US PATENT SUBCLASS 530 / 358
.~ Nucleoproteins, e.g., chromatin, chromosomal proteins, histones, protamines, salmine, etc.

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

350  DF  PROTEINS, I.E., MORE THAN 100 AMINO ACID RESIDUES {14}
358.~ Nucleoproteins, e.g., chromatin, chromosomal proteins, histones, protamines, salmine, etc.

DEFINITION

Classification: 530/358

Nucleoproteins, i.e., chromatin, chromosomal proteins, histones, protamines, salmine, etc.:

(under subclass 350) Proteins conjugated with nucleic acids.

(1) Note. Upon hydrolysis nucleoproteins yield proteins and nucleic acids. Further hydrolysis of the nucleic acid fraction will yield a mixture of purine and pyrimidine bases (Adenine, Guanine, Cytosine Thymine, Uracil), sugars (ribose or deoxyribose) and phosphoric acid.

(2) Note. Casein for purposes of this class is excluded from nucleoproteins.

(3) Note. Examples. Chromatin, Heterochromatin, nucleosomes, histone and nonhistone chromosomal proteins, clupeine, salmine, ribonucleoproteins

(4) Note. Mesh tree number: D12.776.664 [figure]