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F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
D-xylulose 5-phosphate + phosphate
⇌
{\displaystyle \rightleftharpoons }
acetyl phosphate + D-glyceraldehyde 3-phosphate + H2 O (EC 4.1.2.9 ) [1]
D-fructose 6-phosphate + phosphate
⇌
{\displaystyle \rightleftharpoons }
acetyl phosphate + D-erythrose 4-phosphate + H2 O (EC 4.1.2.22 )[2]
D-sedoheptulose 7-phosphate + phosphate
⇌
{\displaystyle \rightleftharpoons }
acetyl phosphate + D-ribose 5-phosphate + H2 O [3]
Phosphoketolase is considered a promiscuous enzyme because it was demonstrated to use 3 different sugar phosphates as substrates. In a recent genetic study, more than 150 putative phosphoketolase genes exhibiting varying catalytic properties were found in 650 analyzed bacterial genomes.[4]
This enzyme belongs to the family of lyases , specifically the aldehyde-lyases, which cleave carbon-carbon bonds. It participates in 3 metabolic pathways : pentose phosphate pathway , methane metabolism , and carbon fixation . It employs one cofactor , thiamin diphosphate . Phosphoketolase was previously used for biotechnological purposes[5] [6] [7] as it enables the construction of synthetic pathways that allow complete carbon conservation without the generation of reducing power .[8]
References [ edit ]
^ Racker, E. (1962), [29d] Fructose-6-phosphate phosphoketolase from Acetobacter xylinum , Methods in Enzymology, vol. 5, Elsevier, pp. 276–280, doi :10.1016/s0076-6879(62 )05219-2 , ISBN 9780121818050
^ Krüsemann, Jan L.; Lindner, Steffen N.; Dempfle, Marian; Widmer, Julian; Arrivault, Stephanie; Debacker, Marine; He, Hai; Kubis, Armin; Chayot, Romain (2018). "Artificial pathway emergence in central metabolism from three recursive phosphoketolase reactions" . The FEBS Journal . 285 (23 ): 4367–4377. doi :10.1111/febs.14682 . ISSN 1742-4658 . PMID 30347514 .
^ Sánchez, Borja; Zúñiga, Manuel; González-Candelas, Fernando; de los Reyes-Gavilán, Clara G.; Margolles, Abelardo (2010). "Bacterial and Eukaryotic Phosphoketolases: Phylogeny, Distribution and Evolution". Journal of Molecular Microbiology and Biotechnology . 18 (1 ): 37–51. doi :10.1159/000274310 . ISSN 1464-1801 . PMID 20068356 .
^ Sonderegger, M.; Schumperli, M.; Sauer, U. (2004-05-01). "Metabolic Engineering of a Phosphoketolase Pathway for Pentose Catabolism in Saccharomyces cerevisiae" . Applied and Environmental Microbiology . 70 (5 ): 2892–2897. Bibcode :2004ApEnM..70.2892S . doi :10.1128/aem.70.5.2892-2897.2004 . ISSN 0099-2240 . PMC 404438 . PMID 15128548 .
^ Anfelt, Josefine; Kaczmarzyk, Danuta; Shabestary, Kiyan; Renberg, Björn; Rockberg, Johan; Nielsen, Jens; Uhlén, Mathias; Hudson, Elton P. (2015-10-16). "Genetic and nutrient modulation of acetyl-CoA levels in Synechocystis for n-butanol production" . Microbial Cell Factories . 14 (1 ): 167. doi :10.1186/s12934-015-0355-9 . ISSN 1475-2859 . PMC 4609045 . PMID 26474754 .
^ Meadows, Adam L.; Hawkins, Kristy M.; Tsegaye, Yoseph; Antipov, Eugene; Kim, Youngnyun; Raetz, Lauren; Dahl, Robert H.; Tai, Anna; Mahatdejkul-Meadows, Tina (September 2016). "Rewriting yeast central carbon metabolism for industrial isoprenoid production". Nature . 537 (7622): 694–697. Bibcode :2016Natur.537..694M . doi :10.1038/nature19769 . ISSN 0028-0836 . PMID 27654918 .
^ Bogorad, Igor W.; Lin, Tzu-Shyang; Liao, James C. (2013-09-29). "Synthetic non-oxidative glycolysis enables complete carbon conservation". Nature . 502 (7473): 693–697. Bibcode :2013Natur.502..693B . doi :10.1038/nature12575 . ISSN 0028-0836 . PMID 24077099 .
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R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Phosphoketolase&oldid=1230330236 "
C a t e g o r i e s :
● E C 4 . 1 . 2
● T h i a m i n e e n z y m e s
● E n z y m e s o f u n k n o w n s t r u c t u r e
● E C 4 . 1 s t u b s
H i d d e n c a t e g o r y :
● A l l s t u b a r t i c l e s
● T h i s p a g e w a s l a s t e d i t e d o n 2 2 J u n e 2 0 2 4 , a t 0 3 : 1 4 ( U T C ) .
● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n .
● P r i v a c y p o l i c y
● A b o u t W i k i p e d i a
● D i s c l a i m e r s
● C o n t a c t W i k i p e d i a
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