Reviewed,
UniProtKB/Swiss-Prot P16871 (IL7RA_HUMAN)
Last modified
November 24, 2009.
Version 110.
History...
Clusters with 100%,
90%,
50% identity |
Documents (7) |
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Names and origin
| Protein names | Recommended name: Interleukin-7 receptor subunit alpha Short name=IL-7R-alpha Alternative name(s): CDw127 CD_antigen=CD127 | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) [Complete proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 459 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Receptor for interleukin-7. Also acts as a receptor for thymic stromal lymphopoietin (TSLP). |
| Subunit structure | The IL7 receptor is an heterodimer of IL7R and IL2RG. The TSLP receptor is an heterodimer of CRLF2 and IL7R. |
| Subcellular location | Isoform 1: Cell membrane; Single-pass type I membrane protein. Isoform 3: Cell membrane; Single-pass type I membrane protein. Isoform 4: Secreted. |
| Domain | The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding. The box 1 motif is required for JAK interaction and/or activation. |
| Involvement in disease | Defects in IL7R are a cause of autosomal recessive severe combined immunodeficiency T-cell-negative/B-cell-positive/NK cell-positive (T-/B+/NK+ SCID) [MIM:608971]. A form of severe combined immunodeficiency (SCID), a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. Patients present in infancy recurrent, persistent infections by opportunistic organisms. The common characteristic of all types of SCID is absence of T-cell-mediated cellular immunity due to a defect in T-cell development. Ref.3 Ref.5 Ref.7 Ref.8 Ref.9 A genetic variation in transmembrane domain of IL7R is associated with susceptibility to multiple sclerosis (MS) [MIM:126200]. Overtransmission of the major 'C' allele coding for Thr-244 are detected in offspring affected with multiple sclerosis. In vitro analysis of transcripts from minigenes containing either 'C' allele (Thr-244) or 'T' allele (Ile-244) shows that the 'C' allele results in an approximately two-fold increase in the skipping of exon 6, leading to increased production of a soluble form of IL7R. Thus, the multiple sclerosis associated 'C' risk allele of IL7R would probably decrease membrane-bound expression of IL7R. As this risk allele is common in the general population, some additional triggers are probably required for the development and progression of MS. Ref.10 |
| Sequence similarities | Belongs to the type I cytokine receptor family. Type 4 subfamily. Contains 1 fibronectin type-III domain. |
| Sequence caution | The sequence AAH20717.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cell membrane Membrane Secreted |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation SCID |
| Domain | Signal Transmembrane |
| Molecular function | Receptor |
| PTM | Glycoprotein Phosphoprotein |
| Technical term | 3D-structure Complete proteome |
| Gene Ontology (GO) | |
| Biological process | cell surface receptor linked signal transduction Ref.3 Traceable author statement. Source: ProtInc regulation of DNA recombinationTraceable author statement. Source: ProtInc |
| Cellular component | extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell integral to membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular function | antigen binding Traceable author statement. Source: ProtInc interleukin-7 receptor activityTraceable author statement. Source: ProtInc |
| Complete GO annotation... | |
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: P16871-1) Also known as: H20; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 3 (identifier: P16871-2) Also known as: H1; The sequence of this isoform differs from the canonical sequence as follows: 293-459: NLNVSFNPES...VTMSSFYQNQ → VSVFGA | ||||||
| Isoform 4 (identifier: P16871-3) Also known as: H6; Secreted; The sequence of this isoform differs from the canonical sequence as follows: 237-459: EMDPILLTIS...VTMSSFYQNQ → LSLSYGPVSPIIRRLWNIFVRNQEK | ||||||
| Isoform 2 (identifier: P16871-4) Also known as: Secreted; The sequence of this isoform differs from the canonical sequence as follows: 237-252: EMDPILLTISILSFFS → LSLSYGPVSPIIRQEL 253-459: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | |||||||||||||||||||||||||||||||||||||||
Molecule processing | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 20 | 20 | ||||||||||||||||||||||||||||||||||||||||||
| Chain | 21 – 459 | 439 | Interleukin-7 receptor subunit alpha | PRO_0000010909 | ||||||||||||||||||||||||||||||||||||||||
Regions | ||||||||||||||||||||||||||||||||||||||||||||
| Topological domain | 21 – 239 | 219 | Extracellular Potential | |||||||||||||||||||||||||||||||||||||||||
| Transmembrane | 240 – 264 | 25 | Potential | |||||||||||||||||||||||||||||||||||||||||
| Topological domain | 265 – 459 | 195 | Cytoplasmic Potential | |||||||||||||||||||||||||||||||||||||||||
| Domain | 128 – 224 | 97 | Fibronectin type-III | |||||||||||||||||||||||||||||||||||||||||
| Motif | 217 – 221 | 5 | WSXWS motif | |||||||||||||||||||||||||||||||||||||||||
| Motif | 272 – 280 | 9 | Box 1 motif | |||||||||||||||||||||||||||||||||||||||||
| Compositional bias | 184 – 189 | 6 | Ser/Thr-rich | |||||||||||||||||||||||||||||||||||||||||
Amino acid modifications | ||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 159 | 1 | Phosphotyrosine Ref.8 | |||||||||||||||||||||||||||||||||||||||||
| Modified residue | 169 | 1 | Phosphotyrosine Ref.8 | |||||||||||||||||||||||||||||||||||||||||
| Modified residue | 282 | 1 | Phosphothreonine; by PKC Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 49 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 65 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 151 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 182 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 232 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
| Glycosylation | 233 | 1 | N-linked (GlcNAc...) Potential | |||||||||||||||||||||||||||||||||||||||||
Natural variations | ||||||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 237 – 459 | 223 | EMDPI…FYQNQ → LSLSYGPVSPIIRRLWNIFV RNQEK in isoform 4. | VSP_001713 | ||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 237 – 252 | 16 | EMDPI…LSFFS → LSLSYGPVSPIIRQEL in isoform 2. | VSP_012618 | ||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 253 – 459 | 207 | Missing in isoform 2. | VSP_012619 | ||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 293 – 459 | 167 | NLNVS…FYQNQ → VSVFGA in isoform 3. | VSP_001714 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 66 | 1 | T → I in T(-)/B(+)/NK(+) SCID. dbSNP rs1494558. Ref.3 Ref.5 Ref.7 | VAR_021286 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 113 | 1 | E → D: dbSNP rs11567735. Ref.5 | VAR_021287 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 132 | 1 | P → S in T(-)/B(+)/NK(+) SCID. Ref.9 | VAR_034870 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 138 | 1 | I → V in T(-)/B(+)/NK(+) SCID. dbSNP rs1494555. Ref.3 Ref.5 Ref.7 | VAR_021288 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 244 | 1 | T → I Associated with MS. dbSNP rs6897932. Ref.3 Ref.5 Ref.10 | VAR_021289 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 356 | 1 | I → V: dbSNP rs3194051. Ref.7 Ref.1 Ref.2 Ref.4 | VAR_021290 | ||||||||||||||||||||||||||||||||||||||||
| Natural variant | 414 | 1 | T → M: dbSNP rs2229232. | VAR_047742 | ||||||||||||||||||||||||||||||||||||||||
Experimental info | ||||||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 39 | 1 | S → T in AAH67539. Ref.5 | |||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 52 | 1 | Q → R in AAH67538. Ref.5 | |||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 384 | 1 | S → P in AAH67537. Ref.5 | |||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 386 | 1 | R → G in AAH67539. Ref.5 | |||||||||||||||||||||||||||||||||||||||||
Secondary structure | ||||||||||||||||||||||||||||||||||||||||||||
Helix Strand Turn | ||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 40 – 45 | 6 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 53 – 61 | 9 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 70 – 74 | 5 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 77 – 81 | 5 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 86 – 88 | 3 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 91 – 97 | 7 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 105 – 110 | 6 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 115 – 121 | 7 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 125 – 127 | 3 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 133 – 136 | 4 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 145 – 151 | 7 | ||||||||||||||||||||||||||||||||||||||||||
| Helix | 153 – 156 | 4 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 158 – 160 | 3 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 163 – 171 | 9 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 179 – 191 | 13 | ||||||||||||||||||||||||||||||||||||||||||
| Helix | 192 – 194 | 3 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 197 – 209 | 13 | ||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 224 – 228 | 5 | ||||||||||||||||||||||||||||||||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning of the human and murine interleukin-7 receptors: demonstration of a soluble form and homology to a new receptor superfamily." Goodwin R.G., Friend D., Ziegler S.F., Jerzy R., Falk B.A., Gimpel S., Cosman D., Dower S.K., March C.J., Namen A.E., Park L.S. Cell 60:941-951(1990) [PubMed: 2317865] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), ALTERNATIVE SPLICING, VARIANT VAL-356. Tissue: B-cell. |
| [2] | "Organization of the murine and human interleukin-7 receptor genes: two mRNAs generated by differential splicing and presence of a type I-interferon-inducible promoter." Pleiman C.M., Gimpel S.D., Park L.S., Harada H., Taniguchi T., Ziegler S.F. Mol. Cell. Biol. 11:3052-3059(1991) [PubMed: 2038316] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), VARIANT VAL-356. |
| [3] | "Defective IL7R expression in T(-)B(+)NK(+) severe combined immunodeficiency." Puel A., Ziegler S.F., Buckley R.H., Leonard W.J. Nat. Genet. 20:394-397(1998) [PubMed: 9843216] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 1), VARIANTS T(-)/B(+)/NK(+) SCID ILE-66 AND VAL-138, VARIANT ILE-244. |
| [4] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 4), VARIANT VAL-356. Tissue: Spleen. |
| [5] | SeattleSNPs variation discovery resource Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 1), VARIANTS T(-)/B(+)/NK(+) SCID ILE-66 AND VAL-138, VARIANTS ASP-113 AND ILE-244. |
| [6] | "The DNA sequence and comparative analysis of human chromosome 5." Schmutz J., Martin J., Terry A., Couronne O., Grimwood J., Lowry S., Gordon L.A., Scott D., Xie G., Huang W., Hellsten U., Tran-Gyamfi M., She X., Prabhakar S., Aerts A., Altherr M., Bajorek E., Black S. Rubin E.M.Nature 431:268-274(2004) [PubMed: 15372022] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], VARIANTS T(-)/B(+)/NK(+) SCID ILE-66 AND VAL-138. |
| [7] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), VARIANTS T(-)/B(+)/NK(+) SCID ILE-66 AND VAL-138, VARIANT VAL-356. Tissue: Testis. |
| [8] | "Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra." Yu L.-R., Zhu Z., Chan K.C., Issaq H.J., Dimitrov D.S., Veenstra T.D. J. Proteome Res. 6:4150-4162(2007) [PubMed: 17924679] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-159 AND TYR-169, MASS SPECTROMETRY. Tissue: Epithelium. |
| [9] | "A partial deficiency of interleukin-7R alpha is sufficient to abrogate T-cell development and cause severe combined immunodeficiency." Roifman C.M., Zhang J., Chitayat D., Sharfe N. Blood 96:2803-2807(2000) [PubMed: 11023514] [Abstract] Cited for: VARIANT T(-)/B(+)/NK(+) SCID SER-132. |
| [10] | "Interleukin 7 receptor alpha chain (IL7R) shows allelic and functional association with multiple sclerosis." Gregory S.G., Schmidt S., Seth P., Oksenberg J.R., Hart J., Prokop A., Caillier S.J., Ban M., Goris A., Barcellos L.F., Lincoln R., McCauley J.L., Sawcer S.J., Compston D.A., Dubois B., Hauser S.L., Garcia-Blanco M.A., Pericak-Vance M.A., Haines J.L. Nat. Genet. 39:1083-1091(2007) [PubMed: 17660817] [Abstract] Cited for: VARIANT ILE-244, ASSOCIATION WITH MS. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M29696 mRNA. Translation: AAA59157.1. AF043129 AF043128 Genomic DNA. Translation: AAC83204.1. AK301220 mRNA. Translation: BAG62793.1. AK315251 mRNA. Translation: BAG37673.1. AY449709 Genomic DNA. Translation: AAR08908.1. BC020717 mRNA. Translation: AAH20717.1. Sequence problems. BC067537 mRNA. Translation: AAH67537.1. BC067538 mRNA. Translation: AAH67538.1. BC067539 mRNA. Translation: AAH67539.1. BC067540 mRNA. Translation: AAH67540.1. BC069999 mRNA. Translation: AAH69999.1. | |||||||||||||||||||
| IPI | IPI00216518. IPI00292014. IPI00419824. IPI00549649. | ||||||||||||||||||
| PIR | A34791. B34791. C34791. | ||||||||||||||||||
| RefSeq | NP_002176.2. | ||||||||||||||||||
| UniGene | Hs.591742 Hs.635723 | ||||||||||||||||||
3D structure databases | |||||||||||||||||||
| |||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||
| DIP | DIP:3045N. | ||||||||||||||||||
| IntAct | P16871. 1 interaction. | ||||||||||||||||||
| STRING | P16871. | ||||||||||||||||||
PTM databases | |||||||||||||||||||
| PhosphoSite | P16871. | ||||||||||||||||||
Genome annotation databases | |||||||||||||||||||
| Ensembl | ENST00000303115; ENSP00000306157; ENSG00000168685; Homo sapiens. [Genome view] | ||||||||||||||||||
| GeneID | 3575. | ||||||||||||||||||
| KEGG | hsa:3575. | ||||||||||||||||||
Organism-specific databases | |||||||||||||||||||
| CTD | 3575. | ||||||||||||||||||
| GeneCards | GC05P035892. | ||||||||||||||||||
| H-InvDB | HIX0024815. | ||||||||||||||||||
| HGNC | HGNC:6024. IL7R. | ||||||||||||||||||
| HPA | CAB010215. | ||||||||||||||||||
| MIM | 126200. phenotype. 146661. gene. 608971. phenotype. | ||||||||||||||||||
| Orphanet | 101974. Severe combined immunodeficiency T- B+. | ||||||||||||||||||
| PharmGKB | PA29840. | ||||||||||||||||||
| GenAtlas | Search... | ||||||||||||||||||
Phylogenomic databases | |||||||||||||||||||
| HOGENOM | P16871. | ||||||||||||||||||
| HOVERGEN | P16871. | ||||||||||||||||||
Gene expression databases | |||||||||||||||||||
| ArrayExpress | P16871. | ||||||||||||||||||
| Bgee | P16871. | ||||||||||||||||||
| CleanEx | HS_IL7R. | ||||||||||||||||||
| Genevestigator | P16871. | ||||||||||||||||||
| GermOnline | ENSG00000168685. Homo sapiens. | ||||||||||||||||||
Family and domain databases | |||||||||||||||||||
| InterPro | IPR008957. Fibronectin_typ-III-like_fold. IPR003961. FN_III. IPR003531. Hempt_rcpt_S_F1_CS. [Graphical view] | ||||||||||||||||||
| Gene3D | G3DSA:2.60.40.30. FN_III-like. 1 hit. | ||||||||||||||||||
| Pfam | PF00041. fn3. 1 hit. [Graphical view] | ||||||||||||||||||
| PROSITE | PS50853. FN3. False negative. PS01355. HEMATOPO_REC_S_F1. 1 hit. [Graphical view] | ||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||
Other Resources | |||||||||||||||||||
| NextBio | 13972. | ||||||||||||||||||
| SOURCE | Search... | ||||||||||||||||||
Entry information
| Entry name | IL7RA_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P16871 Secondary accession number(s): B2RCS6 Q9UPC1 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human cell differentiation molecules CD nomenclature of surface proteins of human leucocytes and list of entries |
| Human chromosome 5 Human chromosome 5: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with


