Filter by :
Entry Information
Entry status
(1)
Experimental methods
(3)
Electron Microscopy
(31)
X-ray diffraction
(3)
Solution NMR
(1)
Authors
(57)
Accardi A
(8)
Agarwal S
(8)
Kim ED
(8)
Lee S
(8)
MacKinnon R
(8)
Nimigean C
(8)
Nimigean CM
(8)
Simon A
(8)
Nureki O
(7)
Tao X
(7)
Yamanouchi D
(7)
Chowdhury S
(5)
Pal K
(5)
Kallure GS
(4)
Jin MS
(3)
Kim S
(3)
Lee N
(3)
Lee NY
(3)
Park CS
(3)
Zhao C
(3)
Kallure G
(2)
Kim HJ
(2)
Kim YC
(2)
Kim YG
(2)
Lee EY
(2)
Park S
(2)
Park SB
(2)
Roh EC
(2)
Yuan P
(2)
Ahn JH
(1)
Budelli G
(1)
Butler A
(1)
Cui J
(1)
Deng Z
(1)
Geng Y
(1)
Hsiung Y
(1)
Jeong P
(1)
Jiang Y
(1)
Jo H
(1)
Leonetti MD
(1)
Lind J
(1)
Magleby KL
(1)
Maler L
(1)
Mäler L
(1)
Pagire HS
(1)
Pagire SH
(1)
Papadopoulos E
(1)
Pico AR
(1)
Salkoff L
(1)
Tonggu L
(1)
Unnerstale S
(1)
Unnerståle S
(1)
Wang L
(1)
Wu Y
(1)
Yang Y
(1)
Ye S
(1)
Zhang G
(1)
Homo / hetero assembly
(2)
homo
(18)
hetero
(17)
Assembly composition
(2)
protein structure
(18)
protein/protein complex
(17)
Assembly polymer count
(4)
octamer
(16)
tetramer
(15)
monomer
(3)
dimer
(1)
Resolution distribution
1.5 - 2
(1)
2.0 - 2.5
(1)
2.5 - 3
(12)
3.0 - 3.5
(11)
3.5 - 4
(9)
Release year distribution
2005 - 2010
(3)
2010 - 2015
(2)
2015 - 2020
(6)
2020 - 2025
(28)
2025 - 2030
(10)
Journal
(9)
To be published
(13)
Nat Commun
(8)
Elife
(4)
Proc Natl Acad Sci U S A
(4)
J Med Chem
(2)
Biochemistry
(1)
Life Sci Alliance
(1)
Nature
(1)
Science
(1)
Macromolecules
Organism superkingdom
(1)
Eukaryota
(35)
Organism name
(1)
Homo sapiens
(35)
Molecule name
(13)
BK channel
(35)
BKCA alpha
(35)
Calcium-activated potassium channel subunit alpha-1
(35)
Calcium-activated potassium channel, subfamily M subunit alpha-1
(35)
K(VCA)alpha
(35)
KCa1.1
(35)
Maxi K channel
(35)
MaxiK
(35)
Slo homolog
(35)
Slo-alpha
(35)
Slo1
(35)
Slowpoke homolog
(35)
hSlo
(35)
Molecule type
(1)
Protein
(35)
Gene names
(3)
KCNMA
(35)
KCNMA1
(35)
SLO
(35)
Interacting Molecules
(3)
Calcium-activated potassium channel subunit beta-4
(10)
KCNMB2 ball/chain domain-containing protein
(8)
Leucine-rich repeat-containing protein 26
(7)
Interacting ligands
(13)
CA : CALCIUM ION
(19)
K : POTASSIUM ION
(16)
CLR : CHOLESTEROL
(14)
MG : MAGNESIUM ION
(14)
POV : (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
(14)
AJP : Digitonin
(4)
Y01 : CHOLESTEROL HEMISUCCINATE
(3)
PGW : (1R)-2-{[(S)-{[(2S)-2,3-dihydroxypropyl]oxy}(hydroxy)phosphoryl]oxy}-1-[(hexadecanoyloxy)methyl]ethyl
(9Z)-octadec-9-enoate
(2)
SO4 : SULFATE ION
(2)
A1L04 : 4-[4-(4-chlorophenyl)-3-(trifluoromethyl)-1,2-oxazol-5-yl]benzene-1,3-diol
(1)
A1L4E : 5-azanyl-2-[2,3,5,6-tetrakis(fluoranyl)-4-(trifluoromethyl)phenoxy]phenol
(1)
A1L4F : 5-(5-morpholin-4-ylpentylamino)-2-[2,3,5,6-tetrakis(fluoranyl)-4-(trifluoromethyl)phenoxy]phenol
(1)
NA : SODIUM ION
(1)
Function and Biology
Biological function
(9)
monoatomic ion channel activity
(15)
actin binding
(3)
calcium-activated potassium channel activity
(3)
large conductance calcium-activated potassium channel activity
(3)
metal ion binding
(3)
potassium channel activity
(3)
protein binding
(3)
voltage-gated potassium channel activity
(3)
DNA-binding transcription factor activity
(1)
Biological process
(17)
potassium ion transport
(21)
monoatomic ion transport
(17)
transmembrane transport
(15)
intracellular potassium ion homeostasis
(3)
micturition
(3)
monoatomic ion transmembrane transport
(3)
negative regulation of cell volume
(3)
positive regulation of apoptotic process
(3)
potassium ion transmembrane transport
(3)
regulation of membrane potential
(3)
response to calcium ion
(3)
response to carbon monoxide
(3)
response to hypoxia
(3)
response to osmotic stress
(3)
smooth muscle contraction involved in micturition
(3)
vasodilation
(3)
regulation of DNA-templated transcription
(1)
Biological cell component
(7)
membrane
(21)
apical plasma membrane
(3)
caveola
(3)
monoatomic ion channel complex
(3)
plasma membrane
(3)
postsynaptic membrane
(3)
voltage-gated potassium channel complex
(3)
Sequence and Structure classification
Pfam accession / name
(5)
PF03493 : BK_channel_a
(34)
PF21014 : Slowpoke_C
(34)
PF22614 : Slo-like_RCK
(34)
PF00520 : Ion_trans
(31)
PF07885 : Ion_trans_2
(31)
Experimental Information
Diffraction protocol
(2)
Single wavelength
(3)
MAD
(1)
Diffraction radiation source type
(1)
Synchrotron
(3)
Diffraction source
(4)
APS BEAMLINE 24-ID-C
(2)
APS BEAMLINE 23-ID-B
(1)
APS BEAMLINE 23-ID-D
(1)
NSLS BEAMLINE X29A
(1)
Synchrotron site
(2)
APS
(3)
NSLS
(1)
Diffraction detector type
(3)
CCD
(2)
Image plate
(1)
Pixel
(1)
Refinement software
(2)
PHENIX
(7)
REFMAC
(2)
EM microscope model
(2)
FEI TITAN KRIOS
(25)
TFS KRIOS
(6)
EM detector name
(4)
GATAN K3 (6k x 4k)
(14)
GATAN K3 BIOQUANTUM (6k x 4k)
(11)
GATAN K2 SUMMIT (4k x 4k)
(5)
FEI FALCON IV (4k x 4k)
(1)
NMR
NMR software packages
(5)
CYANA
(1)
NMRDraw
(1)
PROCHECK / PROCHECK-NMR
(1)
Sparky
(1)
VNMR
(1)
NMR Field Strength
700.0 - 800
(1)
800.0 - 900
(1)
Representative Structures
Representative Structures
Entries
Macromolecules
Compounds
Protein families
Entries 1 to 10 of 35
Select all entries on this page
Cryo-EM structure of hSlo1 in digitonin, Ca2+-free and EDTA-free
Tao X, Zhao C, MacKinnon R
Proc Natl Acad Sci U S A
(2023)
[PMID: 37098056 ]
Source organism: Homo sapiens
Assembly composition: protein only structure
Assembly name:
Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-171393 (Preferred)
search this ID
RCK1-RCK2 double mutant of human Slo1 in presence of EDTA - resting VSD
Pal K, Kallure GS, Chowdhury S
To be published
Source organism: Homo sapiens
Assembly composition: protein only structure
Assembly name:
Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-171393 (Preferred)
search this ID
Ca2+ bound intermediate state of hSlo1 + beta2N-beta4 channel in nanodisc.
Agarwal S, Nimigean C
Nat Commun
(2025)
[PMID: 39971906 ]
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Calcium-activated potassium channel
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-286942 (Preferred)
search this ID
Ca2+ free hSlo1 + beta2N-beta4 channel in nanodisc.
Agarwal S, Nimigean C
Nat Commun
(2025)
[PMID: 39971906 ]
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Calcium-activated potassium channel
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-286942 (Preferred)
search this ID
R207A mutant of human Slo1 in presence of EDTA - activated VSD
Pal K, Kallure GS, Chowdhury S
To be published
Source organism: Homo sapiens
Assembly composition: protein only structure
Assembly name:
Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-171393 (Preferred)
search this ID
Structure of human Slo1 and human LRRC26 in EDTA - LRRD masked
Pal K, Kallure GS, Chowdhury S
To be published
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Leucine-rich repeat-containing protein 26 and Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-245863 (Preferred)
search this ID
F315A mutant of human Slo1 in presence of EDTA - resting VSD
Pal K, Kallure G, Chowdhury S
To be published
Source organism: Homo sapiens
Assembly composition: protein only structure
Assembly name:
Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-171393 (Preferred)
search this ID
Human Slo1 - human LRRC26 in presence of EDTA - GR masked
Pal K, Kallure GS, Chowdhury S
To be published
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Leucine-rich repeat-containing protein 26 and Calcium-activated potassium channel subunit alpha-1
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-245863 (Preferred)
search this ID
Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in nanodisc.
Agarwal S, Nimigean C
Nat Commun
(2025)
[PMID: 39971906 ]
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Calcium-activated potassium channel
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-286942 (Preferred)
search this ID
Ca2+ free hSlo1 + beta2N-beta4 channel in detergent.
Agarwal S, Nimigean C
Nat Commun
(2025)
[PMID: 39971906 ]
Source organism: Homo sapiens
Assembly composition: protein/protein complex
Assembly name:
Calcium-activated potassium channel
(Preferred)
search this complex
PDBe complex ID:
PDB-CPX-286942 (Preferred)
search this ID
Entries 1 to 10 of 35