3O4O


Conserved Protein Domain Family
Ig2_IL1R2_like

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cd05897: Ig2_IL1R2_like 
Second immunoglobulin (Ig)-like domain of interleukin-1 receptor-2 (IL1R2), and similar domains
The members here are composed of the second immunoglobulin (Ig)-like domain of interleukin-1 receptor-2 (IL1R2). IL-1 alpha and IL-1 beta are cytokines which participate in the regulation of inflammation, immune responses, and hematopoiesis. These cytokines bind to the IL-1 receptor type 1 (IL1R1), which is activated on additional association with interleukin-1 receptor accessory protein (IL1RAP). IL-1 also binds the IL-1 receptor, type II (IL1R2) represented in this group. Mature IL1R2 consists of three IG-like domains, a transmembrane domain, and a short cytoplasmic domain. It lacks the large cytoplasmic domain of mature IL1R1 and does not initiate signal transduction. A naturally occurring cytokine IL-1RA (IL-1 receptor antagonist) is widely expressed and binds to IL-1 receptors, inhibiting the binding of IL-1 alpha and IL-1 beta.
Statistics
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PSSM-Id: 409478
View PSSM: cd05897
Aligned: 6 rows
Threshold Bit Score: 164.161
Threshold Setting Gi: 62751556
Created: 11-Jan-2008
Updated: 17-Aug-2020
Structure
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Program:
Drawing:
Aligned Rows:
  next features
Conserved site includes 4 residues -Click on image for an interactive view with Cn3D
Feature 1:putative antagonist binding site [polypeptide binding site]
Evidence:
  • Comment:Based on similarity to human IL1R.
  • Comment:The naturally occurring cytokine IL-1RA (IL-1 receptor antagonist) is widely expressed and binds to IL-1 receptors, inhibiting the binding of IL-1 alpha and IL-1 beta.
  • Citation:PMID 7867645

Sequence Alignment
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Format: Row Display: Color Bits: Type Selection:
Feature 1                     #    # #                                  #                        
3O4O_C       126 ISYPQILTLSTSGVLVCPDLSEFTRDKTDVKIQWYKDSLLLDKDneKFLSVRGTTHLLVHDVALEDAGYYRCVLTFAHEG 205 human
XP_001514574 138 NSYKQILFTATSGKLVCPELRNFISKDTALEVNWYKDSVLLDKNseNFTVVKGSPFLLIKHISLGDSGYYICEMIFTQEG 217 platypus
NP_001015713 138 IAYEQLAFEHSQFQMFCPDLSDFTINRTDVQLQWYKDGKLLENDi-KYMYSSGTTYMHIIDIVKNDGGYYTCKLQFTHEN 216 western clawed ...
XP_416914    124 IAYPQILFTFTSGKIVCPNLWEFTINRTNMELQWYKDALLLEDDseKFVFLKESSSLFFTSVLPTDSGYYTCKMAFPYEG 203 chicken
XP_001371137 134 ISYRQTVVSSSPGRLVCPEINDFIQKTNKMEIKWYKDSVLLDESnkKFSILKGSTDCHINNVSLNNSGYYTCELPFVHGN 213 gray short-tail...
124310       136 ISYPQILTLSTSGVLVCPDLSEFTRDKTDVKIQWYKDSLLLDKDneKFLSVRGTTHLLVHDVALEDAGYYRCVLTFAHEG 215 human
Feature 1                       
3O4O_C       206 QQYNITRSIELRIKK 220 human
XP_001514574 218 KKYNITRRIELQVIE 232 platypus
NP_001015713 217 KEYVVSRIIHLRIVG 231 western clawed frog
XP_416914    204 VTYEITRTIKLQTVE 218 chicken
XP_001371137 214 VKYNITRHIKLRVLK 228 gray short-tailed opossum
124310       216 QQYNITRSIELRIKK 230 human

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