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Some defects in aldolase B cause hereditary fructose intolerance. The metabolism of free fructose in liver exploits the ability of aldolase B to use fructose 1-phosphate as a substrate. [6] Archaeal fructose-bisphosphate aldolase/phosphatase is presumably involved in gluconeogenesis because its product is fructose 6-phosphate. [7]
Aldolase B is a homotetrameric enzyme, composed of four subunits with molecular weights of 36 kDa with local 222 symmetry. Each subunit has a molecular weight of 36 kDa and contains an eight-stranded α/β barrel, which encloses lysine 229 (the Schiff-base forming amino acid that is key for catalysis).
Aldolase A (ALDOA, or ALDA), also known as fructose-bisphosphate aldolase, is an enzyme that in humans is encoded by the ALDOA gene on chromosome 16.. The protein encoded by this gene is a glycolytic enzyme that catalyzes the reversible conversion of fructose-1,6-bisphosphate to glyceraldehyde 3-phosphate (G3P) and dihydroxyacetone phosphate (DHAP).
This enzyme is missing in most other Bacteria and in Eukaryota, and is heat-stabile even in mesophilic marine Crenarchaeota". It is proposed that fructose 1,6-bisphosphate aldolase/phosphatase was an ancestral gluconeogenic enzyme and had preceded glycolysis. [37]
11676 Ensembl ENSG00000109107 ENSMUSG00000017390 UniProt P09972 P05063 RefSeq (mRNA) NM_005165 NM_009657 NM_001303423 RefSeq (protein) NP_005156 NP_001290352 NP_033787 Location (UCSC) Chr 17: 28.57 – 28.58 Mb Chr 11: 78.21 – 78.22 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Aldolase C, fructose-bisphosphate (ALDOC, or ALDC), is an enzyme that, in humans, is encoded by the ...
Function: Sucrase is a stomachs related protein that mobilizes hydrolysis to convert sucrose into glucose and fructose. Clinical Significance: Low amounts of Sucrose also known as Sucrose intolerance happens when sucrose isn't being discharged in the small digestive tract. A result of this is extra gas.
Unqualified, aldolase usually refers to the enzyme fructose-bisphosphate aldolase. Aldolase may also refer to: Proteins serving as fructose-bisphosphate aldolase
Because fructokinase has a high Vmax fructose entering cells is quickly phosphorylated to fructose 1-phosphate. [1] In this form it is usually accumulated in the liver until it undergoes further conversion by aldolase B (the rate limiting enzyme of fructose metabolism). Aldolase B converts it into glyceraldehyde and dihydroxyacetone phosphate ...