9KMC | pdb_00009kmc

Cryo-EM structure of the heterotrimeric interleukin-2 receptor in complex with interleukin-2 and anti-CD25 Fab S417


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
DSCOP2B Superfamily4-helical cytokines 8037109 3001717 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyFibronectin type III 8055179 3002063 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyFibronectin type III 8055542 3002063 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyFibronectin type III 8055185 3002063 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyFibronectin type III 8055545 3002063 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySushi/CCP/SCR domain 8037668 3000902 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySushi/CCP/SCR domain 8037669 3000902 SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
Light ChainIGKV4 Kappainterleukin-2 receptor subunit alphaSAbDab (2025-12-26)
Heavy ChainIGHV1 -interleukin-2 receptor subunit alphaSAbDab (2025-12-26)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00715Interleukin 2 (IL2)Interleukin 2Domain
PF22012Cytokine receptor-like factor 2, domain 1 (TSLPR_D1)Cytokine receptor-like factor 2, domain 1Cytokine receptor-like factor 2 also known as TSLPR is a receptor for thymic stromal lymphopoietin. It contains two ectodomains with Ig-like topology. This family represents the first of these domains. It also includes domains of interleukin-13 recep ...Cytokine receptor-like factor 2 also known as TSLPR is a receptor for thymic stromal lymphopoietin. It contains two ectodomains with Ig-like topology. This family represents the first of these domains. It also includes domains of interleukin-13 receptor subunit alpha-2 also known as IL-13RA2 that is known to bind with high affinity to interleukin-13.
Domain
PF21605Cytokine receptor-like factor 2-like, D2 domain (CRLF2-like_D2)Cytokine receptor-like factor 2-like, D2 domainCRLF2 is a receptor for thymic stromal lymphopoietin (TSLP). It forms a functional complex with TSLP and IL7R which is capable of stimulating cell proliferation through activation of STAT3 and STAT5. CRFL2 is implicated in the development of the hema ...CRLF2 is a receptor for thymic stromal lymphopoietin (TSLP). It forms a functional complex with TSLP and IL7R which is capable of stimulating cell proliferation through activation of STAT3 and STAT5. CRFL2 is implicated in the development of the hematopoietic system [1]. It consists of two FnIII-like domains, D1 and D2. This entry represents the membrane-proximal D2 domain, which displays a an ABE/C'CFG topology with two disulfide bridges [1]. This domain interacts with IL7R D2 domain and forms a compact network of interactions [1]. This domain is also found in the cytokine receptor common subunit gamma (IL2RG), a common subunit for the receptors for a variety of interleukins [2,3].
Domain
PF18707Interleukin-2 receptor subunit beta N-terminal domain 1 (IL2RB_N1)Interleukin-2 receptor subunit beta N-terminal domain 1IL-2Rbeta is a member of the class I cytokine receptor superfamily [1]. It carries a cytokine-binding homology region, which is divided in two fibronectin type-III (FN-III) domains termed D1 and D2. Each domain contains seven beta-strands that form a ...IL-2Rbeta is a member of the class I cytokine receptor superfamily [1]. It carries a cytokine-binding homology region, which is divided in two fibronectin type-III (FN-III) domains termed D1 and D2. Each domain contains seven beta-strands that form a sandwich of two antiparallel beta-sheets. The N-terminal D1 domain of IL-2Rbeta includes two highly conserved disulfide bridges [2]. This entry describes D1 of the N-terminal region of IL2Rbeta.
Domain
PF00084Sushi repeat (SCR repeat) (Sushi)Sushi repeat (SCR repeat)Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Fab S417 light chain---
Fab S417 heavy chain---
Interleukin-2
Cytokine receptor common subunit gamma
Interleukin-2 receptor subunit beta
Interleukin-2 receptor subunit alpha

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP60568
PharosP31785
PharosP14784
PharosP01589