[ccp4bb] [Off-topic] Research Coordinator position available immediately

2023-05-01 Thread PULSARSTRIAN
There is a Research coordinator position available immediately at University of Oklahoma. *Research Coordinator* *-* *Job Number:* *230192* *Organization:* Chemistry/Biochemistry *Job Location:* Oklahoma-Norman-Norman Campus *Schedule:* Full-time *Work Schedule:* 8 AM - 5 PM Monday - Friday

[ccp4bb] [Off-topic] NMR manager position available

2023-03-03 Thread PULSARSTRIAN
There is a NMR manager position available at University of Oklahoma. *NMR Manager position at University of Oklahoma * *Organization:* Chemistry/Biochemistry *Job Location:* Oklahoma-Norman-Norman Campus *Schedule:* Full-time *Work Schedule:* Monday - Friday 8-5 *Salary Range:* Target Sa

[ccp4bb] Postdoctoral Associate at the University of Oklahoma

2023-02-26 Thread PULSARSTRIAN
On behalf of Dr. John Peters, OU The Peters lab at OU is looking for a postdoctoral associate with a strong background in metalloproteins. *Desired qualifications (one or more): * 1) Experience with the expression and purification of oxygen-sensitive proteins and enzymes 2) Knowledge of crystal

[ccp4bb] Postdoctoral Associate at the University of Oklahoma

2023-02-26 Thread PULSARSTRIAN
On behalf of Dr. John Peters, OU The Peters lab at OU is looking for a postdoctoral associate with a strong background in metalloproteins. *Desired qualifications (one or more): * 1) Experience with the expression and purification of oxygen-sensitive proteins and enzymes 2) Knowledge of crystal

[ccp4bb] (off-topic) beamline for XAFS

2020-11-10 Thread PULSARSTRIAN
Dear all, Sorry for the off topic. Looking for suggestions on beamlines for XAFS on proteins with [4Fe-4S] clusters: I have two options, one at BNL and another at APS@ANL. At BNL, I think 6-BM (BMM) seems to be more for biological samples on metalloproteins on the other hand, ANL has

Re: [ccp4bb] OFF TOPIC

2018-11-13 Thread PULSARSTRIAN
Hi Anamika, As far as I understood, the biotin in the elution buffer is helping your protein to get stripped off from the Avidin column. So, maybe you dialyze your purified protein (or run FPLC) and get rid of biotin completely, before you load the protein on to strptavidin coa

Re: [ccp4bb] A question related to Fe-S proteins

2018-03-19 Thread PULSARSTRIAN
. Yet so far, I have not found any example with different oligomeric states for the *in vivo* assembled (as-purified) protein VS the *in vitro* reconstituted one. Regards, Bhanu On Mon, Mar 19, 2018 at 11:56 PM, Ethan A Merritt wrote: > On Monday, March 19, 2018 2:20:50 PM PDT PULSARSTR

Re: [ccp4bb] A question related to Fe-S proteins

2018-03-19 Thread PULSARSTRIAN
-6383 (phone) > (214) 645-6353 (fax) > > On Mar 19, 2018, at 3:07 PM, PULSARSTRIAN > wrote: > > Dear all, > > Sorry for the slightly off-topic question. > >I am working on a non-native, *de novo* [4Fe-4S] > protein, designed as a four-helix

[ccp4bb] A question related to Fe-S proteins

2018-03-19 Thread PULSARSTRIAN
Dear all, Sorry for the slightly off-topic question. I am working on a non-native, *de novo* [4Fe-4S] protein, designed as a four-helix bundle. The *in vitro* reconstituted protein assembles with [4Fe-4S] (confirmed by EPR) and exists in monomer-dimer configurat

Re: [ccp4bb] Helical bundles vs coiled coils

2018-02-22 Thread PULSARSTRIAN
Dear Dr. Anastassis, In my practical experience, (homo) oligomeric helical proteins have greater 222 nm (more negative mdeg) dips compared to 208 nm, whereas in contrast the coiled coils have greater 208 nm dips over 222, and the depth at 208 nm increases with

Re: [ccp4bb] binding protein to nickel column

2017-03-30 Thread PULSARSTRIAN
Hi Shubhangi, As Edward suggested, you can try with N-terminal His tag. For this you can either clone in N-terminal His tagged based vectors or by site directed insertion of 18 nucleotides coding for 6 His at the N-terminus region. But, before that, I suggest

Re: [ccp4bb] Lysozyme soaked with GlcNac?

2017-02-20 Thread PULSARSTRIAN
Dear Eike, You can refer to this article. The molecular basis of polysaccharide cleavage by lytic polysaccharide monooxygenases (2016 Feb) by Kristian, Glyn et al. Refer to the Supplementary Material of the paper for the information of soaking. (reference PDB id 5ACI). https:

[ccp4bb] His Purification

2012-01-18 Thread PULSARSTRIAN
Hello Every one, I am trying to purify a human protein in a bacterial expression system of around 82 kDa (with a 5 kDa His tag, so fusion protein is 87 kDa) which was cloned in pRSET-A vector. The Problem is I am not able to get rid of the infamous contamination proteins of