D-Maltose (ECMDB00163) (M2MDB000065)

General function:

Involved in transferase activity, transferring phosphorus-containing groups

Specific function:

General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. Enzyme I transfers the phosphoryl group from phosphoenolpyruvate (PEP) to the phosphoryl carrier protein (HPr)

Gene Name:

ptsI

Uniprot ID:

P08839

Molecular weight:

63561

Reactions

General function:

Involved in 4-alpha-glucanotransferase activity

Specific function:

Transfers a segment of a (1->4)-alpha-D-glucan to a new position in an acceptor, which may be glucose or a (1->4)-alpha-D-glucan

Gene Name:

malQ

Uniprot ID:

P15977

Molecular weight:

78503

Reactions

General function:

Involved in protein-N(PI)-phosphohistidine-sugar phosphotransferase activity

Specific function:

MalX encodes a phosphotransferase system enzyme II that can recognize glucose and maltose as substrates even though these sugars may not represent the natural substrates of the system

Gene Name:

malX

Uniprot ID:

P19642

Molecular weight:

56627

Reactions

General function:

Involved in catalytic activity

Specific function:

May play a role in regulating the intracellular level of maltotriose. Cleaves glucose from the reducing end of maltotriose and longer maltodextrins with a chain length of up to 7 glucose units

Gene Name:

malZ

Uniprot ID:

P21517

Molecular weight:

69172

Reactions

General function:

Involved in catalytic activity

Specific function:

Exhibits hydrolysis activity against alpha-glucosyl fluoride, although natural substrates, such as alpha-glucobioses are scarcely hydrolyzed

Gene Name:

yihQ

Uniprot ID:

P32138

Molecular weight:

77274

Reactions

General function:

Involved in nucleotide binding

Specific function:

Part of the ABC transporter complex MalEFGK involved in maltose/maltodextrin import. Responsible for energy coupling to the transport system

Gene Name:

malK

Uniprot ID:

P68187

Molecular weight:

40990

Reactions

General function:

Involved in sugar:hydrogen symporter activity

Specific function:

The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in glucose transport

Gene Name:

crr

Uniprot ID:

P69783

Molecular weight:

18251

Reactions

General function:

Involved in transferase activity

Specific function:

Acetylates maltose and other sugars

Gene Name:

maa

Uniprot ID:

P77791

Molecular weight:

20096

Reactions

General function:

Involved in transporter activity

Specific function:

Part of the binding-protein-dependent transport system for maltose; probably responsible for the translocation of the substrate across the membrane

Gene Name:

malF

Uniprot ID:

P02916

Molecular weight:

57013

General function:

Involved in transporter activity

Specific function:

Part of the binding-protein-dependent transport system for maltose; probably responsible for the translocation of the substrate across the membrane

Gene Name:

malG

Uniprot ID:

P68183

Molecular weight:

32225

General function:

Involved in maltose transmembrane transporter activity

Specific function:

Involved in the high-affinity maltose membrane transport system malEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides

Gene Name:

malE

Uniprot ID:

P0AEX9

Molecular weight:

43387

General function:

Involved in sugar:hydrogen symporter activity

Specific function:

General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the permease (enzymes II/III)

Gene Name:

ptsH

Uniprot ID:

P0AA04

Molecular weight:

9119

Reactions