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TMPO |
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Available structures |
PDB |
Ortholog search: PDBe RCSB |
List of PDB id codes |
1GJJ, 1H9F, 1H9E
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Identifiers |
Aliases |
TMPO, CMD1T, LAP2, LEMD4, PRO0868, TP, thymopoietin |
External IDs |
OMIM: 188380 MGI: 106920 HomoloGene: 31144 GeneCards: 7112 |
Gene ontology |
Molecular function |
• DNA binding
• lamin binding
• protein binding
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Cellular component |
• nuclear inner membrane
• chromatin
• nuclear envelope
• endoplasmic reticulum membrane
• nucleus
• chromosome
• cytoplasm
• integral component of membrane
• nuclear membrane
• membrane
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Biological process |
• regulation of transcription, DNA-templated
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Sources:Amigo / QuickGO |
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RNA expression pattern |
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More reference expression data |
Orthologs |
Species |
Human |
Mouse |
Entrez |
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Ensembl |
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UniProt |
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RefSeq (mRNA) |
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NM_001032283
NM_001032284
NM_001307975
NM_003276
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NM_001080129
NM_001080130
NM_001080131
NM_001080132
NM_001080134
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NM_011605
NM_001283048
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RefSeq (protein) |
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NP_003267.1
NP_001027454.1
NP_001027455.1
NP_001294904.1
NP_001027454.1
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NP_001073598.1
NP_001073600.1
NP_001073601.1
NP_035735.2
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Location (UCSC) |
Chr 12: 98.52 – 98.55 Mb |
Chr 10: 91.15 – 91.17 Mb |
PubMed search |
[1] |
[2] |
Wikidata |
View/Edit Human |
View/Edit Mouse |
Lamina-associated polypeptide 2 (LAP2), isoforms beta/gamma is a protein that in humans is encoded by the TMPO gene.[1][2] LAP2 is an inner nuclear membrane (INM) protein.[3]
Thymopoietin is a protein involved in the induction of CD90 in the thymus. The thymopoetin (TMPO) gene encodes three alternatively spliced mRNAs encoding proteins of 75 kDa (alpha), 51 kDa (beta) and 39 kDa (gamma) which are ubiquitously expressed in all cells. The human TMPO gene maps to chromosome band 12q22 and consists of eight exons. TMPO alpha is present diffusely expressed with the cell nucleus while TMPO beta and gamma are localized to the nuclear membrane. TMPO beta is a human homolog of the murine protein LAP2. LAP2 plays a role in the regulation of nuclear architecture by binding lamin B1 and chromosomes. This interaction is regulated by phosphorylation during mitosis. Given the nuclear localization of the three TMPO isoforms, it is unlikely that these proteins play any role in CD90 induction.
Contents
- 1 Interactions
- 2 References
- 3 Further reading
- 4 External links
Interactions
Thymopoietin has been shown to interact with Barrier to autointegration factor 1,[4] AKAP8L,[5][6] LMNB1[7][8] and LMNA.[9][10]
References
- ^ Harris CA, Andryuk PJ, Cline S, Chan HK, Natarajan A, Siekierka JJ, Goldstein G (Jul 1994). "Three distinct human thymopoietins are derived from alternatively spliced mRNAs". Proceedings of the National Academy of Sciences of the United States of America 91 (14): 6283–7. doi:10.1073/pnas.91.14.6283. PMC 44185. PMID 7517549.
- ^ "Entrez Gene: TMPO thymopoietin".
- ^ Holmer L, Worman HJ (Nov 2001). "Inner nuclear membrane proteins: functions and targeting". Cellular and Molecular Life Sciences 58 (12-13): 1741–7. doi:10.1007/PL00000813. PMID 11766875.
- ^ Furukawa K (Aug 1999). "LAP2 binding protein 1 (L2BP1/BAF) is a candidate mediator of LAP2-chromatin interaction". Journal of Cell Science. 112 ( Pt 15) (15): 2485–92. PMID 10393804.
- ^ Martins SB, Eide T, Steen RL, Jahnsen T, Skålhegg BS, Collas P (Nov 2000). "HA95 is a protein of the chromatin and nuclear matrix regulating nuclear envelope dynamics". Journal of Cell Science. 113 Pt 21 (21): 3703–13. PMID 11034899.
- ^ Martins S, Eikvar S, Furukawa K, Collas P (Jan 2003). "HA95 and LAP2 beta mediate a novel chromatin-nuclear envelope interaction implicated in initiation of DNA replication". The Journal of Cell Biology 160 (2): 177–88. doi:10.1083/jcb.200210026. PMC 2172640. PMID 12538639.
- ^ Furukawa K, Kondo T (Feb 1998). "Identification of the lamina-associated-polypeptide-2-binding domain of B-type lamin". European Journal of Biochemistry / FEBS 251 (3): 729–33. doi:10.1046/j.1432-1327.1998.2510729.x. PMID 9490046.
- ^ Foisner R, Gerace L (Jul 1993). "Integral membrane proteins of the nuclear envelope interact with lamins and chromosomes, and binding is modulated by mitotic phosphorylation". Cell 73 (7): 1267–79. doi:10.1016/0092-8674(93)90355-T. PMID 8324822.
- ^ Markiewicz E, Dechat T, Foisner R, Quinlan RA, Hutchison CJ (Dec 2002). "Lamin A/C binding protein LAP2alpha is required for nuclear anchorage of retinoblastoma protein". Molecular Biology of the Cell 13 (12): 4401–13. doi:10.1091/mbc.E02-07-0450. PMC 138642. PMID 12475961.
- ^ Dechat T, Korbei B, Vaughan OA, Vlcek S, Hutchison CJ, Foisner R (Oct 2000). "Lamina-associated polypeptide 2alpha binds intranuclear A-type lamins". Journal of Cell Science. 113 Pt 19 (19): 3473–84. PMID 10984438.
Further reading
- Harris CA, Andryuk PJ, Cline SW, Mathew S, Siekierka JJ, Goldstein G (Jul 1995). "Structure and mapping of the human thymopoietin (TMPO) gene and relationship of human TMPO beta to rat lamin-associated polypeptide 2". Genomics 28 (2): 198–205. doi:10.1006/geno.1995.1131. PMID 8530026.
- Dechat T, Vlcek S, Foisner R (Apr 2000). "Review: lamina-associated polypeptide 2 isoforms and related proteins in cell cycle-dependent nuclear structure dynamics". Journal of Structural Biology 129 (2-3): 335–45. doi:10.1006/jsbi.2000.4212. PMID 10806084.
- Twomey JJ, Goldstein G, Lewis VM, Bealmear PM, Good RA (Jun 1977). "Bioassay determinations of thymopoietin and thymic hormone levels in human plasma". Proceedings of the National Academy of Sciences of the United States of America 74 (6): 2541–5. doi:10.1073/pnas.74.6.2541. PMC 432209. PMID 302007.
- Heavner GA, Audhya T, Goldstein G (Feb 1990). "Peptide analogs of thymopentin distinguish distinct thymopoietin receptor specificities on two human T cell lines". Regulatory Peptides 27 (2): 257–62. doi:10.1016/0167-0115(90)90044-W. PMID 2158125.
- Fuccello A, Audhya T, Talle MA, Goldstein G (Jan 1984). "Immunoassay for bovine serum thymopoietin: discrimination from splenin by monoclonal antibodies". Archives of Biochemistry and Biophysics 228 (1): 292–8. doi:10.1016/0003-9861(84)90070-5. PMID 6364989.
- Hara H, Hayashi K, Ohta K, Itoh N, Ohta M (Nov 1994). "A new thymopoietin precursor gene from human thymus". Biochemistry and Molecular Biology International 34 (5): 927–33. PMID 7703909.
- Goldstein G, Schlesinger DH, Audhya T (Jun 1994). "Isolation and complete amino acid sequence of human thymopoietin and splenin". Proceedings of the National Academy of Sciences of the United States of America 91 (13): 6249. doi:10.1073/pnas.91.13.6249. PMC 44176. PMID 8016147.
- Harris CA, Andryuk PJ, Cline SW, Mathew S, Siekierka JJ, Goldstein G (Jul 1995). "Structure and mapping of the human thymopoietin (TMPO) gene and relationship of human TMPO beta to rat lamin-associated polypeptide 2". Genomics 28 (2): 198–205. doi:10.1006/geno.1995.1131. PMID 8530026.
- Andersson B, Wentland MA, Ricafrente JY, Liu W, Gibbs RA (Apr 1996). "A "double adaptor" method for improved shotgun library construction". Analytical Biochemistry 236 (1): 107–13. doi:10.1006/abio.1996.0138. PMID 8619474.
- Berger R, Theodor L, Shoham J, Gokkel E, Brok-Simoni F, Avraham KB, Copeland NG, Jenkins NA, Rechavi G, Simon AJ (May 1996). "The characterization and localization of the mouse thymopoietin/lamina-associated polypeptide 2 gene and its alternatively spliced products". Genome Research 6 (5): 361–70. doi:10.1101/gr.6.5.361. PMID 8743987.
- Yu W, Andersson B, Worley KC, Muzny DM, Ding Y, Liu W, Ricafrente JY, Wentland MA, Lennon G, Gibbs RA (Apr 1997). "Large-scale concatenation cDNA sequencing". Genome Research 7 (4): 353–8. doi:10.1101/gr.7.4.353. PMC 139146. PMID 9110174.
- Furukawa K, Fritze CE, Gerace L (Feb 1998). "The major nuclear envelope targeting domain of LAP2 coincides with its lamin binding region but is distinct from its chromatin interaction domain". The Journal of Biological Chemistry 273 (7): 4213–9. doi:10.1074/jbc.273.7.4213. PMID 9461618.
- Furukawa K, Kondo T (Feb 1998). "Identification of the lamina-associated-polypeptide-2-binding domain of B-type lamin". European Journal of Biochemistry / FEBS 251 (3): 729–33. doi:10.1046/j.1432-1327.1998.2510729.x. PMID 9490046.
- Dechat T, Gotzmann J, Stockinger A, Harris CA, Talle MA, Siekierka JJ, Foisner R (Aug 1998). "Detergent-salt resistance of LAP2alpha in interphase nuclei and phosphorylation-dependent association with chromosomes early in nuclear assembly implies functions in nuclear structure dynamics". The EMBO Journal 17 (16): 4887–902. doi:10.1093/emboj/17.16.4887. PMC 1170818. PMID 9707448.
- Furukawa K (Aug 1999). "LAP2 binding protein 1 (L2BP1/BAF) is a candidate mediator of LAP2-chromatin interaction". Journal of Cell Science. 112 ( Pt 15) (15): 2485–92. PMID 10393804.
- Weber PJ, Eckhard CP, Gonser S, Otto H, Folkers G, Beck-Sickinger AG (Jun 1999). "On the role of thymopoietins in cell proliferation. Immunochemical evidence for new members of the human thymopoietin family". Biological Chemistry 380 (6): 653–60. doi:10.1515/BC.1999.081. PMID 10430029.
- Dechat T, Korbei B, Vaughan OA, Vlcek S, Hutchison CJ, Foisner R (Oct 2000). "Lamina-associated polypeptide 2alpha binds intranuclear A-type lamins". Journal of Cell Science. 113 Pt 19 (19): 3473–84. PMID 10984438.
- Martins SB, Eide T, Steen RL, Jahnsen T, Skålhegg BS, Collas P (Nov 2000). "HA95 is a protein of the chromatin and nuclear matrix regulating nuclear envelope dynamics". Journal of Cell Science. 113 Pt 21 (21): 3703–13. PMID 11034899.
External links
- Thymopoietins at the US National Library of Medicine Medical Subject Headings (MeSH)
PDB gallery
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1gjj: N-TERMINAL CONSTANT REGION OF THE NUCLEAR ENVELOPE PROTEIN LAP2
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1h9e: LEM-LIKE DOMAIN OF HUMAN INNER NUCLEAR MEMBRANE PROTEIN LAP2
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1h9f: LEM DOMAIN OF HUMAN INNER NUCLEAR MEMBRANE PROTEIN LAP2
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Hormones
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UpToDate Contents
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English Journal
- Investigation Into Efficiency of a Novel Glycol Chitosan-Bestatin Conjugate to Protect Thymopoietin Oligopeptides From Enzymatic Degradation.
- Zhang Y1, Feng J2, Cui L3, Zhang Y4, Li W5, Li C6, Shi N7, Chen Y8, Kong W9.
- Journal of pharmaceutical sciences.J Pharm Sci.2016 Feb;105(2):828-37. doi: 10.1002/jps.24567. Epub 2016 Jan 11.
- In this study, a novel glycol chitosan (GCS)-bestatin conjugate was synthesized and evaluated to demonstrate its efficacy in protecting thymopoietin oligopeptides from aminopeptidase-mediated degradation. Moreover, the mechanism and relative susceptibility of three thymopoietin oligopeptides, thymoc
- PMID 26173563
- Thymopoietin Beta and Gamma Isoforms as a Potential Diagnostic Molecular Marker for Breast Cancer: Preliminary Data.
- Marrero-Rodríguez D1, Taniguchi-Ponciano K, Lopez-Sleman J, Romero-Morelos P, Mendoza-Rodríguez M, Garcia I, Huerta-Padilla V, Mantilla A, Duarte A, Piña P, Rodriguez-Esquivel M, Lopez-Romero R, Parrazal-Romero J, Tobias-Alonso S, Jimenez-Vega F, Alvarez-Blanco M, Salcedo M.
- Pathology oncology research : POR.Pathol Oncol Res.2015 Sep;21(4):1045-50. doi: 10.1007/s12253-015-9907-x. Epub 2015 Apr 4.
- Thymopoietin (TMPO) is an inner nuclear membrane protein, the coding gene named equally, can give arise to six isoforms by alternative splicing. This gene has been found up regulated in several types of cancer. At present work, we evaluated the TMPO isoforms generated by alternative splicing as well
- PMID 25837847
Japanese Journal
- Chemical Synthesis and Application of C-Terminally 5-Carboxyfluorescein-labelled Thymopentin as a Fluorescent Probe for Thymopoietin Receptor
- Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 22(12), 1531-1535, 2006-12-10
- NAID 10020140152
- Chemical Synthesis and Application of C-Terminally 5-Carboxyfluorescein-labelled Thymopentin as a Fluorescent Probe for Thymopoietin Receptor
- Expression of a novel human myotonin kinase (MtPK) cDNA clone which encodes a protein with a thymopoietin-like domain in COS cells
Related Links
- thymopoietin /thy·mo·poi·e·tin/ (thi″mo-poi´ĕ-tin) a polypeptide hormone secreted by thymic epithelial cells that induces differentiation of precursor lymphocytes into thymocytes. thymopoietin [thi″mo-poi´ĕ-tin] a polypeptide hormone ...
- Human protein-coding gene TMPO. Represented by 662 ESTs from 256 cDNA libraries. Corresponds to 3 reference sequences (different isoforms). [UniGene 132750 - Hs.11355] ... EST Profile: Approximate expression patterns ...
Related Pictures
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