Quaternary structure of protein, Biology

Quaternary Structure (4o Structure).

  • Globular in structure.
  • When two or more than two molecules of protein of tertiary structure are connected to each other through various bonds then this structure is called quaternary structure.
  • Most stable protein.
  • Haemoglobin has 4 polypeptide chains (2 a chains & 2 b chains).
  • Insulin consists of 2 polypeptide chains (1 a chain & 1 b chain).
  • A chain of insulin consists of 21 amino acids and b chain insulin consists 30 amino acids.
  • Total numbers of 51 amino acids are present in insulin
  • Molecular structure of insulin described by F. Sanger (He got 1st time Nobel Prize)
  • He got 2nd time Nobel Prize for preparing chromosomal maps.

1328_quaternary structure.png

  • Quaternary structure was first studied in case of haemoglobin by Kendrew and Perutz (1963).
Posted Date: 10/9/2012 5:54:21 AM | Location : United States

Related Discussions:- Quaternary structure of protein, Assignment Help, Ask Question on Quaternary structure of protein, Get Answer, Expert's Help, Quaternary structure of protein Discussions

Write discussion on Quaternary structure of protein
Your posts are moderated
Related Questions
Endocarditis usually occurrs more frequently in men, gender derived ratios range from 1.6 to 2.5. The age specific incidence of endocarditis increased progressively after 30 years

Arrhythmias especially in presence of hypokalemia, lack of mortality benefit. However, their efficacy in reducing the symptoms of heart failure has been established. Digoxin should

Q. What are the pentoses? To what organic group do the pentoses belong? Are nucleotides formed of only one kind of pentose? Carbohydrates are Pentoses made of five carbons. Deo

Classification according to the modes of transmission 1.  Direct zoonoses: The direct zoonoses are those zoonoses that are transmitted from an infected vertebrate host to a

Q. What are the major features of fishes associated to the habitat where they live? Fishes are all aquatic animals and thus they have a hydrodynamic elongated body appropriate

Corpus Cardiacum - Endocrine Organs We before mentioned that corpus cardiacum (pl. corpora cardiaca) is a neurohemal organ in insects. It is gland of neural origin. They are c

Upon admission the DPU nurse notes: Fasting status - fasted from 12 midnight, no morning medication taken. Consent - signed Pre anaesthetic check Test results

Define Evolution of food processing? 8000 - 7000 BC. Mankind first began farming, growing crops and raising animals for food instead of hunting and gathering for food.

Rumen protection of nutrient (bypass nutrients) technology The amino acid and energy requirements of medium and high yielding cows and buffaloes are not fully met from the micr

Signify the term - Analogy, Analogous? Refers to structures that do not have the same evolutionary origin but have the same functions. The wings of a bat and insect are analogo