[ccp4bb] Postdoctoral research opportunity

2021-08-18 Thread Brian Mark
Hello everyone,

A postdoc position is available in my lab to study the structural biology of 
infectious and genetic diseases.  Projects with crystals in-hand are available 
in two areas:  1) Inhibitor design projects targeting coronavirus proteases and 
proteases of related viruses, 2) Structure/function studies of lysosomal 
enzymes involved in genetic disease and the development of pharmacological 
chaperones to rescue their function.  For those with Cryo-EM experience, an 
additional project focused on understanding the structural biology of large 
viral polymerases is also available. Our lab has access to in-house X-ray 
diffraction instrumentation (Rigaku), on-going access to synchrotron sources 
including the Canadian Light Source, and a new in-house Talos F200C Cryo-EM 
outfitted with a Falcon 4 direct electron detector.  Additional information 
about our research and recent publications can be found at: 
http://home.cc.umanitoba.ca/~bmark/Welcome.html

Enthusiastic individuals who hold a PhD in biochemistry or related field are 
encouraged to apply. Candidates should have a strong background in molecular 
biology and protein X-ray crystallography. Experience in Cryo-EM would be an 
asset given projects available.

We are in the Department of Microbiology, University of Manitoba, Winnipeg, 
Canada. The University of Manitoba (http://umanitoba.ca/) hosts over 30,000 
students, faculty, and staff and has a dynamic biomedical research community.  
Winnipeg is a vibrant, multicultural city with numerous cultural events and 
festivals (https://www.tourismwinnipeg.com).

Salary will be in accordance with Canadian Institutes of Health Research (CIHR) 
(http://www.cihr.ca/ ) standards and includes a university staff benefits 
package.

All qualified candidates are encouraged to apply.

Please email inquiries and CV's (including names of three referees) to Brian 
Mark (brian.m...@umanitoba.ca).

All the best,

Brian Mark

==
Brian Mark, MSc, PhD
Dean, Faculty of Science
Professor, Department of Microbiology &
Department of Biochemistry and Medical Genetics
University of Manitoba

247 Machray Hall
186 Dysart Road
Winnipeg, Manitoba R3T 2N2
PH: 204-474-9348

Research Lab:  http://home.cc.umanitoba.ca/~bmark/
Biochem lab: (204) 480-1430
X-ray lab: (204) 474-8334




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[ccp4bb] Job opportunity

2017-08-24 Thread Brian Mark
Hello everyone,

I’d like to draw your attention to a job posting in the Faculty of Science, 
University of Manitoba, Canada.  We seek a technician to maintain and provide 
training on our X-ray diffraction and microscopy equipment in the faculty of 
science.  Please use the URL below to access the full job posting.

https://umanitoba.hua.hrsmart.com/ats/js_job_details.php?reqid=20906


Cheers,

Brian Mark

==
Brian Mark, MSc, PhD
Associate Professor
Department of Microbiology
& Department of Biochemistry and Medical Genetics

Mailing/Courier address:
Department of Microbiology
Rm 213 Buller Building
University of Manitoba
45 Chancellor's Circle
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://home.cc.umanitoba.ca/~bmark/Welcome.html



[ccp4bb] Assistant Professor position available

2016-10-21 Thread Brian Mark
Dear CCP4 community,

An Assistant Professor position in Microbiology or Biochemistry (Position # 
22809) is currently open in the Department of Microbiology, University of 
Manitoba, Canada.  Structural biology (mainly X-ray crystallography) is a key 
strength of our Department and so we are encourage applicants with such a 
background to apply.  Please see the ad below for details. For further 
information contact the Search Committee Chair at 
mailto:deborah.co...@umanitoba.ca>>.  The closing 
date for receipt of applications is Friday, January 6, 2017

———

The Department of Microbiology invites applications for a full-time 
tenure-track position at the Assistant Professor level, commencing July 1, 
2017, or on a date hing and research.  Outstanding candidates in any area of 
Microbiology or Biochemistry will be considered, with particular emphasis on 
candidates who will complement or extend the department’s strengths. The 
successful candidate will have a Ph.D. and preferably post-doctoral experience 
or industry experience or other distinguishing attributes in host-microbe 
interactions, antibiotic resistance and drug discovery, structural biology, 
protein and membrane biochemistry, systems microbiology, and industrial and 
applied microbiology, or a related field.  Duties will involve research, 
including the establishment of an externally funded research program, 
undergraduate teaching, graduate teaching and supervision, and service-related 
activities. The successful candidate will have a track record of high quality 
scholarly research leading to peer assessed publications; will either have, or 
demonstrate the potential to establish, an independent, innovative, scholarly, 
externally fundable research program; will have demonstrated strength in or 
strong potential for outstanding teaching contributions; and will exhibit 
evidence of the ability to work in a collaborative environment. Salary will be 
commensurate with experience and qualifications.

To enhance our department and create role models for a diverse population of 
students, we particularly invite application from those who can support and 
enhance our diversity, including women, Indigenous peoples, other visible 
minorities, and those committed to a diverse environment.

The Department currently has twelve full time tenured and tenure track faculty 
members and three Instructors, and offers a full range of both undergraduate 
and graduate programs in Microbiology and Biochemistry. The Department has a 
well-established and equipped research facility, including X-ray 
crystallography and large scale mammalian and prokaryotic cell culture 
facilities, as well as access to state of the art light microscopy, electron 
microscopy, and small angle x‑ray scattering instrumentation, and is supported 
by strong research links with other University of Manitoba departments 
including Chemistry, Biological Sciences, Physics, Biosystems Engineering, 
Biochemistry and Medical Genetics, and Plant Science and with the National 
Microbiology Laboratory of the Public Health Agency of Canada in Winnipeg.  
Further information about the Department can be obtained from 
http://sci.umanitoba.ca/microbiology>>. 
Winnipeg is the largest city in the Province of Manitoba. The city has a rich 
cultural environment, including symphony, opera, dance, theatre, and ethnic 
festivals and professional hockey and football. The region provides ample 
opportunities for outdoor recreation in all seasons. Learn more about Winnipeg 
at .

The University of Manitoba is strongly committed to equity and diversity within 
its community and especially welcomes applications from women, members of 
racialized communities, Indigenous persons, persons with disabilities, persons 
of all sexual orientations and genders, and others who may contribute to the 
further diversification of ideas. All qualified candidates are encouraged to 
apply; however, Canadian citizens and permanent residents will be given 
priority.

Applications including a curriculum vitae, a description of teaching 
philosophy, a summary of research interests, a three page research plan and 
contact information for three references should be sent to 
 (a single PDF file is preferred).  Please ensure 
to specify position number 22809 in the application.  For further information 
contact the Search Committee Chair at .  The 
closing date for receipt of applications is Friday, January 6, 2017.  
Application materials, including letters of reference, will be handled in 
accordance with the Freedom of Information and Protection of Privacy Act. 
Please note that curricula vitae may be provided to participating members of 
the search process.



Brian

======
Brian Mark, MSc, PhD
Associate Professor
Department of Microbiology
& Department of Biochemistry and Medical Genetics

Mailing/Courier address:
Department of Microbiology
Rm 213 Buller Building
Universit

Re: [ccp4bb] anti-His6 Ab

2013-03-15 Thread Brian Mark
Hi Elias,

Not sure if you've looked at this option, but Pierce sells a polyHis tag 
detection kit that is not based on an antibody, but instead is a 
"nickel-activated" derivative of HRP.  Has worked quite well for us in the past.

Brian Mark


On 2013-03-15, at 12:36 PM, Elias Fernandez 
mailto:efern...@utk.edu>>
 wrote:

Dear All, would you be able to recommend a primary anti-His6 Ab for western 
blotting? Thus far, the ones we’ve used are not very specific to the N-terminal 
hexahistidines and we pick up lots of background. Also, there’s one (others?) 
from Sigma that is conjugated to HRP, but costs ~$650. Thanks! Elias



[ccp4bb] Postdoctoral research opportunity

2013-03-05 Thread Brian Mark
Greetings everyone.  I'd like to call your attention to the following postdoc 
opportunity:

Postdoctoral research opportunity in antibiotic drug resistance

Applications are invited for a postdoctoral position to study the structural 
biology of proteins and enzymes that comprise AmpC beta-lactamase induction 
pathway. Beta-lactam antibiotics act to disrupt bacterial cell wall metabolism. 
 Numerous bacterial pathogens respond to this disruption by inducing the 
expression of AmpC beta-lactamase.  AmpC is of considerable clinical concern 
since it confers broad-spectrum resistance against beta-lactams. We focus on 
understanding the structural biology of bacterial cell wall metabolism and the 
development small molecule based strategies to block AmpC gene expression 
during antibiotic therapy.  Additional information about our research and 
recent publications in the area can be found at: 
http://home.cc.umanitoba.ca/~bmark/Welcome.html

We seek an enthusiastic, hard working individual who holds a PhD in 
biochemistry or related field. Candidates should have a strong background in 
molecular biology and protein X-ray crystallography. Experience in membrane 
protein crystallography would be an asset.

We are located in the Department of Microbiology, University of Manitoba, 
Winnipeg, Canada. The laboratory offers state-of-the-art X-ray instrumentation 
(Rigaku), crystallization robotics (Art Robbins), and on-going user access to 
the Canadian Light Source Synchrotron via mail-in service, remote robotics, or 
in-person visits.

The University of Manitoba (http://umanitoba.ca/) is the largest University in 
the province (over 30,000 students, faculty, and staff) and hosts a dynamic 
biomedical research community.  Winnipeg is a vibrant, multicultural city with 
numerous cultural events and festivals (http://www.destinationwinnipeg.ca/).

Salary will be in accordance with the Canadian Institutes of Health Research 
(CIHR) (http://www.cihr.ca/ ) standards.  The position also includes a 
University benefits package.

All qualified candidates are encouraged to apply.  Please direct inquiries, 
including a cover letter, brief description of your career goals and CV 
(including names of three referees) to Brian Mark at the following email 
address:

brian.m...@ad.umanitoba.ca<mailto:brian.m...@ad.umanitoba.ca>

=====
Brian Mark, MSc, PhD
Associate Professor
Manitoba Research Chair in Structural Biology
Department of Microbiology
& Department of Biochemistry and Medical Genetics

Mailing/Courier address:
Department of Microbiology
Rm 418 Buller Building
University of Manitoba
45 Chancellor's Circle
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://home.cc.umanitoba.ca/~bmark/Welcome.html



[ccp4bb] Postdoctoral position available

2011-06-28 Thread Brian Mark
POSTDOCTORAL POSITION AVAILABLE

Applications are invited for a postdoctoral position to investigate the 
structural and cellular biology of viral immune evasion tactics and assembly 
mechanisms of Bunyaviruses, the largest family of negative-strand RNA viruses.  
The family Bunyaviridae includes a number of emerging viruses of human and 
agricultural importance and much remains to be discovered about their life 
cycle and the mechanisms they use to subvert the innate immune system.  
The following is an example of our recent work in this area:  James TW, et al. 
(2011). Proc Natl Acad Sci U S A. 108(6):-7.

A number of exciting projects are underway and ready to carry forward.  More 
information about our lab can be found at: 
http://home.cc.umanitoba.ca/~bmark/Welcome.html
 
We seek enthusiastic applicants who hold a PhD in biochemistry or related 
field. Candidates must have a strong background in molecular biology and 
protein X-ray crystallography. Expertise in mammalian cell culture and 
fluorescence microscopy would be considered strong assets.
 
Our group is located in the Department of Microbiology, University of Manitoba, 
Winnipeg, Canada. The laboratory includes state-of-the-art X-ray 
instrumentation (Rigaku) and crystallization robotics (Art Robbins).  We have 
routine access to the Canadian Light Source Synchrotron via mail-in service, 
remote control of robotics, or in person (within driving distance).
 
The University of Manitoba (http://umanitoba.ca/) is the largest University in 
the province (over 30,000 students, faculty, and staff) and hosts a dynamic 
biomedical research community.  Winnipeg is a vibrant, multicultural city with 
numerous cultural events, festivals and a brand new NHL hockey team 
(http://www.destinationwinnipeg.ca/).  With over 110,000 fresh water lakes in 
our province alone, there is also much to explore for those who love the 
outdoors.
 
Salary will be in accordance with the Canadian Institutes of Health Research 
(CIHR) (http://www.cihr.ca/ ) standards.  Fellowship funding is also available 
through agencies such as the CIHR and the Manitoba Health Research Council 
(MHRC) (http://www.mhrc.mb.ca/).
 
All qualified candidates are encouraged to apply.
 
Please direct formal and informal inquiries and CV's (including names of three 
referees) to my email address:
 
brian_m...@umanitoba.ca


=
Brian Mark, MSc, PhD
Associate Professor
Manitoba Research Chair in Structural Biology
Department of Microbiology
& Department of Biochemistry and Medical Genetics

Mailing/Courier address:
Department of Microbiology
418 Buller Building
University of Manitoba
Winnipeg, Manitoba 
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://home.cc.umanitoba.ca/~bmark/Welcome.html








[ccp4bb] 96-well block storage

2011-06-14 Thread Brian Mark
Hi all,

Considering the popularity of 96-well deep well block format for purchasing and 
storing protein crystallization conditions, I'm surprised that a better 
re-sealing system has not been invented to prevent evaporation from the blocks 
when they are stored.  We typically don't consume our blocks fast enough to 
avoid this issue.  There must be a better way to re-seal these blocks other 
than using peel and stick foil tape over and over again...

Would anyone like to share their optimal method for storing 96-wells blocks 
that avoids (or a least minimizes) evaporation?

Cheers, 

Brian Mark


[ccp4bb] postdoctoral position

2009-07-16 Thread Brian Mark

Postdoctoral position available:
Applications are invited for a postdoctoral position to investigate  
the structure and biochemistry of proteins involved in Gram-negative  
bacterial cell wall recycling. Peptidoglycan metabolites produced  
during cell wall turnover are found to regulate an increasing number  
of bacterial processes, including the induction of antibiotic  
resistance in a number bacterial species that cause opportunistic  
infections in humans.  We are focused on understanding the biology of  
the cell wall recycling pathway, with the goal of developing small  
molecule based strategies to disrupt the pathway and suppress  
antibiotic resistance mechanisms that are coupled to it (J. Biol.  
Chem. 2007; 282:21382-91, 2009 Antimicrob Agents Chemother. 2009  
53:2274-82, Protein Sci. 2009;18:1541-51).  A number of projects are  
well advanced, some with crystals already in-hand.  More project  
information can be found at:  http://umanitoba.ca/faculties/science/microbiology/staff/mark/
We seek enthusiastic applicants who hold a PhD in biochemistry or  
related field. Candidates should have a strong background in molecular  
biology, protein purification/crystallization and protein X-ray  
crystallography.
Our group is located in the Department of Microbiology, University of  
Manitoba, Winnipeg, Manitoba, Canada. The laboratory includes state-of- 
the-art Rigaku instrumentation (Micromax 007 HF, X-stream cryosystem  
and R-axis 4++ detector) and has access to the newly commissioned  
Canadian Light Source Synchrotron, which is a short drive away.
The University of Manitoba (http://umanitoba.ca/) is the largest  
University in the province (over 30,000 students, faculty, and staff)  
and hosts a large, interactive biomedical research community.   
Winnipeg is a vibrant, multicultural city with an outstanding  
performing arts scene, numerous cultural events and festivals, and  
great dining (http://www.destinationwinnipeg.ca/).  With over 110,000  
fresh water lakes in our province alone, there is also much to explore  
for those who love the outdoors.
Salary will be in accordance with the Canadian Institutes of Health  
Research (CIHR) (http://www.cihr.ca/ ) standards.  Fellowship funding  
is also available through agencies such as the CIHR and the Manitoba  
Health Research Council (MHRC) (http://www.mhrc.mb.ca/).
The University of Manitoba encourages applications from qualified  
women and men, including members of visible minorities, Aboriginal  
peoples, and persons with disabilities.  All qualified candidates are  
encouraged to apply.
Please direct inquiries and CV's (including names of three referees)  
to the following email address:

brian_m...@umanitoba.ca

=
Brian L. Mark, MSc, PhD
Assistant Professor
Department of Microbiology
Room 418, Buller Building
University of Manitoba
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://www.umanitoba.ca/science/microbiology/staff/mark/




Re: [ccp4bb] Crystallographic computing platform recommendations?

2008-11-18 Thread Brian Mark

Francis,

From your response and others to my question about OS X server 10.5,  
AFP seems to be the preferred networking protocol over NFS.  Yes, in  
our case the RAID is connected to a G5 (via firewire 800 - which  
provides surprisingly good transfer rates BTW) that is running OS X  
server 10.5 .  I'll try AFP for the user home directories.


Thanks,

Brian


On 18-Nov-08, at 6:21 PM, Francis E Reyes wrote:


On Nov 18, 2008, at 9:57 AM, Brian Mark wrote:


Hi all,

With all the talk about Mac OS X, I've not heard much mention about  
OS X Server and networking Macs together.  Is anyone using the 10.5  
server and LDAP to centrally house user directories on a RAID  
connected to a Mac server for example?





We run 10.5 server with OpenDirectory (LDAP for Apple) over AFP (no  
raid) with 10.5 clients.



We had this setup running with 10.4, but we now seem to have issues  
getting the server 10.5 to export the RAID to the clients via NFS.   
I know NSF is old, but our network is behind a firewall and it has  
worked well for us.  It seem if you don't set things up the way  
Apple recommends (using AFP for example), things can get difficult...


It's quite possible that we are missing something during the setup,  
but frankly I'm surprised at how difficult it has been to work with  
OS X server.




Is the RAID directly connected to the server?  i.e. does OS X server  
host the nfs server or is it a unix machine? the requirements for  
specifying an nfs home dir are tricky. Check the Admin reference  
volume 1 book.


I would be happy to hear about other people's experience with OS X  
server 10.5.  Perhaps a website describing OS X server for  
crystallographic computing/networking would be nice if it doesn't  
exist already.




As I said above we have leopard clients bound to an OSX server using  
OD and AFP home directories.  All the clients are imaged to the same  
version of OSX  Leopard and crystallography software (managed by  
fink mostly). If there's a prudent need for upgrading, I have a  
bootable firewire drive that I load onto one of the clients and do  
the updating, then image the software to the server and use Netboot/ 
Netinstall to distribute the image to the clients.


Any more questions let me know

FR


-
Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D

8AE2 F2F4 90F7 9640 28BC  686F 78FD 6669 67BA 8D5D



Re: [ccp4bb] Crystallographic computing platform recommendations?

2008-11-18 Thread Brian Mark

Hi all,

With all the talk about Mac OS X, I've not heard much mention about OS  
X Server and networking Macs together.  Is anyone using the 10.5  
server and LDAP to centrally house user directories on a RAID  
connected to a Mac server for example?


We had this setup running with 10.4, but we now seem to have issues  
getting the server 10.5 to export the RAID to the clients via NFS.  I  
know NSF is old, but our network is behind a firewall and it has  
worked well for us.  It seem if you don't set things up the way Apple  
recommends (using AFP for example), things can get difficult...


It's quite possible that we are missing something during the setup,  
but frankly I'm surprised at how difficult it has been to work with OS  
X server.


I would be happy to hear about other people's experience with OS X  
server 10.5.  Perhaps a website describing OS X server for  
crystallographic computing/networking would be nice if it doesn't  
exist already.


Cheers,

Brian

=
Brian L. Mark, MSc, PhD
Assistant Professor
Department of Microbiology
Room 418, Buller Building
University of Manitoba
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://www.umanitoba.ca/science/microbiology/staff/mark/


On 18-Nov-08, at 9:42 AM, Anastassis Perrakis wrote:


On Nov 18, 2008, at 16:26, William G. Scott wrote:


On Nov 18, 2008, at 7:01 AM, Mischa Machius wrote:


For linux, I would recommend a commercial solution,



For linux, I actually ditched the commercial solution for Ubuntu,  
because it was vastly easier as a non-expert to maintain.


Having said that, like you, I have found running Mac OS X to be the  
most cost-effective in terms of time and utility.




Same here. Lets also say that I have seen many people in the lab  
switch from Linux and Windows to OSX, but nobody from OSX back to  
Windows or Linux. That must be saying something.


We still use btw Linux workstations for stereo and I am happy with  
them as well.


As Harry says, choose what you are most comfortable with(*).

A.

(*) If thats Windows Vista  though, take a break and meditate, think  
of the bigger picture of life,
donate to the Bill Gates foundation which is what Bill Gates should  
be remembered for,

and find the nearest MacStore. ;-)


Bill






Re: [ccp4bb] Co-expression plasmids

2008-04-02 Thread Brian Mark

Hi Mark,

Proper co-expression in trans requires that you use plasmids each with  
different origins of replication and antibiotic markers, such as p15 +  
Kan and ColE1 + Amp.  I think the pET vectors of the DUET system use  
these two origins (p15 and ColE1).  This ensures much more efficient  
dual transformation and proper plasmid stability over time.  The two  
backbone constructions above are used in a variety of pET vectors, so  
if you look for this detail, you can co-transform and co-express from  
many available plasmids and customize as you like.  Suppliers will  
tell you the origins that are used in each of the plasmids they sell.


Cheers,

Brian

=
Brian L. Mark, MSc, PhD
Assistant Professor
Department of Microbiology
Room 418, Buller Building
University of Manitoba
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://www.umanitoba.ca/science/microbiology/staff/mark/


On 2-Apr-08, at 8:55 AM, Mark J. van Raaij wrote:


Dear All,

Anyone have experience with the NovaGen Duet co-expression vectors?  
Or can recommend others?

http://www.emdbiosciences.com/html/NVG/Duet_Spot.html

Greetings,

Mark

Mark J. van Raaij
Dpto de Bioquímica, Facultad de Farmacia
Universidad de Santiago
15782 Santiago de Compostela
Spain
http://web.usc.es/~vanraaij/











[ccp4bb] Additive screens

2007-04-12 Thread Brian Mark

Hello everyone,

Does anyone have suggestions or comments on the various additive  
screens that are available?


I was looking at the kit from Hampton (HR2-138 Additive Screen HT) in  
96-well format.  It appears that it should be straight forward to  
array out our current protein/mother liquor condition into a 96-plate  
and then add in the additives from the deep-well block provided by  
the company.  The additives come 10x concentrated in a 96-well deep- 
well block for dilution into the arrayed crystallization condition.


Does anyone do this routinely for the crystals they grow?  It would  
be interesting to know how often people find a systematic approach  
using such a kit actually improves the quality/size etc. of their  
crystals.


Cheers,

Brian

---
Brian L. Mark, MSc, PhD
Department of Microbiology
Room 418, Buller Building
University of Manitoba
Winnipeg, Manitoba
CANADA R3T 2N2

Phone (204) 480-1430
Fax (204) 474-7603
Web:  http://www.umanitoba.ca/science/microbiology/staff/mark/