Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1983-6-17
pubmed:abstractText
Snail intestine was found to actively accumulate L-phenylalanine. The uptake of L-phenylalanine was a saturable function of the amino acid concentration and sodium-dependent. The KT for L-phenylalanine uptake increased as the Na+ concentration was reduced, being 2.2 mM at 71.4 mM Na+, 5.9 mM at 10 mM Na+ and 9.9 mM at 0 mM Na+. Variations in Na+ concentration were without effect on the Vmax. At low concentrations of L-phenylalanine (0.5 and 1 mM) the tissue was able to concentrate the amino acid even in the absence of Na+. L-phenylalanine uptake was competitively inhibited by L-methionine (KI = 0.58 mM). This finding suggests that both amino acids might share a common transport system, being the affinity for L-methionine higher than for L-phenylalanine.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0034-9402
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
403-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Active transport of L-phenylalanine by snail intestine, Helix (Cryptomphalus) aspersa.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't