Bacterial Chemotoxis

  1. C. A. Starbird; Thomas M. Tomasiak; Prashant K. Singh; Victoria Yankovskaya; Elena Maklashina; Michael Eisenbach; Gary Cecchini; T. M. Iverson (2018) New crystal forms of the integral membrane Escherichia coli quinol: fumarate reductase suggest that ligands control domain movement. Journal of Structural Biology, 202(1):100-104
  2. Szilvia Baron; Michael Eisenbach (2017) CheY acetylation is required for ordinary adaptation time in Escherichia coli chemotaxis. FEBS Letters, 591(13):1958-1965
  3. Szilvia Baron; Oshri Afanzar; Michael Eisenbach (2017) Methylation-independent adaptation in chemotaxis of Escherichia coli involves acetylation-dependent speed adaptation. FEBS Letters, 591(2):331-337
  4. Elena Maklashina; Sany Rajagukguk; Chrystal A. Starbird; W. Hayes Mcdonald; Anna Koganitsky; Michael Eisenbach; Tina M. Iverson; Gary Cecchini (2016) Binding of the Covalent Flavin Assembly Factor to the Flavoprotein Subunit of Complex II. Journal of Biological Chemistry, 291(6):2904-2916
  5. Milana Fraiberg; Oshri Afanzar; C. Keith Cassidy; Alexandra Gabashvili; Klaus Schulten; Yishai Levin; Michael Eisenbach (2015) CheY's acetylation sites responsible for generating clockwise flagellar rotation in Escherichia coli. Molecular Microbiology, 95(2):231-244
  6. Cerezales, Serafin Perez Cerezales; Sergii Boryshpolets; Oshri Afanzar; Alexander Brandis; Reinat Nevo; Vladimir Kiss; Michael Eisenbach (2015) Involvement of opsinsin mammalian sperm thermotaxis. Scientific Reports, 5:16146-16146
  7. Leah Armon; Ido Ben-Ami; Raphael Ron-El; Michael Eisenbach (2014) Human oocyte-derived sperm chemoattractant is a hydrophobic molecule associated with a carrier protein. Fertility and Sterility, 102(3):885-890
  8. S. Roy Caplan; Gabriel Zarbiv; Hui Li; Amnon Wolf; Gary Cecchini; Victor Sourjik; Michael Eisenbach (2013) Are "Power-Packs" Associated with the Switch-Motor Complex of Bacterial Flagella?. Biophysical Journal, 104(2):641A-641A
  9. Anat Bahat; S. Roy Caplan; Michael Eisenbach (2012) Thermotaxis of Human Sperm Cells in Extraordinarily Shallow Temperature Gradients Over a Wide Range. PLoS One, 7(7):000004458
  10. Gabriel Zarbiv; Hui Li; Amnon Wolf; Gary Cecchini; S. Roy Caplan; Victor Sourjik; Michael Eisenbach (2012) Energy Complexes Are Apparently Associated with the Switch-Motor Complex of Bacterial Flagella. Journal of Molecular Biology, 416(2):192-207
  11. Leah Armon; S. Roy Caplan; Michael Eisenbach; Benjamin M. Friedrich (2012) Testing Human Sperm Chemotaxis: How to Detect Biased Motion in Population Assays. PLoS One, 7(3):000003442
  12. Leah Armon; Michael Eisenbach (2011) Behavioral Mechanism during Human Sperm Chemotaxis: Involvement of Hyperactivation. PLoS One, 6(12):000003443
  13. Orna Liarzi; Rina Barak; Vered Bronner; Monica Dines; Yael Sagi; Alla Shainskaya; Michael Eisenbach (2010) Acetylation represses the binding of CheY to its target proteins. Molecular Microbiology, 76(4):932-943
  14. Anna Gakamsky; Leah Armon; Michael Eisenbach (2009) Behavioral response of human spermatozoa to a concentration jump of chemoattractants or intracellular cyclic nucleotides. Human Reproduction, 24(5):1152-1163
  15. R. Oren-Benaroya; R. Orvieto; A. Gakamsky; M. Pinchasov; Michael Eisenbach (2008) The sperm chemoattractant secreted from human cumulus cells is progesterone. Human Reproduction, 23(10):2339-2345
  16. Anat Bahat; Michael Eisenbach (2008) Human sperm thermotaxis is mediated by phospholipase C and inositol trisphosphate receptor. Biology of Reproduction76-76
  17. Galit N. Cohen-Ben-Lulu; Noreen R. Francis; Eyal Shimoni; Dror Noy; Yaacov Davidov; Krishna Prasad; Yael Sagi; Gary Cecchini; Rose M. Johnstone; Michael Eisenbach (2008) The bacterial flagellar switch complex is getting more complex. EMBO Journal, 27(7):1134-1144
  18. Rony Oren Benaroya; Jonathan Kipnis; Michael Eisenbach (2007) Pragocytosis of human post-capacitated spermatozoa by macrophages. Biology of Reproduction123-123
  19. Michael Eisenbach (2006) Behavioral responses of bacteria to chemostimuli. Chemical Senses, 31(8):E41-E41
  20. I. Tur-Kaspa; L. Goldberg-Bittman; Anat Bahat; Michael Eisenbach (2006) Natural sperm separation technique by thermotaxis for ART. Human Reproduction, 21:I212-I213
  21. F Sun; Anat Bahat; A Gakamsky; E Girsh; Nadav Katz; Lc Giojalas; I Tur-Kaspa; Michael Eisenbach (2005) Human sperm chemotaxis: both the oocyte and its surrounding cumulus cells secrete sperm chemoattractants. Human Reproduction, 20(3):761-767
  22. R Barak; K Prasad; Alla Shainskaya; Aj Wolfe; Michael Eisenbach (2004) Acetylation of the chemicals response regulator CheY by acetyl-CoA synthetase purified from Escherichia coli. Journal of Molecular Biology, 342(2):383-401
  23. Lc Giojalas; Ra Rovasio; G Fabro; A Gakamsky; Michael Eisenbach (2004) Timing of sperm capacitation appears to be programmed according to egg availability in the female genital tract. Fertility and Sterility, 82(1):247-249
  24. Anat Bahat; I Tur-Kaspa; A Gakamsky; Lc Giojalas; H Breitbart; Michael Eisenbach (2003) Thermotaxis of mammalian sperm cells: A potential navigation mechanism in the female genital tract. Nature Medicine, 9(2):149-150
  25. G Fabro; Ra Rovasio; S Civalero; Alona Frenkel; Sr Caplan; Michael Eisenbach; Lc Giojalas (2002) Chemotaxis of capacitated rabbit spermatozoa to follicular fluid revealed by a novel directionality-based assay. Biology of Reproduction, 67(5):1565-1571
  26. Anat Bren; Michael Eisenbach (2001) Changing the direction of flagellar rotation in bacteria by modulating the ratio between the rotational states of the switch protein FliM. Journal of Molecular Biology, 312(4):699-709
  27. R Barak; Michael Eisenbach (1999) Chemotactic-like response of Escherichia coli cells lacking the known chemotaxis machinery but containing overexpressed CheY. Molecular Microbiology, 31(4):1125-1137
  28. Mm McEvoy; Anat Bren; Michael Eisenbach; Fw Dahlquist (1999) Identification of the binding interfaces on CheY for two of its targets, the phosphatase CheZ and the flagellar switch protein FliM. Journal of Molecular Biology, 289(5):1423-1433
  29. Bs Jaiswal; Michael Eisenbach; I Tur-Kaspa (1998) Which inducers and probes should be used for testing partial or complete acrosome reaction in human spermatozoa?. Human Reproduction, 13:75-76
  30. R Barak; Wn Abouhamad; Michael Eisenbach (1998) Both acetate kinase and acetyl coenzyme A synthetase are involved in acetate-stimulated change in the direction of flagellar rotation in Escherichia coli. Journal of Bacteriology, 180(4):985-988
  31. M Montrone; Michael Eisenbach; D Oesterhelt; W Marwan (1998) Regulation of switching frequency and bias of the bacterial flagellar motor by CheY and fumarate. Journal of Bacteriology, 180(13):3375-3380
  32. K Prasad; Sr Caplan; Michael Eisenbach (1998) Fumarate modulates bacterial flagellar rotation by lowering the free energy difference between the clockwise and counterclockwise states of the motor. Journal of Molecular Biology, 280(5):821-828
  33. Bs Jaiswal; A Cohen-Dayag; I Tur-Kaspa; Michael Eisenbach (1998) Sperm capacitation is, after all, a prerequisite for both partial and complete acrosome reaction. FEBS Letters, 427(2):309-313
  34. Y Blat; Michael Eisenbach (1996) Conserved C-terminus of the phosphatase CheZ is a binding domain for the chemotactic response regulator CheY. Biochemistry, 35(18):5679-5683
  35. Y Blat; Michael Eisenbach (1996) Mutants with defective phosphatase activity show no phosphorylation-dependent oligomerization of CheZ - The phosphatase of bacterial chemotaxis. Journal of Biological Chemistry, 271(2):1232-1236
  36. Y Blat; Michael Eisenbach (1996) Oligomerization of the phosphatase CheZ upon interaction with the phosphorylated form of CheY - The signal protein of bacterial chemotaxis. Journal of Biological Chemistry, 271(2):1226-1231
  37. Y Blat; Michael Eisenbach (1995) Tar-Dependent and Tar-Independent Pattern-Formation by Salmonella-Typhimurium. Journal of Bacteriology, 177(7):1683-1691
  38. M Karaivanov; Michael Eisenbach; Sr Caplan (1995) Fluctuations in Rotation Rate of the Flagellar Motor of Escherichia-Coli. Biophysical Journal, 69(1):250-263
  39. Sangeeta Kumari; R Tishel; Michael Eisenbach; Aj Wolfe (1995) Cloning, Characterization, and Functional Expression of Acs, the Gene Which Encodes Acetyl-Coenzyme-a Synthetase in Escherichia-Coli. Journal of Bacteriology, 177(10):2878-2886
  40. A Cohendayag; I Turkaspa; J Dor; S Mashiach; Michael Eisenbach (1995) Sperm capacitation in human is transient and correlates with chemotactic responsiveness. Human Sperm Acrosome Reaction, 236:397-398
  41. A Cohendayag; Michael Eisenbach (1994) Potential Assays For Sperm Capacitation in Mammals. American Journal Of Physiology-Cell Physiology, 267(5):C1167-C1176
  42. A Cohendayag; D Ralt; I Turkaspa; M Manor; A Makler; J Dor; S Mashiach; Michael Eisenbach (1994) Sequential Acquisition of Chemotactic Responsiveness by Human Spermatozoa. Biology of Reproduction, 50(4):786-790
  43. D Ralt; M Manor; A Cohendayag; I Turkaspa; I Benshlomo; A Makler; I Yuli; J Dor; S Blumberg; S Mashiach; Michael Eisenbach (1994) Chemotaxis and Chemokinesis of Human Spermatozoa to Follicular Factors. Biology of Reproduction, 50(4):774-785
  44. Y Margolin; R Barak; Michael Eisenbach (1994) Arsenate Arrests Flagellar Rotation in Cytoplasm-Free Envelopes of Bacteria. Journal of Bacteriology, 176(17):5547-5549
  45. M Welch; K Oosawa; Si Aizawa; Michael Eisenbach (1994) Effects of Phosphorylation, Mg2+, and Conformation of the Chemotaxis Protein CheY on Its Binding to the Flagellar Switch Protein Flim. Biochemistry, 33(34):10470-10476
  46. Michael Eisenbach; I Turkaspa (1994) Human Sperm Chemotaxis is Not Enigmatic Anymore. Fertility and Sterility, 62(2):233-235
  47. Y Blat; Michael Eisenbach (1994) Phosphorylation-Dependent Binding of the Chemotaxis Signal Molecule CheY to Its Phosphatase, Chez. Biochemistry, 33(4):902-906
  48. R Barak; M Welch; A Yanovsky; K Oosawa; Michael Eisenbach (1992) Acetyladenylate or Its Derivative Acetylates the Chemotaxis Protein CheY Invitro and Increases Its Activity at the Flagellar Switch. Biochemistry, 31(41):10099-10107
  49. R Barak; Michael Eisenbach (1992) Correlation Between Phosphorylation of the Chemotaxis Protein-CheY and Its Activity at the Flagellar Motor. Biochemistry, 31(6):1821-1826
  50. R Barak; Michael Eisenbach (1992) Fumarate or a Fumarate Metabolite Restores Switching Ability to Rotating Flagella of Bacterial Envelopes. Journal of Bacteriology, 174(2):643-645
  51. A Rosenbluh; Michael Eisenbach (1992) Effect of Mechanical Removal of Pili on Gliding Motility of Myxococcus-Xanthus. Journal of Bacteriology, 174(16):5406-5413
  52. Michael Eisenbach; D Ralt (1992) Precontact Mammalian Sperm Egg Communication and Role in Fertilization. American Journal of Physiology, 262(5):C1095-C1101
  53. Michael Eisenbach; R Barak; Shachar Ravid (1990) Restoration of Signal Transduction in Bacterial Chemotaxis. Biological Chemistry Hoppe-Seyler, 371(10):898-898
  54. Michael Eisenbach; C Constantinou; H Aloni; M Shinitzky (1990) Repellents For Escherichia-Coli Operate Neither by Changing Membrane Fluidity Nor by Being Sensed by Periplasmic Receptors During Chemotaxis. Journal of Bacteriology, 172(9):5218-5224
  55. Michael Eisenbach; A Wolf; M Welch; Sr Caplan; Ir Lapidus; Rm Macnab; H Aloni; O Asher (1990) Pausing, Switching and Speed Fluctuation of the Bacterial Flagellar Motor and Their Relation to Motility and Chemotaxis. Journal of Molecular Biology, 211(3):551-563
  56. Michael Eisenbach; P Matsumura (1988) Invitro Approach to Bacterial Chemotaxis. Botanica Acta, 101(2):105-110
  57. Ir Lapidus; M Welch; Michael Eisenbach (1988) Pausing of Flagellar Rotation is a Component of Bacterial Motility and Chemotaxis. Journal of Bacteriology, 170(8):3627-3632
  58. Y Margolin; Michael Eisenbach (1984) Voltage Clamp Effects on Bacterial Chemotaxis. Journal of Bacteriology, 159(2):605-610
  59. Michael Eisenbach; Y Margolin; A Ciobotariu; H Rottenberg (1984) Distinction Between Changes in Membrane-Potential and Surface-Charge Upon Chemotactic Stimulation of Escherichia-Coli. Biophysical Journal, 45(2):463-467
  60. Shachar Ravid; Michael Eisenbach (1984) Direction of Flagellar Rotation in Bacterial-Cell Envelopes. Journal of Bacteriology, 158(1):222-230
  61. Shachar Ravid; Michael Eisenbach (1984) Minimal Requirements For Rotation of Bacterial Flagella. Journal of Bacteriology, 158(3):1208-1210
  62. Pi Lelkes; L Klein; Y Marikovsky; Michael Eisenbach (1984) Liposome-Mediated Transfer of Macromolecules Into Flagellated Cell Envelopes from Bacteria. Biochemistry, 23(3):563-568
  63. Michael Eisenbach; Tal Raz; A Ciobotariu (1983) A Process Related to Membrane-Potential Involved in Bacterial Chemotaxis to Galactose. Biochemistry, 22(13):3293-3298
  64. Shachar Ravid; Michael Eisenbach (1983) Correlation Between Bacteriophage-Chi Adsorption and Mode of Flagellar Rotation of Escherichia-Coli Chemotaxis Mutants. Journal of Bacteriology, 154(2):604-611
  65. Shachar Ravid; Michael Eisenbach (1983) Bacteriophage Chi Adsorption and the Mode of Flagellar Rotation in Behavioral Mutants of Escherichia-Coli. Israel Medical Association Journal, 19(7):685-685
  66. Michael Eisenbach; L Klein; Pi Lelkes (1983) Liposome-Mediated Transfer of Macromolecules Into Flagellated Cell Envelopes from Escherichia-Coli. Biophysical Journal, 41(2):A359-A359
  67. A Corcia; Michael Eisenbach; Meir Wilchek; Sr Caplan (1979) Increased Difference in Surface-Charge For Improving the Electrical Orientation of Gel-Entrapped Purple-Membrane Fragments. Israel Medical Association Journal, 15(1):110-110
  68. Haim Garty; David Cahen; Michael Eisenbach; Sr Caplan (1979) Photoacoustic Spectroscopy of the Purple Membrane of Halobacterium-Halobium. Israel Medical Association Journal, 15(1):110-110
  69. Haim Garty; David Cahen; Michael Eisenbach; Sr Caplan (1979) Photoacoustic Spectroscopy of the Purple Membrane of Halobacterium-Halobium. Israel Medical Association Journal, 15(1):110-110
  70. Lea Eisenbach; Michael Eisenbach (1979) Electrophoretic Mobility of Membrane Fragments on a Sucrose Gradient - Application to Isolated Purple Membrane Fragments from Halobacterium-Halobium. Analytical Biochemistry, 92(1):228-232
  71. Michael Eisenbach; Haim Garty; Ep Bakker; G Klemperer; H Rottenberg; Sr Caplan (1978) Kinetic-Analysis of Light-Induced ph Changes in Bacteriorhodopsin-Containing Particles from Halobacterium-Halobium. Biochemistry, 17(22):4691-4698
  72. Michael Eisenbach; C Weissmann; G Tanny; Sr Caplan (1977) Bacteriorhodopsin-Loaded Charged Synthetic Membranes - Utilization of Light Energy to Generate Electrical Current. FEBS Letters, 81(1):77-80
  73. Haim Garty; G Klemperer; Michael Eisenbach; Sr Caplan (1977) Direction of Light-Induced ph Changes in Purple Membrane Suspensions - Influence of ph and Temperature. FEBS Letters, 81(2):238-242
  74. Haim Garty; Michael Eisenbach; H Rottenberg; Sr Caplan (1977) Kinetics of Light-Induced ph Changes in Halobacterium-Halobium Suspensions. Israel Medical Association Journal, 13(9):951-951
  75. S Cooper; Haim Garty; Michael Eisenbach; Rm Johnstone; H Rottenberg; Sr Caplan (1977) Na+-h+ Exchange System in Sub-Bacterial Particles of Halobacterium-Halobium. Israel Medical Association Journal, 13(9):951-952
  76. Michael Eisenbach; Ep Bakker; R Korenstein; Sr Caplan (1976) Bacteriorhodopsin - Biphasic Kinetics of Phototransients and of Light-Induced Proton-Transfer by Sub-Bacterial Halobacterium-Halobium Particles and by Reconstituted Liposomes. FEBS Letters, 71(2):228-232