Purified Membrane Proteins

Transient receptor potential cation channel subfamily M member 5 (Long transient receptor potential channel 5) (LTrpC-5) (LTrpC5) (MLSN1- and TRP-related gene 1 protein)

Voltage-modulated Ca(2+)-activated, monovalent cation channel (VCAM) that mediates a transient membrane depolarization and plays a central role in taste transduction. Monovalent-specific, non-selective cation channel that mediates the transport of Na(+), K(+) and Cs(+) ions equally well. Activated directly by increases in intracellular Ca(2+), but is impermeable to it. Gating is voltage-dependent and displays rapid activation and deactivation kinetics upon channel stimulation even during sustained elevations in Ca(2+). Also activated by a fast intracellular Ca(2+) increase in response to inositol 1,4,5-triphosphate-producing receptor agonists. The channel is blocked by extracellular acidification. External acidification has 2 effects, a fast reversible block of the current and a slower irreversible enhancement of current inactivation. Is a highly temperature-sensitive, heat activated channel showing a steep increase of inward currents at temperatures between 15 and 35 degrees Celsius. Heat activation is due to a shift of the voltage-dependent activation curve to negative potentials. Activated by arachidonic acid in vitro. May be involved in perception of bitter, sweet and umami tastes. May also be involved in sensing semiochemicals. {ECO:0000269|PubMed:14634208}.

Native

Stable

Pure

Active protein

Recombinant protein

Human Origin

Entry Name:

TRPM5_HUMAN

Gene Name:

TRPM5 LTRPC5 MTR1

Uniprot Accession:

Q9NZQ8

Origin:

Homo sapiens (Human)

Protein family:

Transient receptor (TC 1.A.4) family, LTrpC subfamily, TRPM5 sub-subfamily

Full-length:

1165

AA

Mass:

131451

Da

MQDVQGPRPGSPGDAEDRRELGLHRGEVNFGGSGKKRGKFVRVPSGVAPSVLFDLLLAEWHLPAPNLVVSLVGEEQPFAMKSWLRDVLRKGLVKAAQSTGAWILTSALRVGLARHVGQAVRDHSLASTSTKVRVVAVGMASLGRVLHRRILEEAQEDFPVHYPEDDGGSQGPLCSLDSNLSHFILVEPGPPGKGDGLTELRLRLEKHISEQRAGYGGTGSIEIPVLCLLVNGDPNTLERISRAVEQAAPWLILVGSGGIADVLAALVNQPHLLVPKVAEKQFKEKFPSKHFSWEDIVRWTKLLQNITSHQHLLTVYDFEQEGSEELDTVILKALVKACKSHSQEPQDYLDELKLAVAWDRVDIAKSEIFNGDVEWKSCDLEEVMVDALVSNKPEFVRLFVDNGADVADFLTYGRLQELYRSVSRKSLLFDLLQRKQEEARLTLAGLGTQQAREPPAGPPAFSLHEVSRVLKDFLQDACRGFYQDGRPGDRRRAEKGPAKRPTGQKWLLDLNQKSENPWRDLFLWAVLQNRHEMATYFWAMGQEGVAAALAACKILKEMSHLETEAEAARATREAKYERLALDLFSECYSNSEARAFALLVRRNRCWSKTTCLHLATEADAKAFFAHDGVQAFLTRIWWGDMAAGTPILRLLGAFLCPALVYTNLITFSEEAPLRTGLEDLQDLDSLDTEKSPLYGLQSRVEELVEAPRAQGDRGPRAVFLLTRWRKFWGAPVTVFLGNVVMYFAFLFLFTYVLLVDFRPPPQGPSGPEVTLYFWVFTLVLEEIRQGFFTDEDTHLVKKFTLYVGDNWNKCDMVAIFLFIVGVTCRMLPSAFEAGRTVLAMDFMVFTLRLIHIFAIHKQLGPKIIVVERMMKDVFFFLFFLSVWLVAYGVTTQALLHPHDGRLEWIFRRVLYRPYLQIFGQIPLDEIDEARVNCSTHPLLLEDSPSCPSLYANWLVILLLVTFLLVTNVLLMNLLIAMFSYTFQVVQGNADMFWKFQRYNLIVEYHERPALAPPFILLSHLSLTLRRVFKKEAEHKREHLERDLPDPLDQKVVTWETVQKENFLSKMEKRRRDSEGEVLRKTAHRVDFIAKYLGGLREQEKRIKCLESQINYCSVLVSSVADVLAQGGGPRSSQHCGEGSQLVAADHRGGLDGWEQPGAGQPPSDT

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Expression systems: bacteria, yeast, insect cells, HEK & CHO mammalian cells
Purified formats: detergents, SMALPs, nanodiscs, proteoliposomes