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UniProtKB/Swiss-Prot entry P36897


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name TGFR1_HUMAN
Primary accession number P36897
Secondary accession numbers None
Integrated into Swiss-Prot on June 1, 1994
Sequence was last modified on June 1, 1994 (Sequence version 1)
Annotations were last modified on    July 22, 2008 (Entry version 100)
Name and origin of the protein
Protein name TGF-beta receptor type-1 [Precursor]
Synonyms EC 2.7.11.30
Transforming growth factor-beta receptor type I
TGF-beta receptor type I
TGF-beta type I receptor
TbetaR-I
TGFR-1
Serine/threonine-protein kinase receptor R4
SKR4
Activin receptor-like kinase 5
ALK-5
Gene name
Name: TGFBR1
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA].
DOI=10.1016/0092-8674(93)90489-D; PubMed=8242743 [NCBI, ExPASy, EBI, Israel, Japan]
Franzen P., ten Dijke P., Ichijo H., Yamashita H., Schulz P., Heldin C.-H., Miyazono K.;
"Cloning of a TGF beta type I receptor that forms a heteromeric complex with the TGF beta type II receptor.";
Cell 75:681-692(1993).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
DOI=10.1006/geno.1997.5023; PubMed=9417915 [NCBI, ExPASy, EBI, Israel, Japan]
Vellucci V.F., Reiss M.;
"Cloning and genomic organization of the human transforming growth factor-beta type I receptor gene.";
Genomics 46:278-283(1997).
[3]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Lynch M.A., Song H., DeGroff V.L., Alam K.Y., Adams E.M., Weghorst C.M.;
"The genomic structure of the gene encoding the human transforming growth factor beta type I receptor.";
Submitted (NOV-1997) to the EMBL/GenBank/DDBJ databases.
[4]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Livingston R.J., Rieder M.J., Chung M.-W., Ritchie T.K., Olson A.N., Nguyen C.P., Nguyen D.A., Poel C.L., Robertson P.D., Schackwitz W.S., Sherwood J.K., Sherwood A.M., Leithauser B.J., Nickerson D.A.;
"NIEHS-SNPs, environmental genome project, NIEHS ES15478, Department of Genome Sciences, Seattle, WA (URL: http://egp.gs.washington.edu).";
Submitted (DEC-2003) to the EMBL/GenBank/DDBJ databases.
[5]
FUNCTION, PHOSPHORYLATION AT THR-185; THR-186; SER-187; SER-189 AND SER-191, SUBCELLULAR LOCATION, SUBUNIT, AND MUTAGENESIS OF 185-THR-THR-186; SER-187; SER-189; SER-191; THR-200 AND THR-204.
PubMed=7774578 [NCBI, ExPASy, EBI, Israel, Japan]
Wieser R., Wrana J.L., Massague J.;
"GS domain mutations that constitutively activate T beta R-I, the downstream signaling component in the TGF-beta receptor complex.";
EMBO J. 14:2199-2208(1995).
[6]
INTERACTION WITH CD109.
DOI=10.1096/fj.05-5229fje; PubMed=16754747 [NCBI, ExPASy, EBI, Israel, Japan]
Finnson K.W., Tam B.Y.Y., Liu K., Marcoux A., Lepage P., Roy S., Bizet A.A., Philip A.;
"Identification of CD109 as part of the TGF-beta receptor system in human keratinocytes.";
FASEB J. 20:1525-1527(2006).
[7]
3D-STRUCTURE MODELING OF 34-114.
DOI=10.1016/0014-5793(95)01239-7; PubMed=8521960 [NCBI, ExPASy, EBI, Israel, Japan]
Jokiranta T.S., Tissari J., Teleman O., Meri S.;
"Extracellular domain of type I receptor for transforming growth factor-beta: molecular modelling using protectin (CD59) as a template.";
FEBS Lett. 376:31-36(1995).
[8]
X-RAY CRYSTALLOGRAPHY (2.6 ANGSTROMS) OF 162-503 IN COMPLEX WITH FKBP1A.
DOI=10.1016/S0092-8674(00)80555-3; PubMed=10025408 [NCBI, ExPASy, EBI, Israel, Japan]
Huse M., Chen Y.-G., Massague J., Kuriyan J.;
"Crystal structure of the cytoplasmic domain of the type I TGF beta receptor in complex with FKBP12.";
Cell 96:425-436(1999).
[9]
X-RAY CRYSTALLOGRAPHY (2.9 ANGSTROMS) OF 162-503, PHOSPHORYLATION, AND INTERACTION WITH SMAD2 AND FKBP1A.
DOI=10.1016/S1097-2765(01)00332-X; PubMed=11583628 [NCBI, ExPASy, EBI, Israel, Japan]
Huse M., Muir T.W., Xu L., Chen Y.-G., Kuriyan J., Massague J.;
"The TGF beta receptor activation process: an inhibitor- to substrate-binding switch.";
Mol. Cell 8:671-682(2001).
[10]
X-RAY CRYSTALLOGRAPHY (2.3 ANGSTROMS) OF 175-500 IN COMPLEX WITH SYNTHETIC INHIBITOR.
DOI=10.1016/j.bmcl.2004.04.007; PubMed=15177479 [NCBI, ExPASy, EBI, Israel, Japan]
Sawyer J.S., Beight D.W., Britt K.S., Anderson B.D., Campbell R.M., Goodson T. Jr., Herron D.K., Li H.-Y., McMillen W.T., Mort N., Parsons S., Smith E.C.R., Wagner J.R., Yan L., Zhang F., Yingling J.M.;
"Synthesis and activity of new aryl- and heteroaryl-substituted 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole inhibitors of the transforming growth factor-beta type I receptor kinase domain.";
Bioorg. Med. Chem. Lett. 14:3581-3584(2004).
[11]
X-RAY CRYSTALLOGRAPHY (2.0 ANGSTROMS) OF 201-503 IN COMPLEX WITH SYNTHETIC INHIBITOR.
DOI=10.1021/jm0400247; PubMed=15317461 [NCBI, ExPASy, EBI, Israel, Japan]
Gellibert F., Woolven J., Fouchet M.-H., Mathews N., Goodland H., Lovegrove V., Laroze A., Nguyen V.-L., Sautet S., Wang R., Janson C., Smith W., Krysa G., Boullay V., De Gouville A.-C., Huet S., Hartley D.;
"Identification of 1,5-naphthyridine derivatives as a novel series of potent and selective TGF-beta type I receptor inhibitors.";
J. Med. Chem. 47:4494-4506(2004).
[12]
VARIANT TGFBR1*6A ALA-24--26-ALA DEL, AND VARIANT TGFBR1*10A ALA-26 INS.
PubMed=9661882 [NCBI, ExPASy, EBI, Israel, Japan]
Pasche B., Luo Y., Rao P.H., Nimer S.D., Dmitrovsky E., Caron P., Luzzatto L., Offit K., Cordon-Cardo C., Renault B., Satagopan J.M., Murty V.V.V.S., Massague J.;
"Type I transforming growth factor beta receptor maps to 9q22 and exhibits a polymorphism and a rare variant within a polyalanine tract.";
Cancer Res. 58:2727-2732(1998).
[13]
ANALYSIS OF VARIANT TGFBR1*6A ALA-24--26-ALA DEL IN CANCER RISK.
DOI=10.1200/JCO.2003.11.524; PubMed=12947057 [NCBI, ExPASy, EBI, Israel, Japan]
Kaklamani V.G., Hou N., Bian Y., Reich J., Offit K., Michel L.S., Rubinstein W.S., Rademaker A., Pasche B.;
"TGFBR1*6A and cancer risk: a meta-analysis of seven case-control studies.";
J. Clin. Oncol. 21:3236-3243(2003).
[14]
ANALYSIS OF VARIANT TGFBR1*6A ALA-24--26-ALA DEL IN PROSTATE CANCER.
DOI=10.1186/1471-2156-5-28; PubMed=15385056 [NCBI, ExPASy, EBI, Israel, Japan]
Kaklamani V.G., Baddi L., Rosman D., Liu J., Ellis N., Oddoux C., Ostrer H., Chen Y., Ahsan H., Offit K., Pasche B.;
"No major association between TGFBR1*6A and prostate cancer.";
BMC Genet. 5:28-28(2004).
[15]
VARIANTS LDS1A ILE-200; ARG-318; GLY-400 AND PRO-487.
DOI=10.1038/ng1511; PubMed=15731757 [NCBI, ExPASy, EBI, Israel, Japan]
Loeys B.L., Chen J., Neptune E.R., Judge D.P., Podowski M., Holm T., Meyers J., Leitch C.C., Katsanis N., Sharifi N., Xu F.L., Myers L.A., Spevak P.J., Cameron D.E., De Backer J.F., Hellemans J., Chen Y., Davis E.C., Webb C.L., Kress W., Coucke P.J., Rifkin D.B., De Paepe A.M., Dietz H.C.;
"A syndrome of altered cardiovascular, craniofacial, neurocognitive and skeletal development caused by mutations in TGFBR1 or TGFBR2.";
Nat. Genet. 37:275-281(2005).
[16]
ANALYSIS OF VARIANT TGFBR1*6A ALA-24--26-ALA DEL IN PROSTATE CANCER.
DOI=10.1038/sj.pcan.4500765; PubMed=15505640 [NCBI, ExPASy, EBI, Israel, Japan]
Suarez B.K., Pal P., Jin C.H., Kaushal R., Sun G., Jin L., Pasche B., Deka R., Catalona W.J.;
"TGFBR1(*)6A is not associated with prostate cancer in men of European ancestry.";
Prostate Cancer Prostatic Dis. 8:50-53(2005).
[17]
VARIANT LDS1A LEU-241.
DOI=10.1002/ajmg.a.31202; PubMed=16596670 [NCBI, ExPASy, EBI, Israel, Japan]
Ades L.C., Sullivan K., Biggin A., Haan E.A., Brett M., Holman K.J., Dixon J., Robertson S., Holmes A.D., Rogers J., Bennetts B.;
"FBN1, TGFBR1, and the Marfan-craniosynostosis/mental retardation disorders revisited.";
Am. J. Med. Genet. A 140:1047-1058(2006).
[18]
VARIANT LDS1A LEU-241, VARIANT AAT5 GLN-487, AND VARIANT HIS-267.
DOI=10.1002/humu.20353; PubMed=16791849 [NCBI, ExPASy, EBI, Israel, Japan]
Matyas G., Arnold E., Carrel T., Baumgartner D., Boileau C., Berger W., Steinmann B.;
"Identification and in silico analyses of novel TGFBR1 and TGFBR2 mutations in Marfan syndrome-related disorders.";
Hum. Mutat. 27:760-769(2006).
[19]
VARIANTS LDS2A GLU-232; TRP-487; PRO-487 AND GLN-487.
DOI=10.1056/NEJMoa055695; PubMed=16928994 [NCBI, ExPASy, EBI, Israel, Japan]
Loeys B.L., Schwarze U., Holm T., Callewaert B.L., Thomas G.H., Pannu H., De Backer J.F., Oswald G.L., Symoens S., Manouvrier S., Roberts A.E., Faravelli F., Greco M.A., Pyeritz R.E., Milewicz D.M., Coucke P.J., Cameron D.E., Braverman A.C., Byers P.H., De Paepe A.M., Dietz H.C.;
"Aneurysm syndromes caused by mutations in the TGF-beta receptor.";
N. Engl. J. Med. 355:788-798(2006).
[20]
VARIANTS [LARGE SCALE ANALYSIS] ILE-153 AND CYS-291.
DOI=10.1038/nature05610; PubMed=17344846 [NCBI, ExPASy, EBI, Israel, Japan]
Greenman C., Stephens P., Smith R., Dalgliesh G.L., Hunter C., Bignell G., Davies H., Teague J., Butler A., Stevens C., Edkins S., O'Meara S., Vastrik I., Schmidt E.E., Avis T., Barthorpe S., Bhamra G., Buck G., Choudhury B., Clements J., Cole J., Dicks E., Forbes S., Gray K., Halliday K., Harrison R., Hills K., Hinton J., Jenkinson A., Jones D., Menzies A., Mironenko T., Perry J., Raine K., Richardson D., Shepherd R., Small A., Tofts C., Varian J., Webb T., West S., Widaa S., Yates A., Cahill D.P., Louis D.N., Goldstraw P., Nicholson A.G., Brasseur F., Looijenga L., Weber B.L., Chiew Y.-E., DeFazio A., Greaves M.F., Green A.R., Campbell P., Birney E., Easton D.F., Chenevix-Trench G., Tan M.-H., Khoo S.K., Teh B.T., Yuen S.T., Leung S.Y., Wooster R., Futreal P.A., Stratton M.R.;
"Patterns of somatic mutation in human cancer genomes.";
Nature 446:153-158(2007).
Comments
  • FUNCTION: On ligand binding, forms a receptor complex consisting of two type II and two type I transmembrane serine/threonine kinases. Type II receptors phosphorylate and activate type I receptors which autophosphorylate, then bind and activate SMAD transcriptional regulators. Receptor for TGF-beta.
  • CATALYTIC ACTIVITY: ATP + [receptor-protein] = ADP + [receptor-protein] phosphate.
  • COFACTOR: Magnesium or manganese (By similarity).
  • SUBUNIT: Interacts with CD109. The unphosphorylated protein interacts with FKBP1A and is stabilized the inactive conformation. Phosphorylation of the GS region abrogates FKBP1A binding. Interacts with SMAD2 when phosphorylated on several residues in the GS region.
  • SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein.
  • TISSUE SPECIFICITY: Found in all tissues examined, most abundant in placenta and least abundant in brain and heart.
  • PTM: Phosphorylated at basal levels in the absence of ligand binding. Activated by multiple phosphorylation, mainly in the GS region.
  • DISEASE: Defects in TGFBR1 are the cause of Loeys-Dietz syndrome type 1A (LDS1A) [MIM:609192]; also known as Furlong syndrome or Loeys-Dietz aortic aneurysm syndrome (LDAS). LDS1 is an aortic aneurysm syndrome with widespread systemic involvement. The disorder is characterized by arterial tortuosity and aneurysms, craniosynostosis, hypertelorism, and bifid uvula or cleft palate. Other findings include exotropy, micrognathia and retrognathia, structural brain abnormalities, intellectual deficit, congenital heart disease, translucent skin, joint hyperlaxity and aneurysm with dissection throughout the arterial tree.
  • DISEASE: Defects in TGFBR1 are the cause of Loeys-Dietz syndrome type 2A (LDS2A) [MIM:608967]. LDS2 is an aortic aneurysm syndrome with widespread systemic involvement. Physical findings include prominent joint laxity, easy bruising, wide and atrophic scars, velvety and translucent skin with easily visible veins, spontaneous rupture of the spleen or bowel, diffuse arterial aneurysms and dissections, and catastrophic complications of pregnancy, including rupture of the gravid uterus and the arteries, either during pregnancy or in the immediate postpartum period. LDS2 is characterized by the absence of craniofacial abnormalities with the exception of bifid uvula that can be present in some patients.
  • DISEASE: Defects in TGFBR1 are the cause of aortic aneurysm familial thoracic type 5 (AAT5) [MIM:608967]. Aneurysms and dissections of the aorta usually result from degenerative changes in the aortic wall. Thoracic aortic aneurysms and dissections are primarily associated with a characteristic histologic appearance known as 'medial necrosis' in which there is degeneration and fragmentation of elastic fibers, loss of smooth muscle cells, and an accumulation of basophilic ground substance.
  • SIMILARITY: Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. TGFB receptor subfamily.
  • SIMILARITY: Contains 1 GS domain.
  • SIMILARITY: Contains 1 protein kinase domain.
  • WEB RESOURCE: Name=GeneReviews; URL="http://www.genetests.org/query?gene=TGFBR1";.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
L11695; AAA16073.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054598; AAC08998.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054590; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054591; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054592; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054593; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054594; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054595; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054596; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF054597; AAC08998.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035670; AAD02042.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035662; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035663; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035664; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035665; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035666; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035667; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035668; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF035669; AAD02042.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY497473; AAR32097.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR A49432; A49432.
RefSeq NP_004603.1; -.
UniGene Hs.494622
3D structure databases
PDB
1B6C; X-ray; 2.60 A; B/D/F/H=162-503.[ExPASy / RCSB / EBI]
1IAS; X-ray; 2.90 A; A/B/C/D/E=162-503.[ExPASy / RCSB / EBI]
1PY5; X-ray; 2.30 A; A=175-500.[ExPASy / RCSB / EBI]
1RW8; X-ray; 2.40 A; A=200-500.[ExPASy / RCSB / EBI]
1TBI; Model; -; A=34-114.[ExPASy / RCSB / EBI]
1VJY; X-ray; 2.00 A; A=201-503.[ExPASy / RCSB / EBI]
2PJY; X-ray; 3.00 A; C=33-111.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1B6C; -.
1IAS; -.
1PY5; -.
1RW8; -.
1TBI; -.
1VJY; -.
2PJY; -.
ModBase P36897.
Protein-protein interaction databases
DIP DIP:5935N; -.
IntAct P36897; -.
PTM databases
PhosphoSite P36897; -.
Enzyme and pathway databases
Reactome REACT_6844; Signaling by TGF beta.
Polymorphism databases
NIEHS-SNPs TGFBR1.
Organism-specific databases
H-InvDB HIX0008228; -.
HGNC HGNC:11772; TGFBR1.
GenAtlas TGFBR1.
MIM 190181; gene. [NCBI / EBI]
608967; phenotype. [NCBI / EBI]
609192; phenotype. [NCBI / EBI]
Orphanet 60030; Aortic aneurysm syndrome, Loeys-Dietz type.
91387; Thoracic aortic aneurysm, familial form.
PharmGKB PA36485; -.
GeneCards P36897.
Gene expression databases
ArrayExpress P36897; -.
CleanEx HS_TGFBR1; -.
GermOnline ENSG00000106799; Homo sapiens.
Ontologies
GO
GO:0005887; Cellular component: integral to plasma membrane (traceable author statement from ProtInc).
GO:0043235; Cellular component: receptor complex (inferred from direct assay from UniProtKB).
GO:0005524; Molecular function: ATP binding (inferred from direct assay from HGNC).
GO:0046332; Molecular function: SMAD binding (inferred from direct assay from HGNC).
GO:0050431; Molecular function: transforming growth factor beta binding (inferred from direct assay from HGNC).
GO:0005025; Molecular function: transforming growth factor beta receptor activity, type I (traceable author statement from ProtInc).
GO:0008284; Biological process: positive regulation of cell proliferation (inferred from mutant phenotype from HGNC).
GO:0006468; Biological process: protein amino acid phosphorylation (inferred from direct assay from HGNC).
GO:0045449; Biological process: regulation of transcription (inferred from direct assay from HGNC).
GO:0007181; Biological process: transforming growth factor beta receptor complex assembly (traceable author statement from ProtInc).
QuickGo view.
Family and domain databases
InterPro IPR000333; Activin_II_recpt.
IPR000472; Activin_rcpt.
IPR000719; Prot_kinase_core.
IPR017441; Protein_kinase_ATP_bd_CS.
IPR017442; Se/Thr_pkinase-rel.
IPR008271; Ser_thr_pkin_AS.
IPR003605; TGF_beta_rcpt_GS.
Graphical view of domain structure.
Pfam PF01064; Activin_recp; 1.
PF00069; Pkinase; 1.
PF08515; TGF_beta_GS; 1.
Pfam graphical view of domain structure.
PRINTS PR00653; ACTIVIN2R.
ProDom PD000001; Prot_kinase; 1.
[Domain structure / List of seq. sharing at least 1 domain]
SMART SM00467; GS; 1.
SMART graphical view of domain structure.
PROSITE PS51256; GS; 1.
PS00107; PROTEIN_KINASE_ATP; 1.
PS50011; PROTEIN_KINASE_DOM; 1.
PS00108; PROTEIN_KINASE_ST; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS P36897.
Genome annotation databases
Ensembl ENSG00000106799; Homo sapiens. [Contig view]
GeneID 7046; -.
KEGG hsa:7046; -.
Phylogenomic databases
HOGENOM P36897; -.
HOVERGEN P36897; -.
Other
LinkHub P36897; -.
SOURCE TGFBR1; Homo sapiens.
ProtoNet P36897.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Aortic aneurysm; ATP-binding; Craniosynostosis; Disease mutation; Glycoprotein; Kinase; Magnesium; Manganese; Membrane; Metal-binding; Nucleotide-binding; Phosphoprotein; Polymorphism; Receptor; Serine/threonine-protein kinase; Signal; Transferase; Transmembrane.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
SIGNAL   1    24  24     Potential. 
CHAIN   25   503  479     TGF-beta receptor type-1. PRO_0000024423
TOPO_DOM   25   125  101     Extracellular (Potential). 
TRANSMEM   126   147  22     Potential. 
TOPO_DOM   148   503  356     Cytoplasmic (Potential). 
DOMAIN   175   204  30     GS. 
DOMAIN   205   495  291     Protein kinase. 
NP_BIND   211   219  9     ATP (By similarity). 
ACT_SITE   333   333        Proton acceptor (By similarity). 
BINDING   232   232        ATP (By similarity). 
MOD_RES   185   185        Phosphothreonine. 
MOD_RES   186   186        Phosphothreonine. 
MOD_RES   187   187        Phosphoserine. 
MOD_RES   189   189        Phosphoserine. 
MOD_RES   191   191        Phosphoserine. 
CARBOHYD   45    45        N-linked (GlcNAc...) (Potential). 
DISULFID   36    54         
DISULFID   38    41         
DISULFID   48    71         
DISULFID   86   100         
DISULFID   101   106         
VARIANT   24    26  3     Missing (in allele TGFBR1*6A; could be a tumor susceptibility allele). VAR_022342
VARIANT   26    26  1     A -> AA (in allele TGFBR1*10A; rare polymorphism). VAR_022343
VARIANT   153   153  1     V -> I. VAR_041412 
VARIANT   200   200  1     T -> I (in LDS1A). VAR_022344 [3D]
VARIANT   232   232  1     K -> E (in LDS2A). VAR_029481 [3D]
VARIANT   241   241  1     S -> L (in LDS1A). VAR_029482 [3D]
VARIANT   267   267  1     N -> H (in a patient with Marfan syndrome). VAR_029483 [3D]
VARIANT   291   291  1     Y -> C. VAR_041413 [3D]
VARIANT   318   318  1     M -> R (in LDS1A). VAR_022345 [3D]
VARIANT   400   400  1     D -> G (in LDS1A). VAR_022346 [3D]
VARIANT   487   487  1     R -> P (in LDS1A and LDS2A). VAR_022347 [3D]
VARIANT   487   487  1     R -> Q (in LDS2A and AAT5). VAR_029484 [3D]
VARIANT   487   487  1     R -> W (in LDS2A). VAR_029485 [3D]
MUTAGEN   185   186        TT->VV: Loss of phosphorylation on threonine residues. Loss of threonine phosphorylation, reduced phosphorylation on serine residues and loss of response to TGF-beta; when associated with A-187; A-189 and A-191. 
MUTAGEN   187   187        S->A: Loss of threonine phosphorylation, reduced phosphorylation on serine residues and loss of response to TGF-beta; when associated with 185-VV-186; A-189 and A-191. 
MUTAGEN   189   189        S->A: Loss of threonine phosphorylation, reduced phosphorylation on serine residues and loss of response to TGF-beta; when associated with 185-VV-186; A-187 and A-191. 
MUTAGEN   191   191        S->A: Loss of threonine phosphorylation, reduced phosphorylation on serine residues and loss of response to TGF-beta; when associated with 185-VV-186; A-187 and A-189. 
MUTAGEN   200   200        T->D: Loss of response to TGF-beta. 
MUTAGEN   200   200        T->V: Loss of phosphorylation. Loss of response to TGF-beta. 
MUTAGEN   204   204        T->D: Constitutive activation. 
MUTAGEN   204   204        T->V: Reduced phosphorylation. Reduced response to TGF-beta. 
HELIX   202   204  3      
STRAND   206   212  7      
STRAND   215   217  3      
STRAND   219   224  6      
STRAND   227   234  8      
HELIX   239   251  13      
STRAND   262   267  6      
STRAND   271   273