Uniprot accession / id : Q0GK43  OR   Uniprot accession / id : P60568  OR   Uniprot accession / id : Q29416  OR   Uniprot accession / id : P05016  OR   Uniprot accession / id : P04351  OR   Uniprot accession / id : P17108
 
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Entry Information
Entry status  (1)
REL
(38)
 
Experimental methods  (3)
X-ray diffraction
(33)
Electron Microscopy
(4)
Solution NMR
(1)
 
Authors  (220)
Garcia KC
(9)
Randal M
(9)
Wells JA
(9)
Arkin MR
(7)
Braisted AC
(7)
DeLano WL
(7)
Hyde J
(7)
Arkin MA
(6)
Luong TN
(6)
McDowell RS
(6)
Oslob JD
(6)
Raphael DR
(6)
Taylor L
(6)
Wang J
(6)
Jude KM
(5)
Boyman O
(4)
Kovar M
(4)
Ring AM
(4)
Spangler JB
(4)
Su L
(4)
Tomala J
(4)
Wang Y
(4)
Xiao J
(4)
Moraga I
(3)
Thanos CD
(3)
Allen KN
(2)
Bates DL
(2)
Bowman GR
(2)
Brenke R
(2)
Cao SD
(2)
Chu AE
(2)
Dong S
(2)
Fabilane CS
(2)
Fathman CG
(2)
Gao N
(2)
Gould JR
(2)
Henclova T
(2)
Hou S
(2)
Huang P-S
(2)
Huang PS
(2)
Huliciak M
(2)
Jehle S
(2)
Ji C
(2)
Johansen ER
(2)
Kare AJ
(2)
Khort HE
(2)
Kozakov D
(2)
Krieg C
(2)
Leff MI
(2)
Leonard EK
(2)
Leonard WJ
(2)
Levin AM
(2)
Li P
(2)
Li Y
(2)
Lin JT
(2)
Lin JX
(2)
Luca VC
(2)
Montano Romero A
(2)
Novick P
(2)
Pande VS
(2)
Pepper M
(2)
Picton LK
(2)
Porter MJ
(2)
Raeber ME
(2)
Raimondi G
(2)
Ren J
(2)
Rickert M
(2)
Sargunas PR
(2)
Schneider B
(2)
Shen H
(2)
Su C
(2)
Thompson L
(2)
Vajda S
(2)
Vanek O
(2)
Vaněk O
(2)
Votavova P
(2)
Wang G
(2)
Wang X
(2)
Wang YX
(2)
Xiao JY
(2)
Zhu Q
(2)
Acuff NV
(1)
Aerni HR
(1)
Alvarez JC
(1)
Arenas-Ramirez N
(1)
Artemiev I
(1)
Ast O
(1)
Bacac M
(1)
Baines BS
(1)
Benz J
(1)
Bessette PH
(1)
Birk M
(1)
Bluestone JA
(1)
Bolijn M
(1)
Boulanger MJ
(1)
Brandhuber BJ
(1)
Brannetti B
(1)
Brunker P
(1)
Brünker P
(1)
Caffaro CE
(1)
 
More...
 
Homo / hetero assembly  (2)
hetero
(19)
homo
(19)
 
Assembly composition  (2)
protein structure
(19)
protein/protein complex
(19)
 
Assembly polymer count  (7)
monomer
(17)
trimer
(9)
dimer
(6)
tetramer
(3)
dodecamer
(1)
heptamer
(1)
hexamer
(1)
 
Resolution distribution
1.5 - 2
(9)
2.0 - 2.5
(10)
2.5 - 3
(10)
3.0 - 3.5
(7)
3.5 - 4
(1)
 
Release year distribution
1990 - 1995
(2)
1995 - 2000
(1)
2000 - 2005
(12)
2005 - 2010
(4)
2010 - 2015
(6)
2015 - 2020
(9)
2020 - 2025
(14)
 
Journal  (17)
Proc Natl Acad Sci U S A
(10)
Nat Commun
(3)
Science
(3)
Cell Res
(2)
Immunity
(2)
J Am Chem Soc
(2)
JCI Insight
(2)
Nature
(2)
Oncoimmunology
(2)
Sci Transl Med
(2)
To be published
(2)
Biochemistry
(1)
J Immunother Cancer
(1)
J Mol Biol
(1)
Nat Med
(1)
Russ. J. Bioorganic Chem.
(1)
Sci Immunol
(1)
 
Macromolecules
Organism superkingdom  (1)
Eukaryota
(38)
 
Organism name  (2)
Homo sapiens
(36)
Mus musculus
(2)
 
Molecule name  (26)
IL-2
(38)
Interleukin-2
(38)
T-cell growth factor
(38)
TCGF
(38)
Apoptosis inhibitor expressed by macrophages
(2)
CD5 antigen-like
(2)
CT-2
(2)
Ig alpha-1 chain C region
(2)
Ig alpha-1 chain C region BUR
(2)
Ig alpha-1 chain C region TRO
(2)
Ig mu chain C region
(2)
Ig mu chain C region BOT
(2)
Ig mu chain C region GAL
(2)
Ig mu chain C region OU
(2)
IgM-associated peptide
(2)
Immunoglobulin heavy constant alpha 1
(2)
Immunoglobulin heavy constant mu
(2)
SP-alpha
(2)
hAIM
(2)
IL-2 receptor subunit alpha
(1)
IL-2-RA
(1)
IL-2R subunit alpha
(1)
IL2-RA
(1)
Interleukin-2 receptor subunit alpha
(1)
TAC antigen
(1)
p55
(1)
 
Molecule type  (1)
Protein
(38)
 
Gene names  (9)
IL2
(36)
API6
(2)
CD5L
(2)
IGHA1
(2)
IGHM
(2)
Il-2
(2)
Il2
(2)
UNQ203/PRO229
(2)
IL2RA
(1)
 
Interacting Molecules  (24)
Cytokine receptor common subunit gamma
(4)
Immunoglobulin J chain
(4)
Interleukin-2 receptor subunit alpha
(4)
Interleukin-2 receptor subunit beta
(4)
CD5 antigen-like
(2)
Immunoglobulin heavy constant mu
(2)
Interleukin-2
(2)
Secretory component
(2)
602 single chain fragment variable
(1)
Chains: A,D,G
(1)
Chains: B,E,H
(1)
F10 single chain fragment variable
(1)
Heavy chain of FAB fragment
(1)
Ig-like domain-containing protein
(1)
JES6-1 VH domain
(1)
JES6-1 VL domain
(1)
Light chain of FAB fragment
(1)
S4B6 Fab heavy chain
(1)
S4B6 Fab light chain
(1)
SigA binding protein
(1)
anti-hIL2 FAB fragment heavy chain
(1)
anti-hIL2 FAB fragment light chain
(1)
anti-human IL-2 antibody, mouse Ig G, heavy chain
(1)
anti-human IL-2 antibody, mouse Ig G, kappa chain
(1)
 
Interacting ligands  (18)
SO4 : SULFATE ION
(5)
CA : CALCIUM ION
(2)
GOL : GLYCEROL
(2)
NAG : 2-acetamido-2-deoxy-beta-D-glucopyranose
(2)
ZN : ZINC ION
(2)
2JY : 5-[(2,3-dichlorophenoxy)methyl]furan-2-carboxylic acid
(1)
2K1 : 5-methylfuran-2-carboxylic acid
(1)
CMM : 2-[2-(1-CARBAMIMIDOYL-PIPERIDIN-3-YL)-ACETYLAMINO]-3-{4-[2-(3-OXALYL-1H-INDOL-7-YL)ETHYL]-PHENYL}-PROPIONIC ACID METHYL ESTER
(1)
EPE : 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
(1)
FRB : 2-CYCLOHEXYL-N-(2-{4-[5-(2,3-DICHLORO-PHENYL)-2H-PYRAZOL-3-YL]-PIPERIDIN-1-YL}-2-OXO-ETHYL)-2-GUANIDINO-ACETAMIDE
(1)
FRG : 2-[3-METHYL-4-(N-METHYL-GUANIDINO)-BUTYRYLAMINO]-3-(4-PHENYLETHYNYL-PHENYL)-PROPIONIC ACID METHYL ESTER
(1)
FRH : 5-[2,3-DICHLORO-4-(5-{1-[2-(2-GUANIDINO-4-METHYL-PENTANOYLAMINO)-ACETYL]-PIPERIDIN-4-YL}-1-METHYL-1H-PYRAZOL-3-YL)-PHENOXYMETHYL]-FURAN-2-CARBOXYLIC ACID
(1)
FRI : 2-GUANIDINO-4-METHYL-PENTANOIC ACID [2-(4-{5-[4-(4-ACETYLAMINO-BENZYLOXY)-2,3-DICHLORO-PHENYL]-2-METHYL-2H-PYRAZOL-3-YL}-PIPERIDIN-1-YL)-2-OXO-ETHYL]-AMIDE
(1)
MG : MAGNESIUM ION
(1)
MHC : 3-MERCAPTO-1-(1,3,4,9-TETRAHYDRO-B-CARBOLIN-2-YL)-PROPAN-1-ONE
(1)
MPE : (1H-INDOL-3-YL)-(2-MERCAPTO-ETHOXYIMINO)-ACETIC ACID
(1)
NMP : 2-[2-(2-CYCLOHEXYL-2-GUANIDINO-ACETYLAMINO)-ACETYLAMINO]-N-(3-MERCAPTO-PROPYL)-PROPIONAMIDE
(1)
PO4 : PHOSPHATE ION
(1)
 
Function and Biology
Biological function  (10)
growth factor activity
(33)
interleukin-2 receptor binding
(33)
carbohydrate binding
(26)
cytokine activity
(26)
glycosphingolipid binding
(26)
kappa-type opioid receptor binding
(26)
kinase activator activity
(26)
protein binding
(26)
interleukin-2 binding
(1)
interleukin-2 receptor activity
(1)
 
Biological process  (49)
immune response
(33)
immune system process
(28)
G protein-coupled receptor signaling pathway
(26)
T cell differentiation
(26)
T cell proliferation
(26)
activated T cell proliferation
(26)
adaptive immune response
(26)
cell adhesion
(26)
cell surface receptor signaling pathway via STAT
(26)
cell-cell signaling
(26)
extrinsic apoptotic signaling pathway in absence of ligand
(26)
gene expression
(26)
interleukin-2-mediated signaling pathway
(26)
leukocyte activation involved in immune response
(26)
lymphocyte proliferation
(26)
natural killer cell activation
(26)
negative regulation of B cell apoptotic process
(26)
negative regulation of T-helper 17 cell differentiation
(26)
negative regulation of apoptotic process
(26)
negative regulation of inflammatory response
(26)
negative regulation of lymphocyte proliferation
(26)
phospholipase C-activating G protein-coupled receptor signaling pathway
(26)
positive regulation of B cell proliferation
(26)
positive regulation of T cell differentiation
(26)
positive regulation of T cell proliferation
(26)
positive regulation of activated T cell proliferation
(26)
positive regulation of cell growth
(26)
positive regulation of cell population proliferation
(26)
positive regulation of cytosolic calcium ion concentration
(26)
positive regulation of dendritic spine development
(26)
positive regulation of immunoglobulin production
(26)
positive regulation of inflammatory response
(26)
positive regulation of interleukin-17 production
(26)
positive regulation of isotype switching to IgG isotypes
(26)
positive regulation of plasma cell differentiation
(26)
positive regulation of regulatory T cell differentiation
(26)
positive regulation of tissue remodeling
(26)
positive regulation of transcription by RNA polymerase II
(26)
positive regulation of type II interferon production
(26)
regulation of CD4-positive, alpha-beta T cell proliferation
(26)
regulation of T cell homeostatic proliferation
(26)
response to ethanol
(26)
response to tacrolimus
(26)
transcription by RNA polymerase II
(26)
apoptotic process
(2)
cellular defense response
(2)
inflammatory response
(2)
positive regulation of complement-dependent cytotoxicity
(2)
regulation of complement activation
(2)
 
Biological cell component  (7)
extracellular region
(35)
extracellular space
(28)
blood microparticle
(2)
cell surface
(2)
cytoplasm
(2)
membrane
(2)
plasma membrane
(2)
 
Sequence and Structure classification
SCOP fold  (1)
4-helical cytokines
(14)
 
SCOP family  (1)
Short-chain cytokines
(14)
 
CATH class  (1)
Mainly Alpha
(24)
 
CATH topology  (1)
Growth Hormone; Chain: A;
(24)
 
Pfam accession / name  (5)
PF00715 : IL2
(33)
PF07654 : C1-set
(4)
PF00047 : ig
(2)
PF00530 : SRCR
(2)
PF00084 : Sushi
(1)
 
Experimental Information
Diffraction protocol  (1)
Single wavelength
(32)
 
Diffraction radiation source type  (2)
Synchrotron
(24)
Rotating anode
(8)
 
Diffraction source  (17)
RIGAKU
(7)
SLS BEAMLINE X10SA
(3)
SSRL BEAMLINE BL11-1
(3)
SSRL BEAMLINE BL7-1
(3)
ALS BEAMLINE 8.2.1
(2)
ALS BEAMLINE 8.2.2
(2)
NSLS BEAMLINE X29A
(2)
ALS BEAMLINE 4.2.2
(1)
ALS BEAMLINE 8.3.1
(1)
APS BEAMLINE 23-ID-B
(1)
DIAMOND BEAMLINE I03
(1)
MACSCIENCE M06X
(1)
NSLS-II BEAMLINE 17-ID-1
(1)
PAL/PLS BEAMLINE 11C
(1)
SLS BEAMLINE X06DA
(1)
SSRL BEAMLINE BL12-1
(1)
SSRL BEAMLINE BL12-2
(1)
 
Synchrotron site  (8)
SSRL
(8)
ALS
(6)
SLS
(4)
NSLS
(2)
APS
(1)
Diamond
(1)
NSLS-II
(1)
PAL/PLS
(1)
 
Diffraction detector type  (4)
CCD
(11)
Pixel
(11)
Image plate
(9)
CMOS
(1)
 
Refinement software  (5)
PHENIX
(17)
REFMAC
(16)
BUSTER
(1)
CNS
(1)
X-PLOR
(1)
 
EM microscope model  (1)
FEI TITAN KRIOS
(4)
 
EM detector name  (3)
GATAN K2 QUANTUM (4k x 4k)
(2)
GATAN K3 (6k x 4k)
(2)
GATAN K2 SUMMIT (4k x 4k)
(1)
 
Representative Structures
Representative Structures
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Entries 1 to 10 of 38
Entries 1 to 10 of 38
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Complex of anti-human IL-2 antibody and human IL-2
Kim MS, Kim JE
Oncoimmunology (2021) [PMID: 33796411  ]
Assembly composition: protein/protein complex
Assembly name: Interleukin-2 and IG-heavy chain and IG-light kappa chain (Preferred)   search this complex
PDBe complex ID: PDB-CPX-211413 (Preferred)   search this ID
PDBe-KB: P60568   
X-ray diffraction
2.49Å resolution
Released: 14 Apr 2021
Model geometry
Fit model/data
7dr4
7dr4
7dr4
Crystal structure of a interleukin-2 variant in complex with interleukin-2 receptor
Klein C, Freimoser-Grundschober A, Waldhauer I, Stihle M, Birk M, Benz J
Oncoimmunology (2017) [PMID: 28405498  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Bound ligands: CYS    NAG    CYS    MAN    SO4    NAG    MAN   
Carbohydrate polymer components:
Molecule 1 - FUC(1), NAG(2)
Molecule 2 - NAG(2)
Molecule 3 - FUC(1), NAG(1)
PDBe complex ID: PDB-CPX-147094 (Preferred)   search this ID
PDBe-KB: P60568    P14784    P31785   
X-ray diffraction
2.3Å resolution
Released: 3 May 2017
Model geometry
Fit model/data
5m5e
5m5e
5m5e
Human IL-2/Fab complex
Jude KM, Garcia KC
Nat Med (2018) [PMID: 29942088  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Bound ligands: GOL   
Modified residues: PCA    PCA   
PDBe complex ID: PDB-CPX-158043 (Preferred)   search this ID
PDBe-KB: P60568    Q6GMX6    Q6IPQ0   
X-ray diffraction
2.747Å resolution
Released: 11 Jul 2018
Model geometry
Fit model/data
5utz
5utz
5utz
Local map of human CD5L bound to IgM-Fc/J
Wang YX, Su C, Xiao JY
Nat Commun (2024) [PMID: 39333069  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Bound ligands: CA    NAG    CA    NAG   
Carbohydrate polymer components:
Molecule 1 - NAG(2)
PDBe complex ID: PDB-CPX-271727 (Preferred)   search this ID
PDBe-KB: P60568    P01871    P01591    O43866   
Electron Microscopy
3.41Å resolution
Released: 9 Oct 2024
Model geometry
Fit model/data
Data not analysed
8wys
8wys
8wys
Cryo-EM structure of human CD5L bound to IgM-Fc/J
Wang YX, Su C, Xiao JY
Nat Commun (2024) [PMID: 39333069  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Bound ligands: CA    NAG    CA    NAG   
Carbohydrate polymer components:
Molecule 1 - NAG(2)
PDBe complex ID: PDB-CPX-271726 (Preferred)   search this ID
PDBe-KB: P60568    P01871    P01591    O43866   
Electron Microscopy
3.39Å resolution
Released: 9 Oct 2024
Model geometry
Fit model/data
Data not analysed
8wyr
8wyr
8wyr
INTERLEUKIN-2 (human) mutant P65K, C125S
Ptacin JL, Milla ME, Steinbacher S, Maskos K, Thomsen M
Nat Commun (2021) [PMID: 34373459  ]
Source organism: Homo sapiens  
Assembly composition: protein only structure
Bound ligands: GOL    SO4   
Assembly name: Interleukin-2 (Preferred)   search this complex
PDBe complex ID: PDB-CPX-158042 (Preferred)   search this ID
PDBe-KB: P60568   
X-ray diffraction
1.79Å resolution
Released: 4 Aug 2021
Model geometry
Fit model/data
7m2g
7m2g
7m2g
IL-2 in complex with a Fab fragment from UFKA-20
Karakus U, Mittl P, Boyman O
Sci Transl Med (2020) [PMID: 33328333  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Carbohydrate polymer components:
Molecule 1 - NAG(2)
Assembly name: Interleukin-2 and IG-heavy chain and IG-light kappa chain (Preferred)   search this complex
PDBe complex ID: PDB-CPX-211412 (Preferred)   search this ID
PDBe-KB: P60568   
X-ray diffraction
2.89Å resolution
Released: 30 Dec 2020
Model geometry
Fit model/data
6ye3
6ye3
6ye3
Cryo-EM structure of human secretory immunoglobulin A in complex with the N-terminal domain of SpsA
Wang Y, Wang G, Li Y, Xiao J
Cell Res (2020) [PMID: 32398862  ]
Assembly composition: protein/protein complex
PDBe complex ID: PDB-CPX-128498 (Preferred)   search this ID
PDBe-KB: P01876    P60568    P01833    P01591    O33753   
Electron Microscopy
3.27Å resolution
Released: 27 May 2020
Model geometry
Fit model/data
Data not analysed
6lxw
6lxw
6lxw
Structure of the complex formed by human interleukin-2 and scFv 602
Gould JR, Leonard EK, Cao SD, Spangler JB
JCI Insight (2024) [PMID: 39115939  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Assembly name: Interleukin-2 and IG-heavy chain and IG-heavy chain (Preferred)   search this complex
PDBe complex ID: PDB-CPX-279997 (Preferred)   search this ID
PDBe-KB: P60568   
X-ray diffraction
1.64Å resolution
Released: 4 Sep 2024
Model geometry
Fit model/data
8soz
8soz
8soz
Structure of the complex formed by human interleukin-2 and scFv F10
Gould JR, Leonard EK, Cao SD, Spangler JB
JCI Insight (2024) [PMID: 39115939  ]
Source organism: Homo sapiens  
Assembly composition: protein/protein complex
Assembly name: Interleukin-2 and IG-heavy chain and IG-heavy chain (Preferred)   search this complex
PDBe complex ID: PDB-CPX-251018 (Preferred)   search this ID
PDBe-KB: P60568   
X-ray diffraction
1.71Å resolution
Released: 4 Sep 2024
Model geometry
Fit model/data
8sow
8sow
8sow
Entries 1 to 10 of 38
Entries 1 to 10 of 38