User profiles for Elisar J. Barbar

Elisar Jamil Barbar

Professor & Head of Biochemistry and Biophysics Oregon State University
Verified email at oregonstate.edu
Cited by 3252

Multivalency regulates activity in an intrinsically disordered transcription factor

…, G Pearce, J Heierhorst, SL Reichow, EJ Barbar - Elife, 2018 - elifesciences.org
10.7554/eLife.36258.001 The transcription factor ASCIZ (ATMIN, ZNF822) has an unusually
high number of recognition motifs for the product of its main target gene, the hub protein …

Dimerisation of the PICTS complex via LC8/Cut-up drives co-transcriptional transposon silencing in Drosophila

…, M Munafo, V Frantzis, E Kneuss, EJ Barbar… - Elife, 2021 - elifesciences.org
In animal gonads, the PIWI-interacting RNA (piRNA) pathway guards genome integrity in
part through the co-transcriptional gene silencing of transposon insertions. In Drosophila …

Altered protein dynamics and increased aggregation of human γS-crystallin due to cataract-associated deamidations

…, KA Jara, PN Reardon, LL David, EJ Barbar… - Biochemistry, 2019 - ACS Publications
Deamidation is a major age-related modification in the human lens that is highly prevalent in
crystallins isolated from the insoluble fraction of cataractous lenses and also causes protein …

RNA structure and multiple weak interactions balance the interplay between RNA binding and phase separation of SARS-CoV-2 nucleocapsid

…, P Allen, PN Reardon, DA Hendrix, EJ Barbar - PNAS …, 2023 - academic.oup.com
The nucleocapsid (N) protein of SARS-CoV-2 binds viral RNA, condensing it inside the
virion, and phase separating with RNA to form liquid–liquid condensates. There is little …

[HTML][HTML] The dynein light chain 8 (LC8) binds predominantly “in-register” to a multivalent intrinsically disordered partner

…, DA Smith, HTM Hoang, JS Prell, EJ Barbar - Journal of Biological …, 2020 - ASBMB
Dynein light chain 8 (LC8) interacts with intrinsically disordered proteins (IDPs) and influences
a wide range of biological processes. It is becoming apparent that among the numerous …

[HTML][HTML] Quantifying cooperative multisite binding in the hub protein LC8 through Bayesian inference

AB Estelle, A George, EJ Barbar… - PLoS computational …, 2023 - journals.plos.org
Multistep protein-protein interactions underlie most biological processes, but their characterization
through methods such as isothermal titration calorimetry (ITC) is largely confined to …

[HTML][HTML] Heme catalyzes tyrosine 385 nitration and inactivation of prostaglandin H2 synthase-1 by peroxynitrite

…, M Laineé, JH Qiu, B Resnick, EJ Barbar… - Journal of lipid …, 2006 - ASBMB
The mechanism by which the inflammatory enzyme prostaglandin H 2 synthase-1 (PGHS-1)
deactivates remains undefined. This study aimed to determine the stabilizing parameters of …

[HTML][HTML] Linker Length Drives Heterogeneity of Multivalent Complexes of Hub Protein LC8 and Transcription Factor ASCIZ

…, AK Swansiger, PN Reardon, JS Prell, EJ Barbar - Biomolecules, 2023 - mdpi.com
LC8, a ubiquitous and highly conserved hub protein, binds over 100 proteins involved in
numerous cellular functions, including cell death, signaling, tumor suppression, and viral …

[PDF][PDF] The tail of Kinesin-14a in giardia is a dual regulator of motility

…, G Feng, Q Feng, ES Kwok, J Howe, EJ Barbar… - Current Biology, 2020 - cell.com
Kinesin-14s are microtubule-based motor proteins that play important roles in mitotic
spindle assembly [1]. Ncd-type kinesin-14s are a subset of kinesin-14 motors that exist as …

Multivalency, autoinhibition, and protein disorder in the regulation of interactions of dynein intermediate chain with dynactin and the nuclear distribution protein

…, Z Yu, P Woonnimani, C Brooks, CH Vesely, EJ Barbar - Elife, 2022 - elifesciences.org
As the only major retrograde transporter along microtubules, cytoplasmic dynein plays crucial
roles in the intracellular transport of organelles and other cargoes. Central to the function …