Re: [ccp4bb] PhD position at University of Oslo

2021-09-27 Thread Nikolina Sekulic
One more week to apply!

On Wed, Sep 1, 2021 at 9:56 AM Nikolina Sekulic 
wrote:

> Dear colleagues,
>
>
> I wish to draw your attention to PhD position open in my laboratory.
>
>
> A 3-year PhD research fellowship is available in the Group of Structural
> Biology and Chromatin.
>
> The Group of Structural Biology and Chromatin (Sekulic group) investigates
> chromatin biology and epigenetics with a biochemical and structural
> approach. The project aims at understanding changes in chromatin during
> mitosis and kinetochore formation. We use various biochemical and
> biophysical approaches (cryo-EM, X-ray crystallography, SAXS, SANS,
> hydrogen-deuterium exchange ...). In addition, we collaborate with cell
> biology groups to link structure with function.
>
> For more information and application use the link
>
>
> https://www.jobbnorge.no/en/available-jobs/job/211039/phd-research-fellowship-in-chromatin-and-structural-biology
>
> Best,
>
> Nikolina
>
>
> Nikolina Sekulic, PhD
> Group leader, Structural Biology and Chromatin
> Centre for Molecular Medicine Norway, NCMM
> Gaustadalléen 21
> Forskningsparken0349 OSLOOffice: +47 22840511
>
>



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[ccp4bb] PhD position at University of Oslo

2021-09-01 Thread Nikolina Sekulic
Dear colleagues,


I wish to draw your attention to PhD position open in my laboratory.


A 3-year PhD research fellowship is available in the Group of Structural
Biology and Chromatin.

The Group of Structural Biology and Chromatin (Sekulic group) investigates
chromatin biology and epigenetics with a biochemical and structural
approach. The project aims at understanding changes in chromatin during
mitosis and kinetochore formation. We use various biochemical and
biophysical approaches (cryo-EM, X-ray crystallography, SAXS, SANS,
hydrogen-deuterium exchange ...). In addition, we collaborate with cell
biology groups to link structure with function.

For more information and application use the link

https://www.jobbnorge.no/en/available-jobs/job/211039/phd-research-fellowship-in-chromatin-and-structural-biology

Best,

Nikolina


Nikolina Sekulic, PhD
Group leader, Structural Biology and Chromatin
Centre for Molecular Medicine Norway, NCMM
Gaustadalléen 21
Forskningsparken0349 OSLOOffice: +47 22840511



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[ccp4bb] PhD studentship in Structural Biology and Chromatin available at University of Oslo

2017-11-27 Thread Nikolina Sekulic
Dear all,

I have an opening for PhD student in my group and I would be grateful if
you can circulate this info between interested groups in your environment.

Thanks in advance,

Nikolina

Nikolina Sekulic, PhD
Group leader, Structural Biology and Chromatin
Norwegian Center for Molecular Medicine (NCMM)
Associate Professor, Department of Chemistry, University of Oslo
Gaustadalléen 21
Forskningsparken 0349 OSLO
Office: +47 22840511

---

PhD Research Fellowship in Structural Biology and Chromatin

A 3 year PhD fellowship is available in the Group for Chromatin and
Structural Biology.

The Group for Structural Biology and Chromatin (Sekulic Group
<http://www.med.uio.no/ncmm/english/groups/seculic-group/index.html>)
investigates chromatin biology and epigenetics with a biochemical and
structural approach. The project aims at understanding changes in chromatin
during mitosis and kinetochore formation. We use various biochemical and
biophysical approaches (X-ray crystallography, SAXS, SANS,
hydrogen-deuterium exchange ...). In addition, we collaborate with cell
biology groups to link structure with function.

Sekulic group is affiliated with both the Faculty of Medicine and the
Department of Chemistry at the Faculty of Mathematics and Natural Sciences.
The PhD student will also benefit from career development programs offered
both at UiO as well as the Nordic EMBL network of the Centre for Molecular
Medicine, Norway.

*PhD candidate*: A three-year position is available immediately. We seek
highly motivated individuals with an excellent track record and experience
in protein purification and biophysical and biochemical characterization of
proteins and protein complexes. Experience in the field of structural
biology and mass spectrometry techniques is an advantage. We offer
stimulating environment with excellent working and social benefits.

The purpose of the fellowship is research training leading to the
successful completion of a PhD degree.

The fellowship requires admission to the PhD program at the Faculty of
Mathematics and Natural Sciences. The application to the PhD program must
be submitted to the department no later than two months after taking up the
position. For more information see:

http://www.mn.uio.no/english/research/phd/

http://www.mn.uio.no/english/research/phd/application/application.html

*The ideal candidate will have:*
• A Master’s degree in biochemistry, chemistry, molecular biology or a
related area
• Hands-on experience with purification of proteins and assembly of protein
complexes
• Ability to independently perform experiments, analyze and interpret the
results
• Excellent interpersonal/communication skills
• Excellent written and oral English
• Ability to operate as a team player in a multi-disciplinary environment

*The application must include:*
• Cover Letter stating motivation and research interests
• CV
• Copies of certificates and grades with explanation of the grading system
• A complete list of scientific publications
• List of references (name, relation to candidate, e-mail and telephone
number)

Foreign applicants are advised to attach an explanation of their
University’s grading system. Please remember that all documents should be
submitted in English.

In accordance with the University of Oslo's equal opportunities policy, we
invite applications from all interested individuals regardless of gender or
ethnicity.

UiO has an agreement for all employees, aiming to secure rights to research
results a.o.  Note that no one can be appointed for more than one specified
period at the same institution.

*Salary:* The position will be placed as SKO 1017 (position code) with
salary depending on qualifications within step 50-57 (NOK 436 900 – 490
900  per year) depending on qualifications and seniority.

*Inquiries:*
About the position: Group Leader,  Nikolina Sekulic (
nikolina.seku...@biotek.uio.no).
About administrative aspects of the application: Nina Modahl (
ni...@ncmm.uio.no).


Please submit your application through the web-based recruitment
system linked to the announcement.

https://www.jobbnorge.no/en/available-jobs/job/144835/phd-research-fellowship-in-structural-biology-and-chromatin


[ccp4bb] Postdoc and PhD fellow at University of Oslo

2017-02-13 Thread Nikolina Sekulic
The Group for Structural Biology and Chromatin (*Sekulic group)* investigates
chromatin biology and epigenetics with biochemical and structural
approaches. The project aims at understanding changes in chromatin during
mitosis and kinetochore formation. We use various biochemical and
biophysical approaches (X-ray crystallography, SAXS, SANS,
hydrogen-deuterium exchange ...). In addition, we collaborate with cell
biology groups to link structure with function.

We seek highly motivated individuals with an excellent track record and
experience in protein purification and biophysical and biochemical
characterization of proteins and protein complexes. Knowledge of chromatin
biology, structural biology and mass spec techniques is an advantage. We
offer stimulating environment with excellent working and social benefits.

*PhD fellow *

A three-year program can be started ASAP. The fellowship requires admission
to the PhD program at the Faculty of Mathematics and Natural Sciences. For
more information see:

http://www.mn.uio.no/english/research/phd/

http://www.mn.uio.no/english/research/phd/application/application.html

*Postdoctoral fellow *

A three-year position is available from August 2017 but earlier starting
date can also be accommodated.


Applications for both positions will be considered only through on-line
system, so please use links below to apply.

http://uio.easycruit.com/vacancy/1789469/70932?iso=gb

http://uio.easycruit.com/vacancy/1789507/70932?iso=gb


Nikolina Sekulic, PhD
Group leader, Structural Biology and Chromatin
Norwegian Center for Molecular Medicine (NCMM)
Associate Professor, Department of Chemistry, University of Oslo
Gaustadalléen 21
Forskningsparken 0349 OSLO
Office: +47 22840511


Re: [ccp4bb] Examples of multiple ASU copies with different conformations

2014-01-28 Thread Nikolina Sekulic
Another interesting example might be a structure of Mad2, protein essential
in the process of chromosome segregation. Protein has 2 different secondary
structure topologies and both of them are part of the AU in 2V64. There are
other X-ray structures where only one of the conformations is captured in
the crystal.

Good luck,

Nikolina

Nikolina Sekulic, PhD
Research Associate
Department of Biochemistry and Biophysics
University of Pennsylvania
Stellar-Chance Laboratory 912
422 Curie Blvd, Philadelphia
cell: 312-437-9095
lab: 215-898-4476
e-mail: seku...@mail.med.upenn.edu


On Tue, Jan 28, 2014 at 8:26 AM, tamir gonen tgonen...@gmail.com wrote:

 Hi Shane,

 One example that comes to mind is aquaporin-z. Two protomers were found in
 the ASU, one contained the water channel in an open conformation while the
 other in a closed conformation. The structural differences are not large
 but the functional implication is.

 Here is the primary citation

 Architecture and selectivity in aquaporins: 2.5 a X-ray structure of
 aquaporin Z. http://www.ncbi.nlm.nih.gov/pubmed/14691544

 *Savage* DF, Egea PF, Robles-Colmenares Y, O'Connell JD 3rd, *Stroud* RM.

 PLoS Biol. *2003* Dec;1(3):E72. Epub *2003* Dec 22.


 Kind regards
 Tamir

 
 gon...@hhmi.org


 On Jan 27, 2014, at 1:08 PM, Shane Caldwell shane.caldwel...@gmail.com
 wrote:

 Hi ccp4bb,

 I'm putting together a talk for some peers that highlights strengths and
 weaknesses of structural models for the outsider. For one point, I'd like
 to find some examples of proteins that show very different conformations
 between different copies in the ASU. One example I know of is c-Abl (1OPL),
 which crystallizes with both autoinhibited and active forms in the ASU,
 with dramatically different domain organization. I'd like to find some
 additional examples - can anyone suggest some other structures that have
 multiple copies with large structural variations?

 Thanks in advance!

 Shane Caldwell
 McGill University






Re: [ccp4bb] Angle between monomer of a dimer

2012-08-23 Thread Nikolina Sekulic
Dear Appu,

I had similar issue once. You can use Coot to overlay two structures and
get the rotation matrix

a1 a2 a3
b1 b2 b3
c1 c2 c3

from here you can calculate cosine of an angle using formula

(a1+b2+c3-1)/2

Good luck,

Nikolina Sekulic, PhD
postdoctoral fellow
University of Pennsylvania

On Thu, Aug 23, 2012 at 2:30 PM, Appu kumar appu.kum...@gmail.com wrote:

 Dear all ccp4 users,
   I have solved the structure of a protein
 which is a dimer. On comparison with the other structure from PDB data
 bank, i found that structure solved by us show a tiltness in
 monomer-monomer arrangement of a dimer. May you please help me in findng
 the angle between two monomer. Do i need to calculate the centre of mass of
 the protein for calcualting the angle between them?.
 Thanks in advance please help me.
 Thank you
 Appu