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3TGX

IL-21:IL21R complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0004896molecular_functioncytokine receptor activity
A0016020cellular_componentmembrane
B0001819biological_processpositive regulation of cytokine production
B0002314biological_processgerminal center B cell differentiation
B0002639biological_processpositive regulation of immunoglobulin production
B0005125molecular_functioncytokine activity
B0005126molecular_functioncytokine receptor binding
B0005134molecular_functioninterleukin-2 receptor binding
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0005615cellular_componentextracellular space
B0005886cellular_componentplasma membrane
B0006952biological_processdefense response
B0006955biological_processimmune response
B0007165biological_processsignal transduction
B0007259biological_processcell surface receptor signaling pathway via JAK-STAT
B0007260biological_processtyrosine phosphorylation of STAT protein
B0008284biological_processpositive regulation of cell population proliferation
B0009615biological_processresponse to virus
B0016064biological_processimmunoglobulin mediated immune response
B0030101biological_processnatural killer cell activation
B0030890biological_processpositive regulation of B cell proliferation
B0032729biological_processpositive regulation of type II interferon production
B0032740biological_processpositive regulation of interleukin-17 production
B0034105biological_processpositive regulation of tissue remodeling
B0042102biological_processpositive regulation of T cell proliferation
B0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
B0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
B0048468biological_processcell development
B0048469biological_processcell maturation
B0050729biological_processpositive regulation of inflammatory response
B0051251biological_processpositive regulation of lymphocyte activation
B0051607biological_processdefense response to virus
B0061470biological_processT follicular helper cell differentiation
B0098586biological_processcellular response to virus
C0004896molecular_functioncytokine receptor activity
C0016020cellular_componentmembrane
D0001819biological_processpositive regulation of cytokine production
D0002314biological_processgerminal center B cell differentiation
D0002639biological_processpositive regulation of immunoglobulin production
D0005125molecular_functioncytokine activity
D0005126molecular_functioncytokine receptor binding
D0005134molecular_functioninterleukin-2 receptor binding
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0005615cellular_componentextracellular space
D0005886cellular_componentplasma membrane
D0006952biological_processdefense response
D0006955biological_processimmune response
D0007165biological_processsignal transduction
D0007259biological_processcell surface receptor signaling pathway via JAK-STAT
D0007260biological_processtyrosine phosphorylation of STAT protein
D0008284biological_processpositive regulation of cell population proliferation
D0009615biological_processresponse to virus
D0016064biological_processimmunoglobulin mediated immune response
D0030101biological_processnatural killer cell activation
D0030890biological_processpositive regulation of B cell proliferation
D0032729biological_processpositive regulation of type II interferon production
D0032740biological_processpositive regulation of interleukin-17 production
D0034105biological_processpositive regulation of tissue remodeling
D0042102biological_processpositive regulation of T cell proliferation
D0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
D0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
D0048468biological_processcell development
D0048469biological_processcell maturation
D0050729biological_processpositive regulation of inflammatory response
D0051251biological_processpositive regulation of lymphocyte activation
D0051607biological_processdefense response to virus
D0061470biological_processT follicular helper cell differentiation
D0098586biological_processcellular response to virus
E0004896molecular_functioncytokine receptor activity
E0016020cellular_componentmembrane
F0001819biological_processpositive regulation of cytokine production
F0002314biological_processgerminal center B cell differentiation
F0002639biological_processpositive regulation of immunoglobulin production
F0005125molecular_functioncytokine activity
F0005126molecular_functioncytokine receptor binding
F0005134molecular_functioninterleukin-2 receptor binding
F0005515molecular_functionprotein binding
F0005576cellular_componentextracellular region
F0005615cellular_componentextracellular space
F0005886cellular_componentplasma membrane
F0006952biological_processdefense response
F0006955biological_processimmune response
F0007165biological_processsignal transduction
F0007259biological_processcell surface receptor signaling pathway via JAK-STAT
F0007260biological_processtyrosine phosphorylation of STAT protein
F0008284biological_processpositive regulation of cell population proliferation
F0009615biological_processresponse to virus
F0016064biological_processimmunoglobulin mediated immune response
F0030101biological_processnatural killer cell activation
F0030890biological_processpositive regulation of B cell proliferation
F0032729biological_processpositive regulation of type II interferon production
F0032740biological_processpositive regulation of interleukin-17 production
F0034105biological_processpositive regulation of tissue remodeling
F0042102biological_processpositive regulation of T cell proliferation
F0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
F0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
F0048468biological_processcell development
F0048469biological_processcell maturation
F0050729biological_processpositive regulation of inflammatory response
F0051251biological_processpositive regulation of lymphocyte activation
F0051607biological_processdefense response to virus
F0061470biological_processT follicular helper cell differentiation
F0098586biological_processcellular response to virus
G0004896molecular_functioncytokine receptor activity
G0016020cellular_componentmembrane
H0001819biological_processpositive regulation of cytokine production
H0002314biological_processgerminal center B cell differentiation
H0002639biological_processpositive regulation of immunoglobulin production
H0005125molecular_functioncytokine activity
H0005126molecular_functioncytokine receptor binding
H0005134molecular_functioninterleukin-2 receptor binding
H0005515molecular_functionprotein binding
H0005576cellular_componentextracellular region
H0005615cellular_componentextracellular space
H0005886cellular_componentplasma membrane
H0006952biological_processdefense response
H0006955biological_processimmune response
H0007165biological_processsignal transduction
H0007259biological_processcell surface receptor signaling pathway via JAK-STAT
H0007260biological_processtyrosine phosphorylation of STAT protein
H0008284biological_processpositive regulation of cell population proliferation
H0009615biological_processresponse to virus
H0016064biological_processimmunoglobulin mediated immune response
H0030101biological_processnatural killer cell activation
H0030890biological_processpositive regulation of B cell proliferation
H0032729biological_processpositive regulation of type II interferon production
H0032740biological_processpositive regulation of interleukin-17 production
H0034105biological_processpositive regulation of tissue remodeling
H0042102biological_processpositive regulation of T cell proliferation
H0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
H0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
H0048468biological_processcell development
H0048469biological_processcell maturation
H0050729biological_processpositive regulation of inflammatory response
H0051251biological_processpositive regulation of lymphocyte activation
H0051607biological_processdefense response to virus
H0061470biological_processT follicular helper cell differentiation
H0098586biological_processcellular response to virus
I0004896molecular_functioncytokine receptor activity
I0016020cellular_componentmembrane
J0001819biological_processpositive regulation of cytokine production
J0002314biological_processgerminal center B cell differentiation
J0002639biological_processpositive regulation of immunoglobulin production
J0005125molecular_functioncytokine activity
J0005126molecular_functioncytokine receptor binding
J0005134molecular_functioninterleukin-2 receptor binding
J0005515molecular_functionprotein binding
J0005576cellular_componentextracellular region
J0005615cellular_componentextracellular space
J0005886cellular_componentplasma membrane
J0006952biological_processdefense response
J0006955biological_processimmune response
J0007165biological_processsignal transduction
J0007259biological_processcell surface receptor signaling pathway via JAK-STAT
J0007260biological_processtyrosine phosphorylation of STAT protein
J0008284biological_processpositive regulation of cell population proliferation
J0009615biological_processresponse to virus
J0016064biological_processimmunoglobulin mediated immune response
J0030101biological_processnatural killer cell activation
J0030890biological_processpositive regulation of B cell proliferation
J0032729biological_processpositive regulation of type II interferon production
J0032740biological_processpositive regulation of interleukin-17 production
J0034105biological_processpositive regulation of tissue remodeling
J0042102biological_processpositive regulation of T cell proliferation
J0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
J0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
J0048468biological_processcell development
J0048469biological_processcell maturation
J0050729biological_processpositive regulation of inflammatory response
J0051251biological_processpositive regulation of lymphocyte activation
J0051607biological_processdefense response to virus
J0061470biological_processT follicular helper cell differentiation
J0098586biological_processcellular response to virus
K0004896molecular_functioncytokine receptor activity
K0016020cellular_componentmembrane
L0001819biological_processpositive regulation of cytokine production
L0002314biological_processgerminal center B cell differentiation
L0002639biological_processpositive regulation of immunoglobulin production
L0005125molecular_functioncytokine activity
L0005126molecular_functioncytokine receptor binding
L0005134molecular_functioninterleukin-2 receptor binding
L0005515molecular_functionprotein binding
L0005576cellular_componentextracellular region
L0005615cellular_componentextracellular space
L0005886cellular_componentplasma membrane
L0006952biological_processdefense response
L0006955biological_processimmune response
L0007165biological_processsignal transduction
L0007259biological_processcell surface receptor signaling pathway via JAK-STAT
L0007260biological_processtyrosine phosphorylation of STAT protein
L0008284biological_processpositive regulation of cell population proliferation
L0009615biological_processresponse to virus
L0016064biological_processimmunoglobulin mediated immune response
L0030101biological_processnatural killer cell activation
L0030890biological_processpositive regulation of B cell proliferation
L0032729biological_processpositive regulation of type II interferon production
L0032740biological_processpositive regulation of interleukin-17 production
L0034105biological_processpositive regulation of tissue remodeling
L0042102biological_processpositive regulation of T cell proliferation
L0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
L0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
L0048468biological_processcell development
L0048469biological_processcell maturation
L0050729biological_processpositive regulation of inflammatory response
L0051251biological_processpositive regulation of lymphocyte activation
L0051607biological_processdefense response to virus
L0061470biological_processT follicular helper cell differentiation
L0098586biological_processcellular response to virus
M0004896molecular_functioncytokine receptor activity
M0016020cellular_componentmembrane
N0001819biological_processpositive regulation of cytokine production
N0002314biological_processgerminal center B cell differentiation
N0002639biological_processpositive regulation of immunoglobulin production
N0005125molecular_functioncytokine activity
N0005126molecular_functioncytokine receptor binding
N0005134molecular_functioninterleukin-2 receptor binding
N0005515molecular_functionprotein binding
N0005576cellular_componentextracellular region
N0005615cellular_componentextracellular space
N0005886cellular_componentplasma membrane
N0006952biological_processdefense response
N0006955biological_processimmune response
N0007165biological_processsignal transduction
N0007259biological_processcell surface receptor signaling pathway via JAK-STAT
N0007260biological_processtyrosine phosphorylation of STAT protein
N0008284biological_processpositive regulation of cell population proliferation
N0009615biological_processresponse to virus
N0016064biological_processimmunoglobulin mediated immune response
N0030101biological_processnatural killer cell activation
N0030890biological_processpositive regulation of B cell proliferation
N0032729biological_processpositive regulation of type II interferon production
N0032740biological_processpositive regulation of interleukin-17 production
N0034105biological_processpositive regulation of tissue remodeling
N0042102biological_processpositive regulation of T cell proliferation
N0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
N0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
N0048468biological_processcell development
N0048469biological_processcell maturation
N0050729biological_processpositive regulation of inflammatory response
N0051251biological_processpositive regulation of lymphocyte activation
N0051607biological_processdefense response to virus
N0061470biological_processT follicular helper cell differentiation
N0098586biological_processcellular response to virus
O0004896molecular_functioncytokine receptor activity
O0016020cellular_componentmembrane
P0001819biological_processpositive regulation of cytokine production
P0002314biological_processgerminal center B cell differentiation
P0002639biological_processpositive regulation of immunoglobulin production
P0005125molecular_functioncytokine activity
P0005126molecular_functioncytokine receptor binding
P0005134molecular_functioninterleukin-2 receptor binding
P0005515molecular_functionprotein binding
P0005576cellular_componentextracellular region
P0005615cellular_componentextracellular space
P0005886cellular_componentplasma membrane
P0006952biological_processdefense response
P0006955biological_processimmune response
P0007165biological_processsignal transduction
P0007259biological_processcell surface receptor signaling pathway via JAK-STAT
P0007260biological_processtyrosine phosphorylation of STAT protein
P0008284biological_processpositive regulation of cell population proliferation
P0009615biological_processresponse to virus
P0016064biological_processimmunoglobulin mediated immune response
P0030101biological_processnatural killer cell activation
P0030890biological_processpositive regulation of B cell proliferation
P0032729biological_processpositive regulation of type II interferon production
P0032740biological_processpositive regulation of interleukin-17 production
P0034105biological_processpositive regulation of tissue remodeling
P0042102biological_processpositive regulation of T cell proliferation
P0042531biological_processpositive regulation of tyrosine phosphorylation of STAT protein
P0045954biological_processpositive regulation of natural killer cell mediated cytotoxicity
P0048468biological_processcell development
P0048469biological_processcell maturation
P0050729biological_processpositive regulation of inflammatory response
P0051251biological_processpositive regulation of lymphocyte activation
P0051607biological_processdefense response to virus
P0061470biological_processT follicular helper cell differentiation
P0098586biological_processcellular response to virus
Functional Information from PROSITE/UniProt
site_idPS01355
Number of Residues34
DetailsHEMATOPO_REC_S_F1 Short hematopoietin receptor family 1 signature. FrkdssyelqVRagpmpgssyqgt........WSeWSdpviF
ChainResidueDetails
APHE171-PHE204

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues776
DetailsDomain: {"description":"Fibronectin type-III 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00316","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues32
DetailsMotif: {"description":"WSXWS motif"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues8
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"22235133","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues40
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues8
DetailsGlycosylation: {"description":"C-linked (Man) tryptophan","evidences":[{"source":"PubMed","id":"22235133","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues436
DetailsDomain: {"description":"Fibronectin type-III 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00316","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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