A lovely free-shipping item that warms my heart

Work on exp at midnight is usual, but this cute 8 RMB (~1.2 USD) free-shipping combination bucket really made my day. Can’t believe that I just purchased it yesterday! The outer packaging, size, color, quality… are all out of my expectations!

Sharing a poem……

I wandered lonely as a Cloud_William Wordsworth_

I wandered lonely as a Cloud
   That floats on high o’er Vales and Hills,
When all at once I saw a crowd,
   A host of golden Daffodils;
Beside the Lake, beneath the trees,
Fluttering and dancing in the breeze.

Continuous as the stars that shine
   And twinkle on the Milky Way,
They stretched in never-ending line
   Along the margin of a bay:
Ten thousand saw I at a glance,
Tossing their heads in sprightly dance.

The waves beside them danced, but they
   Out-did the sparkling waves in glee:—
A Poet could not but be gay
   In such a jocund company:
I gazed—and gazed—but little thought
What wealth the shew to me had brought:

For oft when on my couch I lie
   In vacant or in pensive mood,
They flash upon that inward eye
   Which is the bliss of solitude,

And then my heart with pleasure fills,
And dances with the Daffodils.

No words to express my happiness when I open this free-shipping package after ended today’s exp at the midnight. What a wonderful night!

EndNote plug-in in word cannot link to local library

EndNote plug-in in word cannot work (cannot link to the local library of Endnote) after installation?  If the interface is like this, then yes:

To deal with this matter:

(photos are from Baidu/Jingyan/漂小浮, EndNote X8)

The interface of plug-in when problem solved (EndNote X9):

* The drop-down list box of “Insert Citation” back

To remember:  ask Baidu in Chinese usually more efficient than Google if the Softwares are of Chinese edition.  This problem I find no answers using Google search (in English).

 

 

CRISPR/Cas9 off-targets detection

The CRISPR/Cas9 technology is hot in all areas of bio-med study. It’s useful and easy to handle in modifying all kinds of genes of varied cells. However, the off-target effects of CRISPR/Cas9 sgRNA are unavoidable, thus leading to potential risks of gene modified cells to be used in future in vitro or in vivo study, especially when the cells are going to be used in clinical research.

To detect the off-target sites of CRISPR/Cas9 in gene modified cells is vital. Usually, we first obtain the DNA sequence of off-target sites (OTSs) by input our sgRNA sequence into the website “Cas-OFFinder”, and then we detect the off-targets efficiency of genome DNA in CRISPR/Cas9 excised cells at a certain time post plasmid transduction. If there’re lots of OTSs or the OTSs are in key function genes, we need to think about redesign sgRNA or reschedule the study.

The procedure to detect off-targets when the gene modified cell lines are already established:

    1. “Cas-OFFinder” get the list of all off-target sites within 3 mismatches and without bulge
    2. “UCSC_human BLAT search” get exact genomic location info of all OTSs
    3. “UCSC_human BLAT search” get about ~600bp sequence that carrying each OTS (the flanking sequences of OTS) to be PCR template
    4. “NCBI_PrimerBlast” design PCR primers for each OTS
    5. extract DNA of cell lines
    6. PCR to amplify the DNA sequences that carrying OTS
    7. PCR products purifying
    8. Send for Sanger sequencing of purified DNA sequences to detect mutations
    9. Mutation exist means off-target positive
    10. To further detect the OT efficiency (ratio of each analyzed OTS): transfect the parental cells of gene modified cell lines again using the same method that established the cell line/ get 2dpt pooled cells to extract genome DNA and send for deep sequencing for each OTS.

Those above are my way to detect off-targets, please leave your comments down below if I made mistakes or you have other suggestions and opinions to share with me!