C07K PEPTIDES (peptides in foodstuffs A23; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs A23J; preparations for medicinal purposes A61K; peptides containing beta-lactam rings C07D; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, C07D; ergot alkaloids of the cyclic peptide type C07D519/02; macromolecular compounds having statistically distributed amino acid units in their molecules, i.e. when the preparation does not provide for a specific; but for a random sequence of the amino acid units, homopolyamides and block copolyamides derived from amino acids C08G69/00; macromolecular products derived from proteins C08H1/00; preparation of glue or gelatine C09H; single cell proteins, enzymes C12N; genetic engineering processes for obtaining peptides C12N15/00; compositions for measuring or testing processes involving enzymes C12Q; investigation or analysis of biological material G01N33/00)
Introduced: January 1985
Description
Peptides and their preparation, purification, and characterization methods, including polypeptides, proteins, and enzyme substrates. This subclass covers synthesis routes (chemical and biological), isolation techniques, structural modifications, and analytical procedures for peptide compounds. It encompasses both naturally occurring peptides and synthetic derivatives, but excludes living organisms and their cultivation, which fall under biotechnology classes.
Title
Titles differ between systems:
IPC: PEPTIDES
CPC: PEPTIDES (peptides in foodstuffs A23; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs A23J; preparations for medicinal purposes A61K; peptides containing beta-lactam rings C07D; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, C07D; ergot alkaloids of the cyclic peptide type C07D519/02; macromolecular compounds having statistically distributed amino acid units in their molecules, i.e. when the preparation does not provide for a specific; but for a random sequence of the amino acid units, homopolyamides and block copolyamides derived from amino acids C08G69/00; macromolecular products derived from proteins C08H1/00; preparation of glue or gelatine C09H; single cell proteins, enzymes C12N; genetic engineering processes for obtaining peptides C12N15/00; compositions for measuring or testing processes involving enzymes C12Q; investigation or analysis of biological material G01N33/00)
Full Title
Full titles differ between systems:
PEPTIDES
PEPTIDES (peptides in foodstuffs A23; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs A23J; preparations for medicinal purposes A61K; peptides containing beta-lactam rings C07D; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, C07D; ergot alkaloids of the cyclic peptide type C07D519/02; macromolecular compounds having statistically distributed amino acid units in their molecules, i.e. when the preparation does not provide for a specific; but for a random sequence of the amino acid units, homopolyamides and block copolyamides derived from amino acids C08G69/00; macromolecular products derived from proteins C08H1/00; preparation of glue or gelatine C09H; single cell proteins, enzymes C12N; genetic engineering processes for obtaining peptides C12N15/00; compositions for measuring or testing processes involving enzymes C12Q; investigation or analysis of biological material G01N33/00)
Additional Content IPC
Glossary
Amino acid Amino acids compounds in which at least one amino acid group and at least one carboxylic group are bound to the same carbon skeleton and the nitrogen atom of the amino group may form a ring. Normal peptide link normal peptide links a link between an alpha-amino group of an amino acid and the carboxylic group in position 1 of another alpha-amino acid. Abnormal peptide link abnormal peptide links a link where at least one of the linked amino acids is not an alpha-amino acid or a link formed by at least one carboxyl or amino group being a part of the side chain of an alpha-amino acid. Peptides peptide compounds containing at least two amino acid units, which are bound through at least one normal peptide link, including oligopeptides, polypeptides and proteins, where '''(i) Linear peptides linear peptides may comprise rings formed through S-S bridges, or through an hydroxy or a mercapto group of an hydroxy- or a mercapto-amino acid and the carboxyl group of another amino acid (e.g. peptide lactones) but do not comprise rings which are formed only through peptide links; '''(ii) Cyclic peptides cyclic peptides peptides comprising at least one ring formed only through peptide links; the cyclisation may occur only through normal peptide links or through abnormal peptide links, e.g. through the 4-amino group of 2,4-diamino-butanoic acid. Thus, cyclic compounds in which at least one link in the ring is a non-peptide link are considered as "linear peptides"; '''(iii) Depsipeptides depsipeptides compounds containing a sequence of at least two alpha-amino acids and at least one alpha-hydroxy carboxylic acid, which are bound through at least one normal peptide link and ester links, derived from the hydroxy carboxylic acids, where ''''''(a) Linear depsipeptides linear depsipeptides may comprise rings formed through S-S bridges, or through an hydroxy or a mercapto group of an hydroxy- or mercapto-amino acid and the carboxyl group of another amino- or hydroxy-acid but do not comprise rings formed only through peptide or ester links derived from hydroxy carboxylic acids, e.g. Gly-Ala-Gly-OCH 2 CO 2 H and Gly-OCH 2 CO-Ala-Gly are considered as "linear depsipeptides", but HOCH 2 CO-Gly-Ala-Gly does not contain an ester link, and is thus a derivative of Gly-Ala-Gly which is covered by ; ''''''(b) Cyclic depsipeptides cyclic depsipeptides are peptides containing at least one ring formed only through peptide or ester links - derived from hydroxy carboxylic acids -, e.g. Gly-Ala-Gly-OCH 2 CO; '''(iv) hybrid peptides hybrid peptides are peptides produced through fusion or covalent binding of two or more heterologous peptides. Immunoglobulins immunoglobulin proteins produced by B cells, made up of two identical heavy and two identical light chains, held together by interchain disulfide bonds. Antibodies immonuglobins which interact with antigens. Monoclonal antibodies antibodies produced from a single clone of cells, and reactive with a single antigen. Polyclonal antibodies antibodies produced by a variety of cell clones, and reactive with a variety of antigens or with a variety of antigenic determinants (epitopes) on a single antigen.
Limiting references
Peptides containing ß-lactam rings Cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones Ergot alkaloids of the cyclic peptide type Enzymes Genetic engineering processes for obtaining peptides Preparation of peptides and proteins by fermentation or enzyme-using processes Electrolytic production of organic compounds
Of 15 combined children, 11 exist in both systems.
4 codes are CPC-only extensions.
Note: 4 CPC extensions are marked as secondary classification only.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C07K 1/00 General methods for the preparation of peptides since 1985 +2 CPC IPC+CPC Available in IPC and CPC
- C07K 11/00 Depsipeptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof since 1985 IPC+CPC Available in IPC and CPC
- C07K 14/00 Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof since 1995 +1 CPC IPC+CPC Available in IPC and CPC
- C07K 16/00 Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies since 1995 +1 CPC IPC+CPC Available in IPC and CPC
- C07K 17/00 Carrier-bound or immobilised peptides (carrier-bound or immobilised enzymes C12N11/00); Preparation thereof since 1985 IPC+CPC Available in IPC and CPC
- C07K 2/00 Peptides of undefined number of amino acids; Derivatives thereof since 1995 IPC+CPC Available in IPC and CPC
- C07K 2299/00 Coordinates from 3D structures of peptides, e.g. proteins or enzymes 2nd only CPC only CPC only
- C07K 4/00 Peptides having up to 20 amino acids in an undefined or only partially defined sequence; Derivatives thereof since 1995 IPC+CPC Available in IPC and CPC
- C07K 5/00 Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof since 1985 IPC+CPC Available in IPC and CPC
- C07K 7/00 Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof since 1985 IPC+CPC Available in IPC and CPC
- C07K 9/00 Peptides having up to 20 amino acids, containing saccharide radicals and having a fully defined sequence; Derivatives thereof since 1985 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 12,697
- ROCHE CH 11,347
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
- NOVARTIS CH 9,356
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
- BRISTOL-MYERS SQUIBB COMPANY US 7,320
- LG CHEM KR 7,245
- REGENERON PHARMACEUTICALS US 6,816
- HARVARD UNIVERSITY US 6,190
- GENENTECH US 5,922
Top Applicants (CPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- ROCHE CH 12,683
- NOVARTIS CH 10,775
- CHINESE ACADEMY OF SCIENCES 10,619
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
- REGENERON PHARMACEUTICALS US 8,426
- BRISTOL-MYERS SQUIBB COMPANY US 7,979
- LG CHEM KR 7,978
- HARVARD UNIVERSITY US 7,706
- UNIVERSITY OF CALIFORNIA US 7,455
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219