ライフサイエンスコーパス: magnetosome

1 pronounced uniaxial anisotropy field in each magnetosome.

2 assemblies of magnetic nanoparticles called magnetosomes.

3 to the intrinsic magnetic properties of the magnetosomes.

4 domain crystals which are incorporated into magnetosomes.

5 magnetic iron-rich mineral particles called magnetosomes.

6 ganization of subcellular organelles, termed magnetosomes.

7 s build-up of cytoskeletal filaments between magnetosomes.

8 their surrounding membranes are referred to magnetosomes.

9 bacteria, to combine their magnetic moments, magnetosomes align along filaments formed by a bacterial

10 ons between MamK and MamK-like contribute to magnetosome alignment in AMB-1.

11 These magnetosomes allow magneto-aerotaxis, which is the motio

12 The crystalline habit and composition of all magnetosomes analyzed with high-resolution transmission

13 membrane-bound intracellular iron crystals (magnetosomes) and respond to magnetic fields.

14 new insight into the biogenesis of bacterial magnetosomes, and links these organelles to a newly reco

15 opment of bioprocesses for the production of magnetosomes, and will increase understanding of this fa

16 ting in magnetosome formation and shows that magnetosomes are assembled in a step-wise manner in whic

17 EDS mapping showed that magnetosomes are enmeshed in a magnetosomal matrix in wh

18 Bacterial magnetosomes are intracellular compartments that house h

19 Using electron cryotomography, we found that magnetosomes are invaginations of the cell membrane flan

20 Magnetosomes are magnetite nanoparticles formed by biomi

21 Magnetosomes are membranous bacterial organelles sharing

22 spectroscopy studies reveal that full-sized magnetosomes are seen 15 min after formation is initiate

23 These magnetosomes are typically arranged in chains, but other

24 this way, we quantitatively characterize the magnetosome arrangement in both wild-type cells and Delt

25 can be retrieved in addition to the average magnetosome arrangement.

26 In a mamK deletion strain, the magnetosome-associated cytoskeleton was absent and indiv

27 ach to find that MamE, and another predicted magnetosome-associated protease, MamO, likely function a

28 The magnetosome-associated protein, MamA, is required for th

29 of its conserved core are not essential for magnetosome biogenesis and that nonconserved genes are i

30 Bacterial magnetosomes (BMs) are a type of biogenic magnetic nanom

31 e the roles of the proteins MamJ and MamK in magnetosome chain formation.

32 standing is the detailed knowledge about the magnetosome chain within the bacteria.

33 LimJ leads to static filaments, a disrupted magnetosome chain, and an anomalous build-up of cytoskel

34 as well as nano-sized magnetotactic bacteria magnetosome chains, have been reported in clay-rich sedi

35 We use the magnetosome compartments of magnetotactic bacteria as a

36 Of the two nanocrystal (magnetosome) compositions biosynthesized by magnetotacti

37 These immature magnetosomes contain a surface layer of the nonmagnetic

38 reason for the persistency of bullet-shaped magnetosomes during the evolutionary development of magn

39 The magnetotactic cocci contained magnetosomes either arranged as two or four chains or as

40 me island (MAI) is known to be essential for magnetosome formation and contains most of the genes pre

41 in understanding the molecular mechanisms of magnetosome formation and magnetite biomineralization.

42 f more than a dozen factors participating in magnetosome formation and shows that magnetosomes are as

43 MamK and numerous other magnetosome formation factors are encoded by a genetic i

44 Instead, MamO promotes magnetosome formation through two genetically distinct,

45 island (MAI) is essential for every step of magnetosome formation.

46 s most of the genes previously implicated in magnetosome formation.

47 umerous genetic and proteomic studies of the magnetosome-formation process, there have been only limi

48 atrix in which iron accumulates close to the magnetosome forming a continuous layer visually appearin

49 illum magneticum sp. AMB-1, and other MTB, a magnetosome gene island (MAI) is essential for every ste

50 formed intracellularly within the so-called magnetosomes has remained a matter of debate.

51 (MTB), the magnetic properties of magnetite magnetosomes have been extensively studied using widely

52 In addition, magnetosomes have served as a powerful model system for

53 Alignment of magnetosomes in chains is perhaps the most distinctive o

54 s can be used to locate and characterize the magnetosomes in each bacterium.

55 ryotic cytoskeletal filament which organizes magnetosomes into a sensory structure capable of alignin

56 They biomineralize magnetosomes, intracellular membrane-coated magnetic nan

57 The magnetosome is an invagination of the cell membrane that

58 A well-conserved region called the magnetosome island (MAI) is known to be essential for ma

59 mes of the Magnetospirillum magneticum AMB-1 magnetosome island, MamP and MamT, are essential to thei

60 s are encoded by a genetic island termed the magnetosome island.

61 magnetosome-related genes that was named the magnetosome islet.

62 a diverse group of bacteria that synthesise magnetosomes, magnetic membrane-bound nanoparticles that

63 Magnetosome magnetite crystals nucleate and grow using i

64 s complicating the use of FMR for fossilized magnetosome (magnetofossil) detection.

65 Here we report the examination of the magnetosome material throughout the formation process in

66 ne cluster encodes for factors important for magnetosome membrane biogenesis, for targeting of protei

67 contrast, MmsF, a previously uncharacterized magnetosome membrane protein encoded within the same reg

68 regulator protein of nanoparticle formation, magnetosome membrane specific F (MmsF), was recently dis

69 resent close to and inside the lipid bilayer magnetosome membrane.

70 Magnetotactic bacteria (MTB) use magnetosomes, membrane-bound crystals of magnetite or gr

71 required for the subcellular organization of magnetosomes, membrane-bound organelles that aid in navi

72 irillum magneticum str AMB-1 is able to form magnetosome membranes but not magnetite crystals, a defe

73 unique feat is accomplished with the help of magnetosomes, nanometer-sized magnetic crystals surround

74 teria are characterized by the production of magnetosomes, nanoscale particles of lipid bilayer encap

75 rric (oxyhydr)oxide intermediates within the magnetosome organelle.

76 sufficient for the formation of an immature magnetosome organelle.

77 otactic bacteria, is important in organizing magnetosome organelles into chains that are used for nav

78 d DeltamamJ mutants, which exhibit differing magnetosome organization.

79 Together, these results suggest that the magnetosome precisely coordinates magnetite biomineraliz

80 created by chains of magnetic nanoparticles (magnetosomes) produced in the bacteria.

81 protein with a protease-independent role in magnetosome protein localization and a protease-dependen

82 ep-wise manner in which membrane biogenesis, magnetosome protein localization, and biomineralization

83 previously linked to the mislocalization of magnetosome proteins.

84 For single biologically synthesized magnetosomes (radius rmag approximately 10(-7) m, magnet

85 um AMB-1 (AMB-1) contains a second island of magnetosome-related genes that was named the magnetosome

86 available cultures, while those of greigite magnetosomes remain poorly known.

87 e enclosed by membrane invaginations to form magnetosomes so they are able to sense and act upon Eart

88 e reconciled with the recognition that chain magnetosomes tend to be preferentially extracted in the

89 Magnetotactic bacteria contain chains of magnetosomes that comprise a permanent magnetic dipole i

90 esent in a unique lipid-bound organelle (the magnetosome) that functions as a nanosized reactor in wh

91 is required for the formation of functional magnetosome vesicles and displays a dynamic subcellular

92 um sp. AMB-1 as a model system, we show that magnetosome vesicles exist in the absence of magnetite,

93 iated cytoskeleton was absent and individual magnetosomes were no longer organized into chains.

94 n a membrane-encapsulated vesicle termed the magnetosome, which serves as a specialized compartment t

95 tre-sized, membrane-bound organelles, called magnetosomes, which are tasked with the biomineralizatio

96 n microscopy experiments, both accessing the magnetosomes within intact magnetotactic bacteria and co

97 e images, we can clearly identify individual magnetosomes within their chains.