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Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

3EB3

Voltage-dependent K+ channel beta subunit (W121A) in complex with cortisone

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0005249	molecular_function	voltage-gated potassium channel activity
A	0005737	cellular_component	cytoplasm
A	0006813	biological_process	potassium ion transport
A	0016020	cellular_component	membrane
A	0055085	biological_process	transmembrane transport

Functional Information from PDB Data

site_id	AC1
Number of Residues	33
Details	BINDING SITE FOR RESIDUE NDP A1001

Chain	Residue
A	GLY55
A	ARG189
A	GLN214
A	TRP243
A	SER244
A	PRO245
A	LEU246
A	ALA247
A	CYS248
A	GLY249
A	SER252
A	THR56
A	LYS254
A	SER263
A	ARG264
A	LEU321
A	LEU322
A	GLY323
A	SER325
A	GLN329
A	GLU332
A	ASN333
A	TRP57
A	HOH1010
A	HOH1012
A	HOH1014
A	HOH1024
A	GLN63
A	ASP85
A	TYR90
A	LYS118
A	ASN158
A	SER188

site_id	AC2
Number of Residues	13
Details	BINDING SITE FOR RESIDUE PDN A 601

Chain	Residue
A	PRO165
A	GLU167
A	GLU168
A	ARG203
A	ILE208
A	PRO209
A	PRO210
A	ILE211
A	ILE236
A	HOH1004
A	HOH1029
A	HOH1040
A	HOH1123

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	1
Details	ACT_SITE: Proton donor/acceptor => ECO:0000305\|PubMed:18672894

Chain	Residue	Details
A	TYR90

site_id	SWS_FT_FI2
Number of Residues	14
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:16002581, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:18806782, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:20534430, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2A79, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3EAU, ECO:0007744\|PDB:3EB3, ECO:0007744\|PDB:3EB4, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:3LUT, ECO:0007744\|PDB:4JTA, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	THR56
A	LYS254
A	ARG264
A	SER325
A	GLN329
A	ASN333
A	TRP57
A	GLN63
A	ASP85
A	SER188
A	GLN214
A	TRP243
A	SER244
A	LEU246

site_id	SWS_FT_FI3
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:4JTA

Chain	Residue	Details
A	ASN158

site_id	SWS_FT_FI4
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:16002581, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:18806782, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:20534430, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2A79, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3EB3, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:3LUT, ECO:0007744\|PDB:4JTA, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	ARG189

site_id	SWS_FT_FI5
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:16002581, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:18806782, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:20534430, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3EAU, ECO:0007744\|PDB:3EB3, ECO:0007744\|PDB:3EB4, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:3LUT, ECO:0007744\|PDB:4JTA, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	PRO245

site_id	SWS_FT_FI6
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:18806782, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3EAU, ECO:0007744\|PDB:3EB3, ECO:0007744\|PDB:3EB4, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:4JTA

Chain	Residue	Details
A	ALA247

site_id	SWS_FT_FI7
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:16002581, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:18806782, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:20534430, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2A79, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3EAU, ECO:0007744\|PDB:3EB3, ECO:0007744\|PDB:3EB4, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:3LUT, ECO:0007744\|PDB:4JTA, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	CYS248

site_id	SWS_FT_FI8
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	TYR262

site_id	SWS_FT_FI9
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	GLY323

site_id	SWS_FT_FI10
Number of Residues	1
Details	BINDING: BINDING => ECO:0000269\|PubMed:10399921, ECO:0000269\|PubMed:10884227, ECO:0000269\|PubMed:16002581, ECO:0000269\|PubMed:18004376, ECO:0000269\|PubMed:20360102, ECO:0000269\|PubMed:20534430, ECO:0000269\|PubMed:23705070, ECO:0007744\|PDB:1EXB, ECO:0007744\|PDB:1QRQ, ECO:0007744\|PDB:2A79, ECO:0007744\|PDB:2R9R, ECO:0007744\|PDB:3LNM, ECO:0007744\|PDB:3LUT, ECO:0007744\|PDB:4JTA, ECO:0007744\|PDB:4JTC, ECO:0007744\|PDB:4JTD

Chain	Residue	Details
A	GLU332

site_id	SWS_FT_FI11
Number of Residues	1
Details	MOD_RES: Phosphoserine => ECO:0000269\|PubMed:21357749

Chain	Residue	Details
A	SER112

site_id	SWS_FT_FI12
Number of Residues	1
Details	MOD_RES: N6-acetyllysine => ECO:0000250\|UniProtKB:Q13303

Chain	Residue	Details
A	LYS124

Catalytic Information from CSA

site_id	CSA1
Number of Residues	2
Details	Annotated By Reference To The Literature 2alr

Chain	Residue	Details
A	TYR90
A	LYS118

237735

PDB entries from 2025-06-18

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