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Dictionary » L » Lysine

Lysine

Lysine

(Science: amino acid) The only carrier of a side chain primary amino group in proteins. Has important structural and chemical roles in proteins.


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Unknown Organism

... is present* 14. SIM Medium Sulfur is not reduced, Tryptophan is not broken down, and organism is motile 15. LIA Ferments dextrose only, no lysine deaminase* 16. TSI Ferments dextrose, lactose and/or sucrose I am 95% positive it is a facultative anaerobe. The ones marked with a "*" ...

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by CheriPeace
Fri Jun 29, 2012 9:08 pm
 
Forum: Microbiology
Topic: Unknown Organism
Replies: 5
Views: 3969

Microbiology help in identifying Gram + rod for my unknown

... a little iffy citrate= - oxidase= - catalase= + Gelatin liquefaction= - starch=- casein=+ urease= + Indole= - Dnase= + ornithine decarboxylase= - Lysine decarboxylase= + Arginine decarboxylase= - Any help would be great I have been racking my brain over the bacillus and nothing seems to fit Thank ...

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by ccapelouto838
Thu May 03, 2012 5:21 am
 
Forum: Microbiology
Topic: Microbiology help in identifying Gram + rod for my unknown
Replies: 12
Views: 6774

Help with unkown

... casein hydrolysis - Lipase + tryptophanase + urea - cysteine desulfurase hydrogen sulfide production. Citrate - phenylalanase - litmus milk - Lysine decarboxylase - I think it's Shigella flexneri, but i would love a second opinion.

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by bruserboy1
Thu Apr 05, 2012 3:48 pm
 
Forum: Microbiology
Topic: Help with unkown
Replies: 0
Views: 879

Indentifying an Unknown

... + Starch: - Casein Hydrolysis: - Lipase: + Indole: - Urease: - Hydrogen Sulfide: - (but gas was produced) Citrate: + Phenylalanine: - Litmus: + Lysine: + Those are all of the results. I'm pretty positive it is an enterobacter. I just can't decide which species it is. I think E. intermedius.. ...

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by tkdgirl
Wed Apr 04, 2012 8:22 pm
 
Forum: Microbiology
Topic: Indentifying an Unknown
Replies: 0
Views: 1052

Help identifying a unkown

... Litmus milk -not sure yet, incubating more- http://i1103.photobucket.com/albums/g478/Dave_Fascia/0330121522b.jpg lysine decarboxylase test - contradicts my glucose test, this is neg =/ http://i1103.photobucket.com/albums/g478/Dave_Fascia/0330121524.jpg

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by bruserboy1
Mon Apr 02, 2012 2:53 am
 
Forum: Microbiology
Topic: Help identifying a unkown
Replies: 2
Views: 1565
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