Monocarboxylate transporter 2

Last updated
SLC16A7
Identifiers
Aliases SLC16A7 , MCT2, solute carrier family 16 member 7
External IDs OMIM: 603654 MGI: 1330284 HomoloGene: 20990 GeneCards: SLC16A7
Gene location (Human)
Ideogram human chromosome 12.svg
Chr. Chromosome 12 (human) [1]
Human chromosome 12 ideogram.svg
HSR 1996 II 3.5e.svg
Red rectangle 2x18.png
Band 12q14.1Start59,596,029 bp [1]
End59,789,855 bp [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001270622
NM_001270623
NM_004731

NM_011391
NM_001358496
NM_001358915

RefSeq (protein)

NP_001257551
NP_001257552
NP_004722

NP_035521
NP_001345425
NP_001345844

Location (UCSC) Chr 12: 59.6 – 59.79 Mb Chr 10: 125.22 – 125.39 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Monocarboxylate transporter 2 (MCT2) also known as solute carrier family 16 member 7 (SLC16A7) is a protein that in humans is encoded by the SLC16A7 gene. [5] MCT2 is a proton-coupled monocarboxylate transporter. It catalyzes the rapid transport across the plasma membrane of many monocarboxylates such as lactate, branched-chain oxo acids derived from leucine, valine and isoleucine, and the ketone bodies acetoacetate and beta-hydroxybutyrate. It also functions as high-affinity pyruvate transporter.

Contents

Both Northern blot analysis and inspection of the human expressed sequence tag (EST) database suggest relatively little expression of MCT2 in human tissues. As well, the sequence of MCT2 is far less conserved across species than that of MCT1 or MCT4 and there also appear to be considerable species differences in the tissue expression profile of this isoform.

Of the four known mammalian lactate transporters (MCTs 1-4), MCT2 harbors the highest affinity for lactate. [6] In parallel, MCT2 gene transcription has been demonstrated to respond with high-sensitivity to hypoxia, intracellular pH, and, to lactate. [7]

See also

Related Research Articles

Glucose transporter 3, also known as solute carrier family 2, facilitated glucose transporter member 3 (SLC2A3) is a protein that in humans is encoded by the SLC2A3 gene. GLUT3 facilitates the transport of glucose across the plasma membranes of mammalian cells. GLUT3 is most known for its specific expression in neurons and has originally been designated as the neuronal GLUT. GLUT3 has been studied in other cell types with specific glucose requirements, including sperm, preimplantation embryos, circulating white blood cells and carcinoma cell lines.

Basigin

Basigin (BSG) also known as extracellular matrix metalloproteinase inducer (EMMPRIN) or cluster of differentiation 147 (CD147) is a protein that in humans is encoded by the BSG gene. This protein is a determinant for the Ok blood group system. There are three known antigens in the Ok system; the most common being Oka, OK2 and OK3. Basigin has been shown to be an essential receptor on red blood cells for the human malaria parasite, Plasmodium falciparum.

Excitatory amino acid transporter 1

Excitatory amino acid transporter 1 (EAAT1) is a protein that, in humans, is encoded by the SLC1A3 gene. EAAT1 is also often called the GLutamate ASpartate Transporter 1 (GLAST-1).

Excitatory amino acid transporter 2

Excitatory amino acid transporter 2 (EAAT2) also known as solute carrier family 1 member 2 (SLC1A2) and glutamate transporter 1 (GLT-1) is a protein that in humans is encoded by the SLC1A2 gene. Alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known.

Excitatory amino acid transporter 3

Excitatory amino acid transporter 3 (EAAT3), is a protein that in humans is encoded by the SLC1A1 gene.

Monocarboxylate transporter 5

Monocarboxylate transporter 5 is a protein that in humans is encoded by the SLC16A4 gene.

Monocarboxylate transporter 8

Monocarboxylate transporter 8 (MCT8) is an active transporter protein that in humans is encoded by the SLC16A2 gene.

Sodium- and chloride-dependent glycine transporter 1

Sodium- and chloride-dependent glycine transporter 1, also known as glycine transporter 1, is a protein that in humans is encoded by the SLC6A9 gene.

Zinc transporter 4

Zinc transporter 4 is a protein that in humans is encoded by the SLC30A4 gene.

SLC15A2

Solute carrier family 15, member 2, also known as SLC15A2, is a human gene.

Monocarboxylate transporter 4

Monocarboxylate transporter 4 (MCT4) also known as solute carrier family 16 member 3 is a protein that in humans is encoded by the SLC16A3 gene.

Sodium-coupled monocarboxylate transporter 1

Sodium-coupled monocarboxylate transporter 1 is a protein that in humans is encoded by the SLC5A8 gene.

SLC13A3

Solute carrier family 13 member 3 also called sodium-dependent dicarboxylate transporter (NaDC3) is a protein that in humans is encoded by the SLC13A3 gene.

Monocarboxylate transporter 1

Monocarboxylate transporter 1 is a protein that in humans is encoded by the SLC16A1 gene. It is a proton coupled monocarboxylate transporter.

The monocarboxylate transporters, or MCTs, are a family of proton-linked plasma membrane transporters that carry molecules having one carboxylate group (monocarboxylates), such as lactate and pyruvate, across biological membranes. MCTs are expressed in nearly every kind of cell.

Monocarboxylate transporter 10

Monocarboxylate transporter 10, also known as aromatic amino acid transporter 1 and T-type amino acid transporter 1 (TAT1) and solute carrier family 16 member 10 (SLC16A10), is a protein that in humans is encoded by the SLC16A10 gene. SLC16A10 is a member of the solute carrier family.

Monocarboxylate transporter 9

Monocarboxylate transporter 9 is a protein that in humans is encoded by the SLC16A9 gene.

The lactate shuttle hypothesis was proposed by professor George Brooks of the University of California at Berkeley, describing the movement of lactate intracellularly and intercellularly. The hypothesis is based on the observation that lactate is formed and utilized continuously in diverse cells under both anaerobic and aerobic conditions. Further, lactate produced at sites with high rates of glycolysis and glycogenolysis can be shuttled to adjacent or remote sites including heart or skeletal muscles where the lactate can be used as a gluconeogenic precursor or substrate for oxidation.

Monocarboxylate transporter 3

Monocarboxylate transporter 3 (MCT3) also known as solute carrier family 16 member 8 is a protein that in humans is encoded by the SLC16A8 gene. MCT is a proton-coupled monocarboxylate transporter. It catalyzes the rapid transport across the plasma membrane of many monocarboxylates such as lactate, pyruvate, branched-chain oxo acids derived from leucine, valine and isoleucine, and the ketone bodies acetoacetate, beta-hydroxybutyrate and acetate. It also functions as high-affinity pyruvate transporter.

Proton-coupled folate transporter

The proton-coupled folate transporter is a protein that in humans is encoded by the SLC46A1 gene. The major physiological roles of PCFTs are in mediating the intestinal absorption of folate, and its delivery to the central nervous system.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000118596 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000020102 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Garcia CK, Goldstein JL, Pathak RK, Anderson RG, Brown MS (Apr 1994). "Molecular characterization of a membrane transporter for lactate, pyruvate, and other monocarboxylates: implications for the Cori cycle". Cell. 76 (5): 865–73. doi:10.1016/0092-8674(94)90361-1. PMID   8124722. S2CID   22137883.
  6. Halestrap AP (Jan 2012). "The monocarboxylate transporter family--Structure and functional characterization". IUBMB Life. 64 (1): 1–9. doi: 10.1002/iub.573 . PMID   22131303. S2CID   24460891.
  7. Caruso JP, Koch BJ, Benson PD, Varughese E, Monterey MD, Lee AE, Dave AM, Kiousis S, Sloan AE, Mathupala SP (Feb 2017). "pH, Lactate, and Hypoxia: Reciprocity in Regulating High-Affinity Monocarboxylate Transporter Expression in Glioblastoma". Neoplasia. 19 (2): 121–134. doi:10.1016/j.neo.2016.12.011. PMC   5238458 . PMID   28092823.

Further reading