Patents by Inventor Alexander Pisarchik

Alexander Pisarchik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240060986
    Abstract: A Method for selecting peptide inhibitors based on protein cytotoxicity by inserting a cytotoxic target protein and a library of peptide variants in a host cell, expressing the cytotoxic protein and peptide variants in the host cell, and identifying the peptide variants that block the cytotoxic target protein. The cytotoxic target protein is formed by synthesizing a cytotoxic protein gene and cloning the cytotoxic protein gene with an expression vector in a host cell. The library of peptide variants is formed by synthesizing a peptide library or building a peptide library using degenerate oligos and by cloning the peptide library with an expression vector in the host cell. Peptide variants are identified by identifying growing clones through growth on solid media or in a liquid culture. Both cyclic and linear peptides are produced. Intracellular biasing libraries of peptide variants produce inhibitor peptides with lower toxicity and higher stability compared to current methods.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 22, 2024
    Inventor: Alexander Pisarchik
  • Publication number: 20230059411
    Abstract: The invention relates to compounds, compositions, and methods for derepressing RE1 silencing transcription factor (REST) target genes are provided. In particular, a peptide having the sequence TEDLEPPEPPLPKEN (SEQ. ID NO: 1) and EDLEPPEP-PLPK (SEQ. ID NO: 15), or the reversed sequences made of D-amino acids (retro inverted, RI) nekplppeppeldet (SEQ ID NO: 16) and kplppeppelde (SEQ ID NO: 17), are disclosed for inhibiting REST activity.
    Type: Application
    Filed: November 20, 2020
    Publication date: February 23, 2023
    Inventors: Edmund NESTI, Alexander PISARCHIK
  • Publication number: 20220204959
    Abstract: The present invention provides protease variants, compositions comprising protease variants, and methods of using such protease variants and compositions.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 30, 2022
    Inventors: AYROOKARAN J. POULOSE, JOSHUA ROY BASLER, LUIS G. CASCAO-PEREIRA, JAMES T. KELLIS, JR., ALEXANDER PISARCHIK, DANIEL ESTEBAN TORRES PAZMINO, DAVID A. ESTELL
  • Publication number: 20210071113
    Abstract: This invention relates to fabric and home care products comprising one or more cold water proteases and processes for making and using such products. Such compositions provide improved cleaning and freshness. Such cold water proteases may be derived from parent enzymes, including BPN? subtilisin and subtilisin derived from Bacillus lentus, by substitution, insertion and/or deletion of one or more of the parent enzymes' amino acids.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Inventors: Philip Frank SOUTER, Glenn Steven WARD, Viktor Yuryevich ALEKSEYEV, Joshua Roy BASLER, Luis Gustavo CASCAO-PEREIRA, David A ESTELL, Ayrookaran J Poulose, James T KELLIS, Jr., Alexander PISARCHIK, Daniel TORRES-PAZMINO
  • Patent number: 10900000
    Abstract: This invention relates to fabric and home care products comprising one or more cold water proteases and processes for making and using such products. Such compositions provide improved cleaning and freshness. Such cold water proteases may be derived from parent enzymes, including BPN? subtilisin and subtilisin derived from Bacillus lentus, by substitution, insertion and/or deletion of one or more of the parent enzymes' amino acids.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 26, 2021
    Assignee: The Procter & Gamble Company
    Inventors: Philip Frank Souter, Glenn Steven Ward, Viktor Yuryevich Alekseyev, Joshua Roy Basler, Luis Gustavo Cascao-Pereira, David A Estell, Ayrookaran J Poulose, James T Kellis, Jr., Alexander Pisarchik, Daniel Torres-Pazmino
  • Publication number: 20200299618
    Abstract: The present invention provides consumer products comprising a serine protease variant, more specifically subtilisin variants produced there from. Specifically, the present invention provides consumer products comprising a serine protease variant, more specifically a subtilisin variant having one or more substitutions as compared to a reference serine protease. In addition, the present invention provides methods of making such compositions and methods of treating surfaces, particularly fabric surfaces comprising contacting a surface with an aqueous liquor comprising a serine protease variant, more specifically subtilisin variants and an adjunct material.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 24, 2020
    Inventors: Philip Frank SOUTER, Euan John MAGENNIS, Glenn Steven WARD, Neelam S. AMIN, Katherine AUGUSTYN, Joshua R. BASLER, Luis Gustavo CASCAO-PEREIRA, Katherine D. COLLIER, Edward M. CONCAR, David A. ESTELL, James T. KELLIS, Alexander PISARCHIK, Ayrookaran Joseph POULOSE, Jian YAO
  • Publication number: 20200190497
    Abstract: The present invention provides variant subtilisins and compositions comprising at least one variant subtilisin set forth herein, as well as methods for using these variants and compositions. In some embodiments, the present invention provides variant proteases suitable for laundry cleaning applications.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 18, 2020
    Inventors: LUIS G CASCAO-PEREIRA, JAMES T. KELLIS, JR., VIKTOR YURYEVICH ALEKSEYEV, ALEXANDER PISARCHIK
  • Publication number: 20200080069
    Abstract: The present invention provides protease variants, compositions comprising protease variants, and methods of using such protease variants and compositions.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 12, 2020
    Inventors: Ayrookaran J. Poulose, Joshua Roy Basler, Luis G. Cascao-Pereira, James T. Kellis, JR., Alexander Pisarchik, Daniel Esteban Torres Pazmino, David A. Estell
  • Patent number: 10519433
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 31, 2019
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Nadia Kadi, Adriana L. Botes, Mihai Luchian Azoitei, Yih-En A. Ban, Daniela Grabs-Röthlisberger, Alexander Pisarchik, Alexandre Zanghellini, Eric Althoff
  • Publication number: 20190300871
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Application
    Filed: January 2, 2019
    Publication date: October 3, 2019
    Applicant: INVISTA North America S.à.r.l.
    Inventors: Eric ALTHOFF, Nadia KADI, Mihai AZOITEI, Yih-En A. BAN, Daniela GRABS-RÖTHLISBERGER, Alexander PISARCHIK, Alexandre ZANGHELLINI, Adriana L. BOTES
  • Patent number: 10214736
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 26, 2019
    Assignee: INVISTA North America S.à.r.l.
    Inventors: Eric Althoff, Nadia Kadi, Mihai Luchian Azoitei, Yih-En A. Ban, Daniela Grabs-Röthlisberger, Alexander Pisarchik, Alexandre Zanghellini, Adriana L. Botes
  • Publication number: 20180223269
    Abstract: The present invention provides variant subtilisins and compositions comprising at least one variant subtilisin set forth herein, as well as methods for using these variants and compositions. In some embodiments, the present invention provides variant proteases suitable for laundry cleaning applications.
    Type: Application
    Filed: August 15, 2017
    Publication date: August 9, 2018
    Inventors: LUIS G. CASCAO-PEREIRA, James T. Kellis, JR., Viktor Yuryevich Alekseyev, Alexander Pisarchik
  • Publication number: 20180171268
    Abstract: This invention relates to fabric and home care products comprising one or more cold water proteases and processes for making and using such products. Such compositions provide improved cleaning and freshness. Such cold water proteases may be derived from parent enzymes, including BPN? subtilisin and subtilisin derived from Bacillus lentus, by substitution, insertion and/or deletion of one or more of the parent enzymes' amino acids.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 21, 2018
    Inventors: Philip Frank Souter, Glenn Steven Ward, Viktor Yuryevich Alekseyev, Joshua Roy Basler, Luis Gustavo Cascao-Pereira, David A Estell, Ayrookaran J Poulose, James T Kellis, JR., Alexander Pisarchik, Daniel Torres-Pazmino
  • Publication number: 20180030431
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Application
    Filed: May 12, 2017
    Publication date: February 1, 2018
    Applicant: INVISTA North America S.A.R.L.
    Inventors: Eric ALTHOFF, Nadia KADI, Mihai Luchian AZOITEI, Yih-En A. BAN, Daniela GRABS-RÖTHLISBERGER, Alexander PISARCHIK, Alexandre ZANGHELLINI, Adriana L. BOTES
  • Patent number: 9856466
    Abstract: The present invention provides serine protease variants, more specifically subtilisin variants produced there from. Specifically, the present invention provides serine protease variants, more specifically subtilisin variants having one or more substitutions as compared to a reference serine protease. In addition, the present invention provides compositions comprising these serine protease variants, more specifically subtilisin variants. In some embodiments, the present invention provides cleaning compositions comprising at least one of these serine protease variants, more specifically subtilisin variants.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 2, 2018
    Assignee: DANISCO US INC.
    Inventors: Neelam S. Amin, Katherine Augustyn, Joshua R. Basler, Luis G. Cascao-Pereira, Katherine D. Collier, Edward M. Concar, David A. Estell, James T. Kellis, Jr., Euan John Magennis, Alexander Pisarchik, Ayrookaran J. Poulose, Philip Frank Souter, Glenn Steven Ward, Jian Yao
  • Patent number: 9683227
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: June 20, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Eric Althoff, Nadia Kadi, Mihai Luchian Azoitei, Yih-En A Ban, Daniela Grabs-Röthlisberger, Alexander Pisarchik, Alexandre Zanghellini, Adriana L. Botes
  • Publication number: 20160362641
    Abstract: The present invention provides consumer products comprising a serine protease variant, more specifically subtilisin variants produced there from. Specifically, the present invention provides consumer products comprising a serine protease variant, more specifically a subtilisin variant having one or more substitutions as compared to a reference serine protease. In addition, the present invention provides methods of making such compositions and methods of treating surfaces, particularly fabric surfaces comprising contacting a surface with an aqueous liquor comprising a serine protease variant, more specifically subtilisin variants and an adjunct material.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 15, 2016
    Inventors: Philip Frank SOUTER, Euan John MAGENNIS, Glenn Steven WARD, Neelam S. AMIN, Katherine AUGUSTYN, Joshua R. BASLER, Luis Gustavo CASCAO-PEREIRA, Katherine D. COLLIER, Edward M. CONCAR, David A. ESTELL, James T. KELLIS, Alexander PISARCHIK, Ayrookaran Joseph POULOSE, Jian YAO
  • Publication number: 20160304852
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Application
    Filed: August 24, 2015
    Publication date: October 20, 2016
    Applicant: INVISTA S.a.r.l.
    Inventors: Adriana L. Botes, Nadia Kadi, Mihai Luchian Azoitei, Yih-En A. Ban, Daniela Grabs-Röthlisberger, Alexander Pisarchik, Alexandre Zanghellini, Eric Althoff
  • Publication number: 20160251645
    Abstract: The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided.
    Type: Application
    Filed: February 29, 2016
    Publication date: September 1, 2016
    Applicant: INVISTA North America S.a.r.l.
    Inventors: ADRIANA L. BOTES, Nadia Kadi, Mihai Luchian Azoitei, Yih-En A. Ban, Daniela Grabs-Röthlisberger, Alexander Pisarchik, Alexandre Zanghellini, Eric Althoff
  • Publication number: 20160083710
    Abstract: The present invention provides protease variants, compositions comprising protease variants, and methods of using such protease variants and compositions.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 24, 2016
    Inventors: Joshua Roy Basler, Luis Gustavo Cacao-Pereira, David A. Estell, James T. Kellis, Alexander Pisarchik, Ayrookaran J. Poulose, Daniel Torres-Pazmino