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Igor Krizaj

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Andrej Razpotnik; Igor Krizaj; Jernej Sribar; Dusan Kordis; Peter Maček; Robert Frangez; William R Kem; Tom Turk
A new phospholipase A2 isolated from the sea anemone Urticina crassicornis - its primary structure and phylogenetic classification.
Beata Halassy; Lidija Habjanec; Maja Lang Balija; Tihana Kurtović; Marija Brgles; Igor Krizaj
Ammodytoxin content of Vipera ammodytes ammodytes venom as a prognostic factor for venom immunogenicity.
Slavko Ceru; Spela Konjar; Katarina Maher; Urska Repnik; Igor Krizaj; Mojca Bencina; Miha Renko; Alain Nepveu; Eva Zerovnik; Boris Turk; Natasa Kopitar-Jerala
Stefin B interacts with histones and cathepsin L in the nucleus.

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2010: Andrej Razpotnik; Igor Krizaj; Jernej Sribar; Dusan Kordis; Peter Maček; Robert Frangez; William R Kem; Tom Turk
A new phospholipase A2 isolated from the sea anemone Urticina crassicornis - its primary structure and phylogenetic classification.
The FEBS journal 2010;277(12):2641-53.
2010: Beata Halassy; Lidija Habjanec; Maja Lang Balija; Tihana Kurtović; Marija Brgles; Igor Krizaj
Ammodytoxin content of Vipera ammodytes ammodytes venom as a prognostic factor for venom immunogenicity.
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 2010;151(4):455-60.
2010: Slavko Ceru; Spela Konjar; Katarina Maher; Urska Repnik; Igor Krizaj; Mojca Bencina; Miha Renko; Alain Nepveu; Eva Zerovnik; Boris Turk; Natasa Kopitar-Jerala
Stefin B interacts with histones and cathepsin L in the nucleus.
The Journal of biological chemistry 2010;285(13):10078-86.
2010: Frederick A Saul; Petra Prijatelj-Znidarsic; Brigitte Vulliez-Le Normand; Benoit Villette; Bertrand Raynal; Joze Pungercar; Igor Krizaj; Grazyna FAURE
Comparative structural studies of two natural isoforms of ammodytoxin, phospholipases A2 from Vipera ammodytes ammodytes which differ in neurotoxicity and anticoagulant activity.
Journal of structural biology 2010;169(3):360-9.
2009: U Logonder; Z Jenko-Praznikar; T Scott-Davey; Joze Pungercar; Igor Krizaj; J B Harris
Ultrastructural evidence for the uptake of a neurotoxic snake venom phospholipase A2 into mammalian motor nerve terminals.
Experimental neurology 2009;219(2):591-4.
2009: Andrej Razpotnik; Igor Krizaj; William R Kem; Peter Maček; Tom Turk
A new cytolytic protein from the sea anemone Urticina crassicornis that binds to cholesterol- and sphingomyelin-rich membranes.
Toxicon : official journal of the International Society on Toxinology 2009;53(7-8):762-9.
2008: Uros Logonder; Igor Krizaj; Edward G Rowan; John B Harris
Neurotoxicity of ammodytoxin a in the envenoming bites of Vipera ammodytes ammodytes.
Journal of neuropathology and experimental neurology 2008;67(10):1011-9.
2008: Adrijana Leonardi; Jay W Fox; Alenka Trampus-Bakija; Igor Krizaj
Two coagulation factor X activators from Vipera a. ammodytes venom with potential to treat patients with dysfunctional factors IXa or VIIa.
Toxicon : official journal of the International Society on Toxinology 2008;52(5):628-37.
2008: Petra Prijatelj; Zala Jenko Praznikar; Toni Petan; Igor Krizaj; Joze Pungercar
Mapping the structural determinants of presynaptic neurotoxicity of snake venom phospholipases A2.
Toxicon : official journal of the International Society on Toxinology 2008;51(8):1520-9.
2007: Joze Pungercar; Igor Krizaj
Understanding the molecular mechanism underlying the presynaptic toxicity of secreted phospholipases A2.
Toxicon : official journal of the International Society on Toxinology 2007;50(7):871-92.
2007: Toni Petan; Igor Krizaj; Joze Pungercar
Restoration of enzymatic activity in a Ser-49 phospholipase A2 homologue decreases its Ca(2+)-independent membrane-damaging activity and increases its toxicity.
Biochemistry 2007;46(44):12795-809.
2007: Adrijana Leonardi; Jay W Fox; Alenka Trampus-Bakija; Igor Krizaj
Ammodytase, a metalloprotease from Vipera ammodytes ammodytes venom, possesses strong fibrinolytic activity.
Toxicon : official journal of the International Society on Toxinology 2007;49(6):833-42.
2006: Petra Prijatelj; Nina Vardjan; Edward G Rowan; Igor Krizaj; Joze Pungercar
Binding to the high-affinity M-type receptor for secreted phospholipases A(2) is not obligatory for the presynaptic neurotoxicity of ammodytoxin A.
Biochimie 2006;88(10):1425-33.
2006: Ljubinka Vitale; Bojana Vukelić; Igor Krizaj
Extracellular metalloendopeptidase of Streptomyces rimosus.
Archives of microbiology 2006;185(3):183-91.
2006: Petra Prijatelj; Marlène Charnay; Gabriela Ivanovski; Zala Jenko; Joze Pungercar; Igor Krizaj; Grazyna FAURE
The C-terminal and beta-wing regions of ammodytoxin A, a neurotoxic phospholipase A2 from Vipera ammodytes ammodytes, are critical for binding to factor Xa and for anticoagulant effect.
Biochimie 2006;88(1):69-76.
2005: Uros Petrovic; Jernej Sribar; Maja Matis; Gregor Anderluh; Jasna Peter-Katalinić; Igor Krizaj; Franc Gubensek
Ammodytoxin, a secretory phospholipase A2, inhibits G2 cell-cycle arrest in the yeast Saccharomyces cerevisiae.
The Biochemical journal 2005;391(Pt 2):383-8.
2005: Bozo Kralj; Igor Krizaj; Peter Bukovec; Simon Slejko; Radmila Milacic
Speciation of aluminium in tea infusions by use of SEC and FPLC with ICP-OES and ES-MS-MS detection.
Analytical and bioanalytical chemistry 2005;383(3):467-75.
2005: Toni Petan; Igor Krizaj; Michael H Gelb; Joze Pungercar
Ammodytoxins, potent presynaptic neurotoxins, are also highly efficient phospholipase A2 enzymes.
Biochemistry 2005;44(37):12535-45.
2005: Helena Gradisar; Jozica Friedrich; Igor Krizaj; Roman Jerala
Similarities and specificities of fungal keratinolytic proteases: comparison of keratinases of Paecilomyces marquandii and Doratomyces microsporus to some known proteases.
Applied and environmental microbiology 2005;71(7):3420-6.
2005: Jernej Sribar; Gregor Anderluh; Jay W Fox; Igor Krizaj
Protein disulphide isomerase binds ammodytoxin strongly: possible implications for toxin trafficking.
Biochemical and biophysical research communications 2005;329(2):733-7.
2004: Uros Petrovic; Jernej Sribar; Alenka Paris; Marjan Rupnik; Mojca Krzan; Nina Vardjan; Franc Gubensek; Robert Zorec; Igor Krizaj
Ammodytoxin, a neurotoxic secreted phospholipase A(2), can act in the cytosol of the nerve cell.
Biochemical and biophysical research communications 2004;324(3):981-5.
2004: Gabriela Ivanovski; Toni Petan; Igor Krizaj; Michael H Gelb; Franc Gubensek; Joze Pungercar
Basic amino acid residues in the beta-structure region contribute, but not critically, to presynaptic neurotoxicity of ammodytoxin A.
Biochimica et biophysica acta 2004;1702(2):217-25.
2004: Sasa Cucnik; Tanja Kveder; Igor Krizaj; Blaz Rozman; Borut Bozic
High avidity anti-beta 2-glycoprotein I antibodies in patients with antiphospholipid syndrome.
Annals of the rheumatic diseases 2004;63(11):1478-82.
2004: Sasa Cucnik; Igor Krizaj; Blaz Rozman; Tanja Kveder; Borut Bozic
Concomitant isolation of protein C inhibitor and unnicked beta2-glycoprotein I.
Clinical chemistry and laboratory medicine : CCLM / FESCC 2004;42(2):171-4.
2003: Pika Mesko Brguljan; Vito Turk; Cimerman Nina; Joze Brzin; Igor Krizaj; Tatjana Popovic
Human brain cathepsin H as a neuropeptide and bradykinin metabolizing enzyme.
Peptides 2003;24(12):1977-84.
2003: Jernej Sribar; Alenka Copic; Mateja Poljsak-Prijatelj; Jost Kuret; Uros Logonder; Franc Gubensek; Igor Krizaj
R25 is an intracellular membrane receptor for a snake venom secretory phospholipase A(2).
FEBS letters 2003;553(3):309-14.
2003: Petra Prijatelj; Jernej Sribar; Gabriela Ivanovski; Igor Krizaj; Franc Gubensek; Joze Pungercar
Identification of a novel binding site for calmodulin in ammodytoxin A, a neurotoxic group IIA phospholipase A2.
European journal of biochemistry / FEBS 2003;270(14):3018-25.
2003: Jernej Sribar; Nicholas E Sherman; Petra Prijatelj; Grazyna FAURE; Franc Gubensek; Jay W Fox; Alastair Aitken; Joze Pungercar; Igor Krizaj
The neurotoxic phospholipase A2 associates, through a non-phosphorylated binding motif, with 14-3-3 protein gamma and epsilon isoforms.
Biochemical and biophysical research communications 2003;302(4):691-6.
2003: Grazyna FAURE; Alenka Copic; Sabine Le Porrier; Franc Gubensek; Cassian Bon; Igor Krizaj
Crotoxin acceptor protein isolated from Torpedo electric organ: binding properties to crotoxin by surface plasmon resonance.
Toxicon : official journal of the International Society on Toxinology 2003;41(4):509-17.
2003: Sabina Berne; Kristina Sepcić; Igor Krizaj; William R Kem; James B McClintock; Tom Turk
Isolation and characterisation of a cytolytic protein from mucus secretions of the Antarctic heteronemertine Parborlasia corrugatus.
Toxicon : official journal of the International Society on Toxinology 2003;41(4):483-91.
2003: Janez Scancar; Radmila Milacic; M Benedik; Igor Krizaj
Total metal concentrations in serum of dialysis patients and fractionation of Cu, Rb, Al, Fe and Zn in spent continuous ambulatory peritoneal dialysis fluids.
Talanta 2003;59(2):355-64.
2003: Kristina Gruden; Tatjana Popovic; Nina Cimerman; Igor Krizaj; Borut Strukelj
Diverse enzymatic specificities of digestive proteases, 'intestains', enable Colorado potato beetle larvae to counteract the potato defence mechanism.
Biological chemistry 2003;384(2):305-10.
2002: Petra Prijatelj; Igor Krizaj; Bozo Kralj; Franc Gubensek; Joze Pungercar
The C-terminal region of ammodytoxins is important but not sufficient for neurotoxicity.
European journal of biochemistry / FEBS 2002;269(23):5759-64.
2002: Sabina Berne; Igor Krizaj; Franc Pohleven; Tom Turk; Peter Maček; Kristina Sepcić
Pleurotus and Agrocybe hemolysins, new proteins hypothetically involved in fungal fruiting.
Biochimica et biophysica acta 2002;1570(3):153-9.
2002: Toni Petan; Igor Krizaj; Franc Gubensek; Joze Pungercar
Phenylalanine-24 in the N-terminal region of ammodytoxins is important for both enzymic activity and presynaptic toxicity.
The Biochemical journal 2002;363(Pt 2):353-8.
2002: Adrijana Leonardi; Franc Gubensek; Igor Krizaj
Purification and characterisation of two hemorrhagic metalloproteinases from the venom of the long-nosed viper, Vipera ammodytes ammodytes.
Toxicon : official journal of the International Society on Toxinology 2002;40(1):55-62.
2001: Nina Vardjan; Nicholas E Sherman; Joze Pungercar; Jay W Fox; Franc Gubensek; Igor Krizaj
High-molecular-mass receptors for ammodytoxin in pig are tissue-specific isoforms of M-type phospholipase A(2) receptor.
Biochemical and biophysical research communications 2001;289(1):143-9.
2001: Jernej Sribar; Alenka Copic; A Paris; Nicholas E Sherman; Franc Gubensek; Jay W Fox; Igor Krizaj
A high affinity acceptor for phospholipase A2 with neurotoxic activity is a calmodulin.
The Journal of biological chemistry 2001;276(16):12493-6.
2001: A Francky; B M Francky; Borut Strukelj; Kristina Gruden; A Ritonja; Igor Krizaj; I Kregar; Roger H Pain; Joze Pungercar
A basic residue at position 36p of the propeptide is not essential for the correct folding and subsequent autocatalytic activation of prochymosin.
European journal of biochemistry / FEBS 2001;268(8):2362-8.
2000: Petra Prijatelj; Alenka Copic; Igor Krizaj; Franc Gubensek; Joze Pungercar
Charge reversal of ammodytoxin A, a phospholipase A2-toxin, does not abolish its neurotoxicity.
The Biochemical journal 2000;352 Pt 2():251-5.
2000: Gabriela Ivanovski; Alenka Copic; Igor Krizaj; Franc Gubensek; Joze Pungercar
The amino acid region 115-119 of ammodytoxins plays an important role in neurotoxicity.
Biochemical and biophysical research communications 2000;276(3):1229-34.
2000: Igor Krizaj; Franc Gubensek
Neuronal receptors for phospholipases A(2 )and beta-neurotoxicity.
Biochimie 2000;82(9-10):807-14.
2000: I Klemencic; Adriana K Carmona; Maria Helena S Cezari; Maria A Juliano; Luiz Juliano; Gregor Guncar; Dusan Turk; Igor Krizaj; Vito Turk; Boris Turk
Biochemical characterization of human cathepsin X revealed that the enzyme is an exopeptidase, acting as carboxymonopeptidase or carboxydipeptidase.
European journal of biochemistry / FEBS 2000;267(17):5404-12.
2000: Robert Frangez; Igor Krizaj; Franc Gubensek; Dusan Suput
Effects of ammodytin L on miniature and endplate potentials in neuromuscular junction of frog m. cutaneus pectoris.
Pflügers Archiv : European journal of physiology 2000;440(5 Suppl):R101-2.
2000: Joze Pungercar; A Viyjak; Gabriela Ivanovski; Igor Krizaj
Tissue expression and immunolocalization of a novel human cathepsin P.
Pflügers Archiv : European journal of physiology 2000;439(3 Suppl):R119-21.
1999: Gregor Anderluh; Igor Krizaj; Borut Strukelj; Franc Gubensek; Peter Maček; Joze Pungercar
Equinatoxins, pore-forming proteins from the sea anemone Actinia equina, belong to a multigene family.
Toxicon : official journal of the International Society on Toxinology 1999;37(10):1391-401.
1999: Alenka Copic; N Vucemilo; Franc Gubensek; Igor Krizaj
Identification and purification of a novel receptor for secretory phospholipase A(2) in porcine cerebral cortex.
The Journal of biological chemistry 1999;274(37):26315-20.
1999: Adrijana Leonardi; F Aragon-Ortiz; Franc Gubensek; Igor Krizaj
Partial primary structure of a fibrinogenase from the venom of the snake Lachesis stenophrys.
Journal of chromatography. A 1999;852(1):237-43.
1999: Joze Pungercar; Igor Krizaj; N S Liang; Franc Gubensek
An aromatic, but not a basic, residue is involved in the toxicity of group-II phospholipase A2 neurotoxins.
The Biochemical journal 1999;341 ( Pt 1)():139-45.
1999: Boris Turk; Iztok Dolenc; Brigita Lenarcic; Igor Krizaj; Vito Turk; J G Bieth; Ingemar Björk
Acidic pH as a physiological regulator of human cathepsin L activity.
European journal of biochemistry / FEBS 1999;259(3):926-32.
1998: N Vucemilo; Alenka Copic; Franc Gubensek; Igor Krizaj
Identification of a new high-affinity binding protein for neurotoxic phospholipases A2.
Biochemical and biophysical research communications 1998;251(1):209-12.
1998: Joze Pungercar; N Vucemilo; Grazyna FAURE; Cassian Bon; H M Verheij; Franc Gubensek; Igor Krizaj
Ammodytin L, an inactive phospholipase A2 homologue with myotoxicity in mice, binds to the presynaptic acceptor of the beta-neurotoxic ammodytoxin C in Torpedo: an indication for a phospholipase A2 activity-independent mechanism of action of beta-neurotoxins in fish?
Biochemical and biophysical research communications 1998;244(2):514-8.
1998: B Cigić; Igor Krizaj; Bozo Kralj; Vito Turk; Roger H Pain
Stoichiometry and heterogeneity of the pro-region chain in tetrameric human cathepsin C.
Biochimica et biophysica acta 1998;1382(1):143-50.
1998: Gregor Anderluh; Ariana Barlic; Igor Krizaj; Gianfranco Menestrina; F Gubensĕk; Peter Maček
Avidin-FITC topological studies with three cysteine mutants of equinatoxin II, a sea anemone pore-forming protein.
Biochemical and biophysical research communications 1998;242(1):187-90.
1997: Gregor Anderluh; Joze Pungercar; Igor Krizaj; Borut Strukelj; Franc Gubensek; Peter Maček
N-terminal truncation mutagenesis of equinatoxin II, a pore-forming protein from the sea anemone Actinia equina.
Protein engineering 1997;10(7):751-5.
1997: Igor Krizaj; Grazyna FAURE; Franc Gubensek; Cassian Bon
Neurotoxic phospholipases A2 ammodytoxin and crotoxin bind to distinct high-affinity protein acceptors in Torpedo marmorata electric organ.
Biochemistry 1997;36(10):2779-87.
1996: Brigita Lenarcic; Igor Krizaj; P Zunec; V Turk
Differences in specificity for the interactions of stefins A, B and D with cysteine proteinases.
FEBS letters 1996;395(2-3):113-8.
1996: Igor Krizaj; A Bdolah; Franc Gubensek; P Bencina; Joze Pungercar
Protein and cDNA structures of an acidic phospholipase A2, the enzymatic part of an unusual, two-component toxin from Vipera palaestinae.
Biochemical and biophysical research communications 1996;227(2):374-9.
1996: Igor Krizaj; G Faure; Franc Gubensek; Cassian Bon
Re-examination of crotoxin-membrane interactions.
Toxicon : official journal of the International Society on Toxinology 1996;34(9):1003-9.
1995: Igor Krizaj; E G Rowan; Franc Gubensek
Ammodytoxin A acceptor in bovine brain synaptic membranes.
Toxicon : official journal of the International Society on Toxinology 1995;33(4):437-49.
1994: Igor Krizaj; J O Dolly; Franc Gubensek
Identification of the neuronal acceptor in bovine cortex for ammodytoxin C, a presynaptically neurotoxic phospholipase A2.
Biochemistry 1994;33(46):13938-45.
1994: G Belmonte; Gianfranco Menestrina; C Pederzolli; Igor Krizaj; Franc Gubensek; Tom Turk; Peter Maček
Primary and secondary structure of a pore-forming toxin from the sea anemone, Actinia equina L., and its association with lipid vesicles.
Biochimica et biophysica acta 1994;1192(2):197-204.
1994: Franc Gubensek; N S Liang; Joze Pungercar; Borut Strukelj; V Curin-Serbec; Igor Krizaj
Presynaptically acting phospholipase A2 from Vipera ammodytes venom.
Annals of the New York Academy of Sciences 1994;710():120-5.
1993: N S Liang; Joze Pungercar; Igor Krizaj; Borut Strukelj; Franc Gubensek
Expression of fully active ammodytoxin A, a potent presynaptically neurotoxic phospholipase A2, in Escherichia coli.
FEBS letters 1993;334(1):55-9.
1993: Igor Krizaj; M Drobnic-Kosorok; Joze Brzin; Roman Jerala; V Turk
The primary structure of inhibitor of cysteine proteinases from potato.
FEBS letters 1993;333(1-2):15-20.
1993: Natasa Kopitar-Jerala; V Curin-Serbec; Roman Jerala; Igor Krizaj; Franc Gubensek; V Turk
Monoclonal antibodies to human stefin B and determination of their epitopes.
Biochimica et biophysica acta 1993;1164(1):75-80.
1993: Igor Krizaj; Jüri Siigur; Mari Samel; V Cotic; Franc Gubensek
Isolation, partial characterization and complete amino acid sequence of the toxic phospholipase A2 from the venom of the common viper, Vipera berus berus.
Biochimica et biophysica acta 1993;1157(1):81-5.
1993: Boris Turk; Igor Krizaj; B Kralj; Iztok Dolenc; Tatjana Popovic; Joseph G Bieth; V Turk
Bovine stefin C, a new member of the stefin family.
The Journal of biological chemistry 1993;268(10):7323-9.
1993: K Drobnic; Igor Krizaj; Franc Gubensek; Radovan Komel
Improved purification of steroid 1:2-dehydrogenase from Nocardia opaca and partial characterization of its cloned gene sequence.
Biochemical and biophysical research communications 1993;190(2):509-15.
1992: Boris Turk; Igor Krizaj; V Turk
Isolation and characterization of bovine stefin B.
Biological chemistry Hoppe-Seyler 1992;373(7):441-6.
1992: Igor Krizaj; N S Liang; Joze Pungercar; Borut Strukelj; A Ritonja; Franc Gubensek
Amino acid and cDNA sequences of a neutral phospholipase A2 from the long-nosed viper (Vipera ammodytes ammodytes) venom.
European journal of biochemistry / FEBS 1992;204(3):1057-62.
1992: Igor Krizaj; Boris Turk; V Turk
The complete primary structure of bovine stefin B.
FEBS letters 1992;298(2-3):237-9.
1991: Igor Krizaj; A L Bieber; A Ritonja; Franc Gubensek
The primary structure of ammodytin L, a myotoxic phospholipase A2 homologue from Vipera ammodytes venom.
European journal of biochemistry / FEBS 1991;202(3):1165-8.
1990: Borut Strukelj; Joze Pungercar; A Ritonja; Igor Krizaj; Franc Gubensek; I Kregar; V Turk
Nucleotide and deduced amino acid sequence of an aspartic proteinase inhibitor homologue from potato tubers (Solanum tuberosum L.).
Nucleic acids research 1990;18(15):4605.
1990: A Ritonja; Igor Krizaj; P Mesko; M Kopitar; P Lucovnik; Borut Strukelj; Joze Pungercar; David J Buttle; A J Barrett; V Turk
The amino acid sequence of a novel inhibitor of cathepsin D from potato.
FEBS letters 1990;267(1):13-5.
1989: Igor Krizaj; Dusan Turk; A Ritonja; Franc Gubensek
Primary structure of ammodytoxin C further reveals the toxic site of ammodytoxin.
Biochimica et biophysica acta 1989;999(2):198-202.
1989: M Kopitar; A Ritonja; Tatjana Popovic; D Gabrijelcic; Igor Krizaj; V Turk
A new type of low-molecular mass cysteine proteinase inhibitor from pig leukocytes.
Biological chemistry Hoppe-Seyler 1989;370(10):1145-51.
1988: Brigita Lenarcic; Janko Kos; Iztok Dolenc; P Lucovnik; Igor Krizaj; V Turk
Cathepsin D inactivates cysteine proteinase inhibitors, cystatins.
Biochemical and biophysical research communications 1988;154(2):765-72.