WO2024214880A1 - Pts 수송체 서브유닛 eiic 신규 변이체 및 이를 이용한 5'-이노신산 생산 방법 - Google Patents
Pts 수송체 서브유닛 eiic 신규 변이체 및 이를 이용한 5'-이노신산 생산 방법 Download PDFInfo
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- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1205—Phosphotransferases with an alcohol group as acceptor (2.7.1), e.g. protein kinases
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- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/74—Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
- C12N15/77—Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora for Corynebacterium; for Brevibacterium
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- C12R2001/15—Corynebacterium
Definitions
- the present invention relates to a novel mutant of PTS transporter subunit EIIC and a method for producing 5'-inosinic acid using the same.
- 5'-inosinic acid (or inosine monophosphate, IMP) is an intermediate in the nucleic acid biosynthesis metabolic chain that not only plays an important physiological role in the bodies of plants and animals, but is also used in various fields such as food, medicine, and various medical purposes.
- IMP inosine monophosphate
- it is one of the nucleic acid seasonings that is gaining attention as a palatable seasoning due to its great taste synergy effect when used with monosodium glutamate (MSG).
- Methods for producing 5'-inosinic acid include a method of enzymatically decomposing ribonucleic acid extracted from yeast cells, a method of chemically phosphorylating inosine produced by fermentation, etc. Recently, a method of culturing a microorganism that produces 5'-inosinic acid and recovering the 5'-inosinic acid accumulated in the medium has been mainly used.
- the present invention aims to provide a novel PTS transporter subunit EIIC variant.
- the present invention aims to provide a polynucleotide encoding the mutant.
- the present invention aims to provide a transformant comprising the mutant or polynucleotide.
- the present invention aims to provide a method for producing 5'-inosinic acid using the transformant.
- PTS transporter subunit EIIC variant consisting of an amino acid sequence of SEQ ID NO: 2, wherein alanine at position 281 in the amino acid sequence of SEQ ID NO: 4 is substituted with valine.
- the “PTS transporter subunit EIIC” used in the present invention is a component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), which is a major carbohydrate active transport system, and catalyzes the phosphorylation of an introduced sugar substrate along with the translocation of the sugar substrate across the cell membrane. It may be a polypeptide or protein composed of an amino acid sequence of SEQ ID NO: 4 and having PTS transporter subunit EIIC activity.
- PTS phosphoenolpyruvate-dependent sugar phosphotransferase system
- Nucleic acid and protein sequence information of the above PTS transporter subunit EIIC can be obtained through known sequence databases (e.g., GenBank, UniProt).
- the PTS transporter subunit EIIC may be encoded by the base sequence of SEQ ID NO: 3.
- the amino acid sequence of the PTS transporter subunit EIIC according to the present invention or the base sequence encoding it may include a base sequence or amino acid sequence having at least 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100% homology or identity compared to each sequence.
- “homology” or “identity” means the rate of correspondence (%) between a reference base sequence or amino acid sequence and any other base sequence or amino acid sequence when they are aligned and analyzed so as to correspond as much as possible.
- the PTS transporter subunit EIIC may be derived from wild type Corynebacterium stationis .
- variant means a variant in which one or more amino acids are conservatively substituted and/or modified at the N-terminus, C-terminus and/or internally of an amino acid sequence due to a change in the base sequence of a gene encoding a protein, so that the amino acid sequence is different from the amino acid sequence before the mutation, but functions or properties are maintained.
- conservative substitution means replacing one amino acid with another amino acid having similar structural and/or chemical properties, and may have little or no effect on the activity of a protein or polypeptide.
- modification means substitution, insertion, deletion, etc. of an amino acid.
- amino acids are selected from alanine (Ala, A), isoleucine (Ile, I), valine (Val, V), leucine (Leu, L), methionine (Met, M), asparagine (Asn, N), cysteine (Cys, C), glutamine (Gln, Q), serine (Ser, S), threonine (Thr, T), phenylalanine (Phe, F), tryptophan (Trp, W), tyrosine (Tyr, Y), aspartic acid (Asp, D), glutamic acid (Glu, E), arginine (Arg, R), histidine (His, H), lysine (Lys, K), glycine (Gly, G), and proline (Pro, P).
- variants include those in which one or more portions, such as the N-terminal leader sequence or the transmembrane domain, are deleted, or portions are deleted from the N- and/or C-terminus of the mature protein.
- Such mutants may have their abilities increased (enhanced), unchanged, or decreased (weakened) compared to the protein before the mutation.
- “increased or strengthened” includes cases where the activity of the protein itself is increased compared to the protein before the mutation, cases where the overall protein activity level in the cell is higher than that of the wild-type strain or the strain expressing the protein before the mutation due to increased expression or increased translation of the gene encoding the protein, and combinations thereof.
- “decreased or weakened” includes cases where the activity of the protein itself is decreased compared to the protein before the mutation, cases where the overall protein activity level in the cell is lower than that of the wild-type strain or the strain expressing the protein before the mutation due to inhibition of expression or inhibition of translation of the gene encoding the protein, and combinations thereof.
- the term “variant” may be used interchangeably with “variant,” “modification,” “mutant polypeptide,” “mutated protein,” “mutant,” etc.
- the PTS transporter subunit EIIC variant according to the present invention may comprise an amino acid sequence having at least 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100% homology or identity compared to the amino acid sequence of SEQ ID NO: 2.
- Another aspect of the present invention provides a polynucleotide encoding the PTS transporter subunit EIIC variant.
- polynucleotide used in the present invention means a polymer of nucleotides in which nucleotide units (monomers) are covalently bonded to form a long chain, a DNA or RNA strand of a certain length or longer, and more specifically, a polynucleotide fragment encoding the variant.
- the polynucleotide may include a base sequence encoding the amino acid sequence of sequence number 2.
- the polynucleotide may include a base sequence of SEQ ID NO: 1, wherein base c at position 842 in the base sequence of SEQ ID NO: 3 encoding the PTS transporter subunit EIIC is substituted with t.
- Another aspect of the present invention provides a vector comprising a polynucleotide encoding the PTS transporter subunit EIIC variant.
- another aspect of the present invention provides a transformant comprising the PTS transporter subunit EIIC mutant or polynucleotide.
- vector refers to any type of nucleic acid sequence carrier structure used as a means for delivering a target gene to a host cell to cause expression. Unless otherwise specified, the vector may mean one that allows the carried nucleic acid sequence to be inserted into the host cell genome and expressed and/or to be expressed independently.
- Such a vector includes essential regulatory elements that are operably linked to allow the gene insert to be expressed, and “operably linked” means that the target gene and its regulatory sequence are functionally linked to each other in a manner that allows gene expression, and “regulatory elements” include a promoter for performing transcription, an optional operator sequence for regulating transcription, a sequence encoding a suitable mRNA ribosome binding site, and a sequence that regulates the termination of transcription and translation.
- the vector used in the present invention is not particularly limited as long as it is replicable in a host cell, and any vector known in the art can be used.
- the vector include plasmids, cosmids, viruses, and bacteriophages in a natural or recombinant state.
- phage vectors or cosmid vectors include pWE15, M13, ⁇ MBL3, ⁇ MBL4, ⁇ IXII, ⁇ ASHII, ⁇ APII, ⁇ t10, ⁇ t11, Charon4A, Charon21A, etc.
- plasmid vectors include, but are not limited to, pBR series, pUC series, pBluescriptII series, pGEM series, pTZ series, pCL series, and pET series.
- the above vector can typically be constructed as a vector for cloning or as a vector for expression.
- the vector for expression can be a conventional one used in the art to express foreign genes or proteins in plants, animals or microorganisms, and can be constructed through various methods known in the art.
- the “recombinant vector” used in the present invention can be replicated independently of the genome of the host cell after being transformed into a suitable host cell, or can be incorporated into the genome itself.
- the “suitable host cell” can include an origin of replication, which is a specific base sequence where replication is initiated as the vector is replicable.
- the vector used is an expression vector and a prokaryotic cell is used as the host, it generally includes a strong promoter capable of promoting transcription (e.g., pL ⁇ promoter, CMV promoter, trp promoter, lac promoter, tac promoter, T7 promoter), a ribosome binding site for initiating translation, and a transcription/translation termination sequence.
- the replication origin operating in a eukaryotic cell included in the vector includes, but is not limited to, the f1 replication origin, the SV40 replication origin, the pMB1 replication origin, the adeno replication origin, the AAV replication origin, and the BBV replication origin.
- a promoter derived from the genome of a mammalian cell e.g., a metallothionein promoter
- a promoter derived from a mammalian virus e.g., the adenovirus late promoter, the vaccinia virus 7.5K promoter, the SV40 promoter, the cytomegalovirus promoter, the tk promoter of HSV
- a promoter derived from the genome of a mammalian cell e.g., a metallothionein promoter
- a promoter derived from a mammalian virus e.g., the adenovirus late promoter, the vaccinia virus 7.5K promoter, the SV40 promoter, the cytomegalovirus promoter, the tk promoter of HSV
- the above recombinant vector may include a selection marker, and the selection marker is used to select transformants (host cells) transformed with the vector. Since only cells expressing the selection marker can survive in a medium treated with the selection marker, selection of transformed cells is possible.
- Representative examples of the selection marker include, but are not limited to, kanamycin, streptomycin, and chloramphenicol.
- a transformant can be created by inserting a recombinant vector into a host cell, and the transformant can be obtained by introducing the recombinant vector into an appropriate host cell.
- Any host cell known in the art can be used as the host cell, as long as it is capable of stably and continuously cloning or expressing the expression vector.
- the host cells that can be used include, but are not limited to, various strains of Escherichia coli such as E. coli DH5 ⁇ , E. coli JM109, E. coli BL21, E. coli RR1, E. coli LE392, E. coli B, E. coli X 1776, E. coli W3110, and E.
- Escherichia coli such as E. coli DH5 ⁇ , E. coli JM109, E. coli BL21, E. coli RR1, E. coli LE392, E. coli B, E. coli X 1776, E. coli W3110, and E.
- Bacillus strains such as Bacillus subtilis and Bacillus thuringiensis
- Corynebacterium strains such as Corynebacterium glutamicum and Corynebacterium stationenis
- various enteric bacteria and strains such as Salmonella typhimurium, Serratia marcescens, and Pseudomonas species.
- yeast e.g., Saccharomyces cerevisiae
- insect cells plant cells
- animal cells such as Sp2/0, CHO K1, CHO DG44, PER.C6, W138, BHK, COS7, 293, HepG2, Huh7, 3T3, RIN, and MDCK cell lines
- Sp2/0 e.g., Saccharomyces cerevisiae
- insect cells plant cells
- animal cells such as Sp2/0, CHO K1, CHO DG44, PER.C6, W138, BHK, COS7, 293, HepG2, Huh7, 3T3, RIN, and MDCK cell lines
- Transformation refers to a phenomenon in which external DNA is introduced into a host cell to artificially cause a genetic change
- transformant refers to a host cell into which external DNA is introduced and which stably maintains the expression of a target gene.
- the above transformation can be performed by selecting a suitable vector introduction technique depending on the host cell, so that the target gene or the recombinant vector containing it can be expressed in the host cell.
- vector introduction can be performed by electroporation, heat-shock, calcium phosphate ( CaPO4 ) precipitation, calcium chloride ( CaCl2 ) precipitation, microinjection, polyethylene glycol (PEG) method, DEAE-dextran method, cationic liposome method, lithium acetate-DMSO method, or a combination thereof, but is not limited thereto.
- the transformed gene can be included without limitation, whether it is inserted into the chromosome of the host cell or located outside the chromosome, as long as it can be expressed in the host cell.
- the above transformant includes a cell transfected, transformed, or infected with a recombinant vector according to the present invention in vivo or in vitro, and may be used as the same term as recombinant host cell, recombinant cell, or recombinant microorganism.
- Genes inserted into the recombinant vector of the present invention can be substituted into a host cell such as a Corynebacterium strain due to homologous recombination crossing over.
- the transformant may be a microorganism of the genus Corynebacterium .
- Corynebacterium genus microorganisms include Corynebacterium glutamicum , Corynebacterium crudilactis, Corynebacterium deserti , Corynebacterium callunae , Corynebacterium suranareeae , Corynebacterium lubricantis, Corynebacterium doosanense , Corynebacterium efficiens , Corynebacterium uterequi , Corynebacterium stationis , Corynebacterium pacaense, Corynebacterium singulare , Corynebacterium humireducens , Corynebacterium marinum , Corynebacterium halotolerans , Corynebacterium spheniscorum , Corynebacterium grisburgense , Corynebacterium striatum , Corynebacterium canis , Corynebacterium ammoniage
- the transformant in the present invention may be, but is not limited to, a strain comprising the above-described PTS transporter subunit EIIC variant or a polynucleotide encoding the same, or a vector comprising the same, a strain expressing the above-described PTS transporter subunit EIIC variant or polynucleotide, or a strain having activity against the above-described PTS transporter subunit EIIC variant.
- the transformant in the present invention may include other protein variants or genetic mutations in addition to the PTS transporter subunit EIIC mutant.
- the transformant may have the ability to produce 5'-inosinic acid.
- the above 5'-inosinic acid is a nucleic acid compound that provides flavor to foods, especially savory taste, and is used with the same meaning as inosine monophosphate (IMP).
- IMP inosine monophosphate
- the above transformant may have a natural ability to produce 5'-inosinic acid, or may have the ability to produce 5'-inosinic acid artificially added.
- the transformant may have an improved 5'-inosinic acid production ability due to a change in the PTS transporter subunit EIIC activity.
- improved productivity means increased productivity of 5'-inosinic acid compared to the parent strain.
- the parent strain refers to a wild type or mutant strain that is the target of mutation, and includes a subject that is directly the target of mutation or transformed with a recombinant vector, etc.
- the parent strain may be a wild type Corynebacterium strain or a Corynebacterium strain that is mutated from the wild type.
- the transformant according to the present invention exhibits increased 5'-inosinic acid production ability compared to the parent strain due to changes in the activity of the PTS transporter subunit EIIC by introducing a PTS transporter subunit EIIC mutant. More specifically, the transformant may have an increase in 5'-inosinic acid production by at least 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or 100% compared to the parent strain, or may have an increase in 5'-inosinic acid production by at least 1.1-fold, 1.5-fold, 2-fold, 2.5-fold, 3-fold, 3.5-fold, 4-fold, 4.5-fold, 5-fold, 5.5-fold, 6-fold, 6.5-fold, 7-fold, 7.5-fold, 8-fold, 8.5-fold, 9-fold, 9.5-fold, or 10-fold, but is not limited thereto.
- a transformant comprising
- Another aspect of the present invention provides a method for producing 5'-inosinic acid, comprising the steps of culturing the transformant in a medium; and recovering 5'-inosinic acid from the transformant or the medium in which the transformant is cultured.
- the above culture can be carried out according to appropriate media and culture conditions known in the art, and those skilled in the art can easily adjust the media and culture conditions and use them.
- the media may be a liquid media, but is not limited thereto.
- the culture method may include, but is not limited to, batch culture, continuous culture, fed-batch culture, or a combination thereof.
- the medium should meet the requirements of a specific strain in an appropriate manner and can be appropriately modified by a person skilled in the art.
- the culture medium for Escherichia spp. strains can be referred to a known document (Manual of Methods for General Bacteriology. American Society for Bacteriology. Washington D.C., USA, 1981), but is not limited thereto.
- the medium may include various carbon sources, nitrogen sources, and trace element components.
- Carbon sources that can be used include sugars and carbohydrates such as glucose, sucrose, lactose, fructose, maltose, starch, and cellulose; oils and fats such as soybean oil, sunflower oil, castor oil, and coconut oil; fatty acids such as palmitic acid, stearic acid, and linoleic acid; alcohols such as glycerol and ethanol; and organic acids such as acetic acid.
- sugars and carbohydrates such as glucose, sucrose, lactose, fructose, maltose, starch, and cellulose
- oils and fats such as soybean oil, sunflower oil, castor oil, and coconut oil
- fatty acids such as palmitic acid, stearic acid, and linoleic acid
- alcohols such as glycerol and ethanol
- organic acids such as acetic acid.
- Nitrogen sources that can be used include peptone, yeast extract, meat juice, malt extract, corn steep liquor, soybean meal, and urea or inorganic compounds such as ammonium sulfate, ammonium chloride, ammonium phosphate, ammonium carbonate, and ammonium nitrate. Nitrogen sources may also be used individually or as a mixture, but are not limited thereto. Sources of phosphorus that can be used include, but are not limited to, potassium dihydrogen phosphate or dipotassium hydrogen phosphate or corresponding sodium-containing salts. In addition, the culture medium may contain, but are not limited to, metal salts such as magnesium sulfate or iron sulfate required for growth.
- essential growth substances such as amino acids and vitamins may be included.
- suitable precursors may be used in the culture medium.
- the medium or individual components may be added to the culture solution in a suitable manner during the culturing process, either batchwise or continuously, but are not limited thereto.
- compounds such as ammonium hydroxide, potassium hydroxide, ammonia, phosphoric acid, and sulfuric acid may be appropriately added to the microbial culture solution during culturing to adjust the pH of the culture solution.
- an antifoaming agent such as fatty acid polyglycol ester may be used during culturing to suppress bubble formation.
- oxygen or an oxygen-containing gas e.g., air
- the temperature of the culture solution may be typically 20 to 45°C, for example, 25 to 40°C. The culturing period may continue until a desired amount of useful substances is obtained, for example, 10 to 160 hours.
- the step of recovering 5'-inosinic acid from the cultured transformant or the medium in which the transformant is cultured can collect or recover the 5'-inosinic acid produced from the medium using a suitable method known in the art depending on the culturing method.
- a suitable method known in the art for example, centrifugation, filtration, extraction, spraying, drying, evaporation, precipitation, crystallization, electrophoresis, differential dissolution (e.g., ammonium sulfate precipitation), chromatography (e.g., ion exchange, affinity, hydrophobicity, and size exclusion) can be used, but the present invention is not limited thereto.
- the step of recovering the 5'-inosinic acid can be performed by removing biomass by low-speed centrifugation of the culture medium and separating the obtained supernatant through ion exchange chromatography.
- the step of recovering 5'-inosinic acid may include a process of purifying 5'-inosinic acid.
- the PTS transporter subunit EIIC mutant according to the present invention has a changed protein activity by substituting one or more amino acids in the amino acid sequence constituting the PTS transporter subunit EIIC, and a recombinant microorganism containing the mutant can efficiently produce 5'-inosinic acid.
- Figure 1 is the structure of a pK19msb plasmid according to one embodiment of the present invention.
- PCR was performed with the primer pairs of primers 1 and 2 and primer pairs of primers 3 and 4, respectively. Afterwards, the two PCR products were connected into one fragment by performing overlapping PCR with the primer pairs of primers 1 and 4, respectively, using each of the two PCR products as a template.
- the PCR fragment and the pK19msb plasmid (SEQ ID NO: 5) were treated with the restriction enzyme smaI (NEB) and cloned using T4 ligase.
- the constructed plasmid was named pK_FP.
- pfu premix bioneer
- pfu premix bioneer
- the reaction was repeated 30 times at 95°C for 30 seconds, 58°C for 30 seconds, and 72°C for 1 minute and 30 seconds, and then at 72°C for 5 minutes.
- the primer sequences used for plasmid construction are shown in Table 1 below.
- Primer name Sequence number Primer sequence (5'-3') Primer 1 6 CGGCAAAGCGCACCTGAAGA Primer 2 7 CCGCAGCAACGACTTCGTTCA Primer 3 8 TGAACGAAGTCGTTGCTGCGG Primer 4 9 TCCATGAGCCGATCCACATTGCG
- the seed culture was prepared by primary culturing Corynebacterium stationarynis KCCM13339P in 10 mL of 2YT medium (containing 16 g/L tryptone, 10 g/L yeast extract, and 5 g/L sodium chloride) supplemented with 2% glucose. Isonicotinic acid hydrazine at a concentration of 1 mg/mL and 2.5% glycine were added to 100 mL of 2YT medium excluding glucose. Then, the seed culture was inoculated such that the OD 610 value was 0.3, and the culture was cultured at 30°C and 180 rpm for 5 to 8 hours until the OD 610 value became 0.6 to 0.7.
- 2YT medium containing 16 g/L tryptone, 10 g/L yeast extract, and 5 g/L sodium chloride
- Isonicotinic acid hydrazine at a concentration of 1 mg/mL and 2.5% glycine were added to 100 mL of 2YT medium excluding
- RG medium containing 18.5 g/l Brain Heart infusion and 0.5 M sorbitol
- RG medium containing 18.5 g/l Brain Heart infusion and 0.5 M sorbitol
- the medium was transferred to a 15 ml cap tube, cultured at 30°C for 2 hours, and streaked on selective medium (containing 5 g/l tryptone, 5 g/l NaCl, 2.5 g/l yeast extract, 18.5 g/l Brain Heart infusion powder, 15 g/l agar, 91 g/l sorbitol, and 20 ⁇ g/l kanamycin).
- Colonies generated by culturing at 30°C for 72 hours were cultured in a medium until stationary phase to induce secondary recombination, diluted to 10 -5 to 10 -7 and plated on a plate medium without antibiotics (containing 10% sucrose), and a strain that was not resistant to kanamycin and could grow on a medium containing 10% sucrose was selected, and this was named IFP-1.
- Each strain (parent strain or mutant) was inoculated at 1% volume by volume into a 100 mL flask containing 10 mL of the medium for producing 5'-inosinic acid in Table 2 below, and cultured with shaking at 34°C and 200 rpm for 45 hours. After completion of the culture, the concentration of 5'-inosinic acid in the medium was measured using HPLC (Agilent), and the results are shown in Table 3 below.
- the mutant strain introduced with the PTS transporter subunit EIIC mutant was confirmed to have approximately 18% improved 5'-inosinic acid production compared to the parent strain due to the substitution of alanine at position 281 with valine.
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Abstract
Description
| 프라이머 명칭 | 서열번호 | 프라이머 서열 (5'-3') |
| 프라이머 1 | 6 | CGGCAAAGCGCACCTGAAGA |
| 프라이머 2 | 7 | CCGCAGCAACGACTTCGTTCA |
| 프라이머 3 | 8 | TGAACGAAGTCGTTGCTGCGG |
| 프라이머 4 | 9 | TCCATGAGCCGATCCACATTGCG |
| 성분 | 함량 |
| Glucose | 70 g/L |
| (NH4)2SO4 | 2 g/L |
| MgSO4 | 1 g/L |
| Urea | 2 g/L |
| Yeast extract | 20 g/L |
| KH2PO4 | 2 g/L |
| FeSO4 | 10 mg/L |
| MnSO4 | 10 mg/L |
| Thiamine_HCl | 5 mg/L |
| biotin | 20 ug/L |
| Cystein | 20 mg/L |
| Bata-alanine | 20 mg/L |
| Adenine | 30 mg/L |
| 균주 | 5'-이노신산 생산량 (g/L) |
| KCCM13339P | 19.7 |
| IFP-1 | 23.2 |
Claims (6)
- 서열번호 4의 아미노산 서열에서 281번째 알라닌이 발린으로 치환된, 서열번호 2의 아미노산 서열로 구성된 PTS 수송체 서브유닛 EIIC 변이체.
- 청구항 1의 변이체를 암호화하는 폴리뉴클레오티드.
- 청구항 1의 변이체 또는 청구항 2의 폴리뉴클레오티드를 포함하는 형질전환체.
- 청구항 3에 있어서,상기 형질전환체는 코리네박테리움(Corynebacterium) 속 미생물인 것인 형질전환체.
- 청구항 3에 있어서,상기 형질전환체는 5'-이노신산 생산능을 가지는 것인 형질전환체.
- 청구항 3의 형질전환체를 배지에서 배양하는 단계; 및상기 형질전환체 또는 형질전환체가 배양된 배지로부터 5'-이노신산을 회수하는 단계를 포함하는 5'-이노신산의 생산 방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024576828A JP7707459B1 (ja) | 2023-04-11 | 2023-08-31 | Pts輸送体サブユニットeiic新規変異体およびこれを用いた5’-イノシン酸の生産方法 |
| CN202380097011.3A CN121079402A (zh) | 2023-04-11 | 2023-08-31 | 新的pts转运蛋白亚基eiic变体和使用其产生5’-肌苷酸的方法 |
| US18/880,346 US20250257334A1 (en) | 2023-04-11 | 2023-08-31 | Novel variant of pts transporter subunit eiic and 5'-inosinic acid production method using same |
| EP23933166.3A EP4534663A4 (en) | 2023-04-11 | 2023-08-31 | NOVEL VARIANT OF PTS TRANSPORTER EIIC SUBUNIT AND METHOD FOR PRODUCING 5'-INOSINIC ACID USING SAME |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2023-0047745 | 2023-04-11 | ||
| KR1020230047745A KR102684451B1 (ko) | 2023-04-11 | 2023-04-11 | Pts 수송체 서브유닛 eiic 신규 변이체 및 이를 이용한 5’-이노신산 생산 방법 |
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| WO2024214880A1 true WO2024214880A1 (ko) | 2024-10-17 |
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| PCT/KR2023/012972 Ceased WO2024214880A1 (ko) | 2023-04-11 | 2023-08-31 | Pts 수송체 서브유닛 eiic 신규 변이체 및 이를 이용한 5'-이노신산 생산 방법 |
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| Country | Link |
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| US (1) | US20250257334A1 (ko) |
| EP (1) | EP4534663A4 (ko) |
| JP (1) | JP7707459B1 (ko) |
| KR (1) | KR102684451B1 (ko) |
| CN (1) | CN121079402A (ko) |
| WO (1) | WO2024214880A1 (ko) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160078694A (ko) * | 2014-12-24 | 2016-07-05 | 대상 주식회사 | 5’-이노신산의 고생성능 코리네박테리움 암모니아게네스 변이 균주 및 이를 이용한 5’-이노신산의 제조 방법 |
| KR101904675B1 (ko) * | 2017-12-15 | 2018-10-04 | 씨제이제일제당 (주) | 5'-이노신산을 생산하는 미생물 및 이를 이용한 5'-이노신산의 생산 방법 |
| KR101916622B1 (ko) * | 2018-01-04 | 2018-11-07 | 씨제이제일제당 (주) | 신규 폴리펩타이드 및 이를 이용한 imp 생산방법 |
| KR101916611B1 (ko) * | 2017-12-15 | 2018-11-07 | 씨제이제일제당 (주) | 신규 폴리펩타이드 및 이를 이용한 imp 생산방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100954052B1 (ko) * | 2007-12-26 | 2010-04-20 | 씨제이제일제당 (주) | Abc-트랜스포터를 코딩하는 유전자가 불활성화된코리네박테리움 속 미생물 및 이를 이용한 5'-이노신산의제조방법 |
| KR101166027B1 (ko) | 2009-04-01 | 2012-07-19 | 씨제이제일제당 (주) | 5'-이노신산 생산성이 향상된 코리네박테리움 속 미생물 및 이를 이용한 핵산의 생산방법 |
-
2023
- 2023-04-11 KR KR1020230047745A patent/KR102684451B1/ko active Active
- 2023-08-31 WO PCT/KR2023/012972 patent/WO2024214880A1/ko not_active Ceased
- 2023-08-31 JP JP2024576828A patent/JP7707459B1/ja active Active
- 2023-08-31 US US18/880,346 patent/US20250257334A1/en active Pending
- 2023-08-31 EP EP23933166.3A patent/EP4534663A4/en active Pending
- 2023-08-31 CN CN202380097011.3A patent/CN121079402A/zh active Pending
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| KR101904675B1 (ko) * | 2017-12-15 | 2018-10-04 | 씨제이제일제당 (주) | 5'-이노신산을 생산하는 미생물 및 이를 이용한 5'-이노신산의 생산 방법 |
| KR101916611B1 (ko) * | 2017-12-15 | 2018-11-07 | 씨제이제일제당 (주) | 신규 폴리펩타이드 및 이를 이용한 imp 생산방법 |
| KR101916622B1 (ko) * | 2018-01-04 | 2018-11-07 | 씨제이제일제당 (주) | 신규 폴리펩타이드 및 이를 이용한 imp 생산방법 |
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| See also references of EP4534663A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4534663A1 (en) | 2025-04-09 |
| JP2025523562A (ja) | 2025-07-23 |
| KR102684451B1 (ko) | 2024-07-15 |
| CN121079402A (zh) | 2025-12-05 |
| EP4534663A4 (en) | 2025-10-01 |
| JP7707459B1 (ja) | 2025-07-14 |
| KR102684451B9 (ko) | 2024-11-27 |
| US20250257334A1 (en) | 2025-08-14 |
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