### protein | simple protein:

Gelatine
* is made from animal ligaments, tendons, bones etc. which have been boiled in water
  - animals used for food
  - obtained by hydrolysis of collagen by boiling skin, ligaments, tendons, etc
* simple protein

Globulin
* are in seeds and animal blood
  - insoluble in water, soluble in dilute salt solutions, and are coagulated by heat
  - one of seven classes of simple proteins
  - simple proteins that provide immunity against disease
  - the blood proteins that carry antibodies
* contain some proteins, or antibodies, related to the immune system.
* measures the protein in antibodies produced by the immune system.

### protein | simple protein:

Histone
* act as a spool around which DNA can wind.
* act as spools around which DNA winds , and play a role in gene regulation
* are a. the noncoding sequences of DNA b. the coding sequences of DNA c.
* are proteins present in all eukaryotic cells
  - rich in lysine and arginine residues and thus positively-charged
  - that bind to DNA and package it into compact structures to form chromosomes
  - used to package DNA in eukaryotes
  - rich in basic amino acids
* are small proteins that are responsible for packaging DNA into chromosomes
  - which are basic because they have a high content of arginine or lysine
  - small, basic proteins that neutralize the charge
  - some of the most conserved molecules during the course of evolution
* are the fundamental proteins involved in binding DNA into nucleosomes
  - only proteins known to be associated with chromatin
  - uniformly inhibitory to already-active euchromatin
  - unusual proteins with respect to their net electrostatic charge
* associate with DNA to form nucleosomes.
* binding proteins are basic nuclear proteins, which are involved in the nucleosome structure.
* cause the DNA to be wrapped up into tightly bound structures called chromatin.
* form the chromatin while non histones maintain chromatin structure.
* is proteins.
* mediates glomerular deposition of small size DNA anti-DNA complex.
* possess and unusually high content of the basic amino acids arginine and lysine.
* undergo changes which alter their interaction with DNA and nuclear proteins.
  * act as spools around which DNA winds, and play a role in gene regulation. Without histones, the unwound DNA in chromosomes would be very long. For example, each human cell has about 1.8 meters of DNA, but wound on the histones it has about 90 millimeters of chromatin, which, when duplicated and condensed during mitosis, result in about 120 micrometers of chromosomes.
+ Histone, Functions, Chromatin regulation
  * Histones undergo changes which alter their interaction with DNA and nuclear proteins. Combinations of modifications are thought to constitute a code, the so-called 'histone code'
  - Compacting DNA strands: Molecular biology :: Cell biology
  * Histones act as spools around which DNA winds. This packs in the large genomes of eukaryotes to fit inside cell nuclei. The compacted molecule is 40,000 times shorter than an unpacked molecule

Protamine
* enhances the proliferative activity of hepatocyte growth factor in rats
* increases the permeability of cultured epithelial monolayers.
* is contraindicated in any patient known to be hypersensitive to the drug
  - the protein added to the insulin to make it long-acting

Small protein
* Most small proteins fold in seconds.
* are reabsorbed by pinocytosis, digested, and the amino acids diffuse into the blood
  - responsible for packing the DNA into units called nucleosomes

Soluble protein
* Some soluble proteins find in blood plasma
* come out of solution to form clots.

Soybean protein
* is deficient in the sulfur-based amino acids methionine and cysteine.
* provides all the essential amino acids in the amounts needed for human health.

Specific protein
* have precise lengths and sequences of amino acids.
* transport many small molecules and ions.