Recombinant Human Solute carrier family 22 member 4 (SLC22A4), Truncated

Uniprot Id

Q9H015

Target Species

Human

Target Name

SLC22A4

Target Full Name

Solute carrier family 22 member 4

Target Function

Sodium-ion dependent, low affinity carnitine transporter. Probably transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Relative uptake activity ratio of carnitine to TEA is 1.78. A key substrate of this transporter seems to be ergothioneine (ET).

Target Involvement

Rheumatoid arthritis (RA)

Target Subcellular Location

Membrane; Multi-pass membrane protein.

Target Protein Families

Major facilitator (TC 2.A.1) superfamily, Organic cation transporter (TC 2.A.1.19) family

Target Tissue Specificity

Widely expressed. Highly expressed in whole blood, bone marrow, trachea and fetal liver. Weakly expressed in kidney, skeletal muscle, prostate, lung, pancreas, placenta, heart, uterus, spleen and spinal cord. Highly expressed in intestinal cell types affe

Target Synonyms

Ergothioneine transporter; ET transporter; integral membrane transport protein; LSTP Like 2; MGC34546; MGC40524; Octn1; Organic cation transporter 1; Organic cation/carnitine transporter 1; RP23-354D12.1; S22A4_HUMAN; Slc22a4; Solute carrier family (organic cation transporter), member 4; solute carrier family 22 (organic cation/zwitterion transporter), member 4; Solute carrier family 22 member 4

Target Background

Polyspecific organic cation transporters in the liver, kidney, intestine, and other organs are critical for elimination of many endogenous small organic cations as well as a wide array of drugs and environmental toxins. The encoded protein is an organic cation transporter and plasma integral membrane protein containing eleven putative transmembrane domains as well as a nucleotide-binding site motif. Transport by this protein is at least partially ATP-dependent.