JP2012518999A - 宿主細胞およびその使用方法 - Google Patents
宿主細胞およびその使用方法 Download PDFInfo
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- 230000001629 suppression Effects 0.000 description 1
- 238000003239 susceptibility assay Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 208000027433 terminal osseous dysplasia Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000341 threoninyl group Chemical group [H]OC([H])(C([H])([H])[H])C([H])(N([H])[H])C(*)=O 0.000 description 1
- 239000012581 transferrin Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
- 201000008297 typhoid fever Diseases 0.000 description 1
- 238000010798 ubiquitination Methods 0.000 description 1
- 230000034512 ubiquitination Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
Description
有機体のゲノムもしくはエピソームの特異的修飾、または他の安定的な外部DNAまたはRNAの導入を意味する。
Algorithm: Needleman and Wunsch, J. Mol Biol. 48: 443−453 (1970)
Comparison matrix: BLOSSUM62 from Hentikoff and Hentikoff, Proc. Natl. Acad. Sci. USA. 89:10915−10919 (1992)
ギャップペナルティー: 12
ギャップ長ペナルティー: 4
これらのパラメータを使う有用なプログラムは、「ギャップ」プログラムとして遺伝学コンピュータグループ、Madison WI.から公的に入手可能である。上述のパラメータは、ペプチド比較(終端ギャップについてはペナルティなしである)のためのデフォルトパラメータである。
比較マトリックス:整合=+10、非整合=0
ギャップペナルティー:50
ギャップ長ペナルティー:3
入手可能先:「ギャップ」プログラム(Genetics Computer Group, Madison WI.)
これらは、核酸比較のためのデフォルトパラメータである。
分子にカラム内のパッキング物質との選択的親和性を提供することにより分子の精製を促進するのに使って良い。親和性タグの非限定的例はhis−タグである。
細胞は、収集する間濃縮され、例えば、遠心分離または濾過によって培養ブロスから分離される。細胞の収集は、細胞を溶解して、限定されないが、ポリペプチドおよびポリヌクレオチドなどの細胞内物質を得る段階を含んで良い。限定されないが、異種的に発現するポリペプチドを含む特定の細胞の物質は、培養中に細胞から遊離することがあるということを当業者は理解されたい。従って、対象の産物(例えば、異種的に発現したポリペプチド)は、細胞を収集した後も培養ブロスにとどまり続ける場合がある。
本明細書で使用する場合、遺伝子改変宿主細胞内で比較される酵素またはその断片または酵素活性の「減少量」とは、非遺伝子改変宿主細胞と比較した時、少なくとも1つの酵素をより少なく産生、または少なくとも1種類の酵素活性をより少なく示す遺伝子改変宿主細胞を意味する。典型的に、遺伝子改変宿主細胞で産生した酵素活性は、遺伝的修飾前の同種の野生型系統と比較される。しかしながら、遺伝子改変宿主と、同属であるが異なる種もしくは系統からの野生型宿主または別の遺伝子改変系統を有する野生型宿主との比較を行うこともできる。少なくとも1つの酵素または酵素活性の減少には、少なくとも1つの酵素または酵素活性完全消滅が含まれ、その場合、少なくとも1つの酵素のうちのいずれも遺伝子改変宿主細胞内で産生されない、および/または少なくとも1つの酵素のうちのいずれも機能的でなく、活性を示さない。さらに、少なくとも1つの酵素活性の減少もこの定義の範囲内に含まれる。即ち、1つ以上の活性を有する酵素は、第1の活性量を維持し、一方同じ酵素の第2の活性は減少させることができる。
遺伝的修飾は、細胞の機序によって逆転するか、または減弱する。あるいは、変異は非逆転および/または非漏出性でありうる。「漏出変異」は、野生型機能の全部ではないが一部の不活性化を生じる変異を含む。
本発明の宿主細胞によって遂行される遺伝的修飾は、その細胞のDNA配列のコーディング領域および/または遺伝子の発現に影響を及ぼす領域に位置する。従って、本発明の修飾は一般的に、遺伝子産生またはタンパク質分解および/または糖鎖形成に関わるタンパク質および/または酵素の遺伝子産生の制御または促進に影響を及ぼす。本発明の細胞において、異種的に発現したポリペプチドをタンパク分解的に切断および/またはグリコシル化する能力が低下するのは、改変された生物学的特性を有する1つ以上の酵素の産生、かかる1つ以上の酵素の産生欠如、または1つ以上の酵素の低レベルの産生による構造上および/または立体構造上の変化が原因である。
7 8 9 10 11 12 13 14 15 16 17
His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-
18 19 20 21 22 23 24 25 26 27 28
Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys-Glu-Phe-
29 30 31 32 33 34 35 36 37
Ile-Ala-Trp-Leu-Val-Lys-Gly-Arg-Xaa (配列番号2)
ここで37位のXaaはGly(以下、「GLP−1(7−37)」として示される)、または−NH2(以下、「GLP−1(7−36)」として示される)である。GLP−1断片としては、ヒトGLP−1のアミノ酸7〜36位(GLP−1(7−36))を含む、あるいはそれで構成されるGLP−1分子を挙げ得るが、これらに限定されない。GLP−1の変異体またはその断片としては、野生型GLP−1または配列番号2に示されるGLP−1の天然に生じた断片における、1つ、2つ、3つ、4つ、5つまたはそれ以上のアミノ酸置換を挙げ得るが、これらに限定されない。変異体GLP−1またはGLP−1の断片としては、野生型GLP−1のアラニン8に類似のアラニン残基の置換であり、かかるアラニンがグリシンに変異している(以下、「A8G」として示される)(例えば、全体を参照として本明細書に援用する米国特許第5,545,618号に開示の突然変異体を参照されたい)場合を挙げ得るが、これらに限定されない。
HGEGTFTSDVSSYLEGQAAKEFIAWLVKGRHGEGTFTSDVSSYLEGQAAKEFIAWLVKGR 60
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAE 120
NCDKSLHTL FGDKLCTVATLRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPE 180
VDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFAKRYKAAFTECCQAADKAACLL 240
PKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTDLT 300
KVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMP 360
ADLPSLAADFVESKDVCKNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEK 420
CCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELFEQLGEYKFQNALLVRYTKKVPQVS 480
TPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVTKCCTE 540
SLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKA 600
TKEQLKAVMDDFAAFVEKCCKADDKETCFAEEGKKLVAASQAALGL 674
(配列番号1)
以下の実施例はこの発明の様々な非限定的態様を説明する。
新規なプロテアーゼを親和性精製およびLC/MS分析を使ってピキア培養上清から同定した。図1は、ゲル上に同定された新規なピキアメチロトローフ酵母プロテアーゼ(Ymp1)を表す図である。B378(ピキアヌル系統)からの浄化ろ過された上清を、ビオチン標識したアプロチニンで一晩インキュベートした。上清を2mLアビジンカラム(ピアス)に供し、リン酸緩衝液で洗浄した。カラムを、0.1Mトリス、2M塩化ナトリウム、pH7.5、次に0.1M酢酸ナトリウム、2M塩化ナトリウム、pH4.5そして最終的にビオチン溶出緩衝液(ピアス)で経時的に溶出させた。溶出液を濃縮して、SDS−PAGEを行った。もっとも顕著なバンドであるバンド1と2をゲルから切り出し、還元し、アルキル化し、in situでトリプシンを使用して消化した。バンドからのトリプシンペプチドを液体クロマトグラフィー・タンデム質量分析で分析した。未解釈の配列データを、Mascotタンパク質同定ソフトウェアを使ってピキアコンティグ−ペプチドデータベース(Integrated Genetics)内で検索した。
CTGGAAGATG TACAAGATGC ACCAAAGATC AAAGGTAATG AAGTACCCGG TCGCTATATC
ATTGAGTATG AAGAAGCTTC CACTTCAGCA TTTGCTACCC AACTGAGAGC TGGGGGATAT
GACTTTAACA TCCAATACGA CTACTCAACT GGTTCCCTTT TCAACGGAGC ATCTGTTCAA
ATCAGCAACG ATAACAAAAC CACTTTCCAG GATTTGCAAA GTTTGCGTGC AGTCAAAAAT
GTTTACCCAG CTACTCTCAT TACATTAGAT GAAACATTTG AGCTTGCTGA CACGAAGCCA
TGGAACCCTC ATGGAATTAC CGGTGTCGAT TCTTTGCATG AGCAAGGATA TACTGGTAGT
GGTGTTGTTA TTGCAGTTAT CGATACTGGT GTTGACTATA CACACCCTGC TCTGGGTGGT
GGTATCGGAG ATAATTTCCC TATCAAAGCT GGTTATGATT TGTCTTCCGG TGATGGTGTC
ATCACGAATG ATCCTATGGA TTGTGACGGT CATGGTACCT TTGTATCCTC CATCATTGTT
GCAAATAACA AAGATATGGT TGGTGTTGCA CCAGATGCTC AGATTGTCAT GTACAAAGTG
TTCCCCTGTT CTGATAGTAC TTCGACTGAC ATAGTTATGG CGGGTATGCA AAAGGCCTAT
GATGATGGTC ACAAGATTAT TTCGCTATCA CTGGGATCTG ACTCGGGGTT TTCCAGTACT
CCAGCTTCCT TAATGGCCAG CAGGATTGCT CAAGACAGAG TTGTTTTGGT GGCTGCTGGT
AACTCTGGAG AACTTGGTCC ATTCTATGCC TCCTCCCCTG CTTCTGGGAA ACAAGTCATT
TCAGTTGGAT CTGTTCAAAA CGAACAATGG ACAACCTTTC CAGTAACCTT TACCTCTTCA
AACGGTGAAT CAAGGGTTTT TCCTTACCTC GCTTACAATG GTGCACAGAT TGGATTTGAT
GCCGAGCTTG AGGTTGATTT TACCGAAGAA AGAGGATGCG TCTATGAACC AGAGATCTCC
GCAGATAATG CGAATAAAGC TATTTTGTTA AGAAGGGGCG TCGGCTGTGT TGAAAACTTG
GAATTCAATT TATTGTCTGT GGCTGGTTAC AAGGCTTACT TCTTGTACAA CTCATTTTCA
AGACCATGGA GTCTCTTGAA TATTTCTCCA CTGATTGAGC TAGACAACGC TTACTCTCTT
GTTGAAGAGG AAGTTGGAAT ATGGGTGAAA ACCCAAATCG ACGCCGGTAA CACCGTCAAG
TTAAAGGTGA GCACGAGTGA CCAAATGTTG CCATCTGATA AAGAGTATTT GGGAGTTGGA
AAGATGGATT ATTACTCCTC TCAAGGACCT GCTTATGAGC TTGAATTTTT CCCAACGATA
TCCGCTCCAG GTGGAGACAG TTGGGGCGCT TGGCCCGGTG GGCAATACGG TGTTGCCTCA
GGAACAAGTT TTGCTTGCCC CTATGTTGCA GGTCTTACAG CTCTTTATGA ATCGCAGTTT
GGAATTCAAG ATCCCCAGGA CTATGTGAGA AAATTAGTCT CCACAGCTAC CGATCTTCAA
TTATTTGACT GGAACGCAGT GAAACTTGAG ACCTCTATGA ATGCTCCACT TATTCAACAG
GGAGCTGGTC TAGTGAACGC TCTTGGTTTG TTTGAGACTA AGACTGTGAT CGTGTCTGCT
CCTTATTTGG AGCTCAATGA CACCATCAAT AGAGCCAGTG AGTATACCAT TCAAATTAAG
AATGAGAACT CTGAGACTAT TACCTATCAA GTTGTTCACG TTCCGGGAAC TACTGTCTAC
TCTAGATCAG CTTCTGGGAA CATCCCATAC CTGGTCAATC AAGATTTTGC ACCTTACGGT
GATAGTGATG CTGCGACAGT TGCTCTATCC ACAGAAGAGT TGGTTTTGGG ACCAGGAGAA
GTTGGTGAAG TCACTGTGAT CTTCTCTACA GAAGAAATTG ATCAAGAAAC TGCTCCAATT
ATTCAGGGTA AGATTACATT TTATGGTGAT GTCATACCGA TTGCTGTTCC TTATATGGGA
GTTGAAGTTG ATATTCATTC CTGGGAGCCT CTCATTGAGA GGCCTTTATC AGTGAGAATG
TATTTGGATG ATGGTTCCTT AGCATATGTT GATGATGATC CTGATTATGA GTTCAATGTG
TATGACTGGG ATTCTCCTAG ATTTTATTTT AACCTGAGAT ATGCAACCAA AGAAGTATCG
ATTGACTTGG TGCACCCTGA TTATAGCATT GAGAACGACT ACGAATGGCC TTTAGTTTCC
GGACACAACA ACTATTATGG TCCCGTGGGA TACGACTACG ATTATACCTC GGGTCAAGCC
TTTTTGCCTC GTTACTTTCA ACAACGTATT AACGAACTTG GATATCTTTC TTTTTCCAGA
TTTGCTAACT TTTCTGTAGT TCCTGCTGGT GAATACAAAG CTCTATTTAG AGTTTTGCTA
CCATATGGAG ACTTTTGGAA CAAAGAAGAC TGGCAATTGT TTGAATCCCC AGTGTTTAAC
GTCCTCGCTC CACCGAATGA AGAAAACACT ACTGAAGAGC CAACTGAGGA ATCCAGCGAG
GAGCCTACCG AAGAGTCAAC GTCTGAGTCA ACTGAAGAGC CCTCTTCTGA GTCAACTGAG
AAATCTAGCG AGGTGCCAAC TGAAGAAATT ACTGAAGATG CAACATCCAC AATTGATGAT
GATGAAGCAT CCACCGAAAG CTCTACTGAA GAACCAAGTG CTCAGCCCAC CGGTCCTTAC
TCTGATTTGA CTGTCGGTGA GGCCATTACC GACGTTAGTG TCACCAGTTT GAGGACAACT
GAAGCATTTG GATACACTTC CGACTGGTTG GTTGTGTCTT TCACTTTCAA CACTACTGAC
AGAGATATTA CTCTCCCACC TTACGCTGTT GTACAAGTAA CTATCCCAAA TGAACTTCAA
TTCATTGCTC ATCCAGAATA CGCCCCATAC CTTGAGCCCT CATTGCAAGT TTTCTACACT
AAGAATGAAA GATTAATTAT GACTAGTCAG TTCAACTACG ACACCAGAGT CATCGACTTC
AAGTTTGACA ATCGAGACCA AGTAATAACT CAAGTGGAGG GAGTTGTTTA TTTCACGATG
AAACTAGAAC AAGATTTCAT TTCTGCATTG GCCCCAGGTG AATACGATTT TGAATTTCAT
ACATCCGTTG ATTCTTATGC TTCGACCTTT GACTTTATTC CATTGATTAG ATCCGAGCCA
ATCAAATTGA TAGCAGGTGC ACCAGACGAA GTTGAATGGT TTATTGATAT TCCAAGTGCA
TACAGCGATT TGGCAACGAT AGATATTAGT TCTGATATCG ATACTAATGA TAATTTGCAG
CAGTACTTCT ATGATTGCTC AAAGCTCAAG TACACTATTG GAAAAGAGTT TGATCAGTGG
GGTAATTTTA CAGCTGGATC AGATGGTAAC CAATACAGCA ATACCACCGA TGGGTATGTT
CCAATTACTG ATTCTACCGG CTCTCCAGTA GCTGAAGTTC AATGTTTAAT GGAAAGTATC
TCATTGAGTT TCACAAATAC TCTTGCTGAG GATGAAGTAT TGAGAGTTGT TCTTCACTCT
TCTGCGTTTA GACGTGGTTC ATTCACCATG GCCAACGTGG TAAACGTTGA CATTACAGCT
GGTGGATTGG CAAAAAGAGA ACTCTTCTCT TATATATTGG ATGAAAATTA CTATGCTAGT
ACTGGATCTG AGGGGTTGGC ATTTGACGTA TTTGAAGTTG CTGATCAGGT CGAGGAGCCA
ACTGAGGAGT CAACCTCAGA GGAATCTACT GAACAGGAAA CTTCCACCGA GGAACCTACC
GAGGAATCAA CTGAACCTAC TGAGGAATCT ACCCAGGAAC CTACTGAAGA GCCCACCGAC
GAGCCTACTT CTGAGTCAAC TGAGGAACCT TCTGAGGAGC CAACTTCTGA CGATCTCTCA
ATTGACCCAA CTGCTGTACC TACCGATGAA CCTACTGAAG AGCCAACTGA GGAGCCTACT
TCTGAGTCAA CTGAGGAACC TTCTGAGGAG CCAACTTCTG ACGATCTCTC AATTGACCCA
ACTGCTGTAC CTACCGATGA ACCTACTGAA GAGCCAACTG AGGAGCCTAC TTCTGAGTCA
ACTGAGGAAC CTTCTGAGGA GCCAACTTCT GACGATCTCT CAATTGACCC AACTGCTGTA
CCTACCGATG AACCTACTGA AGAGCCAACT GAGGAGCCGA CCTCTGAGAC TACCGATGAT
CCATCGATAG CACCTACTGC TGTGCCAACT TCCGACACAT CTTCTGGACA ATCGGTGGTT
ACTCAAAACA CTACAGTCAC TCAGACTACC ATCACTTCAG TCTGTAATGT TTGTGCTGAG
ACCCCTGTAA CAATCACTTA CACTGCACCA GTTGTGACTA AGCCAGTTTC TTACACCACC
GTTACTTCAG TTTGCCATGT ATGTGCAGAG ACACCAATCA CAGTTACCTT GACGTTGCCA
TGTGAAACCG AAGACGTGAC AAAGACTGCC GGCCCTAAGA CTGTCACTTA CACCGAAGTT
TGCAACTCCT GTGCTGACAA GCCTATCACT TACACCTACA TCGCTCCAGA GTACACTCAA
GGTGCCGAAC GTACAACAGT TACATCGGTT TGCAACGTTT GTGCTGAGAC ACCTGTAACG
CTAACATACA CTGCGCCGAA AGCCAGTCGT CATACAGTTC CTTCACAATA TTCAAGTGCC
GGAGAGCTCA TTTCATCCAA GGGGATCACG ATTCCTACTG TTCCTGCCCG TCCAACTGGT
ACTTATAGTA AGTCTGTTGA CACTAGCCAA CGTACACTCG CTACCATTAC AAAATCTTCA
GATGAGTCTA ACACTGTTAC CACTACTCAA GCCACACAAG TTTTGAGCGG TGAATCCAGT
GGAATTCAAG CTGCTTCAAA CAGCACGAGC ATCTCAGCTC CAACTGTCAC TACAGCTGGG
AACGAGAACT CTGGATCTAG ATTTTCGTTT GCTGGACTAT TCACAGTTCT GCCTCTTATC
TTGTTCGTTA TATAA(配列番号3)
MFLKSLLSFA SILTLCKAWD LEDVQDAPKI KGNEVPGRYI IEYEEASTSA FATQLRAGGY
DFNIQYDYST GSLFNGASVQ ISNDNKTTFQ DLQSLRAVKN VYPATLITLD ETFELADTKP
WNPHGITGVD SLHEQGYTGS GVVIAVIDTG VDYTHPALGG GIGDNFPIKA GYDLSSGDGV
ITNDPMDCDG HGTFVSSIIV ANNKDMVGVA PDAQIVMYKV FPCSDSTSTD IVMAGMQKAY
DDGHKIISLS LGSDSGFSST PASLMASRIA QDRVVLVAAG NSGELGPFYA SSPASGKQVI
SVGSVQNEQW TTFPVTFTSS NGESRVFPYL AYNGAQIGFD AELEVDFTEE RGCVYEPEIS
ADNANKAILL RRGVGCVENL EFNLLSVAGY KAYFLYNSFS RPWSLLNISP LIELDNAYSL
VEEEVGIWVK TQIDAGNTVK LKVSTSDQML PSDKEYLGVG KMDYYSSQGP AYELEFFPTI
SAPGGDSWGA WPGGQYGVAS GTSFACPYVA GLTALYESQF GIQDPQDYVR KLVSTATDLQ
LFDWNAVKLE TSMNAPLIQQ GAGLVNALGL FETKTVIVSA PYLELNDTIN RASEYTIQIK
NENSETITYQ VVHVPGTTVY SRSASGNIPY LVNQDFAPYG DSDAATVALS TEELVLGPGE
VGEVTVIFST EEIDQETAPI IQGKITFYGD VIPIAVPYMG VEVDIHSWEP LIERPLSVRM
YLDDGSLAYV DDDPDYEFNV YDWDSPRFYF NLRYATKEVS IDLVHPDYSI ENDYEWPLVS
GHNNYYGPVG YDYDYTSGQA FLPRYFQQRI NELGYLSFSR FANFSVVPAG EYKALFRVLL
PYGDFWNKED WQLFESPVFN VLAPPNEENT TEEPTEESSE EPTEESTSES TEEPSSESTE
KSSEVPTEEI TEDATSTIDD DEASTESSTE EPSAQPTGPY SDLTVGEAIT DVSVTSLRTT
EAFGYTSDWL VVSFTFNTTD RDITLPPYAV VQVTIPNELQ FIAHPEYAPY LEPSLQVFYT
KNERLIMTSQ FNYDTRVIDF KFDNRDQVIT QVEGVVYFTM KLEQDFISAL APGEYDFEFH
TSVDSYASTF DFIPLIRSEP IKLIAGAPDE VEWFIDIPSA YSDLATIDIS SDIDTNDNLQ
QYFYDCSKLK YTIGKEFDQW GNFTAGSDGN QYSNTTDGYV PITDSTGSPV AEVQCLMESI
SLSFTNTLAE DEVLRVVLHS SAFRRGSFTM ANVVNVDITA GGLAKRELFS YILDENYYAS
TGSEGLAFDV FEVADQVEEP TEESTSEEST EQETSTEEPT EESTEPTEES TQEPTEEPTD
EPTSESTEEP SEEPTSDDLS IDPTAVPTDE PTEEPTEEPT SESTEEPSEE TSDDLSIDPT
AVPTDEPTEE PTEEPTSEST EEPSEEPTSD DLSIDPTAVP TDEPTEEPTE EPTSETTDDP
SIAPTAVPTS DTSSGQSVVT QNTTVTQTTI TSVCNVCAET PVTITYTAPV VTKPVSYTTV
TSVCHVCAET PITVTLTLPC ETEDVTKTAG PKTVTYTEVC NSCADKPITY TYIAPEYTQG
AERTTVTSVC NVCAETPVTL TYTAPKASRH TVPSQYSSAG ELISSKGITI PTVPARPTGT
YSKSVDTSQR TLATITKSSD ESNTVTTTQA TQVLSGESSG IQAASNSTSI SAPTVTTAGN
ENSGSRFSFA GLFTVLPLIL FVI.(配列番号4)
ノックアウト系統(実施例3を参照)のピキアymp1の上澄みから、実施例1に記述したのと同様に、親和性精製とLC/MS分析を使ってさらに2つの新規なメチロトローフ酵母プロテアーゼ(Ymp2およびYmp3)を同定した。B580(ピキアymp1欠失系統)からの浄化ろ過された上清を、ビオチン標識したAEBSF(4−(2−アミノエチル)ベンゼンスルホニルフッ化物塩酸塩で一晩インキュベートした。上清を、10mLアビジンカラムに充填し(ピアス)、そしてリン酸緩衝液で洗浄した。カラムを、0.1Mトリス、2M塩化ナトリウム、pH7.5、次に0.1M酢酸ナトリウム、2M塩化ナトリウム、pH4.5、そして最終的にビオチン溶出緩衝液(ピアス)で経時的に溶出した。溶出物を8M尿素を加えて変性させ、20mMジチオスレイトール(DTT)と反応させてシステイン残基を還元し、次に、20mMヨードアセトアミドと反応させてアルキル化した。試料を100mMアンモニウム炭酸水素塩(pH8.5)で希釈して2M尿素とした後、タンパク質はトリプシンで消化した(Sequencing grade modified trypsin, Promega, Madison, WI)。消化の結果生じたペプチド類混合物をPepCleanスピンカラム(Pierce, Rockford, IL)を使って脱塩し、LC−MS/MS systemを使って分析した。このシステムでは、75μm内径逆相C18カラムを持つ高圧液体クロマトグラフィー(HPLC)が、オンラインでイオントラップ質量分析計(Thermo, Palo Alto, CA)と連結されていた。LC−MS/MS分析から得た質量分析データを使って、GenBankからの最近の非重複性タンパク質データベースとピキアデータベース(Integrated Genetics)内を、Mascotタンパク質同定ソフトウェアを使用して検索した。
ATGGCTCCCA GAACACTACC AGAAGACTTA ATTCCCTCCC TATACGACTT GCACATCTAC
AACTTCCAAC CCGAAAAAAA GACTTATGAT GGAGACATTG TCATCCACTT GGAGGTGAAG
GAGCCCACTG ATGAAGTGGT CTTCAATGCC AAGGATTTGG AATTGAAAGA CGTACATGTC
TTCCACAATG TCAACAAGTC TGAAAACGAA ATCCCCGTTA AGGAGATTGT TGATAACGAG
CTCATCACAA TTAAGCTCAA AGAGAAGGTT ACTTCCGGAA CGTTGCTGGT GAATATTTCC
TTCACCGGTA ACATTCAATC TGATAAAATT GGATTTTACA AGGGAGACAC AGATGTGGAA
GGAAGAGTCA CATACACTAC AAACCTTACC ACTCCAAATG CCAGGTTGGC ATTCCCATGT
CTTGATAACA TATTGTTGAA AGCTCCATTC AAGTTCGGAG TAACTGCCAA TCCAGGACAA
TTAGTGAGTT CCATTTTGGA TCTAAGCTCT GAGGCTGACG TCTTGAATGA CAATGACGAT
GTGATTGGTA CGAGATACCA ATACCAAGTG AGTGAGCCAA TAGCCCCAGC TTTACTGGAG
TGGACCATTC ATATTTAA (配列番号5)
MAPRTLPEDL IPSLYDLHIY NFQPEKKTYD GDIVIHLEVK EPTDEVVFNA KDLELKDVHV
FHNVNKSENE IPVKEIVDNE LITIKLKEKV TSGTLLVNIS FTGNIQSDKI GFYKGDTDVE
GRVTYTTNLT TPNARLAFPC LDNILLKAPF KFGVTANPGQ LVSSILDLSS EADVLNDNDD
VIGTRYQYQV SEPIAPALLE WTIHI (配列番号6)
ATGGTCAAAC TCATATCAAT TATAGCCCTA GTTCAACTTG TCTCTGCGAC AATTGTACCT
TGGAATCTCC AGAACGTCTT ATCTGACGTC CATCACCCTT CTCTCCATCT CTTGGATTAT
ATTCAATCCT TGAAGAACGA GGTAATGTTC GATGGCGACG ATCGCAGAAT AATCAAGTTA
GGCCCCCAAG AATACCGTAT TATCACTGAA AAAGAGAAAT ACCAGTTGAA AACAGAGGGG
ATATCATTTA TCGATGTCAC CTATCAGCAT GGAGACAATG TAGAGCTGCT CTATTCCAGT
GCGCCAGTTA CCGTTCCAGA CTATCTTTAT CCGTCCAATG ATACTTTCCA TTTCAAACAA
GTAAATTCTT TGATAGGTGA GATTGACATT GGCAGAATGC AGGCGTTTTT GGGAAGGTTC
TCTAGCTTCT TTACAAGATT TTACAAATCT GACAAGGGGT TGCAGAGTTC TATCTGGTTA
CAAGGTGAAT TGGTTCAATT GGCCTTGAAA GATCCATCGA GGTTCAATGT TACTACTGTG
GAACACCCTT GGAAGCAGAA TTCTGCCATC TTTACGATAT ACGGTGAAAA TGTTGATCCT
TCGAAAGGAA AAGGGGACAT TGTAGTAGTG GGATGCCATC AAGATTCCAT AAACTTGCTT
TTCCCCAACA TTCTCCGTGC TCCAGGGGCT GATGATGATG GATCTGGTGT AACTTCCAAC
CTTGAAGCGC TCAGAATCAT AGTTGAAAGT GGCCTCAAGT TTCACAATAC AGTAGAGTTT
CACTTTTATT CTGCCGAAGA AGGAGGACTA CTTGGCTCCC AGCAAATTTT CAGCTCGTAT
AGAGCTGCAG AAGAGACTGT TGTTGCTATG CTACAACAGG ACATGACTGG ATACATCCAA
AAAGCTTTAG ACCACGGGGA ATCCGACCAC TTCGGGCTAA TCACTGACCA TACAAACGCA
AATCTGAATA GCTTCCTTGC ACTTTTAATC GATGCATACA CTTCAATTCC CTACAAAGAA
ACCGAATGTG GGTATGCCTG CTCAGATCAT AGTTCTGCCT TGGAACATGG TTATCCATCT
GCCATGGTCT TTGAAAGTAG TTTTGCCTAC ACAAATCCCT TCATCCATAG CACCCAAGAC
ACAATTGACA AGATCAATTT TCCACATATG GCAGAGCAT GTCAAGTTGG TCCTGGGTTA
CGTTGTAGAG TTGGGATTAG AACATTTTAG GTGA (配列番号7)
MVKLISIIAL VQLVSATIVP WNLQNVLSDV HHPSLHLLDY IQSLKNEVMF DGDDRRIIKL
GPQEYRIITE KEKYQLKTEG ISFIDVTYQH GDNVELLYSS APVTVPDYLY PSNDTFHFKQ
VNSLIGEIDI GRMQAFLGRF SSFFTRFYKS DKGLQSSIWL QGELVQLALK DPSRFNVTTV
EHPWKQNSAI FTIYGENVDP SKGKGDIVVV GCHQDSINLL FPNILRAPGA DDDGSGVTSN
LEALRIIVES GLKFHNTVEF HFYSAEEGGL LGSQQIFSSY RAAEETVVAM LQQDMTGYIQ
KALDHGESDH FGLITDHTNA NLNSFLALLI DAYTSIPYKE TECGYACSDH SSALEHGYPS
AMVFESSFAY TNPFIHSTQD TIDKINFPHM AEHVKLVLGY VVELGLEHFR (配列番号8)
ATGAAATCGG TTATTTGGAG CCTTCTATCT TTGCTAGCAT TGTCGCAGGC ATTGACTATT
CCATTGCTGG AAGAGCTTCA ACAGCAAACA TTTTTTAGCA AGAAAACCGT TCCTCAACAA
GTTGCTGAAT TGGTGGGCAC CCATTACTCT AAGGATGAGA TAATCAGTCT ATGGAAGGAC
ATTGAGCTGG ATGTACCCAG GGAAAAGATC CAAGAGGCCT TCGATAAGTT CGTAAAACAA
TCAACTGCCA CTTCCCCCGT TAGAAATGAA TTTCCCTTGT CTCAGCAAGA TTGGGTGACA
GTGACCAACA CCAAGTTTGA TAATTATCAA TTGAGGGTTA AAAAATCCCA CCCTGAAAAG
CTAAACATTG ATAAGGTAAA GCAATCTTCG GGATACCTGG ATATCATTGA TCAAGATAAG
CATCTTTTCT ATTGGTTTTT TGAATCCCGA AATGATCCGT CCACAGACCC AATCATCCTA
TGGTTGAATG GTGGACCCGG CTGCTCTTCT ATTACAGGGT TGCTATTCGA AAAGATTGGC
CCCAGTTACA TCACCAAAGA GATTAAGCCG GAACATAATC CTTATTCATG GAACAACAAT
GCTAGTGTTA TCTTCCTTGA GCAACCGGTT GGAGTAGGAT TTTCTTACTC TTCTAAGAAA
GTCGGTGATA CTGCAACTGC TGCCAAAGAT ACATATGTGT TTTTGGAGCT TTTCTTCCAA
AAGTTTCCTC AGTTCCTGAC CTCTAATCTG CACATTGCTG GGGAATCGTA TGCTGGCCAT
TATTTGCCCA AGATTGCTTC TGAGATTGTG TCTCACGCAG ACAAGACGTT TGACCTTTCA
GGAGTCATGA TCGGTAATGG TCTTACTGAT CCTCTAATTC AGTATAAGTA CTATCAGCCA
ATGGCCTGTG GAAAAGGTGG CTACAAGCAG GTCATTTCGG ACGAGGAATG TGATGAATTG
GATAGGGTCT ATCCAAGATG TGAACGTTTA ACGCGGGCAT GTTATGAGTT CCAAAATTCA
GTTACTTGTG TTCCGGCAAC ACTTTATTGC GACCAAAAGC TACTGAAGCC GTACACTGAC
ACTGGCTTGA ATGTCTATGA TATTCGTACA ATGTGCGATG AAGGGACTGA TTTGTGTTAC
AAAGAACTGG AATACGTGGA GAAGTACATG AACCAGCCTG AAGTGCAGGA AGCCGTGGGC
TCTGAAGTCA GTTCTTACAA AGGTTGTGAC GATGATGTCT TCTTAAGATT TTTGTACTCT
GGCGATGGAT CTAAGCCTTT CCACCAGTAT ATCACGGATG TTCTCAATGC AAGTATTCCG
GTTCTGATTT ACGCAGGTGA TAAAGATTAT ATCTGTAATT GGCTAGGAAA CCAAGCTTGG
GTCAATGAGC TAGAATGGAA CTTGTCTGAG GAATTCCAGG CAACTCCGAT TCGACCGTGG
TTCACTTTGG ACAATAACGA TTATGCAGGA AACGTACAAA CTTATGGAAA CTTTTCCTTT
CTAAGAGTAT TTGATGCTGG TCACATGGTT CCTTACAATC AACCAGTCAA CGCACTTGAC
ATGGTTGTCA GATGGACACA CGGTGATTTC TCATTTGGTT ATTAA (配列番号:9)
MKSVIWSLLS LLALSQALTI PLLEELQQQT FFSKKTVPQQ VAELVGTHYS KDEIISLWKD
IELDVPREKI QEAFDKFVKQ STATSPVRNE FPLSQQDWVT VTNTKFDNYQ LRVKKSHPEK
LNIDKVKQSS GYLDIIDQDK HLFYWFFESR NDPSTDPIIL WLNGGPGCSS ITGLLFEKIG
PSYITKEIKP EHNPYSWNNN ASVIFLEQPV GVGFSYSSKK VGDTATAAKD TYVFLELFFQ
KFPQFLTSNL HIAGESYAGH YLPKIASEIV SHADKTFDLS GVMIGNGLTD PLIQYKYYQP
MACGKGGYKQ VISDEECDEL DRVYPRCERL TRACYEFQNS VTCVPATLYC DQKLLKPYTD
TGLNVYDIRT MCDEGTDLCY KELEYVEKYM NQPEVQEAVG SEVSSYKGCD DDVFLRFLYS
GDGSKPFHQY ITDVLNASIP VLIYAGDKDY ICNWLGNQAW VNELEWNLSE EFQATPIRPW
FTLDNNDYAG NVQTYGNFSF LRVFDAGHMV PYNQPVNALD MVVRWTHGDF SFGY (配列番号10)
ATGATATTAC ACACCTATAT TATTCTCTCG TTATTGACTA TATTTCCTAA AGCTATTGGT
CTGTCCTTGC AGATGCCAAT GGCCTTGGAA GCTAGTTATG CCTCATTAGT GGAGAAAGCA
ACCCTCGCTG TTGGACAAGA AATTGATGCC ATACAAAAGG GTATTCAGCA AGGTTGGTTG
GAAGTAGAGA CAAGATTTCC AACTATAGTG TCACAGTTAT CCTATAGTAC TGGCCCAAAA
TTTGCGATCA AGAAGAAAGA TGCAACTTTT TGGGATTTCT ATGTTGAAAG TCAAGAGTTG
CCAAACTACC GAATTAATGA AAATCTGAAA CCAATTTTCA ACCCCTATTC GTGGAATGGT
AATGCTTCAA TCATCTACTT AGATCAACCG GTCAATGTTG GGTTTTCTTA TTCTTCATCA
TCGGTGAGTA ACACTGTTGT TGCGGGAGAA GATGTGTATG CATTTCTTCA GCTTTTTTTT
CAACACTTCC CGGAATATCA AACTAATGAC TTTCATATTG CCGGTGAATC TTATGCAGGA
CATTACATTC CGGTGTTTGC AGACGAAATT TTGAGTCAAA AGAACAGAAA TTTCAATCTT
ACTTCAGTCT TGATCGGAAA TGGATTAACT GACCCTTTGA CTCAATACCG ATATTACGAG
CCAATGGCTT GTGGTGAAGG TGGTGCCCCG TCAGTACTGC CTGCCGATGA GTGCGAAAAT
ATGCTAGTTA CCCAAGATAA ATGTTTGTCT TTAATTCAAG CATGCTACGA CTCACAGTCG
GCATTCACAT GCGCACCGGC TGCCATTTAT TGTAATAACG CTCAGATGGG ACCCTATCAG
AGAACTGGGA AGAATGTGTA TGATATTCGT AAGGAATGTG ATGGTGGATC CTTGTGCTAT
AAGGACCTTG AATTCATCGA TACCTACTTA AATCAAAAGT TTGTTCAAGA TGCTTTGGGC
GCCGAGGTCG ATACCTATGA ATCTTGCAAT TTTGAAATCA ACAGAAACTT TTTATTTGCT
GGAGATTGGA TGAAACCTTA TCATGAACAT GTCAGCAGTC TCTTGAACAA AGGTTTGCCC
GTTTTGATTT ACGCAGGGGA CAAAGATTTC ATTTGCAACT GGTTGGGTAA TCGAGCATGG
ACTGATGTCT TGCCGTGGGT TGATGCTGAT GGTTTTGAAA AAGCCGAAGT CCAAGATTGG
TTGGTTAATG GAAGGAAGGC TGGTGAATTT AAGAACTATA GCAACTTCAC CTACCTAAGG
GTTTATGATG CTGGTCATAT GGCCCCATAT GATCAGCCAG AGAATTCTCA TGAAATGGTC
AATAGATGGA TATCCGGAGA CTTTAGCTTT CACTAG (配列番号11)
MILHTYIILS LLTIFPKAIG LSLQMPMALE ASYASLVEKA TLAVGQEIDA IQKGIQQGWL
EVETRFPTIV SQLSYSTGPK FAIKKKDATF WDFYVESQEL PNYRINENLK PIFNPYSWNG
NASIIYLDQP VNVGFSYSSS SVSNTVVAGE DVYAFLQLFF QHFPEYQTND FHIAGESYAG
HYIPVFADEI LSQKNRNFNL TSVLIGNGLT DPLTQYRYYE PMACGEGGAP SVLPADECEN
MLVTQDKCLS LIQACYDSQS AFTCAPAAIY CNNAQMGPYQ RTGKNVYDIR KECDGGSLCY
KDLEFIDTYL NQKFVQDALG AEVDTYESCN FEINRNFLFA GDWMKPYHEH VSSLLNKGLP
VLIYAGDKDF ICNWLGNRAW TDVLPWVDAD GFEKAEVQDW LVNGRKAGEF KNYSNFTYLR
VYDAGHMAPY DQPENSHEMV NRWISGDFSF H (配列番号12)
ATGCAATTGC GTCATTCCGT TGGATTGGCT ATCTTATCTG CCATAGCAGT CCAAGGATTG
CTAATTCCTA ACATTGAGTC ATTACCCAGC CAGTTTGGTG CTAATGGTGA CAGTGAACAA
GGTGTATTAG CCCACCATGG TAAACATCCT AAAGTTGATA TGGCTCACCA TGGAAAGCAT
CCTAAAATCG CTAAGGATTC CAAGGGACAC CCTAAGCTTT GCCCTGAAGC TTTGAAGAAG
ATGAAAGAAG GCCACCCTTC GGCTCCAGTC ATTACTACCC ATTCCGCTTC TAAAAACTTA
ATCCCTTACT CTTATATTAT AGTCTTCAAG AAGGGTGTCA CTTCAGAGGA TATCGACTTC
CACCGTGACC TTATCTCCAC TCTTCATGAA GAGTCTGTGA GCAAATTAAG AGAGTCAGAT
CCAAATCACT CATTTTTCGT TTCTAATGAG AATGGCGAAA CAGGTTACAC CGGTGACTTC
TCCGTTGGTG ACTTGCTCAA GGGTTACACC GGATACTTCA CGGATGACAC TTTAGAGCTT
ATCAGTAAGC ATCCAGCAGT TGCTTTCATT GAAAGGGATT CGAGAGTATT TGCCACCGAT
TTTGAAACTC AAAACGGTGC TCCTTGGGGT TTGGCCAGAG TCTCTCACAG AAAGCCTCTT
TCCCTAGGCA GCTTCAACAA GTACTTATAT GATGGAGCTG GTGGTGAAGG TGTTACTTCC
TATGTTATCG ATACAGGTAT CCACGTCACT CACAAAGAAT TCCAGGGTAG AGCATCTTGG
GGTAAGACCA TTCCAGCTGG AGACGTTGAT GACGATGGAA ACGGTCACGG AACTCACTGT
GCTGGTACCA TTGCTTCTGA AAGCTACGGT GTTGCCAAGA AGGCTAATGT TGTTGCCATC
AAGGTCTTGA GATCTAATGG TTCTGGTTCG ATGTCAGATG TTCTGAAGGG TGTTGAGTAT
GCCACCCAAT CCCACTTGGA TGCTGTTAAA AAGGGCAACA AGAAATTTAA GGGCTCTACC
GCTAACATGT CACTGGGTGG TGGTAAATCT CCTGCTTTGG ACCTTGCAGT CAATGCTGCT
GTTAAGAATG GTATTCACTT TGCCGTTGCA GCAGGTAACG AAAACCAAGA TGCTTGTAAC
ACCTCGCCAG CAGCTGCTGA GAATGCCATC ACCGTCGGTG CATCAACCTT ATCAGACGCT
AGAGCTTACT TTTCTAACTA CGGTAAATGT GTTGACATTT TCGCTCCAGG TTTAAACATT
CTTTCTACCT ACACTGGTTC GGATGACGCA ACTGCTACCT TGTCTGGTAC TTCAATGGCC
TCTCCTCACA TTGCTGGTCT GTTGACTTAC TTCCTATCAT TGCAGCCTGC TGCTGGATCT
CTGTACTCTA ACGGAGGATC TGAGGGTGTC ACACCTGCTC AATTGAAAAA GAACCTCCTC
AAGTATGCAT CTGTCGGAGT ATTAGAGGAT GTTCCAGAAG ACACTCCAAA CCTCTTGGTT
TACAATGGTG GTGGACAAAA CCTTTCTTCT TTCTGGGGAA AGGAGACAGA AGACAATGTT
GCTTCCTCCG ACGATACTGG TGAGTTTCAC TCTTTTGTGA ACAAGCTTGA ATCAGCTGTT
GAAAACTTGG CCCAAGAGTT TGCACATTCA GTGAAGGAGC TGGCTTCTGA ACTTATTTAG
(配列番号13)
MQLRHSVGLA ILSAIAVQGL LIPNIESLPS QFGANGDSEQ GVLAHHGKHP KVDMAHHGKH
PKIAKDSKGH PKLCPEALKK MKEGHPSAPV ITTHSASKNL IPYSYIIVFK KGVTSEDIDF
HRDLISTLHE ESVSKLRESD PNHSFFVSNE NGETGYTGDF SVGDLLKGYT GYFTDDTLEL
ISKHPAVAFI ERDSRVFATD FETQNGAPWG LARVSHRKPL SLGSFNKYLY DGAGGEGVTS
YVIDTGIHVT HKEFQGRASW GKTIPAGDVD DDGNGHGTHC AGTIASESYG VAKKANVVAI
KVLRSNGSGS MSDVLKGVEY ATQSHLDAVK KGNKKFKGST ANMSLGGGKS PALDLAVNAA
VKNGIHFAVA AGNENQDACN TSPAAAENAI TVGASTLSDA RAYFSNYGKC VDIFAPGLNI
LSTYTGSDDA TATLSGTSMA SPHIAGLLTY FLSLQPAAGS LYSNGGSEGV TPAQLKKNLL
KYASVGVLED VPEDTPNLLV YNGGGQNLSS FWGKETEDNV ASSDDTGEFH SFVNKLESAV
ENLAQEFAHS VKELASELI (SEQ 番号14)
いくつかのピキアノックアウト系統を、以下の方法で産生させた。ノックアウトされる5’末端遺伝子(200−500塩基対)を、5’遺伝子特異的プライマー、および選択マーカー発現カセット(例えば、KanMX)の5’末端と相補的な20bp配列を持つ3’遺伝子特異的プライマーを使って、PCR法でピキアゲノムDNAから増幅させた。ノックアウトされる3’末端遺伝子(200−500塩基対)を、KanMXの発現カセットの3’末端、および3’遺伝子特異的プライマーと相補的な20bp配列の5’遺伝子特異的プライマーを使って、PCR法でピキアゲノムDNAから増幅させた。別々のPCR法反応において、適当量の5’産物と3’産物、KanMX発現カセットを含むDNA、前回使用した5’と3’遺伝子特異的プライマーを加えて、ノックアウト遺伝子の5’と3’の相同領域に隣接するKanMX発現カセットを有するノックアウトカセットを作った。DNA断片を精製し、標準電気穿孔法方法を使ってピキアに形質転換した。組換え型細胞を、抗菌(例えば、KAN)を含むYPDプレート上で選択し、特異的プライマーを使用してPCR法で選別した。結果として得られたノックアウト系統をゲノム配列決定とサザンブロット法で確認した。
ピキア野生型株GS115から産生した異種ポリペプチド(配列番号1)をLC/MSで分析すると、複数の162Da質量増加アイソフォームが観察された。多重酵素消化とLC/MSを使ってさらなる分析を行うと実証するHSA部分で糖鎖形成が発生することが示され、エドマン分解法および炭水化物組成分析(データ示さず)を使ってその結果を再確認した。炭水化物組成分析により、これらの修飾はO−マンノース糖鎖形成によるものであることが確認された、この糖鎖形成はピキア・パストリス内で産生される一般的なタンパク質翻訳後修飾である。
いくつかのシャペロンタンパク質は、宿主細胞内の異種タンパク質と同時発現でき、異種タンパク質産生を増加させることができるだろう。酵母内の異種タンパク質と同時発現して異種タンパク質産生を増加させるシャペロンタンパク質の例を以下の表7に示す。
Claims (49)
- ピキア株において機能的遺伝子産物をコードする少なくとも1つの核酸配列および/または少なくとも1つの機能的遺伝子産物の発現に必要な少なくとも1つの核酸配列が遺伝子改変される遺伝子改変ピキア株であって、前記遺伝子産物が、前記遺伝子改変ピキア株においてタンパク質分解および/または糖鎖形成に関与するものである、遺伝子改変ピキア株。
- 以下の機能的遺伝子産物:PEP4、PRB1、YPS1、YPS2、YMP1、YMP2、YMP3、DAP2、GRH1、PRD1、YSP3、およびPRB3のうち少なくとも1つ、または前記遺伝子産物の発現をコードする少なくと1つの核酸配列が遺伝子改変される、請求項1に記載の遺伝子改変ピキア株。
- 以下の酵素および/または酵素タイプ:アルギニン/アラニン様アミノペプチダーゼ、アスパルチルプロテアーゼ、セリンプロテアーゼ、分泌アスパルチルプロテアーゼ、分泌セリンプロテアーゼ、メチロトローフ酵母プロテアーゼ、DPP IV様エンドペプチダーゼ、金属エンドペプチダーゼ、Prb 1様セリンプロテアーゼ、Prb 1セリンプロテアーゼ、空胞のプロテアーゼB様、ロイシン様アミノペプチダーゼ、CPY様カルボキシペプチダーゼおよび/またはマンノシルトランスフェラーゼのうち少なくとも1つを、野生株と比べて、その量を減少、除去および/または活性を低下させて産生する、請求項1または2に記載の遺伝子改変ピキア株。
- 機能的遺伝子産物または前記遺伝子産物の発現をコードする以下の核酸配列:OCH1、PMT1、PMT2、および/またはPMT4のうち少なくとも1つが遺伝子改変される、請求項1〜3のいずれか1項に記載の遺伝子改変ピキア株。
- 野生型X−33またはSMD1163の遺伝子改変形態である、請求項1〜4のいずれか1項に記載の遺伝子改変ピキア株。
- 野生型ピキア・パストリス、ピキア・フィンランディカ、ピキア・トレハロフィア、ピキア・コクラメ、ピキア・メンブラナエファシエンス、ピキア・メタノリカ、ピキア・ミヌタ(オガタ・エミヌタ、ピキア・リンドネリ)、ピキア・オプティアエ、ピキア・サーモトレランス、ピキア・サリクタリア、ピキア・ゲルカム、ピキア・ピジュペリ、ピキア・スティプティス、ピキア菌種の遺伝子改変形態である、請求項1〜5のいずれか1項に記載の遺伝子改変ピキア株。
- 機能的遺伝子産物または前記遺伝子産物の発現をコードする以下の核酸配列:PEP4、PRB1、YPS1、YPS2、YMP1、YMP2、YMP3、およびPMT4が遺伝子改変される、請求項1〜6のいずれか1項に記載の遺伝子改変ピキア株。
- 野生型株と比べて、量を減少、除去および/または活性を低下させた少なくとも1つのマンノシルトランスフェラーゼを産生する、請求項1〜7のいずれか1項に記載の遺伝子改変ピキア株。
- 以下の機能的遺伝子産物:配列番号4、配列番号6、配列番号8、配列番号10、および/または配列番号12のうち少なくとも1つ、または前記遺伝子産物の発現をコードする少なくとも1つの核酸配列が遺伝子改変される、請求項1から請求項8のいずれか1項に記載の遺伝子改変ピキア株。
- 少なくとも1つの異種ポリペプチドを発現することのできる少なくとも1つのポリヌクレオチドをさらに含んでなる、請求項1〜9のいずれか1項に記載の遺伝子改変ピキア株。
- 少なくとも1つの異種ポリペプチドを発現することのできる前記ポリヌクレオチドが、ベクターおよび/またはプラスミドからのエピソーム発現である、請求項10に記載の遺伝子改変ピキア株。
- 少なくとも1つの異種ポリペプチドを発現することのできる前記ポリヌクレオチドが、ピキアのゲノムに形質転換される、請求項11に記載の遺伝子改変ピキア株。
- 前記少なくとも1つの異種ポリペプチドが、少なくとも1つのGLP−1アゴニストを含んでなる、請求項10〜12のいずれか1項に記載の遺伝子改変ピキア株。
- 前記少なくとも1つのGLP−1アゴニストが、インクレチンのホルモン並びに/またはその断片、変異体および/もしくは抱合体、インクレチンのミメティック並びに/またはその断片、変異体および/もしくは抱合体からなる群から選択される、請求項13に記載の遺伝子改変ピキア株。
- 少なくとも1つの異種ポリペプチドが、GLP−1活性を有する、請求項10〜14のいずれか1項に記載の遺伝子改変ピキア株。
- 前記GLP−1活性を有する少なくとも1つのポリペプチドが、ヒト血清アルブミンと融合したヒトGLP−1の少なくとも1つの断片および/または変異体を含んでなる、請求項15に記載の遺伝子改変ピキア株。
- 前記GLP−1の少なくとも1つの断片および変異体が、GLP−1(7−36(A8G))を含んでなる、請求項16に記載の遺伝子改変ピキア株。
- 前記GLP−1の少なくとも1つの断片および変異体が、ヒト血清アルブミンと遺伝的に融合する、請求項17に記載の遺伝子改変ピキア株。
- GLP−1の少なくとも1つの断片および変異体が、ヒト血清アルブミンと直列に、かつ、遺伝的に融合する少なくとも2つのGLP−1(7−36(A8G))を含んでなる、請求項18に記載の遺伝子改変ピキア株。
- 前記少なくとも2つのGLP−1(7−36(A8G))が、ヒト血清アルブミンのN末端で遺伝的に融合する、請求項19に記載の遺伝子改変ピキア株。
- 前記異種ポリペプチドが、配列番号1を含んでなる、請求項10〜20のいずれか1項に記載の遺伝子改変ピキア株。
- 前記少なくとも1つの異種ポリペプチドが、少なくとも1つの抗原結合タンパク質、少なくとも1つの単一可変ドメイン、および/または少なくとも1つのドメイン抗体のうち1つ以上を含んでなる、請求項10〜21のいずれか1項に記載の遺伝子改変ピキア。
- 野生型ピキアと比べて、前記株が、前記株中で前記少なくとも1つの異種ポリペプチドのタンパク質分解の減少を示す、請求項10〜22のいずれか1項に記載の遺伝子改変ピキア株。
- 野生型ピキアと比べて、前記株が、前記株中で前記少なくとも1つの異種ポリペプチドの糖鎖形成の減少を示すか、糖鎖形成を示さない、請求項10〜23のいずれか1項に記載の遺伝子改変ピキア株。
- 異種ポリペプチドを産生する方法であって、請求項1〜24のいずれか1項に記載の遺伝子改変ピキアにおいて前記異種ポリペプチドを発現させることを含んでなる、方法。
- 請求項1〜25のいずれか1項に記載の遺伝子改変ピキアで産生される異種ポリペプチド。
- 遺伝子改変宿主細胞であって、前記遺伝子改変宿主細胞の野生型親は、配列番号4のアミノ酸1−865(配列番号15)と少なくとも60%の配列同一性を有するポリペプチドをコードする遺伝子を含み、前記遺伝子は、野生型宿主細胞と比べると、前記遺伝子産物が前記遺伝子改変の宿主細胞内で減少するか除去されるように前記宿主細胞のゲノム内で遺伝子改変される、遺伝子改変宿主細胞。
- 前記野生型親が、配列番号4の全体の長さに渡って少なくとも60%の配列同一性を有するポリペプチドをコードする遺伝子を含んでなる、請求項27に記載の遺伝子改変宿主細胞。
- 遺伝子改変宿主細胞であって、前記遺伝子改変宿主細胞の野生型親が、配列番号3と少なくとも60%の配列同一性を有する遺伝子を含み、前記遺伝子が、前記遺伝子改変宿主細胞のゲノム内で遺伝子改変される、遺伝子改変宿主細胞。
- 前記野生型親宿主細胞と比べると、プロテアーゼ活性が減少しているか除去されている、請求項27または29に記載の遺伝子改変宿主細胞。
- 酵母メチロトローフプロテアーゼ1活性が減少しているか除去されている、請求項27〜30に記載の遺伝子改変宿主細胞。
- ピキアである、請求項27〜31に記載の遺伝子改変宿主細胞。
- 配列番号3と少なくとも60%の配列同一性を有するポリヌクレオチドを含んでなる、単離されたポリヌクレオチド。
- 配列番号4と少なくとも60%の配列同一性を有する、単離されたポリペプチド。
- 配列番号5と少なくとも60%の配列同一性を有するポリヌクレオチドを含んでなる、単離されたポリヌクレオチド。
- 配列番号6と少なくとも60%の配列同一性を有する、単離されたポリペプチド。
- 配列番号7と少なくとも60%の配列同一性を有するポリヌクレオチドを含んでなる、単離されたポリヌクレオチド。
- 配列番号8と少なくとも60%の配列同一性を有する、単離されたポリペプチド。
- 配列番号9と少なくとも60%の配列同一性を有するポリヌクレオチドを含んでなる、単離されたポリヌクレオチド。
- 配列番号10と少なくとも60%の配列同一性を有する、単離されたポリペプチド。
- 配列番号11と少なくとも60%の配列同一性を有するポリヌクレオチドを含んでなる、単離されたポリヌクレオチド。
- 配列番号12と少なくとも60%の配列同一性を有する、単離されたポリペプチド。
- 遺伝子改変ピキア株であって、前記ピキアの野生型株のゲノムが、配列番号3、5、7から選択される遺伝子と少なくとも85%の配列同一性を有する遺伝子を含み、配列番号3、5、および7と少なくとも85%の配列同一性を有する前記遺伝子が、欠失、変異、または破壊された時、前記遺伝子改変ピキア株が、前記野生型株よりも前記破壊された遺伝子の遺伝子産生物をより少なく産生する、遺伝子改変ピキア株。
- 前記ピキアの野生型株のゲノムが、配列番号3と少なくとも85%の配列同一性を有する遺伝子を含み、配列番号3が、欠失、変異、または破壊された時、前記遺伝子改変ピキア株が、前記野生型株よりも配列番号4をより少なく産生する、請求項43に記載の遺伝子改変ピキア株。
- 前記野生型株よりも分泌セリンプロテアーゼ活性をより少なく産生する、請求項44に記載の遺伝子改変ピキア株。
- 前記ピキアの野生型株のゲノムが、配列番号5と少なくとも85%の配列同一性を有する遺伝子を含み、配列番号5が、欠失、変異、または破壊された時、前記遺伝子改変ピキア株が、前記野生型株よりも配列番号6をより少なく産生する、請求項43に記載の遺伝子改変ピキア株。
- 前記野生型株よりもアルギニン/アラニンアミノペプチダーゼ様活性をより少なく産生する、請求項46に記載の遺伝子改変ピキア株。
- 前記ピキアの野生型株のゲノムが、配列番号7と少なくとも85%の配列同一性を有する遺伝子を含み、配列番号7が、欠失、変異、または破壊された時、前記遺伝子改変ピキア株が、前記野生型株よりも配列番号8をより少なく産生する、請求項43に記載の遺伝子改変ピキア株。
- 前記野生型株よりもロイシン/アミノペプチダーゼ様活性をより少なく産生する、請求項48に記載の遺伝子改変ピキア株。
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US10975400B2 (en) | 2013-02-07 | 2021-04-13 | Tianjin Institute Of Industrial Biotechnology, Chinese Academy Of Sciences | 5-aminolevulinic acid high-yield bacterial strain, preparation method and use thereof |
JP2021524227A (ja) * | 2018-05-17 | 2021-09-13 | ボルト スレッズ インコーポレイテッド | 組換えタンパク質の分泌を改善するためのsec改変株 |
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CA2753584A1 (en) | 2010-09-02 |
EP2401357A4 (en) | 2012-09-19 |
EP2401357B1 (en) | 2015-03-25 |
EP2921551A2 (en) | 2015-09-23 |
WO2010099195A1 (en) | 2010-09-02 |
EP2921551A3 (en) | 2015-12-02 |
US20120142895A1 (en) | 2012-06-07 |
US10392625B2 (en) | 2019-08-27 |
ES2539378T3 (es) | 2015-06-30 |
JP2015133962A (ja) | 2015-07-27 |
EP2401357A1 (en) | 2012-01-04 |
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