.95Å

e2i2rO2[O:122-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1np8A4[A:88-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CD ; X-RAY DIFFRACTION 2.0Å

e2i2rF1[F:117-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1np8B2[B:588-659] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CD ; X-RAY DIFFRACTION 2.0Å

e2i2rH1[H:117-211] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1dguA1[A:95-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALCIUM-SATURATED CIB ; SOLUTION NMR

e1aj5A1[A:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; X-RAY DIFFRACTION 2.3Å

e1dgvA1[A:95-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

APO CIB ; SOLUTION NMR

e1aj5B1[B:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; X-RAY DIFFRACTION 2.3Å

e2l4hA1[A:103-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALCIUM AND INTEGRIN-BINDING PROTEIN 1 ; ligands: CA ; SOLUTION NMR

e1alvB1[B:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; ligands: CA ; X-RAY DIFFRACTION 1.9Å

e1alwA1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; ligands: CA,ISA ; X-RAY DIFFRACTION 2.03Å

e2lm5A2[A:103-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALCIUM AND INTEGRIN-BINDING PROTEIN 1 ; ligands: CA ; SOLUTION NMR

e2i2rE4[E:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1alwB1[B:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; ligands: CA,ISA ; X-RAY DIFFRACTION 2.03Å

e2i2rG4[G:122-215] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1df0B1[B:89-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; X-RAY DIFFRACTION 2.6Å

e2i2rP4[P:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e1dviA1[A:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e1dviB1[B:175-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALPAIN ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e2i2rM4[M:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Kv channel-interacting protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.35Å

e2nz0A4[A:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

KV CHANNEL-INTERACTING PROTEIN 1 ; ligands: CA ; X-RAY DIFFRACTION 3.2Å

e1nx0A1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e2nz0C4[C:122-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

KV CHANNEL-INTERACTING PROTEIN 1 ; ligands: CA ; X-RAY DIFFRACTION 3.2Å

e1nx0B1[B:471-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e1nx1A1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA ; X-RAY DIFFRACTION 2Å

e1xo5B1[B:103-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium and integrin-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 1.99Å

e2l2eA3[A:96-190] Image Pymol Jmol Links: PDB, SCOP, CATH

CALCIUM-BINDING PROTEIN NCS-1 ; SOLUTION NMR

e1nx1B1[B:471-566] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA ; X-RAY DIFFRACTION 2Å

e1nx2A1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA ; X-RAY DIFFRACTION 2.2Å

e1nx3A1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calcium-dependent protease, small subunit ; ligands: CA,ISA ; X-RAY DIFFRACTION

e1u5iB3[B:89-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain small subunit 1 ; X-RAY DIFFRACTION 2.63Å

e4phnA1[A:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain small subunit 1 ; ligands: CA ; X-RAY DIFFRACTION 1.79Å

e4phnB1[B:171-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calpain small subunit 1 ; ligands: CA ; X-RAY DIFFRACTION 1.79Å

e1jf0A2[A:7-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Obelin ; ligands: CZH ; X-RAY DIFFRACTION 1.82Å

e1sl9A3[A:5-107] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Obelin ; ligands: CZH ; X-RAY DIFFRACTION 1.17Å

e1qv1A3[A:5-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Obelin ; ligands: CA,CZH,GOL ; X-RAY DIFFRACTION 1.1Å

e4mryA1[A:9-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Obelin ; ligands: CA,CEI ; X-RAY DIFFRACTION 1.299Å

e1sl7A3[A:11-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

OBELIN ; ligands: CA ; X-RAY DIFFRACTION 2.2Å

e1wdcB1[B:12-83] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SCALLOP MYOSIN ; ligands: MG ; X-RAY DIFFRACTION 2.02Å

e1auiB2[B:86-169] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SERINE/THREONINE PHOSPHATASE 2B ; ligands: CA ; X-RAY DIFFRACTION 2.1Å

e1hqvA2[A:94-188] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROGRAMMED CELL DEATH PROTEIN 6 ; ligands: CA ; X-RAY DIFFRACTION 2.3Å

e5ve9B1[B:7024-7106] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 ; ligands: CA ; X-RAY DIFFRACTION 2.800Å

e1ij5A1[A:286-353] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PLASMODIAL SPECIFIC LAV1-2 PROTEIN ; X-RAY DIFFRACTION 3.0Å

e1ij5A4[A:222-285] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PLASMODIAL SPECIFIC LAV1-2 PROTEIN ; X-RAY DIFFRACTION 3.0Å

e5e1jA3[A:321-402] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Two pore calcium channel protein 1 ; ligands: BA,CA ; X-RAY DIFFRACTION 3.30Å

e1jbaA2[A:93-190] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (GUANYLATE CYCLASE ACTIVATING PROTEIN 2) ; ligands: CA ; SOLUTION NMR

e1jfjA1[A:1-66] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CALCIUM-BINDING PROTEIN ; SOLUTION NMR

e1oqpA1[A:93-169] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Caltractin ; SOLUTION NMR

e1ozsA1[A:89-161] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Troponin C, slow skeletal and cardiac muscles ; ligands: CA ; SOLUTION NMR

e2lhiA1[A:0-77] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calmodulin,Serine/threonine-protein phosphatase 2B catalytic subunit A1 ; ligands: CA ; SOLUTION NMR

e2lhiA2[A:78-151] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Calmodulin,Serine/threonine-protein phosphatase 2B catalytic subunit A1 ; ligands: CA ; SOLUTION NMR

e2lvvA2[A:132-205] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAGELLAR CALCIUM-BINDING PROTEIN TB-24 ; SOLUTION NMR

e2sasA1[A:1-93] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SARCOPLASMIC CALCIUM-BINDING PROTEIN ; ligands: CA ; X-RAY DIFFRACTION

e3j8hA8[A:4071-4131] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ryanodine receptor 1 ; ELECTRON MICROSCOPY

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.

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

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