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- PDB-2ear: P21 crystal of the SR CA2+-ATPase with bound TG -

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Basic information

Entry
Database: PDB / ID: 2ear
TitleP21 crystal of the SR CA2+-ATPase with bound TG
ComponentsSarcoplasmic/endoplasmic reticulum calcium ATPase 1
KeywordsHYDROLASE / MEMBRANE PROTEIN / P-TYPE ATPASE / HAD FOLD / Ca2+ / ion pump
Function / homology
Function and homology information


positive regulation of cardiac muscle cell contraction / positive regulation of calcium ion import into sarcoplasmic reticulum / positive regulation of ATPase-coupled calcium transmembrane transporter activity / positive regulation of fast-twitch skeletal muscle fiber contraction / H zone / regulation of striated muscle contraction / calcium ion import into sarcoplasmic reticulum / negative regulation of striated muscle contraction / P-type Ca2+ transporter / P-type calcium transporter activity ...positive regulation of cardiac muscle cell contraction / positive regulation of calcium ion import into sarcoplasmic reticulum / positive regulation of ATPase-coupled calcium transmembrane transporter activity / positive regulation of fast-twitch skeletal muscle fiber contraction / H zone / regulation of striated muscle contraction / calcium ion import into sarcoplasmic reticulum / negative regulation of striated muscle contraction / P-type Ca2+ transporter / P-type calcium transporter activity / I band / endoplasmic reticulum-Golgi intermediate compartment / sarcoplasmic reticulum membrane / sarcoplasmic reticulum / calcium ion transport / calcium ion binding / endoplasmic reticulum membrane / perinuclear region of cytoplasm / endoplasmic reticulum / ATP hydrolysis activity / ATP binding / membrane
Similarity search - Function
Calcium-transporting ATPase, transmembrane domain / Calcium-transporting ATPase, transmembrane domain / P-type ATPase, subfamily IIA, SERCA-type / Calcium-transporting ATPase, cytoplasmic transduction domain A / Calcium-transporting ATPase, cytoplasmic transduction domain A / haloacid dehalogenase-like hydrolase / Calcium-transporting ATPase, cytoplasmic domain N / Calcium-transporting ATPase, cytoplasmic domain N / Cation-transporting P-type ATPase, C-terminal / Cation transporting ATPase, C-terminus ...Calcium-transporting ATPase, transmembrane domain / Calcium-transporting ATPase, transmembrane domain / P-type ATPase, subfamily IIA, SERCA-type / Calcium-transporting ATPase, cytoplasmic transduction domain A / Calcium-transporting ATPase, cytoplasmic transduction domain A / haloacid dehalogenase-like hydrolase / Calcium-transporting ATPase, cytoplasmic domain N / Calcium-transporting ATPase, cytoplasmic domain N / Cation-transporting P-type ATPase, C-terminal / Cation transporting ATPase, C-terminus / Cation transporter/ATPase, N-terminus / Cation-transporting P-type ATPase, N-terminal / Cation transporter/ATPase, N-terminus / P-type ATPase, cytoplasmic domain N / P-type ATPase actuator domain / HAD superfamily/HAD-like / P-type ATPase, haloacid dehalogenase domain / P-type ATPase, phosphorylation site / P-type ATPase, cytoplasmic domain N / E1-E2 ATPases phosphorylation site. / P-type ATPase, A domain superfamily / P-type ATPase / P-type ATPase, transmembrane domain superfamily / haloacid dehalogenase-like hydrolase / HAD superfamily / HAD-like superfamily / Distorted Sandwich / Up-down Bundle / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Chem-TG1 / Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.1 Å
AuthorsTakahashi, M. / Kondou, Y. / Toyoshima, C.
Citation
Journal: Proc.Natl.Acad.Sci.Usa / Year: 2007
Title: Interdomain communication in calcium pump as revealed in the crystal structures with transmembrane inhibitors
Authors: Takahashi, M. / Kondou, Y. / Toyoshima, C.
#1: Journal: Nature / Year: 2000
Title: Crystal structure of the calcium pump of sarcoplasmic reticulum at 2.6 A resolution
Authors: Toyoshima, C. / Nakasako, M. / Nomura, H. / Ogawa, H.
#2: Journal: Nature / Year: 2002
Title: Structural changes in the calcium pump accompanying the dissociation of calcium
Authors: Toyoshima, C. / Nomura, H.
#3: Journal: Nature / Year: 2004
Title: Crystal structure of the calcium pump with a bound ATP analogue
Authors: Toyoshima, C. / Mizutani, T.
#4: Journal: Nature / Year: 2004
Title: Lumenal gating mechanism revealed in calcium pump crystal structures with phosphate analogues
Authors: Toyoshima, C. / Nomura, H. / Tsuda, T.
#5: Journal: Proc.Natl.Acad.Sci.Usa / Year: 2005
Title: Structural role of countertransport revealed in Ca(2+) pump crystal structure in the absence of Ca(2+)
Authors: Obara, K. / Miyashita, N. / Xu, C. / Toyoshima, I. / Sugita, Y. / Inesi, G. / Toyoshima, C.
History
DepositionFeb 2, 2007Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 27, 2007Provider: repository / Type: Initial release
Revision 1.1Apr 23, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Oct 25, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / entity / pdbx_entity_nonpoly / pdbx_initial_refinement_model / struct_conn / struct_site
Item: _chem_comp.name / _database_2.pdbx_DOI ..._chem_comp.name / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_leaving_atom_flag / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)110,2792
Polymers109,6291
Non-polymers6511
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)62.849, 95.945, 154.493
Angle α, β, γ (deg.)90.00, 94.90, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Sarcoplasmic/endoplasmic reticulum calcium ATPase 1 / Calcium pump 1 / SERCA1 / SR Ca(2+)-ATPase 1 / Calcium-transporting ATPase sarcoplasmic reticulum ...Calcium pump 1 / SERCA1 / SR Ca(2+)-ATPase 1 / Calcium-transporting ATPase sarcoplasmic reticulum type / fast twitch skeletal muscle isoform / Endoplasmic reticulum class 1/2 Ca(2+)ATPase


Mass: 109628.617 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / Tissue: SKELETAL MUSCLE (WHITE) / References: UniProt: P04191, EC: 3.6.3.8
#2: Chemical ChemComp-TG1 / OCTANOIC ACID [3S-[3ALPHA, 3ABETA, 4ALPHA, 6BETA, 6ABETA, 7BETA, 8ALPHA(Z), 9BALPHA]]-6-(ACETYLOXY)-2,3,-3A,4,5,6,6A,7,8,9B-DECAHYDRO-3,3A-DIHYDROXY-3,6,9-TRIMETHYL-8-[(2-METHYL-1-OXO-2-BUTENYL)OX Y]-2-OXO-4-(1-OXOBUTOXY)-AZULENO[4,5-B]FURAN-7-YL ESTER / THAPSIGARGIN


Mass: 650.754 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H50O12
Has protein modificationY
Sequence detailsTHE C-TERMINAL RESIDUES IN UNP ENTRY P04191 ARE FROM 994 TO 1001, DPEDERRK. IN ISOFORM SERCA1A, ...THE C-TERMINAL RESIDUES IN UNP ENTRY P04191 ARE FROM 994 TO 1001, DPEDERRK. IN ISOFORM SERCA1A, THERE IS ONLY ONE C-TERMINAL RESIDUE 994 GLY.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 2

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Sample preparation

CrystalDensity Matthews: 4.23 Å3/Da / Density % sol: 70.95 %
Crystal growTemperature: 283 K / Method: microdialysis / pH: 6.1 / Details: PEG 400, pH 6.1, MICRODIALYSIS, temperature 283K

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Data collection

Diffraction
IDMean temperature (K)Crystal-ID
11001
21001
Diffraction source
SourceSiteBeamlineIDWavelength
SYNCHROTRONSPring-8 BL41XU10.89
SYNCHROTRONSPring-8 BL41XU20.85
Detector
TypeIDDetectorDate
MAR CCD 165 mm1CCDNov 23, 2000
MAR CCD 165 mm2CCDNov 21, 2000
Radiation
IDMonochromatorProtocolMonochromatic (M) / Laue (L)Scattering typeWavelength-ID
1KARKPATRIC-BOETZE TYPE RH-COATED DOUBLE MIRRORSINGLE WAVELENGTHMx-ray1
2KARKPATRIC-BOETZE TYPE RH-COATED DOUBLE MIRRORSINGLE WAVELENGTHMx-ray1
Radiation wavelength
IDWavelength (Å)Relative weight
10.891
20.851
ReflectionResolution: 3.1→20 Å / Num. all: 33292 / Num. obs: 33259 / % possible obs: 99.9 % / Observed criterion σ(F): 5.88 / Observed criterion σ(I): -2 / Redundancy: 6.4 % / Rmerge(I) obs: 0.056 / Net I/σ(I): 27.6
Reflection shellResolution: 3.1→3.18 Å / Redundancy: 5.6 % / Rmerge(I) obs: 0.429 / Mean I/σ(I) obs: 2.7 / % possible all: 99.4

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Processing

Software
NameClassification
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1IWO

1iwo


Resolution: 3.1→14.95 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 1285345.79 / Data cutoff low absF: 0 / Isotropic thermal model: GROUP / Cross valid method: THROUGHOUT / σ(F): 3 / Stereochemistry target values: maximum likelihood
RfactorNum. reflection% reflectionSelection details
Rfree0.284 1425 4.3 %RANDOM
Rwork0.235 ---
all0.236 33127 --
obs0.235 32961 99.5 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 19.2959 Å2 / ksol: 0.196708 e/Å3
Displacement parametersBiso mean: 95.1 Å2
Baniso -1Baniso -2Baniso -3
1--6.17 Å20 Å22.76 Å2
2---15.4 Å20 Å2
3---21.57 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.45 Å0.37 Å
Luzzati d res low-5 Å
Luzzati sigma a0.48 Å0.42 Å
Refinement stepCycle: LAST / Resolution: 3.1→14.95 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7672 0 46 0 7718
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.009
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d22.9
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.68
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
LS refinement shellResolution: 3.1→3.29 Å / Rfactor Rfree error: 0.026 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.43 276 5.1 %
Rwork0.398 5178 -
obs--99.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2ligands.paramligands.top

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