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Glutamine

A crystalline amino acid occurring in proteins; important in protein metabolism.One of the 20 amino acids that are commonly found in proteins.glutamine

(Science: amino acids) One of the 20 amino acids commonly found (and directly coded for) in proteins. It is the amide at the _ carboxyl of the amino acid glutamate. Glutamine can participate in covalent cross linking reactions between proteins, by forming peptide like bonds by a transamidation reaction with lysine residues. This reaction, catalysed by clotting factor XIII stabilises the aggregates of fibrin formed during blood clotting. Media for culture of animal cells contain some 10 times more glutamine than other amino acids, the excess presumably acting as a carbon source.


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Glutamine synthetase in animals

Yes. Check out GenBank http://www.ncbi.nlm.nih.gov/nuccore. Enter "glutamine synthetase" (with the quotation marks) and any animal whose genome has been sequenced, e.g. "Homo sapiens", "Caenorhabditis elegans".

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by wbla3335
Sat Jan 12, 2013 2:15 pm
 
Forum: Molecular Biology
Topic: Glutamine synthetase in animals
Replies: 2
Views: 1129

Glutamine synthetase in animals

Hi everybody I've been looking for a while now, and haven't come across this anywhere. Is glutamine synthetase (enzyme synthesizing glutamine from glutamate and ammonia) present in heterotrophs, e.g animals? This is quite a big deal, because it is the primary pahtway ...

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by miikaelf
Sat Jan 12, 2013 12:33 pm
 
Forum: Molecular Biology
Topic: Glutamine synthetase in animals
Replies: 2
Views: 1129

Re:

... means that you have depleted all liver glycogen levels, gluconeogenesis is running significantly from glycerol-3-P, and levels of circulating glutamine are low. At this point in starvation, the body begins to signal with cortisol, glucagon, and other intercellular signals to slow down enzymatic ...

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by daniel.kurz
Mon Nov 14, 2011 4:09 am
 
Forum: Human Biology
Topic: Low Burn
Replies: 4
Views: 3156

solubility of tripeptides

... - alanine - glycine – C N - leucine - alanine - lysine – C N - proline - phenylalanine - alanine – C N - arginine - lysine – proline – C N - glutamine - asparagine - glycine - C

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by Hudson
Fri Jan 07, 2011 1:37 am
 
Forum: Cell Biology
Topic: solubility of tripeptides
Replies: 2
Views: 4290

GMP compatible reagents

... any replacement these reagents even if is individual components. 1. Dulbecco’s Modified Eagle’s Medium - low glucose - With 1000 mg/L glucose, L-glutamine, and sodium bicarbonate 2. MCDB 201 Medium - With trace elements, L-glutamine and 30 mM HEPES 3. ITS+1 Liquid Media Supplement (100Å~) - Contains ...

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by tinghuay
Wed Oct 27, 2010 2:33 pm
 
Forum: Cell Biology
Topic: GMP compatible reagents
Replies: 0
Views: 2154
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