Skip Header

 
Contribute Send feedback
Read comments (0) or add your own

Reviewed, UniProtKB/Swiss-Prot P16871 (IL7RA_HUMAN)

Last modified November 24, 2009. Version 110. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (7) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Interleukin-7 receptor subunit alpha
      Short name=IL-7R-alpha
Alternative name(s):
    CDw127
    CD_antigen=CD127
Gene names
Name: IL7R
OrganismHomo sapiens (Human) [Complete proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length459 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence 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

Binary interactions

With

Entry

#Exp.

IntAct

Notes

IL7P132323EBI-80490,EBI-80516

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 keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 2020
Chain21 – 459439Interleukin-7 receptor subunit alpha
PRO_0000010909

Regions

Topological domain21 – 239219Extracellular Potential
Transmembrane240 – 26425 Potential
Topological domain265 – 459195Cytoplasmic Potential
Domain128 – 22497Fibronectin type-III
Motif217 – 2215WSXWS motif
Motif272 – 2809Box 1 motif
Compositional bias184 – 1896Ser/Thr-rich

Amino acid modifications

Modified residue1591Phosphotyrosine Ref.8
Modified residue1691Phosphotyrosine Ref.8
Modified residue2821Phosphothreonine; by PKC Potential
Glycosylation491N-linked (GlcNAc...) Potential
Glycosylation651N-linked (GlcNAc...) Potential
Glycosylation1511N-linked (GlcNAc...) Potential
Glycosylation1821N-linked (GlcNAc...) Potential
Glycosylation2321N-linked (GlcNAc...) Potential
Glycosylation2331N-linked (GlcNAc...) Potential

Natural variations

Alternative sequence237 – 459223EMDPI…FYQNQ → LSLSYGPVSPIIRRLWNIFV RNQEK in isoform 4.
VSP_001713
Alternative sequence237 – 25216EMDPI…LSFFS → LSLSYGPVSPIIRQEL in isoform 2.
VSP_012618
Alternative sequence253 – 459207Missing in isoform 2.
VSP_012619
Alternative sequence293 – 459167NLNVS…FYQNQ → VSVFGA in isoform 3.
VSP_001714
Natural variant661T → I in T(-)/B(+)/NK(+) SCID. dbSNP rs1494558. Ref.3 Ref.5 Ref.7
VAR_021286
Natural variant1131E → D: dbSNP rs11567735. Ref.5
VAR_021287
Natural variant1321P → S in T(-)/B(+)/NK(+) SCID. Ref.9
VAR_034870
Natural variant1381I → V in T(-)/B(+)/NK(+) SCID. dbSNP rs1494555. Ref.3 Ref.5 Ref.7
VAR_021288
Natural variant2441T → I Associated with MS. dbSNP rs6897932. Ref.3 Ref.5 Ref.10
VAR_021289
Natural variant3561I → V: dbSNP rs3194051. Ref.7 Ref.1 Ref.2 Ref.4
VAR_021290
Natural variant4141T → M: dbSNP rs2229232.
VAR_047742

Experimental info

Sequence conflict391S → T in AAH67539. Ref.5
Sequence conflict521Q → R in AAH67538. Ref.5
Sequence conflict3841S → P in AAH67537. Ref.5
Sequence conflict3861R → G in AAH67539. Ref.5

Secondary structure

.................................... 459
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Isoform 1 (H20) [UniParc].

Last modified November 25, 2008. Version 2.
Checksum: EE556426C22A182B

FASTA45951,581
        10         20         30         40         50         60 
MTILGTTFGM VFSLLQVVSG ESGYAQNGDL EDAELDDYSF SCYSQLEVNG SQHSLTCAFE 

        70         80         90        100        110        120 
DPDVNTTNLE FEICGALVEV KCLNFRKLQE IYFIETKKFL LIGKSNICVK VGEKSLTCKK 

       130        140        150        160        170        180 
IDLTTIVKPE APFDLSVIYR EGANDFVVTF NTSHLQKKYV KVLMHDVAYR QEKDENKWTH 

       190        200        210        220        230        240 
VNLSSTKLTL LQRKLQPAAM YEIKVRSIPD HYFKGFWSEW SPSYYFRTPE INNSSGEMDP 

       250        260        270        280        290        300 
ILLTISILSF FSVALLVILA CVLWKKRIKP IVWPSLPDHK KTLEHLCKKP RKNLNVSFNP 

       310        320        330        340        350        360 
ESFLDCQIHR VDDIQARDEV EGFLQDTFPQ QLEESEKQRL GGDVQSPNCP SEDVVITPES 

       370        380        390        400        410        420 
FGRDSSLTCL AGNVSACDAP ILSSSRSLDC RESGKNGPHV YQDLLLSLGT TNSTLPPPFS 

       430        440        450 
LQSGILTLNP VAQGQPILTS LGSNQEEAYV TMSSFYQNQ 

« Hide

Isoform 3 (H1).

Checksum: B724534E0AFFC77B
Show »

FASTA29834,020
Isoform 4 (H6) (Secreted).

Checksum: C77F2DB55E9DB48D
Show »

FASTA26129,938
Isoform 2 (Secreted).

Checksum: D37499B0E8BE412A
Show »

FASTA25228,724

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. expand/collapse author list , Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., 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. expand/collapse author list , Branscomb E., Caoile C., Challacombe J.F., Chan Y.M., Denys M., Detter J.C., Escobar J., Flowers D., Fotopulos D., Glavina T., Gomez M., Gonzales E., Goodstein D., Grigoriev I., Groza M., Hammon N., Hawkins T., Haydu L., Israni S., Jett J., Kadner K., Kimball H., Kobayashi A., Lopez F., Lou Y., Martinez D., Medina C., Morgan J., Nandkeshwar R., Noonan J.P., Pitluck S., Pollard M., Predki P., Priest J., Ramirez L., Retterer J., Rodriguez A., Rogers S., Salamov A., Salazar A., Thayer N., Tice H., Tsai M., Ustaszewska A., Vo N., Wheeler J., Wu K., Yang J., Dickson M., Cheng J.-F., Eichler E.E., Olsen A., Pennacchio L.A., Rokhsar D.S., Richardson P., Lucas S.M., Myers R.M., 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.

Web resources

Cross-references

Sequence databases

M29696 mRNA. Translation: AAA59157.1.
AF043129 expand/collapse EMBL AC list , AF043123, AF043124, AF043125, AF043126, AF043127, 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.
IPIIPI00216518.
IPI00292014.
IPI00419824.
IPI00549649.
PIRA34791.
B34791.
C34791.
RefSeqNP_002176.2.
UniGeneHs.591742
Hs.635723

3D structure databases

EntryMethodResolution (Å)ChainPositionsPDBsum
3DI2X-ray2.70B/D21-239[»]
3DI3X-ray2.90B21-239[»]
ModBaseSearch...

Protein-protein interaction databases

DIPDIP:3045N.
IntActP16871. 1 interaction.
STRINGP16871.

PTM databases

PhosphoSiteP16871.

Genome annotation databases

EnsemblENST00000303115; ENSP00000306157; ENSG00000168685; Homo sapiens. [Genome view]
GeneID3575.
KEGGhsa:3575.

Organism-specific databases

CTD3575.
GeneCardsGC05P035892.
H-InvDBHIX0024815.
HGNCHGNC:6024. IL7R.
HPACAB010215.
MIM126200. phenotype.
146661. gene.
608971. phenotype.
Orphanet101974. Severe combined immunodeficiency T- B+.
PharmGKBPA29840.
GenAtlasSearch...

Phylogenomic databases

HOGENOMP16871.
HOVERGENP16871.

Gene expression databases

ArrayExpressP16871.
BgeeP16871.
CleanExHS_IL7R.
GenevestigatorP16871.
GermOnlineENSG00000168685. Homo sapiens.

Family and domain databases

InterProIPR008957. Fibronectin_typ-III-like_fold.
IPR003961. FN_III.
IPR003531. Hempt_rcpt_S_F1_CS.
[Graphical view]
Gene3DG3DSA:2.60.40.30. FN_III-like. 1 hit.
PfamPF00041. fn3. 1 hit.
[Graphical view]
PROSITEPS50853. FN3. False negative.
PS01355. HEMATOPO_REC_S_F1. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

NextBio13972.
SOURCESearch...

Entry information

Entry nameIL7RA_HUMAN
AccessionPrimary (citable) accession number: P16871
Secondary accession number(s): B2RCS6 expand/collapse secondary AC list , B4DVT1, Q05CU8, Q6NSP4, Q6NWM0, Q6NWM1, Q6NWM2, Q6NWM3, Q6SV45, Q9UPC1
Entry history
Integrated into UniProtKB/Swiss-Prot: August 1, 1990
Last sequence update: November 25, 2008
Last modified: November 24, 2009
This is version 110 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)
DisclaimerAny 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

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents