Protein
Pyrophosphate--fructose 6-phosphate 1-phosphotransferase subunit beta 2
Organism
Arabidopsis thaliana
Function
Catalytic subunit of pyrophosphate--fructose 6-phosphate 1-phosphotransferase. Catalyzes the phosphorylation of D-fructose 6-phosphate, the first committing step of glycolysis. Uses inorganic phosphate (PPi) as phosphoryl donor instead of ATP like common ATP-dependent phosphofructokinases (ATP-PFKs), which renders the reaction reversible, and can thus function both in glycolysis and gluconeogenesis.
Similarity
Belongs to the phosphofructokinase type A (PFKA) family. PPi-dependent PFK group II subfamily. Clade Long sub-subfamily.
Sequence
MASQLDLIGGDYIAGISINPPTNSRVTSVYSEVQASRIDHTLPLPSVFKTPFKIIDGPPSSSAGHPEEIEKLFPNLFGQPSALLVPNQSNEVSSDQKLKIGVVLSGGQAPGGHNVICGIFDYLQEYARGSSLFGFRGGPAGIMKGKYIELTSEFVYPYRNQGGFDMICSGRDKIETPEQFKQAEETVTKMDLDGLVVIGGDDSNTNACLLAEHFRAKNMKTLVIGCPKTIDGDLKSKEVPTSFGFDTACKIYSEMIGNVMIDARSTGKYYHFVRLMGRAASHITLECALQTHPNITIIGEEVFEKKLTLKNVTDNIVDVIYKRAENGYNYGVILVPEGLIDFIPEVQQLISELNEVLAEGNVDEEGQWKKNLKKETLEIFEFLPQTIQEQLMLERDPHGNVQVAKIETEKMLIQMVETELEKKKTEGTYEREFMGKSHFFGYEGRCGLPTNFDATYCYALGYGAGSLLQSGKTGLISSVGNLAAPVEEWTVGGTALTSLMDVERRHGKFKPVIKKAMVELEGAPFKKFASQREEWALKNRYISPGPIQFKGPGSDARNHTLMLELGAQA