Re: [ccp4bb] poly-dN model

2021-03-13 Thread Jinwei Zhang
Hi Reza, 

If you are looking for a molecular replacement model, we typically use 
single-stranded or double-stranded poly-uridine, which you can generate with 
Coot. 

Best,
-Jinwei

-
Jinwei Zhang
Laboratory of Molecular Biology
NIDDK, NIH
50 South Drive, Room 4503
Bethesda, MD 20892
Tel: 301-402-4703
https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html



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[ccp4bb] Postdoctoral Position at NIH — Structures, Interactions and Mechanisms of Noncoding RNAs and RNPs.

2021-03-11 Thread Jinwei Zhang
Dear Colleagues,

We are looking for a new member to join our group at the Laboratory of 
Molecular Biology at NIDDK, in NIH’s main campus in Bethesda, MD, USA. Set in 
an exciting and burgeoning field, the lab explores novel structures, mechanisms 
and interactions of large noncoding RNAs in bacterial, viral and eukaryotic 
gene regulation, stress response and antiviral immunity.

We employ multidisciplinary tools such as RNA crystallography, single-particle 
Cryo-EM, small-angle X-ray scattering, fluorescence spectroscopy, chemical 
biology, and many other biochemical and biophysical tools. If you are 
interested or know of a suitable candidate, please contact me at 
jinwei.zh...@nih.gov. Detailed ad is below

Thank you,
-Jinwei

Position Description: 

A fully funded postdoctoral position (up to 5 years) is available in the 
Structural Biology of Noncoding RNAs and Ribonucleoproteins Section, Laboratory 
of Molecular Biology (LMB), NIDDK, in NIH’s vibrant main campus in Bethesda, MD 
near Washington DC. The lab addresses a widening gap between the accelerated 
discovery and functional description of the noncoding transcriptome, and the 
lack of structural and mechanistic understanding of complex noncoding RNAs and 
RNPs. We seek a new member to join our diverse group to study gene-regulatory 
riboswitches, highly structured viral RNAs, long noncoding and circular RNAs 
and their complexes with other RNAs and immune proteins, etc. We develop and 
apply innovative technologies such as rational RNA design and engineering, RNA 
crystallography, RNA cryo-EM, XFEL, ultrafast SAXS/WAXS, single-molecule 
fluorescence, fluorescence lifetime, crosslinking-mass spec., etc. See 
https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html and recent publications 
below for details:

Bou-Nader C. et al., & Zhang, J. (2021) Structural basis for host tRNA control 
of HIV-1 Gag localization., under review.
Suddala K.C & Zhang, J. (2019) High-affinity recognition of specific tRNAs by 
an mRNA anticodon-binding groove, Nat. Struct. & Mol. Biol., 26, 1114–1122.
Li S. et al., & Zhang, J. (2019) Structural basis of amino acid surveillance by 
higher-order tRNA-mRNA interactions, Nat. Struct. & Mol. Biol., 26, 1094–1105.
Hood, I.V. et al., & Zhang, J. (2019). Crystal structure of an Adenovirus 
Virus-Associated RNA, Nat. Commun. 10:2871

The well-supported lab has dedicated access to state-of-the-art equipment in 
structural biology (Mosquito, Dragonfly, Rock Imager, Akta Pures, FSEC, etc.; 
regular synchrotron access for X-ray crystallography; Titan Krios and Glacios 
for single-particle Cryo-EM; SAXS, AFM, NMR, etc), biochemistry, biophysics 
(ITC, DSC, SPR, BLI, AUC, DLS, SEC-MALS, CD, fluorescence, thermophoresis, 
iSCAMS, etc), fermentation, advanced mass spec, genomics and sequencing, and 
proteomics core facilities with hands-on training or service by dedicated 
PhD-level staff scientists.

Incoming fellows are also encouraged to bring your own ideas that you could 
develop into research programs that you can then take to your independent PI 
positions. The NIH, NIDDK, and LMB are committed to the continued education and 
career development of trainees through numerous courses and workshops offered 
by OITE, FAES, and NIDDK.

Requirements: Interested candidates must have received (or be expecting) a 
Ph.D. or M.D. within the past five years in molecular biology, structural 
biology, biochemistry, RNA biology, or a related discipline, have excellent 
oral and written communication skills, and be strongly self-motivated to design 
and participate in innovative and rigorous research projects. Prior experiences 
in structural biology are not required, as training will be provided.

To apply: Please email a cover letter indicating preferred start date, CV, a 
brief summary of research interests, accomplishments, and career goals, and 
names and contact information for at least three references to: Dr. Jinwei 
Zhang, Email: jinwei.zh...@nih.gov. The NIH is dedicated to building a diverse 
community in its training and employment programs. DHHS/NIH is an Equal 
Opportunity Employer. 

 





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[ccp4bb] Postdoctoral Position at the NIH on Structural Biology of Noncoding RNAs and RNPs

2020-09-17 Thread Jinwei Zhang
Dear Colleagues,

I am looking for a new member to join our group at the Laboratory of Molecular 
Biology at NIDDK, in NIH’s main campus in Bethesda, MD, USA. Set in an exciting 
and burgeoning field, the lab explores novel structures, mechanisms and 
interactions of large noncoding RNAs in bacterial, viral and eukaryotic gene 
regulation, stress response and antiviral immunity.

We employ multidisciplinary tools such as X-ray crystallography, 
single-particle Cryo-EM, small-angle X-ray scattering, fluorescence 
spectroscopy, chemical biology, and many other biochemical and biophysical 
tools. If you are interested or know of a suitable candidate, please contact me 
at jinwei.zh...@nih.gov. Detailed ad is below.

Thank you,
-Jinwei

Position Description: 

A postdoctoral position is available in the Structural Biology of Noncoding 
RNAs and Ribonucleoproteins Section, Laboratory of Molecular Biology (LMB), 
NIDDK, in NIH’s vibrant main campus in Bethesda, MD near Washington DC. The lab 
addresses a widening gap between the accelerated discovery and functional 
description of the noncoding transcriptome, and the lack of structural and 
mechanistic understanding of complex noncoding RNAs and RNPs. We seek a new 
member to join our diverse group to study gene-regulatory riboswitches, highly 
structured viral RNAs, long noncoding and circular RNAs and their RNP 
complexes. See https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html for details.

The lab is part of the Earl Stadtman Investigator program for high-risk, 
high-impact research at the NIH intramural program consisting of 1100 labs. The 
lab has dedicated access to complete suites of state-of-the-art equipment in 
structural biology (Mosquito, Dragonfly, Rock Imager, Akta Pures, FSEC, etc., 
and regular synchrotron access for X-ray crystallography; Titan Krios and 
Glacios for single-particle Cryo-EM; SAXS, AFM, NMR, etc), cutting-edge 
biochemistry, biophysics (ITC, DSC, SPR, BLI, AUC, DLS, SEC-MALS, CD, 
fluorescence, thermophoresis, iSCAMS, etc), fermentation, advanced mass spec, 
genomics and sequencing, and proteomics core facilities with hands-on training 
or service by PhD-level staff scientists.

We apply innovative technologies to study RNA and RNP structure, dynamics, and 
interactions, such as rational RNA design and engineering, RNA cryo-EM, XFEL, 
ultrafast SAXS/WAXS, single-molecule fluorescence, crosslinking-mass spec., 
etc. Ongoing projects include structural and mechanistic elucidations of the 
T-box riboswitches in bacteria and Gcn2 kinase in eukaryotes in cellular stress 
responses. A second area addresses how numerous viral and host structured 
noncoding RNAs differentially manipulate immune protein activities such as PKR. 
For details refer to recent publications:

Suddala K.C & Zhang, J. (2019) High-affinity recognition of specific tRNAs by 
an mRNA anticodon-binding groove, Nat. Struct. & Mol. Biol., 26, 1114–1122.

Li S. et al., & Zhang, J. (2019) Structural basis of amino acid surveillance by 
higher-order tRNA-mRNA interactions, Nat. Struct. & Mol. Biol., 26, 1094–1105.

Hood, I.V. et al., & Zhang, J. (2019). Crystal structure of an Adenovirus 
Virus-Associated RNA, Nat. Commun. 10:2871

Incoming fellows are also encouraged to bring your own ideas that you could 
develop into research programs that you can then take to your independent PI 
positions. The NIH, NIDDK, and LMB are committed to the continued education and 
career development of trainees through numerous courses and workshops offered 
by OITE, FAES, and NIDDK.

Requirements: Interested candidates must have received (or be expecting) a 
Ph.D. or M.D. within the past five years in molecular biology, structural 
biology, biochemistry, cell biology, or a related discipline, have excellent 
oral and written communication skills, and be strongly self-motivated to 
participate in and design innovative and rigorous research projects. Prior 
experiences in structural biology are not required.

To apply: Please email a cover letter indicating preferred start date, CV, a 
brief summary of research interests, accomplishments, and career goals, and 
names and contact information for at least three references to: Dr. Jinwei 
Zhang, Email: jinwei.zh...@nih.gov. The NIH is dedicated to building a diverse 
community in its training and employment programs. DHHS/NIH is an Equal 
Opportunity Employer.




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[ccp4bb] Noncoding RNA Structural Biology trainee position at NIH

2017-06-22 Thread Jinwei Zhang
A postdoctoral or technician position is immediately available in the 
Structural Biology of Noncoding RNAs and Ribonucleoproteins Section, Laboratory 
of Molecular Biology (LMB), NIDDK, in NIH’s vibrant main campus in Bethesda, MD 
near Washington DC. The lab addresses a widening gap between the accelerated 
discovery and functional description of the noncoding transcriptome, and a 
paucity of 3D structures and mechanistic understanding of complex noncoding 
RNAs. We seek a new member to join our diverse group to study gene-regulatory 
riboswitches, highly structured viral RNAs, circular and other structured long 
noncoding RNAs, and their protein complexes. See 
https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html

The lab is part of the Earl Stadtman Investigator program for high-risk, 
high-impact research at the NIH intramural program consisting of 1100 labs. The 
well-supported lab has dedicated access to complete suites of state-of-the-art 
equipment in structural biology (Mosquito, Dragonfly, Rock Imager, Akta Pures, 
FSEC, etc. for X-ray crystallography; new Titan Krios for single-particle 
Cryo-EM; SAXS, AFM, etc), efficient biochemistry, biophysics (ITC, DSC, SPR, 
BLI, AUC, DLS, SEC-MALS, CD, fluorescence, thermophoresis, etc), fermentation, 
genomics, and proteomics core facilities with hands-on training or service by 
PhD-level staff scientists. The NIH, NIDDK, and LMB are committed to the 
continued education and career development of trainees through numerous courses 
and workshops offered by OITE and FAES. 

We apply innovative technologies to study RNA and RNP structure/function, 
including RNA cryo-EM, time-resolved XFEL, picosecond SAXS/WAXS, etc. Ongoing 
research include structural and mechanistic elucidations of how the T-box 
riboswitches (in bacteria) and Gcn2 kinase (in eukaryotes) recognize the 
structure and aminoacylation state of tRNA, and couple this readout of nutrient 
availability with initiating cellular starvation response. A second project 
addresses how viral and cellular RNA structures differentially manipulate 
immune response protein activities such as dsRNA-binding PKR. We are 
delineating the structural hallmarks of self vs. non-self RNA, which are 
deterministic for activation or suppression of immune protein activity. The lab 
also works closely with the Center for HIV RNA Studies (CRNA) as a core lab. 
https://sites.google.com/a/umich.edu/the-center-for-hiv-rna-studies/faculty-cores.
 Incoming fellows are also encouraged to bring your own ideas that you could 
develop into research programs that you can take to your independent positions. 

Requirements: Postdoctoral candidates must have received (or be expecting) a 
Ph.D. or M.D. within the past five years in molecular or structural biology, 
biochemistry, or biophysics, and be strongly self-motivated to lead innovative 
and rigorous research projects. Technician or Postbac candidates should have a 
BS or MS degree in similar disciplines and extensive laboratory experiences. 
Strong background in protein expression and purification, enzyme kinetics, RNA, 
or structural biology is desirable. 

To apply: Please email a preferred start date, CV, a brief summary of research 
interests, accomplishments, and career goals, and names and contact information 
for at least three references to: Dr. Jinwei Zhang, Email: 
jinwei.zh...@nih.gov. The NIH is dedicated to building a diverse community and 
DHHS/NIH is an Equal Opportunity Employer.


[ccp4bb] Postdoctoral Position Available to Study Structure and Mechanisms of Gene-regulatory Noncoding RNAs and Highly Structured Viral RNAs

2017-03-07 Thread Jinwei Zhang
A fully funded postdoctoral position (up to 5 years) is available in the 
Structural Biology of Noncoding RNAs and Ribonucleoproteins Section, Laboratory 
of Molecular Biology (LMB), NIDDK, in NIH’s vibrant main campus in Bethesda, MD 
near Washington DC. The lab addresses a widening gap between the accelerated 
discovery and functional description of the noncoding transcriptome, and a 
paucity of 3D structures and mechanistic understanding of complex noncoding 
RNAs. We seek a new member to join our diverse group to deepen current work on 
gene-regulatory riboswitches, highly structured viral RNAs, circular and other 
structured long noncoding RNAs. 
https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html


Current manuscripts and recent publications:
1. Li et al., & Zhang (2017) Structural basis of amino acid sensing on the tRNA 
by a T-box riboswitch. In preparation.

2. Bahmanjah et al., & Zhang (2017) Structural basis of functional repurposing 
of an aminoacyl-tRNA synthetase in stress response. In preparation.

3. Hood et al., & Zhang (2017) Structural mimicry of codon-anticodon 
interactions by a viral noncoding RNA. In preparation.

4. Zhang & Ferré-D'Amaré (2014) Dramatic improvement of crystals of large RNA 
by cation replacement and dehydration. Structure 22, 1363-1371.

5. Zhang & Ferré-D'Amaré (2014) Direct evaluation of tRNA aminoacylation status 
by the T-box riboswitch using tRNA-mRNA stacking and steric readout. Molecular 
Cell 55, 148-155.

6. Zhang & Ferré-D'Amaré (2013) Co-crystal structure of a T-box riboswitch stem 
I domain in complex with its cognate tRNA. Nature 500, 363-7.


The lab is part of the Earl Stadtman Investigator program for high-risk, 
high-impact research at the NIH intramural program consisting of 1100 labs. The 
well-supported lab has dedicated access to state-of-the-art equipment in 
structural biology (Mosquito, Dragonfly, Rock Imager, Akta Pures, FSEC, for 
X-ray crystallography; new Titan Krios for single-particle Cryo-EM; SAXS, AFM, 
etc), efficient biochemistry, biophysics (ITC, DSC, SPR, BLI, AUC, DLS, 
SEC-MALS, CD, fluorescence, thermophoresis, etc), fermentation, genomics, and 
proteomics core facilities with hands-on training or service by PhD-level staff 
scientists. The NIH, NIDDK, and LMB are committed to the continued education 
and career development of trainees through numerous courses and workshops 
offered by NIH OITE and FAES. 

Requirements: Interested candidates must have received (or be expecting) a 
Ph.D. or M.D. within the past five years in molecular or structural biology, 
biochemistry, or biophysics, and be strongly self-motivated to lead innovative 
and rigorous research projects. Strong background in protein expression and 
purification, enzyme kinetics, and structural biology is desirable. 

To apply: Please email a preferred start date, CV, a brief summary of research 
interests, accomplishments, and career goals, and names and contact information 
for at least three references to: Dr. Jinwei Zhang, Email: 
jinwei.zh...@nih.gov. The NIH is dedicated to building a diverse community and 
DHHS/NIH is an Equal Opportunity Employer.


[ccp4bb] Postdoctoral fellowship to study structure and mechanism of noncoding RNAs and ribonucleoproteins at the Laboratory of Molecular Biology, NIDDK, NIH

2015-06-02 Thread Jinwei Zhang
Dear Colleagues,

I am looking for a talented young scientist to join my new group at the 
Laboratory of Molecular Biology at NIDDK, in NIH’s main campus in Bethesda, MD, 
USA. Set in an exciting and burgeoning field, the lab will explore the emerging 
roles of large noncoding RNAs (lncRNAs, HIV​ and other viral RNAs, tRNAs, etc) 
in bacterial and eukaryotic gene regulation, stress response, and signal 
transduction, using multidisciplinary tools such as X-ray crystallography, 
high-resolution Cryo-EM, small-angle X-ray scattering, fluorescence 
spectroscopy, chemical biology, and other biochemical and biophysical tools. If 
you are interested or know of a suitable candidate, please contact me at 
jinwei.zh...@nih.gov.

 

Thank you,

-Jinwei

 

 

Postdoctoral Position Available to Study Structure and Mechanisms of 
Gene-regulatory Noncoding RNAs and Ribonucleoprotein Complexes.

 

A postdoctoral position is available starting in the Fall of 2015 in Dr. Jinwei 
Zhang’s group as part of the Laboratory of Molecular Biology (LMB) at the 
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), in 
the National Institutes of Health’s vibrant main campus in Bethesda, MD just 
outside of Washington DC. More details will become available at 
http://www-mslmb.niddk.nih.gov/ and 
http://www.niddk.nih.gov/research-funding/at-niddk/labs-branches/LMB/joining-soon/Pages/dr-jinwei-zhang-phd.aspx

 

The laboratory aims to address a widening gap between the exponential growth of 
genome-wide discovery and functional description of the noncoding 
transcriptome, and a significant lack of three-dimensional structural 
information and mechanistic understanding of such complex noncoding RNAs. 
Initial projects include gene-regulatory riboswitches, stress-sensing Gcn2 
kinase system, HIV and other viral RNA and RNPs.

 

The laboratory is established under the Earl Stadtman Investigator program, 
designed to facilitate high-risk, high-impact research 
(http://irp.nih.gov/careers/trans-nih-scientific-recruitments/stadtman-tenure-track-investigators).
 The research of the group is supported by the collaborative and 
interdisciplinary NIH intramural program consisting of more than 1100 labs and 
state-of-the-art equipment in structural biology (X-ray crystallography, 
Cryo-EM, SAXS, etc), biochemistry and biophysics core facilities with hands-on 
training provided by PhD-level support staff, genomics (RNA-seq), proteomics, 
and bioinformatics cores, flow cytometry and microscopy, etc. The NIH, NIDDK, 
and LMB are committed to the continued education and career development of 
trainees in many aspects such as numerous courses and workshops offered by NIH 
Office of Intramural Training  Education (OITE) and Foundation for Advanced 
Education in the Sciences (FAES), as well as intramural career transition 
funding (K grants) opportunities.

 

Requirements: Interested candidates must have received (or be expecting) a 
Ph.D. or M.D. within the past five years in molecular biology, structural 
biology, biochemistry, cell biology, or a related discipline and be strongly 
self-motivated to participate in and design innovative and rigorous research 
programs.

 

To apply: Please email a cover letter indicating preferred start date, CV, a 
brief summary of research interests, accomplishments, and career goals, and 
names and contact information for at least three references to: Dr. Jinwei 
Zhang, Email: jinwei.zh...@nih.gov. The NIH is dedicated to building a diverse 
community in its training and employment programs. DHHS/NIH is an Equal 
Opportunity Employer.