Abstract: Producing an isoprenoid compound by: 1) culturing an isoprenoid compound-forming microorganism in the presence of a growth promoting agent at a sufficient concentration to grow the isoprenoid compound-forming microorganism; 2) decreasing a concentration of the growth promoting agent to induce formation of the isoprenoid compound by the isoprenoid compound-forming microorganism; and 3) culturing the isoprenoid compound-forming microorganism to form the isoprenoid compound, is characterized in that the growth phase of the isoprenoid compound-forming microorganism is separated from the formation phase of the isoprenoid compound.

Abstract: The present invention provides a composition containing linalool, wherein the composition contains a high amount of either enantiomer R-linalool or S-linalool, and has a high content rate of linalool. The present invention also provides a production method for producing the composition. The present invention further provides a composition containing volatile components including linalool, in which a content of linalool in a total content of the volatile components in the composition is 60% or more, and the linalool is present as R-linalool or S-linalool in an amount of 50% or more of the enantiomer, and a production method therefor.

Abstract: The present invention describes an efficient method for producing linalool. The present invention provides a method for producing linalool, the method including culturing a microorganism expressing linalool synthase in a culture medium to produce linalool. The present invention also describes a microorganism able to express linalool synthase and efficiently produce linalool.

Abstract: A host cell includes a heterogeneous expression unit including: (a) a polynucleotide encoding a mevalonate kinase derived from a microorganism belonging to a genus selected from Methanocella, Corynebacterium, Methanosaeta, and Nitrosopumilus, and (b) a promoter operatively linked to the polynucleotide. The host cell is used to produce mevalonate kinase, mevalonate-5-phosphate, and isoprenoid compounds.

Abstract: Methods include contacting a fermented gas including isoprene with a porous adsorbent and desorbing isoprene adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprene.

Abstract: Methods include contacting a fermented gas including isoprenoid compound with a porous adsorbent and desorbing isoprenoid compound adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprenoid compound.

Abstract: The present invention provides a composition containing linalool, wherein the composition contains a high amount of either enantiomer R-linalool or S-linalool, and has a high content rate of linalool. The present invention also provides a production method for producing the composition. The present invention further provides a composition containing volatile components including linalool, in which a content of linalool in a total content of the volatile components in the composition is 60% or more, and the linalool is present as R-linalool or S-linalool in an amount of 50% or more of the enantiomer, and a production method therefor.

Abstract: A method for producing polyisoprene comprising: polymerizing isoprene by using an isoprene-containing composition containing isoprene and an oxygen-containing neutral compound, and a polymerization catalyst composition containing a rare earth element compound and an organometallic compound, wherein: —a compounding amount of the organometallic compound is 0.6 to 3.0 parts by mass per 100 parts by mass of the isoprene-containing composition.

Abstract: The present invention describes an efficient method for producing linalool. The present invention provides a method for producing linalool, the method including culturing a microorganism expressing linalool synthase in a culture medium to produce linalool. The present invention also describes a microorganism able to express linalool synthase and efficiently produce linalool.

Abstract: Producing an isoprenoid compound by: 1) culturing an isoprenoid compound-forming microorganism in the presence of a growth promoting agent at a sufficient concentration to grow the isoprenoid compound-forming microorganism; 2) decreasing a concentration of the growth promoting agent to induce formation of the isoprenoid compound by the isoprenoid compound-forming microorganism; and 3) culturing the isoprenoid compound-forming microorganism to form the isoprenoid compound, is characterized in that the growth phase of the isoprenoid compound-forming microorganism is separated from the formation phase of the isoprenoid compound.

Abstract: Methods include contacting a fermented gas including isoprene with a porous adsorbent and desorbing isoprene adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprene.

Abstract: Methods include contacting a fermented gas including isoprenoid compound with a porous adsorbent and desorbing isoprenoid compound adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprenoid compound.

Abstract: A host cell includes a heterogeneous expression unit including: (a) a polynucleotide encoding a mevalonate kinase derived from a microorganism belonging to a genus selected from Methanocella, Corynebacterium, Methanosaeta, and Nitrosopumilus, and (b) a promoter operatively linked to the polynucleotide. The host cell is used to produce mevalonate kinase, mevalonate-5-phosphate, and isoprenoid compounds.

Abstract: The present invention provides means useful for establishing an excellent isoprene monomer production system. Specifically, the present invention provides a polynucleotide of the following (a), (b), or (c): (a) a polynucleotide comprising (i) the nucleotide sequence represented by SEQ ID NO:1, or (ii) the nucleotide sequence consisting of the nucleotide residues at positions 133 to 1785 in the nucleotide sequence represented by SEQ ID NO:1; (b) a polynucleotide that comprises a nucleotide sequence having 90% or more identity to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; or (c) a polynucleotide that hybridizes under a stringent condition with a polynucleotide consisting of a nucleotide sequence complementary to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; and the like.

Abstract: The power tool has a power transmitting mechanism. When a tool bit is not pressed against a workpiece, the power transmitting mechanism is held in a power transmission interrupted state, and when the tool bit is pressed against the workpiece, the power transmitting mechanism is held in a power transmission state in which the tool bit moves together with the driven-side member in an axial direction of the tool bit so that the driving-side member receives the torque from the driven-side member and the tool bit is driven. Tapered portions are provided between the driving-side member and the driven-side member and inclined with respect to the axial direction of the tool bit. When the driven-side member moves in the axial direction of the tool bit, frictional force is caused on the tapered portions and the torque of the driving-side member is transmitted to the driven-side member by the frictional force.

Abstract: The present invention provides means useful for establishing an excellent isoprene monomer production system. Specifically, the present invention provides a polynucleotide of the following (a), (b), or (c): (a) a polynucleotide comprising (i) the nucleotide sequence represented by SEQ ID NO:1, or (ii) the nucleotide sequence consisting of the nucleotide residues at positions 133 to 1785 in the nucleotide sequence represented by SEQ ID NO:1; (b) a polynucleotide that comprises a nucleotide sequence having 90% or more identity to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; or (c) a polynucleotide that hybridizes under a stringent condition with a polynucleotide consisting of a nucleotide sequence complementary to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; and the like.

Abstract: A method for improving the thermostability of a protein includes introducing, into the protein, two or more amino acid substitutions selected from the group consisting of: (i) substitution of an arginine residue for a lysine residue, (ii) substitution of a threonine residue for a serine residue, and (iii) substitution of an alanine residue for a serine residue.

Abstract: The present invention relates to a method for modifying a property of a protein. The present invention also relates to a method for producing a protein which has a modified property, and a method for producing a microorganism which has a modified property. The present invention is useful in the field of microbial industrial production and the like.

Abstract: The power tool has a power transmitting mechanism. When a tool bit is not pressed against a workpiece, the power transmitting mechanism is held in a power transmission interrupted state, and when the tool bit is pressed against the workpiece, the power transmitting mechanism is held in a power transmission state in which the tool bit moves together with the driven-side member in an axial direction of the tool bit so that the driving-side member receives the torque from the driven-side member and the tool bit is driven. Tapered portions are provided between the driving-side member and the driven-side member and inclined with respect to the axial direction of the tool bit. When the driven-side member moves in the axial direction of the tool bit, frictional force is caused on the tapered portions and the torque of the driving-side member is transmitted to the driven-side member by the frictional force.

Abstract: A property of a protein is modified by the following steps: (a) selecting 1000 or more genes from the genome of a first microorganism, and selecting 1000 or more genes from the genome of a second microorganism, wherein the genes from the first microorganism are orthologs to the genes from the second microorganism, and wherein the second microorganism is closely related to the first microorganism, but grows differently under at least one optimum growth condition when compared with the first microorganism, (b) comparing an amino acid sequence encoded by a gene from the first microorganism to an amino acid sequence encoded by the orthologous gene from the second microorganism, (c) detecting substitutions between the amino acid sequence encoded by a gene from the first microorganism and the amino acid sequence encoded by a gene from the second microorganism for each pair of orthologous genes, (d) compiling the detected amino acid substitutions for each amino acid substitution type, (e) calculating the frequency o