Two TonB-dependent outer membrane transporters involved in heme uptake in Anabaena sp. PCC 7120
Microbial CellLow availability of micronutrients such as iron has enforced the evolution of uptake systems in all kingdoms of life. In Gram-negative bacteria, outer membrane, periplasmatic and plasma membrane localized proteins facilitate the uptake of iron-loaded ...
Julia Graf +3 more
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Purification, immunological, and functional characterization of MxFIT in Malus xiaojinensis
Biologia Plantarum, 2021 MxFIT is a FER-like iron deficiency induced transcriptional factor in Malus xiaojinensis. Here, we described the heterologous expression of MxFIT in Escherichia coli BL21 (DE3) host cells. The E.
L.L. YIN +5 more
doaj +1 more source
Transferrin receptor expression and the regulation of placental iron uptake [PDF]
, 1991 Placental transferrin receptors, located at the apical side of syncytiotrophoblast, mediate placental iron uptake. Regulation of transferrin receptors on the fetal-maternal exchange area could be a major determinant in the regulation of trans-placental ...
Baert, M.R.M. (Miranda) +3 more
core +1 more source
The trypanosomal transferrin receptor of trypanosoma brucei : a review [PDF]
, 2019 Iron is an essential element for life. Its uptake and utility requires a careful balancing with its toxic capacity, with mammals evolving a safe and bio-viable means of its transport and storage. This transport and storage is also utilized as part of the
Kariuki, Christopher K. +2 more
core +2 more sources
Assessment of iron bioavailability from different bread making processes using an in vitro intestinal cell model [PDF]
, 2017 Myo-inositol hexakisphosphate (IP6), is the main iron chelator in cereals and bread. The aim of this study was to investigate the effect of three commercial baking processes (sourdough, conventional yeast and Chorleywood Bread Making Process (CBP)) on ...
A. Perfecto +40 more
core +2 more sources
Photoreductive Dissolution of Iron Oxides Trapped in Ice and Its Environmental Implications [PDF]
, 2010 The availability of iron has been thought to be a main limiting factor for the productivity of phytoplankton and related with the uptake of atmospheric CO_2 and algal blooms in fresh and sea waters. In this work, the formation of bioavailable iron (Fe(II)
Choi, Wonyong +4 more
core +1 more source
Modulation of iron responsive gene expression and enzymatic activities in response to changes of the iron nutritional status in _Cucumis sativus_ L. [PDF]
, 2010 Regulation exerted by the iron status of the plant on the iron deficiency responses was investigated in cucumber roots (_Cucumis sativus_ L.) both at the biochemical and molecular level. Absence of iron induced the expression of the CsFRO1, CsIRT1, CsHA1
Gianpiero Vigani +2 more
core +2 more sources
Scientific Reports, 2018 NaCT is a Na+-coupled transporter for citrate expressed in hepatocytes and neurons. It is the mammalian ortholog of INDY (I’m Not Dead Yet), a transporter which modifies lifespan in Drosophila.
Jiro Ogura +6 more
doaj +1 more source
Dietary factors modulate iron uptake in Caco-2 cells from an iron ingot used as a home fortificant to prevent iron deficiency [PDF]
, 2017 Iron deficiency is a major public health concern and nutritional approaches are required to reduce its prevalence. The aim of this study was to examine the iron bioavailability of a novel home fortificant, the "Lucky Iron Fish™" (LIF) (www.luckyironfish ...
Antonio Perfecto +6 more
core +1 more source
Iron Uptake Mechanisms of Pathogenic Bacteria.
Nippon Saikingaku Zasshi, 1996 鉄 (イオン) はほとんどの生物の生存と増殖に不可欠な元素である。しかし, 宿主生体における鉄は大部分が結合型やヘム鉄として存在し, 細菌が自由に利用できる遊離鉄は極めて少ない。これは有害な活性酸素の生成防止と共に細菌感染症に対する非特異的生体防御機構の一つとなっている。それ故, 宿主生体中で増殖し得る病原菌は何らかの巧妙な鉄獲得系を保持している筈である。鉄欠乏下に発現する2つの鉄獲得系が明かにされている: 1) Fe3+に高親和性の輸送キレート剤, シデロフォア (siderophore, siderochrome とも呼ばれる) を産生し, トランスフェリンやラクトフェリンに結合している鉄を奪い取り, そのコンプレックスに特異的なレセプターを介して鉄を取り込む系; 2) トランスフェリン ...
S, Yamamoto, S, Shinoda
openaire +3 more sources