PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29991557-4 2018 Based upon the observation that 1 subunit of succinyl-CoA synthetase (SCS) physically interacts with the first enzyme of heme synthesis (5-aminolevulinate synthase 2, ALAS2) in erythroid cells, it has been posited that succinyl-CoA for ALA synthesis is provided by the adenosine triphosphate-dependent reverse SCS reaction. succinyl-coenzyme A 45-57 5'-aminolevulinate synthase 2 Homo sapiens 167-172 32499479-3 2020 Here, we report the human ALAS2 crystal structure, revealing that its Ct-extension folds onto the catalytic core, sits atop the active site, and precludes binding of substrate succinyl-CoA. succinyl-coenzyme A 176-188 5'-aminolevulinate synthase 2 Homo sapiens 26-31 30737140-11 2019 Decreased ALAS2 activity results either directly from loss-of-function ALAS2 mutations as seen in X-linked sideroblastic anemia (XLSA) or from defect in the availability of one of its two mitochondrial substrates: glycine in SLC25A38 mutations and succinyl CoA in GLRX5 mutations. succinyl-coenzyme A 248-260 5'-aminolevulinate synthase 2 Homo sapiens 10-15 30678654-6 2019 RESULTS: The five ALAS2 single nucleotide variants had from 1.3- to 1.9-fold increases in succinyl-CoA Vmax and 2- to 3-fold increases in thermostability suggesting that most could be gain-of-function modifiers of porphyria instead of causes. succinyl-coenzyme A 90-102 5'-aminolevulinate synthase 2 Homo sapiens 18-23 30678654-8 2019 The five novel ALAS2 truncation mutations had increased Vmax values for both succinyl-CoA and glycine substrates (1.4 to 5.6-fold over wild-type), while the Kms for both substrates were only modestly changed. succinyl-coenzyme A 77-89 5'-aminolevulinate synthase 2 Homo sapiens 15-20 22740690-6 2012 In contrast, vitamin B6-responsive XLSA mutations p.Arg452Cys and p.Arg452His, with normal in vitro enzyme activity and stability, did not interfere with binding to SUCLA2 but instead had loss of positive cooperativity for succinyl-CoA binding, an increased K(m) for succinyl-CoA, and reduced vitamin B6 affinity. succinyl-coenzyme A 223-235 5'-aminolevulinate synthase 2 Homo sapiens 35-39 26605136-1 2015 5-Aminolevulinate synthase (ALAS) catalyzes the initial step of mammalian heme biosynthesis, the condensation between glycine and succinyl-CoA to produce CoA, CO2, and 5-aminolevulinate. succinyl-coenzyme A 130-142 5'-aminolevulinate synthase 2 Homo sapiens 28-32 26300302-8 2015 We propose that (1) the XLPP mutations destabilize the succinyl-CoA-induced hALAS2 closed conformation and thus accelerate ALA release, (2) the extended C-terminus of wild-type mammalian ALAS2 provides a regulatory role that allows for allosteric modulation of activity, thereby controlling the rate of erythroid heme biosynthesis, and (3) this control is disrupted in XLPP, resulting in porphyrin accumulation. succinyl-coenzyme A 55-67 5'-aminolevulinate synthase 2 Homo sapiens 76-82 26300302-8 2015 We propose that (1) the XLPP mutations destabilize the succinyl-CoA-induced hALAS2 closed conformation and thus accelerate ALA release, (2) the extended C-terminus of wild-type mammalian ALAS2 provides a regulatory role that allows for allosteric modulation of activity, thereby controlling the rate of erythroid heme biosynthesis, and (3) this control is disrupted in XLPP, resulting in porphyrin accumulation. succinyl-coenzyme A 55-67 5'-aminolevulinate synthase 2 Homo sapiens 77-82 25450364-3 2014 ALAS2 is a mitochondrial enzyme, which utilizes glycine and succinyl-CoA to form 5-aminolevulinic acid (ALA), a crucial precursor in heme synthesis. succinyl-coenzyme A 60-72 5'-aminolevulinate synthase 2 Homo sapiens 0-5 22740690-6 2012 In contrast, vitamin B6-responsive XLSA mutations p.Arg452Cys and p.Arg452His, with normal in vitro enzyme activity and stability, did not interfere with binding to SUCLA2 but instead had loss of positive cooperativity for succinyl-CoA binding, an increased K(m) for succinyl-CoA, and reduced vitamin B6 affinity. succinyl-coenzyme A 267-279 5'-aminolevulinate synthase 2 Homo sapiens 35-39 10727444-7 2000 Because the D190V mutant was identified in a patient with pyridoxine-refractory X-linked sideroblastic anemia, our findings suggest that appropriate association of SCS-betaA and ALAS-E promotes efficient use of succinyl CoA by ALAS-E or helps translocate ALAS-E into mitochondria. succinyl-coenzyme A 211-223 5'-aminolevulinate synthase 2 Homo sapiens 178-184 10727444-7 2000 Because the D190V mutant was identified in a patient with pyridoxine-refractory X-linked sideroblastic anemia, our findings suggest that appropriate association of SCS-betaA and ALAS-E promotes efficient use of succinyl CoA by ALAS-E or helps translocate ALAS-E into mitochondria. succinyl-coenzyme A 211-223 5'-aminolevulinate synthase 2 Homo sapiens 227-233 10727444-7 2000 Because the D190V mutant was identified in a patient with pyridoxine-refractory X-linked sideroblastic anemia, our findings suggest that appropriate association of SCS-betaA and ALAS-E promotes efficient use of succinyl CoA by ALAS-E or helps translocate ALAS-E into mitochondria. succinyl-coenzyme A 211-223 5'-aminolevulinate synthase 2 Homo sapiens 227-233 35054318-5 2022 The erythroid-specific ALAS2 catalyses the synthesis of delta-aminolevulinic acid (ALA), from the union of glycine and succinyl-coenzyme A, in the first step of the pathway in the erythron. succinyl-coenzyme A 119-138 5'-aminolevulinate synthase 2 Homo sapiens 23-28