7AIP | pdb_00007aip

Structure of Human Potassium Chloride Transporter KCC1 in NaCl (Reference Map)

ELECTRON MICROSCOPY

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6Y5V

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.0068
f_angle_d	0.7825
f_chiral_restr	0.0482
f_bond_d	0.0064
f_plane_restr	0.0046

Sample
Homodimeric complex of human potassium chloride transporter KCC1 in complex with ATP and magnesium

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	818813
Reported Resolution (Å)	3.12
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C2

Map-Model Fitting and Refinement
Id	1 (6Y5V)
Refinement Space	REAL
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details	Model fitting with UCSF Chimera, sequence replacement with Chainsaw, manual refinement with Coot, and then real-space automated refinement with Phenix was done.

Data Acquisition
Detector Type	GATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)	40

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
IMAGE ACQUISITION	EPU
MODEL FITTING	UCSF Chimera
MODEL REFINEMENT	Coot
RECONSTRUCTION	cryoSPARC	2

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION