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Sequence, tissue distribution, and differential expression of mRNA for a putative insulin-responsive glucose transporter in mouse 3T3-L1 adipocytes.

Open access
Kaestner, K H, Christy, R J, McLenithan, J C, Braiterman, L T, Cornelius, P, Pekala, P H, Lane, M D·1989·Proceedings of the National Academy of Sciences

Abstract

The cDNAs for two putative glucose transporters from mouse 3T3-L1 adipocytes were isolated and sequenced. One of these cDNAs encodes the murine homolog of the human hepG2/erythrocyte glucose transporter, termed GT1. GT1 mRNA is most abundant in mouse brain and is expressed in both 3T3-L1 preadipocytes and adipocytes. The other cDNA encodes a glucose transporter-like protein, termed GT2, that has a unique amino acid sequence and tissue distribution. GT2 cDNA encodes a protein with 63% amino acid sequence identity and a similar structural organization to GT1. GT2 mRNA is found at high levels in mouse skeletal muscle, heart, and adipose tissue, all of which exhibit insulin-stimulated glucose uptake. GT2 mRNA is absent from 3T3-L1 preadipocytes but is induced dramatically during differentiation into adipocytes. This increase in mRNA content correlates closely with the acquisition of insulin-stimulated glucose uptake. We propose that GT2 is an insulin-regulated glucose transporter.

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Authors
Kaestner, K. H., Christy, R. J., McLenithan, J. C., Braiterman, L. T., Cornelius, P., Pekala, P. H., & Lane, M. D.
Venue
Proceedings of the National Academy of Sciences
Published
1989-05
Volume
86
Issue
9
Pages
3150-3154
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2072850070
Cited by
305
References
0
FWCI
13.76
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Sequence, tissue distribution, and differential expression of mRNA for a putative insulin-responsive glucose transporter in mouse 3T3-L1 adipocytes. https://app.cochat.ai/papers/10.1073/pnas.86.9.3150
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Kaestner, K. H., Christy, R. J., McLenithan, J. C., Braiterman, L. T., Cornelius, P., Pekala, P. H., & Lane, M. D. (1989). Sequence, tissue distribution, and differential expression of mRNA for a putative insulin-responsive glucose transporter in mouse 3T3-L1 adipocytes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.86.9.3150

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