Dictionary » D » Disulphide



(Science: chemistry) a binary compound of sulphur containing two atoms of sulphur in each molecule; formerly called disulphuret. Cf. Bisulphide.

Origin: Pref. Di- _ sulphide.

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Protein structure

... sheet The tertiary structure is a 3d representation of a peptide chain to show how non-covalent bonds i.e ionic bonds , hydrophobic interactions , disulphide bridges and hydrogen bonds hold the 3d shape together The Quaternary structure is a 3d model that shows how non-convalent bonds hold together ...

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by ccBiologist
Thu Sep 29, 2011 8:15 am
Forum: Molecular Biology
Topic: Protein structure
Replies: 4
Views: 15582

Denaturation and refolding of an enzyme

Q1.Lysozyme is a very stable protein with four disulphide bonds. How does this structural feature relate to its function? I think the answer Lysozyme is a protein found in many human secretions, such as tears, milk, mucus and saliva.Lysozyme protects ...

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by enzsel
Thu Dec 02, 2010 1:54 pm
Forum: Cell Biology
Topic: Denaturation and refolding of an enzyme
Replies: 3
Views: 4099

tertiary protein structure functional groups

all of them is the answer as the 4 types of bonding (namely hydrogen, hydrophobic, electrostatic and disulphide) are involved in making the secondary, tertiary and quatenary structure)

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by jwalin
Sun Jan 17, 2010 4:27 am
Forum: Molecular Biology
Topic: tertiary protein structure functional groups
Replies: 6
Views: 6382

The Immune System - Recognition in innate immunity. How?

... and is capable of binding with high affinity to the surface of basophils and mast cells (Fce receptors). They also have different kind of disulphide bonding and N-linked carbohydrates when compared to IgGs.

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by biohazard
Tue May 12, 2009 7:43 am
Forum: Cell Biology
Topic: The Immune System - Recognition in innate immunity. How?
Replies: 2
Views: 10577

Re: Denaturation of enzymes

... the protein was first created? Say, for example, you have the covalent bonds (along the entire primary structure) that form first, followed by disulphide bonds. What if a single disulphide bond were to form first, before all the covalent bonds had finished creating the primary structure? Is ...

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by carmenh
Fri Feb 27, 2009 10:21 pm
Forum: General Discussion
Topic: Denaturation of enzymes
Replies: 3
Views: 103700
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