Organic cation transport protein

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An organic cation transport protein mediates the transport of organic cations across the cell membrane. These proteins are members of the solute carrier family, subfamily 22. This family of proteins can also transport zwitterions and anions, though it is a different subfamily of solute carrier proteins than the organic anion transporters.

Proteins

AbbreviationProtein nameLocationTransported solute(s)Associated disorder(s)
SLC22A1 Solute carrier family 22 member 1Liver, brain (cerebellum)
SLC22A2 Solute carrier family 22 member 2Primarily in kidney, also in brain
SLC22A3 Solute carrier family 22 member 3Brain and kidney Histamine, dopamine, serotonin, norepinephrine, MPP+
SLC22A4 Solute carrier family 22 member 4Sodium ion and ergothioneine
SLC22A5 Solute carrier family 22 member 5 Primary carnitine deficiency
SLC22A6 Solute carrier family 22 member 6
SLC22A7 Solute carrier family 22 member 7
SLC22A8 Solute carrier family 22 member 8
SLC22A9 Solute carrier family 22 member 9
SLC22A10 Solute carrier family 22 member 10
SLC22A11 Solute carrier family 22 member 11
SLC22A12 Solute carrier family 22 member 12Kidney Uric acid Hyperuricemia and hypouricemia
SLC22A13 Solute carrier family 22 member 13
SLC22A14 Solute carrier family 22 member 14
SLC22A15 Solute carrier family 22 member 15
SLC22A16 Solute carrier family 22 member 16
SLC22A17 Solute carrier family 22 member 17
SLC22A18 Solute carrier family 22 member 18 Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocortical carcinoma, and lung, ovarian, and breast cancer
SLC22A19 Solute carrier family 22 member 19
SLC22A20 Solute carrier family 22 member 20

Related Research Articles

The solute carrier (SLC) group of membrane transport proteins include over 400 members organized into 66 families. Most members of the SLC group are located in the cell membrane. The SLC gene nomenclature system was originally proposed by the HUGO Gene Nomenclature Committee (HGNC) and is the basis for the official HGNC names of the genes that encode these transporters. A more general transmembrane transporter classification can be found in TCDB database.

Transport protein Protein that moves other materials within an organism

A transport protein is a protein that serves the function of moving other materials within an organism. Transport proteins are vital to the growth and life of all living things. There are several different kinds of transport proteins.

SLC22A4

Solute carrier family 22, member 4, also known as SLC22A4, is a human gene; the encoded protein is known as the ergothioneine transporter.

Solute carrier organic anion transporter family member 1B1

Solute carrier organic anion transporter family member 1B1 is a protein that in humans is encoded by the SLCO1B1 gene. Pharmacogenomic research indicates that genetic variations in this gene are associated with response to simvastatin. Clinical guidelines exist that can guide dosing of simvastatin based on SLCO1B1 gene variant using genotyping or whole exome sequencing.

SLC22A11

Solute carrier family 22 member 11 is a protein that in humans is encoded by the SLC22A11 gene.

SLC22A12

Solute carrier family 22, member 12, also known as SLC22A12 and URAT1, is a protein which in humans is encoded by the SLC22A12 gene.

Solute carrier organic anion transporter family member 1B3

Solute carrier organic anion transporter family member 1B3 (SLCO1B3) also known as organic anion-transporting polypeptide 1B3 (OATP1B3) is a protein that in humans is encoded by the SLCO1B3 gene.

Solute carrier organic anion transporter family member 1A2

Solute carrier organic anion transporter family member 1A2 is a protein that in humans is encoded by the SLCO1A2 gene.

Solute carrier organic anion transporter family member 2B1

Solute carrier organic anion transporter family member 2B1 also known as organic anion-transporting polypeptide 2B1 (OATP2B1) is a protein that in humans is encoded by the gene SLCO2B1.

Solute carrier organic anion transporter family member 4A1

Solute carrier organic anion transporter family member 4A1 is a protein that in humans is encoded by the SLCO4A1 gene.

SLC22A7

Solute carrier family 22 member 7 is a protein that in humans is encoded by the gene SLC22A7.

SLC22A9

Solute carrier family 22 member 9 is a protein that in humans is encoded by the SLC22A9 gene.

Solute carrier organic anion transporter family member 3A1

Solute carrier organic anion transporter family member 3A1 is a protein that in humans is encoded by the SLCO3A1 gene.

SLC22A25

Solute carrier family 22 member 25 (SLC22A25), also known as organic anion transporter UST6, is a protein that in humans is encoded by the SLC22A25 gene.

Solute carrier organic anion transporter family member 2A1

Solute carrier organic anion transporter family member 2A1, also known as the prostaglandin transporter (PGT), is a protein that in humans is encoded by the SLCO2A1 gene.

Members of the organic solute transporter (OST) family have been characterized from a small bottom feeding species of fish called the little skate, Raja erinacea. Members have also been characterized from humans and mice. The OST family is a member of the larger group of secondary carriers, the APC superfamily.

The amino acid-polyamine-organocation (APC) superfamily is the second largest superfamily of secondary carrier proteins currently known, and it contains several Solute carriers. Originally, the APC superfamily consisted of subfamilies under the transporter classification number. This superfamily has since been expanded to include eighteen different families.

Solute carrier organic anion transporter family member 4c1

Solute carrier organic anion transporter family member 4C1 is a protein that in humans is encoded by the SLCO4C1 gene, which is located on chromosome 5q21. The OATP4C1 protein is expressed in the basolateral membrane of the nephron of the human kidney, where it is involved in the uptake of organic anions for elimination in the urine. The drug digoxin is an important substrate of this transporter.

Members of the Organo Anion Transporter (OAT) Family are membrane transport proteins or 'transporters' that mediate the transport of mainly organic anions across the cell membrane. Therefore, OATPs are present in the lipid bilayer of the cell membrane, acting as the cell's gatekeepers. OATPs belong to the Solute Carrier Family (SLC) and the major facilitator superfamily.

SLC22A14

Solute carrier family 22 member 14 is a protein that in humans is encoded by the SLC22A14 gene.

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