9HJC | pdb_00009hjc

Cryo-EM structure of thiamine-bound human TPK1


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF04265Thiamin pyrophosphokinase, vitamin B1 binding domain (TPK_B1_binding)Thiamin pyrophosphokinase, vitamin B1 binding domainFamily of thiamin pyrophosphokinase (EC:2.7.6.2). Thiamin pyrophosphokinase (TPK) catalyses the transfer of a pyrophosphate group from ATP to vitamin B1 (thiamin) to form the coenzyme thiamin pyrophosphate (TPP). Thus, TPK is important for the format ...Family of thiamin pyrophosphokinase (EC:2.7.6.2). Thiamin pyrophosphokinase (TPK) catalyses the transfer of a pyrophosphate group from ATP to vitamin B1 (thiamin) to form the coenzyme thiamin pyrophosphate (TPP). Thus, TPK is important for the formation of a coenzyme required for central metabolic functions. The structure of thiamin pyrophosphokinase suggest that the enzyme may operate by a mechanism of pyrophosphoryl transfer similar to those described for pyrophosphokinases functioning in nucleotide biosynthesis [1].
Domain
A, B
PF04263Thiamin pyrophosphokinase, catalytic domain (TPK_catalytic)Thiamin pyrophosphokinase, catalytic domainFamily of thiamin pyrophosphokinase (EC:2.7.6.2). Thiamin pyrophosphokinase (TPK) catalyses the transfer of a pyrophosphate group from ATP to vitamin B1 (thiamin) to form the coenzyme thiamin pyrophosphate (TPP). Thus, TPK is important for the format ...Family of thiamin pyrophosphokinase (EC:2.7.6.2). Thiamin pyrophosphokinase (TPK) catalyses the transfer of a pyrophosphate group from ATP to vitamin B1 (thiamin) to form the coenzyme thiamin pyrophosphate (TPP). Thus, TPK is important for the formation of a coenzyme required for central metabolic functions. The structure of thiamin pyrophosphokinase suggest that the enzyme may operate by a mechanism of pyrophosphoryl transfer similar to those described for pyrophosphokinases functioning in nucleotide biosynthesis [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Thiamine pyrophosphokinase 1