Sunday, October 15, 2006
花栗鼠站出來
昨天看到凡凡的能耐,覺得 crib 的柵欄大概低了些,可能凡凡腳用力一蹬就可以翻牆而出,所以今天動手將 crib 的床面放低,想這樣應該就安全些了。凡凡習慣先抓柵欄的上緣再用力起身,改成這樣大概一時還不能適應,一開始頭就撞了一下,不過好像沒事一樣,大概不會痛的樣子。努力一陣果然又成功了,而且可抓的地方較高,兩腳可以站得很直,站得更穩。大概是很開心吧,凡凡後來還想去打開 mobile 來展一下他有多能幹。
站穩後就發現這高度剛好,正適合磨牙,所以就表演花栗鼠的動作給大家看看。
覓食
現在真的很有體力也很能動,能爬的地方就爬,能站的地方就站,能抓的東西就抓,能吃的東西就吃,不能吃的東西也是照吃。只是奶瓶太大手太小不容易抓穩,加上正在打嗝,一不小心就失去平衡,不過,摔倒事小,到手的奶瓶當然還是得死抓著不放啊。
Cooperation between Mitotic Kinesins Controls the Late Stages of Cytokinesis
Current Biology 16:301 (2006/02)
Francis Barr @ Max-Planck-Institute of Biochemistry
There are two possible Aurora B phosphorylation sites in MKLP1, S821 and S911. Due to the failure in generating phospho-S821-specific antibody, only S911 was addressed in this paper. Authors showed that Aurora B phosphorylates MKLP1 S911 during anaphase. The S911A mutant did not cause any defect in early stages of cytokinesis, including contractile ring build-up and furrow ingression. However, this phosphorylation on S911 is required for MKLP1 stay at the midzone/midbody during late cytokinesis. A bipartite NLS in MKLP1 was disrupted by S911 phosphorylation so MKLP1 will not be recruited back to nucleus after nuclear membranes reformed.
Plk1, Cdk1, and Aurora B were all tested and only Aurora B could phosphorylate MKLP1 S911 both in vitro and in vivo. Besides, MKLP2 is required for this phosphorylation since it regulates the translocation of Aurora B in cytokinesis. Unfortunately authors didn’t address how the mislocalization of MKLP1 causes cytokinesis failure during late stages. The only evidence authors had is a increase of binucleate cell percetage. It is just not solid enough.
Unlike vertebrates and Drosophila, C. elegans appears to lack MKLP2. Besides, S911-containing NLS region in C-terminus of mammalian MKLP1 is absent from the C. elegans homolog ZEN-4. It suggests this regulatory mechanism is specific for vertebrates and either does not occur in C. elegans or involves a different mechanism. The second site, S812 in the tail region downstream of the actin binding domain, is conserved in ZEN-4, where it is required for regulation of the late stages of cytokinesis. Whether MKLP2 is also required for S812 phosphorylation in human cells and for other Aurora B substrates such as Cyk-4 (MgcRacGAP), is still unknown.
Francis Barr @ Max-Planck-Institute of Biochemistry
There are two possible Aurora B phosphorylation sites in MKLP1, S821 and S911. Due to the failure in generating phospho-S821-specific antibody, only S911 was addressed in this paper. Authors showed that Aurora B phosphorylates MKLP1 S911 during anaphase. The S911A mutant did not cause any defect in early stages of cytokinesis, including contractile ring build-up and furrow ingression. However, this phosphorylation on S911 is required for MKLP1 stay at the midzone/midbody during late cytokinesis. A bipartite NLS in MKLP1 was disrupted by S911 phosphorylation so MKLP1 will not be recruited back to nucleus after nuclear membranes reformed.
Plk1, Cdk1, and Aurora B were all tested and only Aurora B could phosphorylate MKLP1 S911 both in vitro and in vivo. Besides, MKLP2 is required for this phosphorylation since it regulates the translocation of Aurora B in cytokinesis. Unfortunately authors didn’t address how the mislocalization of MKLP1 causes cytokinesis failure during late stages. The only evidence authors had is a increase of binucleate cell percetage. It is just not solid enough.
Unlike vertebrates and Drosophila, C. elegans appears to lack MKLP2. Besides, S911-containing NLS region in C-terminus of mammalian MKLP1 is absent from the C. elegans homolog ZEN-4. It suggests this regulatory mechanism is specific for vertebrates and either does not occur in C. elegans or involves a different mechanism. The second site, S812 in the tail region downstream of the actin binding domain, is conserved in ZEN-4, where it is required for regulation of the late stages of cytokinesis. Whether MKLP2 is also required for S812 phosphorylation in human cells and for other Aurora B substrates such as Cyk-4 (MgcRacGAP), is still unknown.
Saturday, October 14, 2006
Friday, October 13, 2006
I Like the Way
這歌在去年底是可口可樂的電視廣告歌,是我覺得畫面和音樂配合的最好的可樂廣告。有時要寫東西或者騎車時會拿來聽,提振一下精神。
I Like the Way / Bodyrockers
MV version
Live version
There's so many things I like about you / I / I just don't know where to begin / I like the way you look at me with those beautiful eyes / I like the way you act all surprised / I like the way you sing along / I like the way you always get it wrong / I like the way you clap your hands / I like the way you love to dance / I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
I Like the Way / Bodyrockers
MV version
Live version
There's so many things I like about you / I / I just don't know where to begin / I like the way you look at me with those beautiful eyes / I like the way you act all surprised / I like the way you sing along / I like the way you always get it wrong / I like the way you clap your hands / I like the way you love to dance / I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
I like the way you put your hands up in the air / I like the way you shake your hair / I like the way you like to touch / I like the way you stare so much / But most of all / Yeah / Most of all / I like the way you move / I like the way you move
Black TGIF
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