SLC9B1, the full protein name is sodium/hydrogen exchanger 9B1, it’s also known as NHA1 or NHEDC1. SLC9B1 belongs to solute carrier family 9, subfamily B, and is encoded by the SLC9B1 gene in humans. It’s broadly expressed in testis, kidney and 17 other tissues. SLC9B1 is highly conservative in other mammalian species. It functions as a sodium/hydrogen exchanger. Multiple transcript variants encoding different isoforms have been found for this gene.
|Basic Information of SLC9B1|
|Protein Name||Sodium/hydrogen exchanger 9B1|
|Organism||Homo sapiens (Human)|
SLC9B1 is also known as NHA1, which belongs to proton exchangers and transporters family. It was identified specifically in testis for the first time in 2006, and it’s highly conserved in mammals including human, mouse, Macaca fascicularis and rat. Its family - SLC9B (including SLC9B1 and SLC9B2 members) belongs to the sodium/lithium hydrogen antiporter family, and plays the functions as solute exchangers within cellular membranes of mammalian tissues. SLC9B1 is a sperm-specific sodium/hydrogen exchanger involved in maintaining pH homeostasis of spermatozoa. Except for this, SLC9B1 also plays an important role in sperm motility and fertility. After that, SLC9B1 is found to be necessary for survival and shows different transporting functions compared with SLC9B2. In addition, the expression level of SLC9B1 can be regulated by DNA methylation-related mechanisms. Furthermore, DNA methylation patterns of SLC9B1 can predict fetal intolerance of labor.
Fig.1 SLC9B1 acts as an H+-Cl- cotransporter. (Chintapalli, 2015)
This article indicates that DNA methylation patterns of SLC9B1 can predict fetal intolerance of labor.
This article shows the identity between SLC9B1 and SLC9B2 and indicates that SLC9B1 originates from SLC9B2.
This article demonstrates that the expression level of SLC9B1 can be regulated by DNA methylation-related mechanisms.
This article shows that SLC9B1 and SLC9B2 are necessary for cell survival, and show different transporting functions.
This article shows SLC9B1 is identified specifically in testis for the first time.
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