Katedra biológie
doc. Ing. Štefan Janeček, DrSc.
vysokoškolský pedagóg
Tituly, hodnosti
- Ing. - 1989
- CSc. - 1993
- DrSc. - 2002
- Doc. - 2015
Profesionálna kariéra
- 1993 - doteraz - Ústav molekulárnej biológie SAV, Bratislava - vedúci vedecký pracovník
- 2001 - doteraz - Fakulta prírodných vied UCM, Trnava - docent
- Laboratórium evolúcie proteínov - na Ústave molekulárnej biológie SAV v Bratislave https://imb.savba.sk/~janecek/
- odborný asistent na
Katedre biológie FPV UCM v Trnave - hlavné vyučované predmety: Molekulovo-biologické databázy,
Bioinformatika a Proteínový dizajn v bakalárskom a magisterskom stupni.
Štúdium
- Katedra biochemickej technológie, Chemicko-technologická fakulta STU v Bratislave
Ocenenia
- Cena SAV - 1997 a 2013
- Cena rektora UCM v Trnave - 2015
Vedenie prác
- Vedenie Bc. /Mgr. /rigorózne práce (počet) - 15
- Doktorandi počet (terajší) - 7 / 1 (ÚMB SAV) a 2 (FPV UCM)
- Mgr. Zuzana Janíčková - SEP 2017 - AUG 2021 - "In silico štúdium amyláz pre ich možný proteínový dizajn"
- Mgr. Filip Mareček - SEP 2018 - AUG 2022 - "Špecificita a evolúcia amylolytických enzýmov - rodiny, podrodiny a klany ich sekvencií a štruktúr"
Výskum
- Ťažisko práce je teoretické in silico štúdium proteínov - ich štruktúr vo vzťahu k ich funkcii, vlastnostiam a evolúcii. Hlavný záujem je o enzýmy z alfa-amylázovej rodiny - v súčasnosti v rámci klasifikácie CAZy (Carbohydrate Active enZymes) ide o rodiny glykozidových hydroláz GH13 (tvorí klan GH-H s rodinami GH70 a GH77), GH57 a GH119 (prípadne GH31 a GH126). Rovnaká pozornosť je venovaná aj bioinformatickým prístupom k štúdiu škrob-viažucich domén amylolytických enzýmov a ich analógov v neamylolytických enzýmoch a proteínoch, klasifikovaných do tzv. rodín CBM (carbohydrate-binding module families).
Členstvo vo vedeckých orgánoch
- VR FPV UCM v Trnave, člen
Členstvo v skúšobných komisiách
- Štátnicová komisia pre Bac. a Mgr. Na FPV UCM v Trnave, člen
Členstvo v odborových, habilitačných a inauguračných komisiách
- Komisia pre obhajoby doktorských dizertácií pre molekulárnu biológiu, člen
Projekty:
- VEGA (od roku 1996)
- APVV (LPP 2009)
Organizátorská a editorská činnosť
- zakladateľ a hlavný organizátor série medzinárodných konferencií o enzýmoch z alfa-amylázovej rodiny - ALAMY - od roku 2001 https://www.degruyter.com/view/j/amylase konajú každé tri roky (2001, 2004, 2007, 2010, 2013, 2016, 2019) na Slovensku v Kongresovom centre SAV na Smolenickom zámku: https://imb.savba.sk/~janecek/Alamys/
- zakladateľ a hlavný editor časopisu "Amylase"; časopis "Amylase": zakladateľ a Editor-in-Chief;
- časopis "3Biotech": Associate Editor;
- časopis "Biologia", section Cellular and Molecular Biology: Managing Editor.
- časopis "Enzyme and Microbial Technology": Editorial Board Member.
- Ad hoc recenzent pre časopisy v odbore Life Sciences.
Spolupráca v zahraničí
- Prof. Birte Svensson, Enzyme and Protein Chemistry, Department of Systems Biology, Technical University of Denmark, Kgs. Lyngby - Copenhagen, Dánsko
- Prof. Marc J.E.C. van der Maarel, Department Aquatic Biotechnology and Bioproduct Engineering, University of Groningen, Groningen, Holandsko
- Dr. Dessy Natalia, Biochemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonézia
- Dr. Kian Mau Goh, Department of Biosciences and Health Sciences, Universiti Teknologi Malaysia, Johor Bahru, Malajzia
- Dr. Jean-Luc Da Lage, Laboratoire Evolution, Génomes Comportement, Ecologie, CNRS, Université Paris Sud, Gif sur Yvette, Francúzko
- Dr. Natasa Bozic, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Srbsko
- Dr. Paweł Filipkowski, Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poľsko
- Dr. Matthew S. Gentry, Department of Molecular and Cellular Biochemistry, Epilepsy and Brain Metabolism Alliance, and Epilepsy Research Center, University of Kentucky College of Medicine, Lexington, KY, USA
Vybrané publikácie
- Janeček, Š.: New conserved amino acid region of α-amylases in the third loop of their (β/α)8-barrel domains. Biochemical Journal 1992, 288: 1069-1070.
- Janeček, Š.: Sequence similarities and evolutionary relationships of microbial, plant and animal α-amylases. European Journal of Biochemistry 1994, 224: 519-524.
- Janeček, Š., MacGregor, E.A. & Svensson, B.: Characteristic differences in the primary structure allow discrimination of cyclodextrin glucanotransferases from α-amylases. Biochemical Journal 1995, 305: 685-686.
- Janeček, Š.: α-Amylase family: molecular biology and evolution. Progress in Biophysics and Molecular Biology 1997, 67: 67-97.
- Janeček, Š., Svensson, B. & Henrissat, B.: Domain evolution in the α-amylase family. Journal of Molecular Evolution 1997, 45: 322-331.
- Janeček, Š., Lévêque, E., Belarbi, A. & Haye, B.: Close evolutionary relatedness of α-amylases from archaea and plants. Journal of Molecular Evolution 1999, 48: 421-426.
- Janeček, Š. & Ševčík, J.: The evolution of starch-binding domain. FEBS Letters 1999, 456: 119-125.
- Lévêque, E., Janeček, Š., Belarbi, A. & Haye, B.: Thermophilic archaeal amylolytic enzymes. Enzyme and Microbial Technology 2000, 26: 2-13.
- MacGregor, E.A., Janeček, Š. & Svensson, B.: Relationship of sequence and structure to specificity in the α-amylase family of enzymes. Biochimica et Biophysica Acta 2001, 1546: 1-20.
- Oslancová, A. & Janeček, Š.: Oligo-1,6-glucosidase and neopullulanase enzyme subfamilies from the α-amylase family defined by the fifth conserved sequence region. Cellular and Molecular Life Sciences 2002, 59: 1945-1959.
- Janeček, Š.: How many conserved sequence regions are there in the α-amylase family? Biologia 2002, 57 (Suppl. 11): 29-41.
- Janeček, Š., Svensson, B. & MacGregor, E.A.: Relation between domain evolution, specificity, and taxonomy of the α-amylase family members containing a C-terminal starch-binding domain. European Journal of Biochemistry 2003, 270: 635-645.
- Da Lage, J.L., Feller, G. & Janeček, Š.: Horizontal gene transfer from Eukarya to Bacteria and domain shuffling: the α-amylase model. Cellular and Molecular Life Sciences 2004, 61: 97-109.
- Zona, R., Chang-Pi-Hin, F., O'Donohue, M.J. & Janeček, Š.: Bioinformatics of the glycoside hydrolase family 57 and identification of catalytic residues in amylopullulanase from Thermococcus hydrothermalis. European Journal of Biochemistry 2004, 271: 2863-2872.
- Machovič, M., Svensson, B., MacGregor, E.A. & Janeček, Š.: A new clan of CBM families based on bioinformatics of starch-binding domains from families CBM20 and CBM21. FEBS Journal 2005, 272: 5497-5513.
- Machovič, M. & Janeček, Š.: Starch-binding domains in the post-genome era. Cellular and Molecular Life Sciences 2006, 63: 2710-2724.
- Machovič, M. & Janeček, Š.: The evolution of putative starch-binding domains. FEBS Letters 2006, 580: 6349-6356.
- van der Kaaij, R.M., Janeček, Š., van der Maarel, M.J., Dijkhuizen, L.: Phylogenetic and biochemical characterization of a novel cluster of intracellular fungal α-amylase enzymes. Microbiology 2007, 153: 4003-4015.
- Godány, A., Vidová, B. & Janeček, Š.: The unique glycoside hydrolase family 77 amylomaltase from Borrelia burgdorferi with only catalytic triad conserved. FEMS Microbiology Letters 2008, 284: 84-91.
- Christiansen, C., Abou Hachem, M., Janeček, Š., Viksø-Nielsen, A., Blennow, A. & Svensson, B.: The carbohydrate-binding module family 20 - diversity, structure, and function. FEBS Journal 2009, 276: 5006-5029.
- Gabriško, M. & Janeček, Š.: Looking for the ancestry of the heavy-chain subunits of heteromeric amino acid transporters rBAT and 4F2hc within the GH13 α-amylase family. FEBS Journal 2009, 276: 7265-7278.
- Janeček, Š. & Blesák, K.: Sequence-structural features and evolutionary relationships of family GH57 α-amylases and their putative alpha-amylase-like homologues. Protein Journal 2011, 30: 429-435.
- Janeček, Š., Svensson, B. & MacGregor, E.A.: Structural and evolutionary aspects of two families of non-catalytic domains present in starch and glycogen binding proteins from microbes, plants and animals. Enzyme and Microbial Technology 2011, 49: 429-440.
- Blesák, K. & Janeček, Š.: Sequence fingerprints of enzyme specificities from the glycoside hydrolase family GH57 Extremophiles 2012, 16: 497-506.
- Janeček, Š. & Kuchtová, A.: In silico identification of catalytic residues and domain fold of the family GH119 sharing the catalytic machinery with the α-amylase family GH57. FEBS Letters 2012, 586: 3360-3366.
- Puspasari, F., Radjasa, O., Noer, A., Nurachman, Z., Syah, Y., van der Maarel, M., Dijkhuizen, L., Janeček, Š. & Natalia, D.: Raw starch degrading α-amylase from Bacillus aquimaris MKSC 6.2: isolation and expression of the gene, bioinformatics and biochemical characterization of the recombinant enzyme. Journal of Applied Microbiology 2013, 114: 108-120.
- Majzlová, K., Pukajová, Z. & Janeček, Š.: Tracing the evolution of the α-amylase subfamily GH13_36 covering the amylolytic enzymes intermediate between oligo-1,6-glucosidases and neopullulanases. Carbohydrate Research 2013, 367: 48-57.
- Da Lage, J.L., Binder, M., Hua-Van, A., Janeček, Š. & Casane, D.: Gene make-up: rapid and massive intron gains after horizontal transfer of a bacterial α-amylase gene to Basidiomycetes. BMC Evolutionary Biology 2013, 13: 40.
- Blesák, K. & Janeček, Š.: Two potentially novel amylolytic enzyme specificities in the prokaryotic glycoside hydrolase α-amylase family GH57. Microbiology 2013, 159: 2584-2593.
- Janeček, Š., Svensson, B. & MacGregor, E.A.: α-Amylase - an enzyme specificity found in various families of glycoside hydrolases. Cellular and Molecular Life Sciences 2014, 71: 1149-1170.
- Ranjani, V., Janeček, Š., Chai, K.P., Shahir, S., Noor, R., Abdul Rahman, Z.R., Chan, K.G. & Goh, K.M.: Protein engineering of selected residues from conserved sequence regions of a novel Anoxybacillus α-amylase. Scientific Reports 2014, 4: Art. No. 5850.
- Kuchtová, A. & Janeček, Š.: In silico analysis of family GH77 with focus on amylomaltases from borreliae and disproportionating enzymes DPE2 from plants and bacteria. Biochimica et Biophysica Acta 2015, 1854: 1260-1268.
- Janeček, Š. & Gabriško, M.: Remarkable evolutionary relatedness among the enzymes and proteins from the α-amylase family. Cellular and Molecular Life Sciences 2016, 73: 2707-2725.
- Kuchtová, A. & Janeček, Š.: Domain evolution in enzymes of the neopullulanase subfamily. Microbiology 2016, 162: 2099-2115.
- Janeček, Š., Majzlová, K., Svensson, B. & MacGregor, E.A.: The starch-binding domain family CBM41 - an in silico analysis of evolutionary relationships. Proteins: Structure, Function, and Bioinformatics 2017, 85: 1480-1492.
- Sarian, F.D., Janeček, Š., Pijning, T., Ihsanawati, Nurachman, Z., Radjasa, O.K., Dijkhuizen, L., Natalia, D. & van der Maarel, M.J.E.C.: A new group of glycoside hydrolase family 13 α-amylases with an aberrant catalytic triad. Scientific Reports 2017, 7: 44230.
- Kuchtová, A., Gentry, M.S. & Janeček, Š.: A unique evolution of the carbohydrate-binding module CBM20 in laforin. FEBS Letters 2018, 592: 586-598.
- Martinovičová, M. & Janeček, Š.: In silico analysis of the α-amylase family GH57 - eventual subfamilies reflecting enzyme specificities. 3 Biotech 2018, 8: 307.
- Zhang, X., Leemhuis, H., Janeček, Š., Martinovičová, M., Pijning, T. & van der Maarel, M.J.E.C.: Identification of Thermotoga maritima MSB8 GH57 α-amylase AmyC as a glycogen-branching enzyme with high hydrolytic activity. Applied Microbiology and Biotechnology 2019, 103: 6141-6151.
- Janeček, Š., Mareček, F., MacGregor, E.A. & Svensson, B.: Starch-binding domains as CBM families - history, occurrence, structure, function and evolution. Biotechnology Advances 2019, 37: 107451.