Correction: Visualization of Glutamine Transporter Activities in Living Cells Using Genetically Encoded Glutamine Sensors
Katrin Gruenwald, John Todd Holland, Verlyn Stromberg, Altaf Ahmad, Daisy Watcharakichkorn, Sakiko Okumoto

Abstract
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
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Figure 1
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Taxonomy
TopicsAmino Acid Enzymes and Metabolism · Biotin and Related Studies · Pancreatic function and diabetes
The seventh sentence of the first paragraph under the subheading “Affinity and Substrate Specificities of FLIPQ-TV3.0 Sensors” of the Results and Discussion section is incorrect. The correct sentence is: The resulting clones, FLIPQ-TV3.0_R75K, R75M, D157N, R75MW220A, and R75MY86A had Kd of 1.5×10−6 M, 5.3×10−5 M, 1.3×10−4 M, and 1.6×10−3, and 7.6×10−3 M, respectively (Fig 4A, Table 1).
In Table 1, the fifth and six row labels under the column heading Mutations in glnH are swapped. Please see the corrected Table 1 here.
In Fig 4A, the in-figure legends for R75MW220A and R75AY86A are swapped. Please view the correct Fig 4 here.
The reference list from the paper itself. Each links out to its DOI / PubMed record.
- 1Gruenwald K, Holland JT, Stromberg V, Ahmad A, Watcharakichkorn D, Okumoto S (2012) Visualization of Glutamine Transporter Activities in Living Cells Using Genetically Encoded Glutamine Sensors. P Lo S ONE 7(6): e 38591 doi: 10.1371/journal.pone.0038591 2272386810.1371/journal.pone.0038591 PMC 3375291 · doi ↗ · pubmed ↗
