Results 101 to 110 of about 5,252 (212)

Superior Induction of Apoptosis by Blue Light Compared to Red Light Photodynamic Therapy in Cutaneous Squamous Cell Carcinoma Keratinocytes

open access: yesJournal of Biophotonics, Volume 19, Issue 5, May 2026.
This study demonstrates that 5‐ALA BL PDT induces greater levels of apoptosis in SCC cells in a wavelength‐, 5‐ALA dose‐, and temperature‐dependent manner, compared to 5‐ALA RL PDT, with higher concentrations of ALA and elevated temperatures stimulating the greatest apoptotic activity.
Julia Stolyar   +5 more
wiley   +1 more source

Cell modeling of heme deficiency using ferrochelatase mutations

open access: yes, 2014
Provided herein, is a means for development of ferrochelatase variants with improved tolerance towards N-methyl protoporphyrin. Also disclosed are cell assay systems utilizing the variants, as the variants would confer resistance to N-methyl ...
Ferreira, Gloria C., Shi, Zhen
core  

The coding sequence of the bovine ferrochelatase gene

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1995
The amino acid code and surrounding regions in the bovine ferrochelatase gene were amplified by a combination of reverse transcriptase PCR and vectorette PCR and sequenced. The bovine code was 86% homologous to the human ferrochelatase code but was altered at a position corresponding to the presumed human initiator codon.
Shibuya, Hisashi   +4 more
openaire   +2 more sources

Modulation of inhibition of ferrochelatase by N-methyl protoporphyrin

open access: yes, 2013
Provided herein, is a means for development of ferrochelatase variants with improved tolerance towards N-methyl protoporphyrin. Also disclosed are cell assay systems utilizing the variants, as the variants would confer resistance to N-methyl ...
Ferreira, Gloria C., Shi, Zhen
core  

Bacterial Porphyrin Extraction and Quantification by LC/MS/MS Analysis

open access: yesBio-Protocol, 2015
Heme is an iron-containing porphyrin which acts as a prosthetic group in several enzymes involved in disparate functions, such as respiration and H2O2-scavenging.
Stefano Mancini, James Imlay
doaj   +1 more source

Regulation of ferrochelatase

open access: yes, 1977
Regulatory factors affecting ferrochelatase activity were studied and an attempt was made to determine the role of ferrochelatase in the regulation of heme biosynthesis.
Simpson, Denyse Marie
core   +1 more source

Yeast Frataxin Solution Structure, Iron Binding, and Ferrochelatase Interaction†,‡

open access: yes, 2016
The mitochondrial protein frataxin is essential for cellular regulation of iron homeostasis. Although the exact function of frataxin is not yet clear, recent reports indicate the protein binds iron and can act as a mitochondrial iron chaperone to ...
Yan Zhang (8098)   +6 more
core   +1 more source

Purification and characterisation of a water-soluble ferrochelatase from Bacillus subtilis

open access: yes, 1994
Bacillus subtilis ferrochelatase is encoded by the hemH gene of the hemEHY gene cluster and catalyses the incorporation of Fe2+ into protoporphyrin IX. B. subtilis ferrochelatase produced in Escherichia coli was purified.
Hederstedt, Lars   +4 more
core   +1 more source

Erythropoietic protoporphyria in the house mouse. A recessive inherited ferrochelatase deficiency with anemia, photosensitivity, and liver disease.

open access: yes, 1991
International audienceA viable autosomal recessive mutation (named fch, or ferrochelatase deficiency) causing jaundice and anemia in mice arose in a mutagenesis experiment using ethylnitrosourea.
Rouyer-Fessard, P   +20 more
core   +1 more source

Factors influencing the stability of heme and ferrochelatase: role of oxygen

open access: yes, 1991
Ferrochelatase (EC 4.99.1.1) catalyzed heme synthesis is best accomplished in an anaerobic environment. Factors responsible for this phenomenon are not fully understood.
Punekar, N. S., Gokhale, R. S.
core   +1 more source

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