Q14767 (LTBP2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 121.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Latent-transforming growth factor beta-binding protein 2 Short name=LTBP-2 | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Reference 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 | 1821 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 | May play an integral structural role in elastic-fiber architectural organization and/or assembly. |
| Subunit structure | Forms part of the large latent transforming growth factor beta precursor complex; removal is essential for activation of complex. Interacts with SDC4. Ref.4 Ref.9 |
| Subcellular location | Secreted By similarity. Note: Localized in nuchal ligament and aorta to the fibrillin-containing, microfibrillar component of elastic fibers By similarity. |
| Tissue specificity | Expressed in lung, weakly expressed in heart, placenta, liver and skeletal muscle. |
| Domain | Associates covalently with small latent TGF-beta complex via Repeat B and Repeat C By similarity. |
| Post-translational modification | Contains hydroxylated asparagine residues By similarity. |
| Involvement in disease | Primary congenital glaucoma 3D (GLC3D) [MIM:613086]: An autosomal recessive form of primary congenital glaucoma (PCG). PCG is characterized by marked increase of intraocular pressure at birth or early childhood, large ocular globes (buphthalmos) and corneal edema. It results from developmental defects of the trabecular meshwork and anterior chamber angle of the eye that prevent adequate drainage of aqueous humor. Microspherophakia and/or megalocornea, with ectopia lentis and with or without secondary glaucoma (MSPKA) [MIM:251750]: A rare disease characterized by smaller and more spherical lenses than normal bilaterally, an increased anteroposterior thickness of the lens, and highly myopic eyes. Lens dislocation or subluxation may occur, leading to defective accommodation. Weill-Marchesani syndrome 3 (WMS3) [MIM:614819]: A rare connective tissue disorder characterized by short stature, brachydactyly, joint stiffness, and eye abnormalities including microspherophakia, ectopia lentis, severe myopia and glaucoma. |
| Sequence similarities | Belongs to the LTBP family. Contains 20 EGF-like domains. Contains 4 TB (TGF-beta binding) domains. |
| Caution | Ref.1 reported that a complex is formed with TGFB1. Ref.4 has shown that there is no association with TGFB1. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 35 | 35 | Potential | ||||||||
| Chain | 36 – 1821 | 1786 | Latent-transforming growth factor beta-binding protein 2 | PRO_0000007643 | |||||||
Regions | |||||||||||
| Domain | 187 – 219 | 33 | EGF-like 1 | ||||||||
| Domain | 396 – 428 | 33 | EGF-like 2 | ||||||||
| Domain | 552 – 604 | 53 | TB 1 | ||||||||
| Domain | 622 – 662 | 41 | EGF-like 3; calcium-binding Potential | ||||||||
| Domain | 672 – 724 | 53 | TB 2 | ||||||||
| Domain | 844 – 886 | 43 | EGF-like 4 | ||||||||
| Domain | 887 – 929 | 43 | EGF-like 5; calcium-binding Potential | ||||||||
| Domain | 930 – 969 | 40 | EGF-like 6; calcium-binding Potential | ||||||||
| Domain | 970 – 1009 | 40 | EGF-like 7; calcium-binding Potential | ||||||||
| Domain | 1010 – 1050 | 41 | EGF-like 8; calcium-binding Potential | ||||||||
| Domain | 1051 – 1092 | 42 | EGF-like 9; calcium-binding Potential | ||||||||
| Domain | 1093 – 1134 | 42 | EGF-like 10; calcium-binding Potential | ||||||||
| Domain | 1135 – 1175 | 41 | EGF-like 11; calcium-binding Potential | ||||||||
| Domain | 1176 – 1217 | 42 | EGF-like 12; calcium-binding Potential | ||||||||
| Domain | 1218 – 1258 | 41 | EGF-like 13; calcium-binding Potential | ||||||||
| Domain | 1259 – 1302 | 44 | EGF-like 14; calcium-binding Potential | ||||||||
| Domain | 1303 – 1344 | 42 | EGF-like 15; calcium-binding Potential | ||||||||
| Domain | 1345 – 1387 | 43 | EGF-like 16; calcium-binding Potential | ||||||||
| Domain | 1411 – 1463 | 53 | TB 3 | ||||||||
| Domain | 1485 – 1527 | 43 | EGF-like 17; calcium-binding Potential | ||||||||
| Domain | 1528 – 1567 | 40 | EGF-like 18; calcium-binding Potential | ||||||||
| Domain | 1584 – 1636 | 53 | TB 4 | ||||||||
| Domain | 1733 – 1773 | 41 | EGF-like 19; calcium-binding Potential | ||||||||
| Domain | 1774 – 1818 | 45 | EGF-like 20; calcium-binding Potential | ||||||||
| Region | 94 – 115 | 22 | Heparin-binding | ||||||||
| Region | 232 – 249 | 18 | Heparin-binding | ||||||||
| Region | 344 – 354 | 11 | Heparin-binding | ||||||||
| Motif | 375 – 377 | 3 | Cell attachment site Potential | ||||||||
| Compositional bias | 856 – 1372 | 517 | Cys-rich | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 506 | 1 | Phosphoserine By similarity | ||||||||
| Glycosylation | 181 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 343 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 421 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 616 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 811 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1170 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1309 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1430 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1568 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Disulfide bond | 191 ↔ 201 | By similarity | |||||||||
| Disulfide bond | 195 ↔ 207 | By similarity | |||||||||
| Disulfide bond | 209 ↔ 218 | By similarity | |||||||||
| Disulfide bond | 400 ↔ 410 | By similarity | |||||||||
| Disulfide bond | 404 ↔ 416 | By similarity | |||||||||
| Disulfide bond | 418 ↔ 427 | By similarity | |||||||||
| Disulfide bond | 626 ↔ 637 | By similarity | |||||||||
| Disulfide bond | 632 ↔ 646 | By similarity | |||||||||
| Disulfide bond | 648 ↔ 661 | By similarity | |||||||||
| Disulfide bond | 848 ↔ 861 | By similarity | |||||||||
| Disulfide bond | 856 ↔ 870 | By similarity | |||||||||
| Disulfide bond | 872 ↔ 885 | By similarity | |||||||||
| Disulfide bond | 891 ↔ 902 | By similarity | |||||||||
| Disulfide bond | 896 ↔ 911 | By similarity | |||||||||
| Disulfide bond | 913 ↔ 928 | By similarity | |||||||||
| Disulfide bond | 934 ↔ 945 | By similarity | |||||||||
| Disulfide bond | 940 ↔ 954 | By similarity | |||||||||
| Disulfide bond | 956 ↔ 968 | By similarity | |||||||||
| Disulfide bond | 974 ↔ 985 | By similarity | |||||||||
| Disulfide bond | 980 ↔ 994 | By similarity | |||||||||
| Disulfide bond | 997 ↔ 1008 | By similarity | |||||||||
| Disulfide bond | 1014 ↔ 1025 | By similarity | |||||||||
| Disulfide bond | 1020 ↔ 1034 | By similarity | |||||||||
| Disulfide bond | 1036 ↔ 1049 | By similarity | |||||||||
| Disulfide bond | 1055 ↔ 1066 | By similarity | |||||||||
| Disulfide bond | 1061 ↔ 1075 | By similarity | |||||||||
| Disulfide bond | 1078 ↔ 1091 | By similarity | |||||||||
| Disulfide bond | 1097 ↔ 1108 | By similarity | |||||||||
| Disulfide bond | 1103 ↔ 1117 | By similarity | |||||||||
| Disulfide bond | 1120 ↔ 1133 | By similarity | |||||||||
| Disulfide bond | 1139 ↔ 1151 | By similarity | |||||||||
| Disulfide bond | 1146 ↔ 1160 | By similarity | |||||||||
| Disulfide bond | 1162 ↔ 1174 | By similarity | |||||||||
| Disulfide bond | 1180 ↔ 1192 | By similarity | |||||||||
| Disulfide bond | 1186 ↔ 1201 | By similarity | |||||||||
| Disulfide bond | 1203 ↔ 1216 | By similarity | |||||||||
| Disulfide bond | 1222 ↔ 1233 | By similarity | |||||||||
| Disulfide bond | 1228 ↔ 1242 | By similarity | |||||||||
| Disulfide bond | 1244 ↔ 1257 | By similarity | |||||||||
| Disulfide bond | 1263 ↔ 1276 | By similarity | |||||||||
| Disulfide bond | 1271 ↔ 1285 | By similarity | |||||||||
| Disulfide bond | 1289 ↔ 1301 | By similarity | |||||||||
| Disulfide bond | 1307 ↔ 1319 | By similarity | |||||||||
| Disulfide bond | 1313 ↔ 1328 | By similarity | |||||||||
| Disulfide bond | 1330 ↔ 1343 | By similarity | |||||||||
| Disulfide bond | 1349 ↔ 1361 | By similarity | |||||||||
| Disulfide bond | 1356 ↔ 1370 | By similarity | |||||||||
| Disulfide bond | 1372 ↔ 1386 | By similarity | |||||||||
| Disulfide bond | 1489 ↔ 1502 | By similarity | |||||||||
| Disulfide bond | 1497 ↔ 1511 | By similarity | |||||||||
| Disulfide bond | 1513 ↔ 1526 | By similarity | |||||||||
| Disulfide bond | 1532 ↔ 1542 | By similarity | |||||||||
| Disulfide bond | 1537 ↔ 1551 | By similarity | |||||||||
| Disulfide bond | 1553 ↔ 1566 | By similarity | |||||||||
| Disulfide bond | 1737 ↔ 1748 | By similarity | |||||||||
| Disulfide bond | 1743 ↔ 1757 | By similarity | |||||||||
| Disulfide bond | 1759 ↔ 1772 | By similarity | |||||||||
| Disulfide bond | 1778 ↔ 1793 | By similarity | |||||||||
| Disulfide bond | 1788 ↔ 1802 | By similarity | |||||||||
| Disulfide bond | 1804 ↔ 1817 | By similarity | |||||||||
Natural variations | |||||||||||
| Natural variant | 37 | 1 | R → M. Corresponds to variant rs934996 [ dbSNP | Ensembl ]. | VAR_059270 | |||||||
| Natural variant | 319 | 1 | P → Q. Corresponds to variant rs2304707 [ dbSNP | Ensembl ]. | VAR_055752 | |||||||
| Natural variant | 591 | 1 | P → S. Corresponds to variant rs2196862 [ dbSNP | Ensembl ]. | VAR_060337 | |||||||
| Natural variant | 1177 | 1 | V → M in WMS3. Ref.10 | VAR_068647 | |||||||
Experimental info | |||||||||||
| Mutagenesis | 1449 – 1450 | 2 | DL → EIFP: Gain-of-function. Forms a complex with TGFB1. Ref.4 | ||||||||
| Sequence conflict | 897 | 1 | K → Q in CAA86030. Ref.1 | ||||||||
| Sequence conflict | 1443 | 1 | S → T in CAA86030. Ref.1 | ||||||||
| Sequence conflict | 1615 | 1 | E → K in CAA86030. Ref.1 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification and characterization of LTBP-2, a novel latent transforming growth factor-beta-binding protein." Moren A., Olofsson A., Stenman G., Sahlin P., Kanzaki T., Claesson-Welsh L., ten Dijke P., Miyazono K., Heldin C. J. Biol. Chem. 269:32469-32478(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], CHARACTERIZATION. Tissue: Foreskin fibroblast. |
| [2] | "Analysis of the human gene encoding latent transforming growth factor-beta-binding protein-2." Bashir M.M., Han M.-D., Abrams W.R., Tucker T., Ma R.-I., Gibson M., Ritty T., Mecham R., Rosenbloom J. Int. J. Biochem. Cell Biol. 28:531-542(1996) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [3] | "The DNA sequence and analysis of human chromosome 14." Heilig R., Eckenberg R., Petit J.-L., Fonknechten N., Da Silva C., Cattolico L., Levy M., Barbe V., De Berardinis V., Ureta-Vidal A., Pelletier E., Vico V., Anthouard V., Rowen L., Madan A., Qin S., Sun H., Du H. Weissenbach J.Nature 421:601-607(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "Specific sequence motif of 8-Cys repeats of TGF-beta binding proteins, LTBPs, creates a hydrophobic interaction surface for binding of small latent TGF-beta." Saharinen J., Keski-Oja J. Mol. Biol. Cell 11:2691-2704(2000) [PubMed] [Europe PMC] [Abstract] Cited for: LACK OF INTERACTION WITH TGFB1, MUTAGENESIS OF 1449-ASP-LEU-1450. |
| [5] | "Latent transforming growth factor-beta binding proteins (LTBPs) --structural extracellular matrix proteins for targeting TGF-beta action." Saharinen J., Hyytiainen M., Taipale J., Keski-Oja J. Cytokine Growth Factor Rev. 10:99-117(1999) [PubMed] [Europe PMC] [Abstract] Cited for: REVIEW. |
| [6] | "The latent transforming growth factor beta binding protein (LTBP) family." Oklu R., Hesketh R. Biochem. J. 352:601-610(2000) [PubMed] [Europe PMC] [Abstract] Cited for: REVIEW. |
| [7] | "Null mutations in LTBP2 cause primary congenital glaucoma." Ali M., McKibbin M., Booth A., Parry D.A., Jain P., Riazuddin S.A., Hejtmancik J.F., Khan S.N., Firasat S., Shires M., Gilmour D.F., Towns K., Murphy A.L., Azmanov D., Tournev I., Cherninkova S., Jafri H., Raashid Y. Inglehearn C.F.Am. J. Hum. Genet. 84:664-671(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN GLC3D. |
| [8] | "A homozygous mutation in LTBP2 causes isolated microspherophakia." Kumar A., Duvvari M.R., Prabhakaran V.C., Shetty J.S., Murthy G.J., Blanton S.H. Hum. Genet. 128:365-371(2010) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN MSPKA. |
| [9] | "LTBP-2 has multiple heparin/heparan sulfate binding sites." Parsi M.K., Adams J.R., Whitelock J., Gibson M.A. Matrix Biol. 29:393-401(2010) [PubMed] [Europe PMC] [Abstract] Cited for: HEPARIN-BINDING REGIONS, INTERACTION WITH SDC4. |
| [10] | "LTBP2 mutations cause Weill-Marchesani and Weill-Marchesani-like syndrome and affect disruptions in the extracellular matrix." Haji-Seyed-Javadi R., Jelodari-Mamaghani S., Paylakhi S.H., Yazdani S., Nilforushan N., Fan J.B., Klotzle B., Mahmoudi M.J., Ebrahimian M.J., Chelich N., Taghiabadi E., Kamyab K., Boileau C., Paisan-Ruiz C., Ronaghi M., Elahi E. Hum. Mutat. 33:1182-1187(2012) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT WMS3 MET-1177. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | Z37976 mRNA. Translation: CAA86030.1. S82451 mRNA. Translation: AAB37459.1. AC013451 Genomic DNA. Translation: AAF87081.1. |
| IPI | IPI00292150. |
| PIR | A55494. |
| RefSeq | NP_000419.1. NM_000428.2. |
| UniGene | Hs.512776. Hs.597522. |
3D structure databases | |
| ProteinModelPortal | Q14767. |
| SMR | Q14767. Positions 171-221, 552-736, 856-1624, 1735-1819. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q14767. 2 interactions. |
| MINT | MINT-2806977. |
| STRING | 9606.ENSP00000261978. |
PTM databases | |
| PhosphoSite | Q14767. |
Polymorphism databases | |
| DMDM | 296439311. |
Proteomic databases | |
| PaxDb | Q14767. |
| PRIDE | Q14767. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000261978; ENSP00000261978; ENSG00000119681. |
| GeneID | 4053. |
| KEGG | hsa:4053. |
| UCSC | uc001xqa.3. human. |
Organism-specific databases | |
| CTD | 4053. |
| GeneCards | GC14M074965. |
| HGNC | HGNC:6715. LTBP2. |
| HPA | HPA003415. |
| MIM | 251750. phenotype. 602091. gene. 613086. phenotype. 614819. phenotype. |
| neXtProt | NX_Q14767. |
| Orphanet | 98976. Congenital glaucoma. 238763. Megalocornea - spherophakia - secondary glaucoma. |
| PharmGKB | PA164741922. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG318792. |
| HOGENOM | HOG000293153. |
| HOVERGEN | HBG052370. |
| InParanoid | Q14767. |
| KO | K08023. |
| OMA | GRDECWC. |
| OrthoDB | EOG46Q6RN. |
Enzyme and pathway databases | |
| Reactome | REACT_118779. Extracellular matrix organization. |
Gene expression databases | |
| ArrayExpress | Q14767. |
| Bgee | Q14767. |
| CleanEx | HS_LTBP2. HS_LTBP3. |
| Genevestigator | Q14767. |
| GermOnline | ENSG00000119681. Homo sapiens. |
Family and domain databases | |
| Gene3D | 3.90.290.10. 5 hits. |
| InterPro | IPR000742. EG-like_dom. IPR001881. EGF-like_Ca-bd. IPR013032. EGF-like_CS. IPR000152. EGF-type_Asp/Asn_hydroxyl_site. IPR018097. EGF_Ca-bd_CS. IPR009030. Growth_fac_rcpt. IPR017878. TB_dom. [Graphical view] |
| Pfam | PF00008. EGF. 1 hit. PF07645. EGF_CA. 17 hits. PF00683. TB. 4 hits. [Graphical view] |
| SMART | SM00181. EGF. 4 hits. SM00179. EGF_CA. 16 hits. [Graphical view] |
| SUPFAM | SSF57581. Fibril-assoc. 4 hits. SSF57184. Grow_fac_recept. 1 hit. |
| PROSITE | PS00010. ASX_HYDROXYL. 13 hits. PS00022. EGF_1. 2 hits. PS01186. EGF_2. 11 hits. PS50026. EGF_3. 15 hits. PS01187. EGF_CA. 16 hits. PS51364. TB. 4 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | LTBP2. human. |
| GenomeRNAi | 4053. |
| NextBio | 15880. |
| SOURCE | Search... |
Entry information
| Entry name | LTBP2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q14767 Secondary accession number(s): Q99907, Q9NS51 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| 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 chromosome 14 Human chromosome 14: 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 |
| SIMILARITY comments Index of protein domains and families |

Clusters with
