Junlei Sun
Pennsylvania State University
4 Papers
Junlei Sun is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Electron transfer & Photosystem I. The author has an hindex of 4, co-authored 4 publications.
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Papers
Evidence that histidine forms a coordination bond to the A0A and A0B chlorophylls and a second H-bond to the A1A and A1B phylloquinones in M688HPsaA and M668HPsaB variants of Synechocystis sp. PCC 6803
Junlei Sun,Sijie Hao,Matthew I. Radle,Wu Xu,Ivan V. Shelaev,Victor A. Nadtochenko,Vladimir V Shuvalov,Alexey Yu. Semenov,Heather L. Gordon,Art van der Est,John H. Golbeck +10 more
TL;DR: The axial ligands of the acceptor chlorophylls in Photosystem I are the Met sulfur atoms of M688 (PsaA) and M668(PsaB), and to determine the role of the Met, His variants were generated in Synechocystis sp.
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Mutations in algal and cyanobacterial Photosystem I that independently affect the yield of initial charge separation in the two electron transfer cofactor branches.
Syed Lal Badshah,Junlei Sun,Sam Mula,Mike Gorka,Patricia L. Baker,Rajiv Luthra,Su Lin,Art van der Est,John H. Golbeck,Kevin Redding +9 more
TL;DR: The most significant finding is that the yield of electron transfer in the unaffected branch did not increase to compensate for the lower yield in the affected branch, suggesting that each branch of the reaction center appears to operate independently of the other in carrying out light-induced charge separation.
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Species-dependent alteration of electron transfer in the early stages of charge stabilization in Photosystem I.
Michael D. McConnell,Junlei Sun,Reza Siavashi,Andrew N. Webber,Kevin Redding,John H. Golbeck,Art van der Est +6 more
TL;DR: Electron transfer (ET) in Photosystem I (PS I) is bidirectional, occurring in two pseudosymmetric branches of cofactors, and the relative use of two branches in the green alga Chlamydomonas reinhardtii and the cyanobacterium Synechocystis sp.
The Presence of the IsiA-PSI Supercomplex Leads to Enhanced Photosystem I Electron Throughput in Iron-Starved Cells of Synechococcus sp. PCC 7002.
Junlei Sun,John H. Golbeck +1 more
TL;DR: Findings indicate that the transient accumulation of electrons on A1 occurs more rapidly in the IsiA/PS I supercomplex than in the PS I complex alone, which translates directly to an enhanced rate of electron transfer through PS I.