Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.

UbiA prenyltransferase domain containing 1 (UBIAD1) is a novel vitamin K2 biosynthetic enzyme screened and identified from the human genome database. UBIAD1 has recently been shown to catalyse the biosynthesis of Coenzyme Q10 (CoQ10) in zebrafish and human cells. To investigate the function of UBIAD...

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Autores principales: Kimie Nakagawa, Natsumi Sawada, Yoshihisa Hirota, Yuri Uchino, Yoshitomo Suhara, Tomoka Hasegawa, Norio Amizuka, Tadashi Okamoto, Naoko Tsugawa, Maya Kamao, Nobuaki Funahashi, Toshio Okano
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Publicado: Public Library of Science (PLoS) 2014
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spelling oai:doaj.org-article:e7ed1f2851a1412ab65cc76dc26668572021-11-25T06:04:35ZVitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.1932-620310.1371/journal.pone.0104078https://doaj.org/article/e7ed1f2851a1412ab65cc76dc26668572014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25127365/?tool=EBIhttps://doaj.org/toc/1932-6203UbiA prenyltransferase domain containing 1 (UBIAD1) is a novel vitamin K2 biosynthetic enzyme screened and identified from the human genome database. UBIAD1 has recently been shown to catalyse the biosynthesis of Coenzyme Q10 (CoQ10) in zebrafish and human cells. To investigate the function of UBIAD1 in vivo, we attempted to generate mice lacking Ubiad1, a homolog of human UBIAD1, by gene targeting. Ubiad1-deficient (Ubiad1(-/-)) mouse embryos failed to survive beyond embryonic day 7.5, exhibiting small-sized body and gastrulation arrest. Ubiad1(-/-) embryonic stem (ES) cells failed to synthesize vitamin K2 but were able to synthesize CoQ9, similar to wild-type ES cells. Ubiad1(+/-) mice developed normally, exhibiting normal growth and fertility. Vitamin K2 tissue levels and synthesis activity were approximately half of those in the wild-type, whereas CoQ9 tissue levels and synthesis activity were similar to those in the wild-type. Similarly, UBIAD1 expression and vitamin K2 synthesis activity of mouse embryonic fibroblasts prepared from Ubiad1(+/-) E15.5 embryos were approximately half of those in the wild-type, whereas CoQ9 levels and synthesis activity were similar to those in the wild-type. Ubiad1(-/-) mouse embryos failed to be rescued, but their embryonic lifespans were extended to term by oral administration of MK-4 or CoQ10 to pregnant Ubiad1(+/-) mice. These results suggest that UBIAD1 is responsible for vitamin K2 synthesis but may not be responsible for CoQ9 synthesis in mice. We propose that UBIAD1 plays a pivotal role in embryonic development by synthesizing vitamin K2, but may have additional functions beyond the biosynthesis of vitamin K2.Kimie NakagawaNatsumi SawadaYoshihisa HirotaYuri UchinoYoshitomo SuharaTomoka HasegawaNorio AmizukaTadashi OkamotoNaoko TsugawaMaya KamaoNobuaki FunahashiToshio OkanoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 8, p e104078 (2014)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Kimie Nakagawa
Natsumi Sawada
Yoshihisa Hirota
Yuri Uchino
Yoshitomo Suhara
Tomoka Hasegawa
Norio Amizuka
Tadashi Okamoto
Naoko Tsugawa
Maya Kamao
Nobuaki Funahashi
Toshio Okano
Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
description UbiA prenyltransferase domain containing 1 (UBIAD1) is a novel vitamin K2 biosynthetic enzyme screened and identified from the human genome database. UBIAD1 has recently been shown to catalyse the biosynthesis of Coenzyme Q10 (CoQ10) in zebrafish and human cells. To investigate the function of UBIAD1 in vivo, we attempted to generate mice lacking Ubiad1, a homolog of human UBIAD1, by gene targeting. Ubiad1-deficient (Ubiad1(-/-)) mouse embryos failed to survive beyond embryonic day 7.5, exhibiting small-sized body and gastrulation arrest. Ubiad1(-/-) embryonic stem (ES) cells failed to synthesize vitamin K2 but were able to synthesize CoQ9, similar to wild-type ES cells. Ubiad1(+/-) mice developed normally, exhibiting normal growth and fertility. Vitamin K2 tissue levels and synthesis activity were approximately half of those in the wild-type, whereas CoQ9 tissue levels and synthesis activity were similar to those in the wild-type. Similarly, UBIAD1 expression and vitamin K2 synthesis activity of mouse embryonic fibroblasts prepared from Ubiad1(+/-) E15.5 embryos were approximately half of those in the wild-type, whereas CoQ9 levels and synthesis activity were similar to those in the wild-type. Ubiad1(-/-) mouse embryos failed to be rescued, but their embryonic lifespans were extended to term by oral administration of MK-4 or CoQ10 to pregnant Ubiad1(+/-) mice. These results suggest that UBIAD1 is responsible for vitamin K2 synthesis but may not be responsible for CoQ9 synthesis in mice. We propose that UBIAD1 plays a pivotal role in embryonic development by synthesizing vitamin K2, but may have additional functions beyond the biosynthesis of vitamin K2.
format article
author Kimie Nakagawa
Natsumi Sawada
Yoshihisa Hirota
Yuri Uchino
Yoshitomo Suhara
Tomoka Hasegawa
Norio Amizuka
Tadashi Okamoto
Naoko Tsugawa
Maya Kamao
Nobuaki Funahashi
Toshio Okano
author_facet Kimie Nakagawa
Natsumi Sawada
Yoshihisa Hirota
Yuri Uchino
Yoshitomo Suhara
Tomoka Hasegawa
Norio Amizuka
Tadashi Okamoto
Naoko Tsugawa
Maya Kamao
Nobuaki Funahashi
Toshio Okano
author_sort Kimie Nakagawa
title Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
title_short Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
title_full Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
title_fullStr Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
title_full_unstemmed Vitamin K2 biosynthetic enzyme, UBIAD1 is essential for embryonic development of mice.
title_sort vitamin k2 biosynthetic enzyme, ubiad1 is essential for embryonic development of mice.
publisher Public Library of Science (PLoS)
publishDate 2014
url https://doaj.org/article/e7ed1f2851a1412ab65cc76dc2666857
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