Troponina I tipo 3
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| PDB 1j1d | |
Troponina I tipo 3 (cardíaca)
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| Identificadores | |
| Símbolo | TNNI3 |
| Símbolos alt. | CMH7 |
| Entrez | 7137 |
| HUGO | 11947 |
| OMIM | |
| RefSeq | NM_000363 |
| UniProt | P19429 |
| Outros datos | |
| Locus | Cr. 19 q13.4 |
A troponina I, músculo cardíaco ou troponina I tipo 3 (TNNI3) é unha proteína que nos humanos está codificada no xene TNNI3 do cromosoma 19.[1][2] É unha das tres isoformas da troponina I; as outras dúas son TNNI1 e TNNI2. Esta isoforma exprésase no músculo cardíaco. Únese á actina dos filamentos finos musculares mantendo inhibida a contracción muscular (cando o calcio se une á troponina C esta inhibición desaparece). A troponina é un complexo de tres subunidades: troponina C, I e T.
Interaccións[editar | editar a fonte]
A TNNI3 interacciona con PKD2L1,[3] e coa troponina C tipo 1.[4][5][6][7][8] Está mutada en moitos caosos de enfermidade renal policística 2.[9]
Notas[editar | editar a fonte]
- ↑ Mogensen J, Kruse TA, Borglum AD (Jun 1998). "Assignment of the human cardiac troponin I gene (TNNI3) to chromosome 19q13.4 by radiation hybrid mapping". Cytogenet Cell Genet 79 (3-4): 272–3. PMID 9605869. doi:10.1159/000134740.
- ↑ Kimura A, Harada H, Park JE, Nishi H, Satoh M, Takahashi M, Hiroi S, Sasaoka T, Ohbuchi N, Nakamura T, Koyanagi T, Hwang TH, Choo JA, Chung KS, Hasegawa A, Nagai R, Okazaki O, Nakamura H, Matsuzaki M, Sakamoto T, Toshima H, Koga Y, Imaizumi T, Sasazuki T (Aug 1997). "Mutations in the cardiac troponin I gene associated with hypertrophic cardiomyopathy". Nat Genet 16 (4): 379–82. PMID 9241277. doi:10.1038/ng0897-379.
- ↑ Li, Qiang; Liu Yan; Shen Patrick Y; Dai Xiao-Qing; Wang Shaohua; Smillie Lawrence B; Sandford Richard; Chen Xing-Zhen (Jun 2003). "Troponin I binds polycystin-L and inhibits its calcium-induced channel activation". Biochemistry (United States) 42 (24): 7618–25. ISSN 0006-2960. PMID 12809519. doi:10.1021/bi034210a.
- ↑ Ward, Douglas G; Brewer Susan M; Gallon Clare E; Gao Yuan; Levine Barry A; Trayer Ian P (May 2004). "NMR and mutagenesis studies on the phosphorylation region of human cardiac troponin I". Biochemistry (United States) 43 (19): 5772–81. ISSN 0006-2960. PMID 15134451. doi:10.1021/bi036310m.
- ↑ Ward, Douglas G; Brewer Susan M; Calvert Melanie J; Gallon Clare E; Gao Yuan; Trayer Ian P (Apr 2004). "Characterization of the interaction between the N-terminal extension of human cardiac troponin I and troponin C". Biochemistry (United States) 43 (13): 4020–7. ISSN 0006-2960. PMID 15049709. doi:10.1021/bi036128l.
- ↑ Ward, Douglas G; Brewer Susan M; Cornes Michael P; Trayer Ian P (Sep 2003). "A cross-linking study of the N-terminal extension of human cardiac troponin I". Biochemistry (United States) 42 (34): 10324–32. ISSN 0006-2960. PMID 12939162. doi:10.1021/bi034495r.
- ↑ Wang, Xu; Li Monica X; Sykes Brian D (Aug 2002). "Structure of the regulatory N-domain of human cardiac troponin C in complex with human cardiac troponin I147-163 and bepridil". J. Biol. Chem. (United States) 277 (34): 31124–33. ISSN 0021-9258. PMID 12060657. doi:10.1074/jbc.M203896200.
- ↑ Li, Monica X; Saude Erik J; Wang Xu; Pearlstone Joyce R; Smillie Lawrence B; Sykes Brian D (Jul 2002). "Kinetic studies of calcium and cardiac troponin I peptide binding to human cardiac troponin C using NMR spectroscopy". Eur. Biophys. J. (Germany) 31 (4): 245–56. ISSN 0175-7571. PMID 12122471. doi:10.1007/s00249-002-0227-1.
- ↑ Li, Qiang; Shen Patrick Y; Wu Guanqing; Chen Xing-Zhen (Jan 2003). "Polycystin-2 interacts with troponin I, an angiogenesis inhibitor". Biochemistry (United States) 42 (2): 450–7. ISSN 0006-2960. PMID 12525172. doi:10.1021/bi0267792.
Véxase tamén[editar | editar a fonte]
Bibliografía[editar | editar a fonte]
- Ni CY (2002). "Cardiac troponin I: a biomarker for detection and risk stratification of minor myocardial damage.". Clin. Lab. 47 (9-10): 483–92. PMID 11596911.
- Hunkeler NM, Kullman J, Murphy AM (1991). "Troponin I isoform expression in human heart.". Circ. Res. 69 (5): 1409–14. PMID 1934363. doi:10.1161/01.res.69.5.1409.
- MacGeoch C, Barton PJ, Vallins WJ; et al. (1992). "The human cardiac troponin I locus: assignment to chromosome 19p13.2-19q13.2.". Hum. Genet. 88 (1): 101–4. PMID 1959915. doi:10.1007/BF00204938.
- Vallins WJ, Brand NJ, Dabhade N; et al. (1990). "Molecular cloning of human cardiac troponin I using polymerase chain reaction.". FEBS Lett. 270 (1-2): 57–61. PMID 2226790. doi:10.1016/0014-5793(90)81234-F.
- Mittmann K, Jaquet K, Heilmeyer LM (1990). "A common motif of two adjacent phosphoserines in bovine, rabbit and human cardiac troponin I.". FEBS Lett. 273 (1-2): 41–5. PMID 2226863. doi:10.1016/0014-5793(90)81046-Q.
- Noland TA, Raynor RL, Kuo JF (1990). "Identification of sites phosphorylated in bovine cardiac troponin I and troponin T by protein kinase C and comparative substrate activity of synthetic peptides containing the phosphorylation sites.". J. Biol. Chem. 264 (34): 20778–85. PMID 2584239.
- Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides.". Gene 138 (1-2): 171–4. PMID 8125298. doi:10.1016/0378-1119(94)90802-8.
- Armour KL, Harris WJ, Tempest PR (1993). "Cloning and expression in Escherichia coli of the cDNA encoding human cardiac troponin I.". Gene 131 (2): 287–92. PMID 8406024. doi:10.1016/0378-1119(93)90308-P.
- Bhavsar PK, Brand NJ, Yacoub MH, Barton PJ (1996). "Isolation and characterization of the human cardiac troponin I gene (TNNI3).". Genomics 35 (1): 11–23. PMID 8661099. doi:10.1006/geno.1996.0317.
- Jideama NM, Noland TA, Raynor RL; et al. (1996). "Phosphorylation specificities of protein kinase C isozymes for bovine cardiac troponin I and troponin T and sites within these proteins and regulation of myofilament properties.". J. Biol. Chem. 271 (38): 23277–83. PMID 8798526. doi:10.1074/jbc.271.38.23277.
- Takeda S, Kobayashi T, Taniguchi H; et al. (1997). "Structural and functional domains of the troponin complex revealed by limited digestion.". Eur. J. Biochem. 246 (3): 611–7. PMID 9219516. doi:10.1111/j.1432-1033.1997.00611.x.
- Keane NE, Quirk PG, Gao Y; et al. (1997). "The ordered phosphorylation of cardiac troponin I by the cAMP-dependent protein kinase--structural consequences and functional implications.". Eur. J. Biochem. 248 (2): 329–37. PMID 9346285. doi:10.1111/j.1432-1033.1997.00329.x.
- Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K; et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library.". Gene 200 (1-2): 149–56. PMID 9373149. doi:10.1016/S0378-1119(97)00411-3.
- Vassylyev DG, Takeda S, Wakatsuki S; et al. (1998). "Crystal structure of troponin C in complex with troponin I fragment at 2.3-A resolution.". Proc. Natl. Acad. Sci. U.S.A. 95 (9): 4847–52. PMC 20176. PMID 9560191. doi:10.1073/pnas.95.9.4847.
- Barton PJ, Cullen ME, Townsend PJ; et al. (1999). "Close physical linkage of human troponin genes: organization, sequence, and expression of the locus encoding cardiac troponin I and slow skeletal troponin T.". Genomics 57 (1): 102–9. PMID 10191089. doi:10.1006/geno.1998.5702.
- Li MX, Spyracopoulos L, Sykes BD (1999). "Binding of cardiac troponin-I147-163 induces a structural opening in human cardiac troponin-C.". Biochemistry 38 (26): 8289–98. PMID 10387074. doi:10.1021/bi9901679.
- Redwood C, Lohmann K, Bing W; et al. (2000). "Investigation of a truncated cardiac troponin T that causes familial hypertrophic cardiomyopathy: Ca(2+) regulatory properties of reconstituted thin filaments depend on the ratio of mutant to wild-type protein.". Circ. Res. 86 (11): 1146–52. PMID 10850966. doi:10.1161/01.res.86.11.1146.
- Ward DG, Ashton PR, Trayer HR, Trayer IP (2001). "Additional PKA phosphorylation sites in human cardiac troponin I.". Eur. J. Biochem. 268 (1): 179–85. PMID 11121119. doi:10.1046/j.1432-1327.2001.01871.x.
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