PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25615817-1 2016 X-linked protoporphyria (XLP), a rare erythropoietic porphyria, results from terminal exon gain-of-function mutations in the ALAS2 gene causing increased ALAS2 activity and markedly increased erythrocyte protoporphyrin levels. protoporphyrin IX 204-218 5'-aminolevulinate synthase 2 Homo sapiens 125-130 31076252-11 2019 The increase in ALAS2 enzyme contributes to the accumulation in PPIX in the patients. protoporphyrin IX 64-68 5'-aminolevulinate synthase 2 Homo sapiens 16-21 31395332-3 2019 Aminolevulinic acid synthase 2 (ALAS2), the rate limiting enzyme of the heme pathway in the erythron, is a therapeutic target in EPP because inhibiting enzyme function would reduce downstream production of protoporphyrin IX (PPIX), preventing accumulation of the toxic molecule and thereby ameliorating symptoms. protoporphyrin IX 206-223 5'-aminolevulinate synthase 2 Homo sapiens 0-30 31395332-3 2019 Aminolevulinic acid synthase 2 (ALAS2), the rate limiting enzyme of the heme pathway in the erythron, is a therapeutic target in EPP because inhibiting enzyme function would reduce downstream production of protoporphyrin IX (PPIX), preventing accumulation of the toxic molecule and thereby ameliorating symptoms. protoporphyrin IX 206-223 5'-aminolevulinate synthase 2 Homo sapiens 32-37 31395332-3 2019 Aminolevulinic acid synthase 2 (ALAS2), the rate limiting enzyme of the heme pathway in the erythron, is a therapeutic target in EPP because inhibiting enzyme function would reduce downstream production of protoporphyrin IX (PPIX), preventing accumulation of the toxic molecule and thereby ameliorating symptoms. protoporphyrin IX 225-229 5'-aminolevulinate synthase 2 Homo sapiens 0-30 31395332-3 2019 Aminolevulinic acid synthase 2 (ALAS2), the rate limiting enzyme of the heme pathway in the erythron, is a therapeutic target in EPP because inhibiting enzyme function would reduce downstream production of protoporphyrin IX (PPIX), preventing accumulation of the toxic molecule and thereby ameliorating symptoms. protoporphyrin IX 225-229 5'-aminolevulinate synthase 2 Homo sapiens 32-37 26300302-2 2015 Mutations in the C-terminal region of human erythroid-specific ALAS (hALAS2) are associated with X-linked protoporphyria (XLPP), a disease characterized by extreme photosensitivity, with elevated blood concentrations of free protoporphyrin IX and zinc protoporphyrin. protoporphyrin IX 225-242 5'-aminolevulinate synthase 2 Homo sapiens 69-75 25179834-10 2015 Furthermore, we hypothesize that EPP patients may benefit from a mild iron deficiency since it would limit PPIX production by restricting ALAS2 over-expression. protoporphyrin IX 107-111 5'-aminolevulinate synthase 2 Homo sapiens 138-143 23263862-1 2013 Frameshift mutations in the last coding exon of the 5-aminolevulinate synthase (ALAS) 2 gene were described to activate the enzyme causing increased levels of zinc- and metal-free protoporphyrin in patients with X-linked dominant protoporphyria (XLDPP). protoporphyrin IX 180-194 5'-aminolevulinate synthase 2 Homo sapiens 80-87 21627978-4 2011 MATERIALS AND METHODS: Four patients had a deletion in ALAS2 that causes enzyme gain-of-function, resulting in increased formation of protoporphyrin; one had a heterozygous major deletion in FECH DNA. protoporphyrin IX 134-148 5'-aminolevulinate synthase 2 Homo sapiens 55-60 24718052-4 2014 ALAS2 variants that cause high levels of PPIX accumulation provide a new means of targeted, and potentially enhanced, photosensitization. protoporphyrin IX 41-45 5'-aminolevulinate synthase 2 Homo sapiens 0-5 24718052-5 2014 In order to assess the prospective utility of ALAS2 variants in PPIX production for PDT, K562 human erythroleukemia cells and HeLa human cervical carcinoma cells were transfected with expression plasmids for ALAS2 variants with greater enzymatic activity than the wild-type enzyme. protoporphyrin IX 64-68 5'-aminolevulinate synthase 2 Homo sapiens 46-51 24718052-6 2014 The levels of accumulated PPIX in ALAS2-expressing cells were analyzed using flow cytometry with fluorescence detection. protoporphyrin IX 26-30 5'-aminolevulinate synthase 2 Homo sapiens 34-39 24718052-9 2014 Light treatments revealed that ALAS2 expression results in an increase in cell death in comparison to aminolevulinic acid (ALA) treatment producing a similar amount of PPIX. protoporphyrin IX 168-172 5'-aminolevulinate synthase 2 Homo sapiens 31-36 24509859-6 2014 IRP1 attenuates protoporphyrin biosynthesis by binding to the 5"-iron response element (IRE) of alas2 mRNA, inhibiting its translation. protoporphyrin IX 16-30 5'-aminolevulinate synthase 2 Homo sapiens 96-101 24135682-4 2013 Protoporphyrin levels in serum and feces were significantly elevated and a heterozygous frameshift mutation in the exon 11 of the ALAS2 gene: c.1706-1709del (p.Glu569GlyfsX24) was identified. protoporphyrin IX 0-14 5'-aminolevulinate synthase 2 Homo sapiens 130-135 20850938-11 2010 Finally, about 4% of unrelated EPP patients have X-linked dominant protoporphyria (XLDPP) (MIM 300752) caused by gain-of-function mutations in the ALAS2 gene leading to an increased erythroid heme biosynthesis and subsequently an accumulation of protoporphyrin without any FECH deficiency. protoporphyrin IX 246-260 5'-aminolevulinate synthase 2 Homo sapiens 147-152 10522552-7 1999 Because the 5"-untranslated region of the erythroid-specific ALA-S2 mRNA contains the iron-responsive element, a cis-acting sequence responsible for translational induction of erythroid ALA-S2 by iron, the availability of iron controls protoporphyrin IX levels in hemoglobin-synthesizing cells. protoporphyrin IX 236-253 5'-aminolevulinate synthase 2 Homo sapiens 61-67