Results 11 to 20 of about 41,258,498 (233)

Relació estructura-funció en la familia de transportadors d'aminoàcids heteromultimèrics identificació d'una nova farnjlia de transportadors lisosomals [PDF]

, 2000
[cat] ANTECEDENTS El coneixement de Ies diferents activitats de transport d'aminoàcids prové de l'anàlisi del transport d'aquests en cèl.lules o vesícules de membrana provinents del teixit que es vol analitzar.
Estévez Povedano, Raúl
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Use of membrane vesicles to estimate the numbers of system y+ and system L amino acid transporters in human erythrocytes [PDF]

Biochemical Journal, 1991
We have used equilibrium values for L-leucine and L-lysine uptake by right-side-out vesicles to estimate the membrane abundance (sites/cell) of Na(+)-dependent amino acid transport systems L and y+ in human erythrocytes. All of the intravesicular space was accessible to L-leucine, as judged by comparisons with uridine uptake via the equilibrative ...
C M, Tse, D A, Fincham, J C, Ellory, J D, Young   +3 more
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A mutation in amino acid permease AAP6 reduces the amino acid content of the Arabidopsis sieve elements but leaves aphid herbivores unaffected [PDF]

, 2010
The aim of this study was to investigate the role of the amino acid permease gene AAP6 in regulating phloem amino acid composition and then to determine the effects of this altered diet on aphid performance.
Newbury, H. J., Hunt, E. (Emma), Gattolin, Stefano, Pritchard, J. (Jeremy), Tseng, Hua-Ming, Bale, J. S. (Jeffrey S.), Barrett, D. A. (David A.)   +6 more
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Amino acid racemization dating: Method development using African ostrich (Struthio camelus) eggshell [PDF]

, 2013
Ostrich eggshell (OES) is ubiquitous in archaeological sites in Africa and is a favoured substrate for amino acid racemisation (AAR) geochronology, yielding consistent results and thought to approximate a closed system with respect to protein diagenesis.
Crisp, Molly Katherine
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System y+L: the broad scope and cation modulated amino acid transporter

Experimental Physiology, 1998
The properties are discussed of system y+L, a broad scope amino acid transporter which was first identified in human erythrocytes. System y+L exhibits two distinctive properties: (a) it can bind and translocate cationic and neutral amino acids, and (b) its specificity varies depending on the ionic composition of the medium.
R, Devés, S, Angelo, A M, Rojas
openaire   +2 more sources

The catalytic subunit of the system L1 amino acid transporter (Slc7a5) facilitates nutrient signalling in mouse skeletal muscle [PDF]

, 2014
The System L1-type amino acid transporter mediates transport of large neutral amino acids (LNAA) in many mammalian cell-types. LNAA such as leucine are required for full activation of the mTOR-S6K signalling pathway promoting protein synthesis and cell ...
Adel F M Ibrahim, Yun-Bo Shi, Mitchell, Fiona E., Grant English (527945), Peter M Taylor, Taylor Peter M., Poncet, Nadège, Fiona E Mitchell, Ibrahim Adel F. M., English, Grant, J. Simon C Arthur (527946), Nadège Poncet, Victoria A McGuire, Yun-Bo Shi (193634), Arthur J. Simon C, McGuire Victoria A., Adel F. M. Ibrahim (188343), Grant English, Taylor, Peter M., Ibrahim, Adel F. M., Poncet Nadège, Nadège Poncet (527942), Victoria A. McGuire (527944), Peter M. Taylor (527947), McGuire, Victoria A., English Grant, Arthur, J. Simon C; id_orcid, Mitchell Fiona E., Shi Yun-Bo, Fiona E. Mitchell (527943), Shi, Yun-Bo, J Simon C Arthur   +31 more
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The amino acid transport system y ⁺ L/4F2hc is a heteromultimeric complex

The FASEB Journal, 1998
4F2hc is an almost ubiquitous transmembrane protein in mammalian cells; upon expression in Xenopus laevis oocytes, it induces amino acid transport with characteristics of system y + L.
Estévez, Raúl, Camps, Marta, Rojas, Ana María, Testar, Xavier, Devés, Rosa, Hediger, Matthias A., Zorzano, Antonio, Palacín, Manuel   +7 more
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Root phloem-specific expression of the plasma membrane amino acid proton co-transporter AAP3 [PDF]

, 2004
Amino acids are regarded as the nitrogen ‘currency’ of plants. Amino acids can be taken up from the soil directly or synthesized from inorganic nitrogen, and then circulated in the plant via phloem and xylem.
Sakiko Okumoto, Leister, D., Frommer, Wolf B., Wolf B. Frommer, Okumoto, Sakiko, FISCHER, Wolf N, Stierhof, York Dieter, Frommer, W. B., Stierhof, Y., Stierhof, Y.-D., Fischer, W., Wolfgang Koch, Koch, W., FROMMER, Wolf B, Mechthild Tegeder, Fischer, Wolf N., Leister, Dario, Wolf N. Fischer, Koch, Wolfgang, Okumoto, S., Tegeder, Mechthild, Dario Leister, Tegeder, M., Biehl, A., York Dieter Stierhof, Alexander Biehl, Biehl, Alexander, Fischer, W. N., Frommer, W.   +28 more
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The AAP gene family for amino acid permeases contributes to development of the cyst nematode Heterodera schachtii in roots of Arabidopsis [PDF]

, 2013
The beet cyst nematode Heterodera schachtii is able to infect Arabidopsis plants and induce feeding sites in the root. These syncytia are the only source of nutrients for the nematodes throughout their life and are a nutrient sink for the host plant.
Elashry, Abdelnaser, Siddique, Shahid, Koch, Wolfgang, Kreil, David, Okumoto, Sakiko, Bohlmann, Holger, Kreil, David P.   +6 more
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Stimulation of system y(+)-like amino acid transport by the heavy chain of human 4F2 surface antigen in Xenopus laevis oocytes. [PDF]

Proceedings of the National Academy of Sciences, 1992
A kidney cortex cDNA clone (rBAT) has recently been isolated, which upon in vitro transcription and capping complementary RNA (cRNA) and injection into Xenopus laevis oocytes induces a system b0,(+)-like amino acid transport activity. This cDNA encodes a type II membrane glycoprotein that shows significant homology to another type II membrane ...
Bertran, J, Magagnin, S, Werner, A, Markovich, D, Biber, J, Testar, X, Zorzano, A, Kuhn, LC, Palacin, M, Murer, H   +9 more
openaire   +6 more sources