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SIT1 is a betaine/proline transporter that is activated in mouse eggs after fertilization and functions until the 2-cell stage

Anas, Mohamed-Kheir Idris; Lee, Martin B; Zhou, Chenxi; Hammer, Mary-Anne; Slow, Sandy; Karmouch, Jennifer; Liu, X. Johne; Broer, Stefan; Lever, Michael; Baltz, Jay M

Description

Betaine (N,N,N-trimethylglycine) added to culture media is known to substantially improve the development of preimplantation mouse embryos in vitro, and to be imported into 1-cell embryos by a transporter that also accepts proline. Here, we found that the betaine/proline transporter is active in preimplantation mouse embryos only for a short period of development, between the 1- and 2-cell stages. Betaine/proline transport was activated after fertilization, beginning ∼4 hours post-egg...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/49501
Source: Development
DOI: 10.1242/dev.026575

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