A novel metalloprotease from Vipera lebetina venom induces human endothelial cell apoptosisTrummal, Katrin; Tõnismägi, Külli; Siigur, Ene; Aaspõllu, Anu; Lopp, Annika; Sillat, Tarvo; Saat, Riste; Kasak, Lagle; Tammiste, Indrek; Kogerman, Priit; Kalkkinen, Nisse; Siigur, JüriToxicon2005 / 1, p. 46-61

A set of ribosomal RNA gene copies in a single individual of Ephydatia fluviatilisKarlep, L.; Aas, Nele; Salonen, S.; Lopp, Annika; Reintamm, Tõnu; Kelve, MerikeVIII World Sponge Conference : Ancient Animals, new Challenges : Girona (Spain), 20-24 September 2010 : book of abstracts2010 / p. 228

Characterization of the oligoadenylate synthetase subgroup from phylum Porifera = Hõimkonna Porifera oligoadenülaadi süntetaaside alamrühma iseloomustaminePäri, Mailis2014 https://digi.lib.ttu.ee/i/?1821 https://www.ester.ee/record=b4439680*est

Cloning and expression of ATP N-glycosidase from the freshwater sponge Ephydatia muelleriReintamm, Tõnu; Vallmann, Kerli; Kolk, Kaidi; Päri, Mailis; Lopp, Annika; Aas-Valleriani, Nele; Kelve, MerikeBiochimie2019 / p. 126-129 https://doi.org/10.1016/j.biochi.2018.12.018 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Enzymatically active 2',5'-oligoadenylate synthetases are widely distributed among Metazoa, including protostome lineagePäri, Mailis; Kuusksalu, Anne; Lopp, Annika; Hansen Kjaer, Karina; Justesen, Just; Kelve, MerikeBiochimie2014 / p. 200-209 : ill

Expressed 2–5A synthetase genes and pseudogenes in the marine sponge Geodia barrettiVallmann, Kerli; Aas, Nele; Reintamm, Tõnu; Lopp, Annika; Kuusksalu, Anne; Kelve, MerikeGene2011 / p. 42-49 : ill

Expression and activity of 2-5A synthetase in course of differentiation and apoptosis of PC12 cellsLopp, Annika; Samuel, Külli; Kelve, MerikeEuropean cytokine network1998 / p. 447

Expression and activity of 2-5A synthetase in the course of differentiation and apoptosis of PC12 cellsLopp, Annika; Kuusksalu, Anne; Samuel, Külli; Kelve, MerikeCytokine2000 / p. 737-741

Expression and characterization of recombinant 2',5'-oligoadenylate synthetase from the marine sponge Geodia cydoniumPäri, Mailis; Kuusksalu, Anne; Lopp, Annika; Reintamm, Tõnu; Justesen, Just; Kelve, MerikeFEBS journal2007 / 13, p. 3462-3474

Expression and characterization of recombinant 2',5'-oligoadenylate synthetase from the marine sponge Geodia cydoniumLopp, Annika; Päri, Mailis; Kuusksalu, Anne; Reintamm, Tõnu; Justesen, Just; Kelve, MerikeJournal of interferon and cytokine research2007 / 8, p. 719

Freshwater sponges in Estonia : genetic and morphological identificationRoovere, Tiiu; Lopp, Annika; Reintamm, Tõnu; Kuusksalu, Anne; Richelle-Maurer, Evelyn; Kelve, MerikeProceedings of the Estonian Academy of Sciences. Biology. Ecology2006 / 3, p. 216-227 : ill

Identification of a novel member of 2H phosphoesterases, 2',5'-oligoadenylate degrading ribonuclease from the oyster Crassostrea gigasLopp, Annika; Reintamm, Tõnu; Kuusksalu, Anne; Olspert, Allan; Kelve, MerikeBiochimie2019 / p. 181–195 : ill https://doi.org/10.1016/j.biochi.2018.09.003 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Interferon-induced 2',5'-oligoadenylate synthetases versus those from sponges, evolutionarily lowest multicellular animalsKuusksalu, Anne; Lopp, Annika; Päri, Mailis; Reintamm, Tõnu; Kelve, MerikeCytokine2009 / 1/2, p. 85-86

Lihtsad, aga mitte primitiivsed loomad [käsnad]Lopp, Annika; Kelve, MerikeEesti Loodus2011 / 6/7, lk. 12-18 : ill

Molecular identification, characterization and distribution of freshwater sponges (Porifera: Spongillidae) in EstoniaLopp, Annika; Reintamm, Tõnu; Vallmann, Kerli; Päri, Mailis; Mikli, Valdek; Richelle-Maurer, Evelyn; Kelve, MerikeFundamental and applied limnology = Archiv für Hydrobiologie2007 / 1, p. 93-103

Natural 2',5'-linked oligoribonucleotides from marine spongesLopp, Annika; Reintamm, Tõnu; Rapp, Hans Tore; Hoffmann, Friederike; Kelve, Merike6th European Conference on Marine Natural Products : Porto, Portugal, 19-23 July 2009 : programme & abstracts book2009 / ? p

Natural occurrence of 2′,5′-linked heteronucleotides in marine spongesLopp, Annika; Reintamm, Tõnu; Kuusksalu, Anne; Tammiste, Indrek; Pihlak, Arno; Kelve, MerikeMarine drugs2010 / 2, p. 235-254

New cytotoxic sterols from the soft coral Gersemia fruticosaKoljak, Reet; Lopp, Annika; Pehk, Tõnis; Varvas, Külliki; Müürisepp, Aleksander-Mati; Järving, Ivar; Samel, NigulasTetrahedron1998 / p. 179-186

1-methyladenine - the major adenylate derived secondary metabolite of the marine sponge Geodia cydoniumReintamm, Tõnu; Lopp, Annika; Kelve, Merike5th European Conference on Marine Natural Products : September 16-21, 2007, Ischia, Naples, Italy2007 / p. 183

Sponge 2-5A synthetases form the distinct subgroup of the 2-5A synthetase familyKuusksalu, Anne; Reintamm, Tõnu; Lopp, Annika; Päri, Mailis; Kelve, MerikeVIII World Sponge Conference : Ancient Animals, new Challenges : Girona (Spain), 20-24 September 2010 : book of abstracts2010 / p. 239

Sponge OAS has a distinct genomic structure within the 2-5A synthetase familyReintamm, Tõnu; Kuusksalu, Anne; Metsis, Madis; Päri, Mailis; Vallmann, Kerli; Lopp, Annika; Justesen, Just; Kelve, MerikeMolecular genetics and genomics2008 / p. 453-466 : ill

Stress protein HSP70 from marine sponge T. muricataVallmann, Kerli; Kivisild, Carmen; Lopp, AnnikaAbstracts : ninth world sponge conference 20132013 / p. 170

Synthesis and antiproliferative activity of 15-oxoprostaglandins : contribution of the W-chain enone group to cytotoxicityLopp, Margus; Lopp, Annika; Paju, Anne; Lille, Ülo; Pehk, TõnisBioorganic & medicinal chemistry letters1994 / 14, p. 1739-1744: ill

Synthesis of 2',5'-linked nucleotides by OAS from marine spongesLopp, Annika; Reintamm, Tõnu; Kuusksalu, Anne; Tammiste, Indrek; Pihlak, Arno; Kelve, MerikeVIII World Sponge Conference : Ancient Animals, new Challenges : Girona (Spain), 20-24 September 2010 : book of abstracts2010 / p. 257

The stress protein HSP70 from the marine sponge Thenea muricataVallmann, Kerli; Kivisild, Carmen; Lopp, Annika; Rapp, Hans Tore; Kelve, MerikeJournal of the Marine Biological Association of the United Kingdom2016 / p. 573-581 : ill https://doi.org/10.1017/S0025315415002234

2-5A synthetase induction during PC12 cell death induced by serum starvationLopp, Annika; Kuusksalu, Anne; Samuel, Külli; Kelve, MerikeProceedings of the Estonian Academy of Sciences. Chemistry1999 / 3, p. 109-118

Uued tsütotoksilised 15-oksoprostaglandiinid : süntees ja antiproliferatiivne aktiivsus inimese leukeemia K562 rakuliinilLopp, Annika; Paju, Anne; Pehk, Tõnis; Lopp, MargusXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 16th Estonian chemistry days : abstracts of scientific conference1995 / lk. 67-70

Uued tsütotoksilised steroidid korallist Gersemia fruticosa = New cytotoxic sterols from the soft coral Gersemia fruticosaKoljak, Reet; Lopp, Annika; Pehk, Tõnis; Varvas, Külliki; Järving, Ivar; Samel, NigulasXVII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 17th Estonian Chemistry Days : abstracts of scientific conference1996 / lk. 81-82 https://www.ester.ee/record=b1070511*est