C
SECTION C — CHEMISTRY; METALLURGY
 C

Note(s)

In section C, the definitions of groups of chemical elements are as follows:

  • Alkali metals: Li, Na, K, Rb, Cs, Fr
  • Alkaline earth metals: Ca, Sr, Ba, Ra
  • Lanthanides: elements with atomic numbers 57 to 71 inclusive
  • Rare earths: Sc, Y, Lanthanides
  • Actinides: elements with atomic numbers 89 to 103 inclusive
  • Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
  • Halogens: F, Cl, Br, I, At
  • Noble gases: He, Ne, Ar, Kr, Xe, Rn
  • Platinum group: Os, Ir, Pt, Ru, Rh, Pd
  • Noble metals: Ag, Au, Platinum group
  • Light metals: alkali metals, alkaline earth metals, Be, Al, Mg
  • Heavy metals: metals other than light metals
  • Iron group: Fe, Co, Ni
  • Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens
  • Metals: elements other than non-metals
  • Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  
CHEMISTRY
 C07
ORGANIC CHEMISTRY (such compounds as the oxides, sulphides, or oxysulphides of carbon, cyanogen, phosgene, hydrocyanic acid or salts thereof C01; macromolecular compounds C08; dyes C09; fermentation products C12; fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture C12P; production of organic compounds by electrolysis or electrophoresis C25B 3/00, C25B 7/00)  [2]
 C07

Note(s)

  1. In this class, the following term is used with the meaning indicated: [4]
    • "preparation" covers purification, separation, stabilisation or use of additives, unless a separate place is provided therefor. [4]
  2. In this class, in the absence of an indication to the contrary, and with the exception referred to below, a compound is classified in the last appropriate place, e.g. a compound containing an acyclic chain and a heterocyclic ring is classified only as a heterocyclic compound, and a steroid is classified only as a cyclopentanophenanthrene compound. In general, and in the absence of an indication to the contrary (such as groups C07C 59/58, C07C 59/70), the terms "acyclic" and "aliphatic" are used to describe compounds in which there is no ring; and, if a ring were present, the compound would be taken by the "last place" rule to a later group for cycloaliphatic or aromatic compounds, if such a group exists. Where a compound or an entire group of compounds exists in tautomeric forms, it is classified as though existing in the form which is classified last in the system, unless the other form is specifically mentioned earlier in the system.
  3. Inventions dealing with chemical compounds and their preparation are classified in the groups for the type of compound prepared. The processes of preparation should also be classified in the groups for the types of reaction employed when such groups exist. General processes for the preparation of a class of compounds falling into more than one main group are classified in the groups for the processes employed, when such groups exist. The compounds prepared may also be classified in the groups for the types of compound prepared.
  4. Anhydrides and halides of carboxylic acids are classified as the relevant acids unless otherwise indicated. Salts of a compound, unless specifically provided for, are classified as that compound, e.g. aniline hydrochloride is classified as containing carbon, hydrogen and nitrogen only (in C07C 87/52), sodium malonate is classified as malonic acid (in C07C 55/08), and a mercaptide is classified as the mercaptan. Metal chelates are dealt with in the same way. Similarly, metal alcoholates and metal phenates are classified in subclass C07C and not in subclass C07F, the alcoholates in C07C 31/28-C07C 31/32 and the phenates as the corresponding phenols in C07C 39/235 or C07C 39/44. Salts or adducts formed between two or more organic compounds are classified according to all compounds forming the salts or adducts. [2]
 C07K
PEPTIDES; PROTEINS (protein food compositions A23; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs A23J; preparations for medicinal purposes A61K; peptides containing -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 C07D 519/02; macromolecular compounds having statistically distributed aminoacid units in their molecules, i.e. when the preparation does not provide for a specific, but for a random sequence of the aminoacid units, homopolyamides and block copolyamides derived from aminoacids C08G 69/00; macromolecular products derived from proteins C08H 1/00; preparation of glue or gelatine C09H; single cell proteins, enzymes C12N; compositions for measuring or testing processes involving enzymes C12Q; investigation or analysis of biological material G01N 33/00)  [4]
 C07K

Note(s)

In this subclass, the following terms or expressions are used with the meanings indicated: [4]

  • "aminoacids" are compounds in which at least one amino group and at least one carboxyl group are bound to the same carbon skeleton and the nitrogen atom of the amino group may form part of a ring; [4]
  • "normal peptide link" is one between an a-amino group of an aminoacid and the carboxyl group — in position 1 — of another a-aminoacid; [4]
  • "abnormal peptide link" is one between a non-a-amino group of an aminoacid and the carboxyl group — in position 1 — of an a-aminoacid, or between an a-amino group of one aminoacid and the carboxyl group — not in position 1 — of another aminoacid; [4]
  • "peptides" are compounds containing a sequence of 2 to 100 aminoacid units, which are bound through at least one normal peptide link, where [4]
    1. "linear peptides" may comprise rings formed through S—S bridges, or through an hydroxy or a mercapto group of an hydroxy- or a mercapto-aminoacid and the carboxyl group of another aminoacid (e.g. peptide lactones) but do not comprise rings which are formed only through peptide links; [4]
    2. "cyclic peptides" are 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"; [4]
  • "depsipeptides" are compounds containing a sequence of at least two a-aminoacids and at least one a-hydroxy carboxylic acid, which are bound through at least one normal peptide link and ester links, derived from the hydroxy carboxylic acids, the total number of units in the sequence being 4 to 100, where [4]
    1. "linear depsipeptides" may comprise rings formed through S—S bridges, or through an hydroxy or a mercapto group of an hydroxy-, or mercapto-aminoacid 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-OCH2CO2H and Gly-OCH2CO-Ala-Gly are considered as "linear depsipeptides", but HOCH2CO-Gly-Ala-Gly does not contain an ester link, and is thus a derivative of Gly-Ala-Gly which is covered by C07K 5/08[4]
    2. "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-OCH2CO; [4]
  • "proteins" are compounds containing an aminoacid sequence of more than 100 aminoacids, at least two of which are different, bound mostly through normal peptide links. [4]

 C07K 1/00
Preparation of peptides  [4]
 C07K 1/02
·  in solution  [4]
 C07K 1/04
·  on carriers  [4]
 C07K 1/06
·  using protecting groups or activating agents  [4]
 C07K 1/08
·  ·  using activating agents  [4]
 C07K 1/10
·  using coupling agents  [4]
 C07K 1/12
·  by hydrolysis  [4]
 C07K 1/14
·  Separation; Purification  [4]
 C07K 3/00
Preparation of proteins  [4]
 C07K 3/02
·  by extraction from natural sources  [4]
 C07K 3/04
·  by chemical synthesis  [4]
 C07K 3/06
·  ·  using coupling agents  [4]
 C07K 3/08
·  by chemical modification of other proteins  [4]
 C07K 3/10
·  ·  by hydrolysis  [4]
 C07K 3/12
·  Separation; Purification  [4]
 C07K 3/14
·  ·  by electrophoresis  [4]
 C07K 3/16
·  ·  ·  Isoelectric focusing  [4]
 C07K 3/18
·  ·  by selective absorption processes  [4]
 C07K 3/20
·  ·  ·  Chromatography  [4]
 C07K 3/22
·  ·  ·  Ion-exchange  [4]
 C07K 3/24
·  ·  by precipitation  [4]
 C07K 3/26
·  ·  by ultra-filtration  [4]
 C07K 3/28
·  by a combination of two or more processes of different types  [4]
 C07K 5/00
Peptides containing up to four aminoacids in a fully defined sequence; Derivatives thereof  [4]
 C07K 5/02
·  containing at least one abnormal peptide link  [4]
 C07K 5/04
·  containing only normal peptide links  [4]
 C07K 5/06
·  ·  Dipeptides  [4]
 C07K 5/08
·  ·  Tripeptides  [4]
 C07K 5/10
·  ·  Tetrapeptides  [4]
 C07K 5/12
·  ·  Cyclic peptides  [4]
 C07K 7/00
Peptides containing 5 to 100 aminoacids in a fully defined sequence of aminoacids; Derivatives thereof  [4]
 C07K 7/00

Note(s)

In this group, it is desirable to add, in conformity with paragraph 83 of the Guide, after the double oblique stroke, the indexing codes of group C07K 99/00 (see Note (1) before the title of group C07K 99/00). [4]

 C07K 7/02
·  Linear peptides containing at least one abnormal peptide link  [4]
 C07K 7/04
·  Linear peptides containing only normal peptide links  [4]
 C07K 7/06
·  ·  containing 5 to 11 aminoacids  [4]
 C07K 7/08
·  ·  containing 12 to 20 aminoacids  [4]
 C07K 7/10
·  ·  containing more than 20 aminoacids  [4]
 C07K 7/12
·  ·  Enkephalins; Related peptides  [4]
 C07K 7/14
·  ·  Angiotensins; Related peptides  [4]
 C07K 7/16
·  ·  Oxytocins; Vasopressins; Related peptides  [4]
 C07K 7/18
·  ·  Kallidins; Bradykinins; Related peptides  [4]
 C07K 7/20
·  ·  L-H releasing-inhibiting factor; Related peptides  [4]
 C07K 7/22
·  ·  Eledoisins; Related peptides  [4]
 C07K 7/24
·  ·  Melanotropins; Related peptides  [4]
 C07K 7/26
·  ·  Somatostatins; Related peptides  [4]
 C07K 7/28
·  ·  Gramicidins A, B, D; Related peptides  [4]
 C07K 7/30
·  ·  Gastrins; Related peptides  [4]
 C07K 7/32
·  ·  Secretins; Related peptides  [4]
 C07K 7/34
·  ·  Glucagons; Related peptides  [4]
 C07K 7/36
·  ·  Calcitonins; Related peptides  [4]
 C07K 7/38
·  ·  Corticotropins; Related peptides  [4]
 C07K 7/40
·  ·  Insulins; Related peptides  [4]
 C07K 7/42
·  ·  ·  Metal complexes, e.g. Zn-insulin  [4]
 C07K 7/44
·  ·  Endorphins; Related peptides  [4]
 C07K 7/46
·  ·  Lipotropins; Related peptides  [4]
 C07K 7/48
·  ·  Thymopoietins; Related peptides  [4]
 C07K 7/50
·  Cyclic peptides containing at least one abnormal peptide link  [4]
 C07K 7/52
·  ·  with only normal peptide links in the ring  [4]
 C07K 7/54
·  ·  with at least one abnormal peptide link in the ring  [4]
 C07K 7/56
·  ·  ·  the cyclisation not occurring through 2,4-diamino-butanoic acid  [4]
 C07K 7/58
·  ·  ·  ·  Bacitracins; Related peptides  [4]
 C07K 7/60
·  ·  ·  the cyclisation occurring through the 4-amino group of 2,4-diamino-butanoic acid  [4]
 C07K 7/62
·  ·  ·  ·  Polymyxins; Related peptides  [4]
 C07K 7/64
·  Cyclic peptides containing only normal peptide links  [4]
 C07K 7/66
·  ·  Gramicidins S, C; Tyrocidins A, B, C; Related peptides  [4]
 C07K 9/00
Peptides containing saccharide radicals and having a fully defined sequence of aminoacids  [4]
 C07K 11/00
Depsipeptides  [4]
 C07K 11/02
·  cyclic, e.g. valinomycins  [4]
 C07K 13/00
Proteins having a fully defined sequence of aminoacids; Derivatives thereof  [4]
 C07K 15/00
Peptides or proteins having an unknown or only partially known sequence of aminoacids; Derivatives thereof  [4]
 C07K 15/00

Note(s)

In this group, viruses, undifferentiated plant or animal cells, protozoa and unicellular algae are considered as micro-organisms. [4]

 C07K 15/02
·  characterised by origin  [4]
 C07K 15/04
·  ·  Proteins from micro-organisms  [4]
 C07K 15/06
·  ·  Proteins from mammals or birds  [4]
 C07K 15/08
·  ·  Proteins from animals other than mammals or birds  [4]
 C07K 15/10
·  ·  Proteins from plants  [4]
 C07K 15/12
·  characterised by partial structures  [4]
 C07K 15/14
·  ·  Glycoproteins  [4]
 C07K 15/16
·  ·  Lipoproteins  [4]
 C07K 15/18
·  ·  Nucleoproteides  [4]
 C07K 15/20
·  ·  Scleroproteins  [4]
 C07K 15/22
·  ·  Chromoproteins; Metal proteides  [4]
 C07K 15/24
·  ·  Phosphoproteins  [4]
 C07K 15/26
·  Interferons  [4]
 C07K 17/00
Carrier-bound or immobilised peptides or proteins (carrier-bound or immobilised enzymes C12N 11/00); Preparation thereof  [4]
 C07K 17/02
·  Peptides or proteins being immobilised on, or in, an organic carrier  [4]
 C07K 17/04
·  ·  entrapped within the carrier, e.g. gel, hollow fibre  [4]
 C07K 17/06
·  ·  attached to the carrier via a bridging agent  [4]
 C07K 17/08
·  ·  the carrier being a synthetic polymer  [4]
 C07K 17/10
·  ·  the carrier being a carbohydrate  [4]
 C07K 17/12
·  ·  ·  Cellulose or derivatives thereof  [4]
 C07K 17/14
·  Peptides or proteins being immobilised on, or in, an inorganic carrier  [4]
 C07K 99/00
Indexing scheme associated with group C07K 7/00, relating to chemical constitution of peptide sequences  [4]
 C07K 99/00 - 
C07K 99/00

Note(s)

  1. Group C07K 99/00 constitutes an indexing scheme for non-obligatory use only. The indexing scheme may be used to identify "additional information", which constitutes further information about subject matter already classified in group C07K 7/00. The indexing codes of this group of which only the pertinent ones should be selected, are added in conformity with paragraph 76 of the Guide so as to provide information concerning the chemical constitution of peptide sequences. These indexing codes should be presented as unlinked to the classification symbols with which they are associated, in conformity with paragraph 85 (b) of the Guide. [4]
  2. In group C07K 99/00, sequences modified by removal or addition of aminoacids, by substitution of aminoacids by others, or by a combination of these modifications are indexed as the parent peptide when the combined number of modifications totals less than 50% of aminoacids of the parent peptide. Fragments of these peptides containing at least five aminoacids, modified or not as mentioned above, are indexed as the parent peptide. [4]
 C07K 99/00
Chemical constitution of peptide sequences  [4]
 C07K 99/02
·  Peptides containing the sequence Cys-Tyr-A-Gln-Asn-Cys-Pro-B-Gly-NH2, A being Ile or Phe, B being Leu or Arg or Lys or a S-S bridge 1—6  [4]
 C07K 99/04
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/06
·  Peptides containing the sequence Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-Gly-Lys-Lys-Arg-Arg-Pro-Val-Lys-Val-Tyr-Pro-Asp-, A-B-C-D-E being Glu-Ala-Glu-Asp-Ser or Ala-Glu-Asp-Glu-Leu or Ala-Glu-Asp-Glu-Ser  [4]
 C07K 99/08
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/10
·  Peptides containing the sequence CH3CO-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2 (fragments which are common with C07K 99:06 are also indexed in that group)  [4]
 C07K 99/12
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/14
·  Peptides containing the sequence A-Arg-Val-Tyr-Val-His-Pro-Phe-B, A being Asp or Asn, B being OH or His-Leu-OH  [4]
 C07K 99/16
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/18
·  Peptides containing the sequence A-Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg-OH, A being H or Lys  [4]
 C07K 99/20
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/22
·  Peptides containing the sequence Pgl-Pro-Ser-Lys-Asp-Ala-Phe-Ile-Gly-Leu-Met-NH2  [4]
 C07K 99/24
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/26
·  Peptides comprising the sequences Gly-Ile-Val-Glu-Gln-Cys-Cys-A B-C-Cys-Ser-Leu-Tyr-Gln— Leu-Gln-Asn-Tyr-Cys-Asn-OH and Phe-Val-Asn-Gln-His-Leu-C s-Gly-Ser-His-Leu-Val-Glu-Ala-Leu-Tyr-Leu-Val-Cys-Gly-Glu-Arg-Gly-Phe-Phe-, A-B-C being -Ala-Ser-Val-, or -Ala-Gly-Val-, or -Thr-Ser-Ile-, or -Ala-Ser-Val-, D being Ala-OH or Thr-OH  [4]
 C07K 99/28
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/30
·  Peptides containing the sequence Pgl-Gly-Pro-Trp-A-Glu-Glu-B-Glu-B-Ala-Tyr-Gly-Trp-Met-Asp-Phe-NH2, A being Met, Leu or Val, B being Glu or Ala  [4]
 C07K 99/32
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/34
·  Peptides containing the sequence His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg-Ala-Gln-Asp-Phe-Val-Gln-Tyr-  [4]
 C07K 99/36
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/38
·  Peptides containing the sequence His-Ser-Asp-Gly-Thr-Phe-Thr-Ser-Glu-Leu-Ser-Arg-Leu-Arg-Asp-Ser-Ala-Arg-Leu-Gln-Arg-Leu-Leu-Gln-Gly- (fragments containing the unchanged sequence 4-8, i.e. -Gly-Thr-Phe-Thr-Ser- are also indexed in C07K 99:34)  [4]
 C07K 99/40
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/42
·  Peptides containing the sequence Cys-Ser-Asn-Leu-Ser-Thr-Cys-Val-Leu-Ser-Ala-Tyr-Trp-Arg-Asn-Leu-Asn-Asn-Phe-His-Arg-Phe-Ser-Gly-Met-  [4]
 C07K 99/44
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/46
·  Peptides containing the sequence Cys-Gly-Asn-Leu-Ser-Thr-Cys-Met-Leu-Gly-Thr-Tyr-Thr-Glu-Asp-Phe-Asn-Lys-Phe-His-Thr-Phe-Pro-Gln-Thr- (fragments which are common with C07K 99:42 are also indexed in that group)  [4]
 C07K 99/48
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/50
·  Peptides containing the sequence HCO-Val-Gly-Ala-Leu-Ala-Val-Val-Val-Trp-Leu-Trp-Leu-Trp-Leu-Trp-NHCH2CH2OH  [4]
 C07K 99/52
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/54
·  Peptides containing the sequence Pgl-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2  [4]
 C07K 99/56
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/58
·  Peptides containing the sequence Ala-Gly-Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys-OH  [4]
 C07K 99/60
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/62
·  Peptides containing the sequence Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-  [4]
 C07K 99/64
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/66
·  Peptides containing the sequence Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-OH (fragments which are common with group C07K 99:62 are also indexed in that group)  [4]
 C07K 99/68
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/70
·  Peptides containing the sequence Tyr-Gly-Gly-Phe-X, X being an aminoacid (sequences containing more than five aminoacids C07K 99:62, C07K 99:66)  [4]
 C07K 99/72
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/74
·  Peptides containing the sequence -Arg-Lys-Asp-Val-Tyr-Val-  [4]
 C07K 99/76
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/78
·  Peptides containing the sequence Asp-A-Gly-Pro-Tyr-B-Met-Glu-His-Phe-Arg-Trp-Gly-Ser-Pro-Pro-Lys-Asp-OH, A being Glu or Ser, B being Lys or Arg  [4]
 C07K 99/80
·  ·  containing at least one D-aminoacid  [4]
 C07K 99/82
·  Peptides containing the sequence -Thr-Val-Pro-Ser-(N-methyl)Val-  [4]
 C07K 99/84
·  ·  containing at least one D-aminoacid zlvs4elfb226fls0er0==  [4]