Entry
Name
ABC-type methionine transporter;
methionine transporting ATPase;
methionine ABC transporter;
metNIQ (gene names)
Class
Translocases;
Catalysing the translocation of amino acids and peptides;
Linked to the hydrolysis of a nucleoside triphosphate
BRITE hierarchy
Sysname
ATP phosphohydrolase (ABC-type, methionine-importing)
Reaction(IUBMB)
(1) ATP + H2O + L-methionine-[methionine-binding protein][side 1] = ADP + phosphate + L-methionine[side 2] + [methionine-binding protein][side 1] ;
(2) ATP + H2O + D-methionine-[methionine-binding protein][side 1] = ADP + phosphate + D-methionine[side 2] + [methionine-binding protein][side 1]
Substrate
ATP [CPD:
C00002 ];
H2O [CPD:
C00001 ];
L-methionine-[methionine-binding protein][side 1];
D-methionine-[methionine-binding protein][side 1]
Product
ADP [CPD:
C00008 ];
phosphate [CPD:
C00009 ];
L-methionine[side 2];
[methionine-binding protein][side 1];
D-methionine[side 2]
Comment
ABC-type (ATP-binding cassette-type) transporter, characterized by the presence of two similar ATP-binding domains/proteins and two integral membrane domains/proteins. A bacterial enzyme that interacts with an extracytoplasmic substrate binding protein and functions to import methionine. The enzyme from Escherichia coli K-12 mediates the high affinity transport of both L- and D-methionine, as well as methionine-S-oxide and N-acetyl-DL-methionine.
History
EC 7.4.2.11 created 2019
Reference
Authors
Merlin C, Gardiner G, Durand S, Masters M.
Title
The Escherichia coli metD locus encodes an ABC transporter which includes Abc (MetN), YaeE (MetI), and YaeC (MetQ).
Journal
Sequence
Reference
Authors
Zhang Z, Feige JN, Chang AB, Anderson IJ, Brodianski VM, Vitreschak AG, Gelfand MS, Saier MH Jr
Title
A transporter of Escherichia coli specific for L- and D-methionine is the prototype for a new family within the ABC superfamily.
Journal
Sequence
Reference
Authors
Moussatova A, Kandt C, O'Mara ML, Tieleman DP
Title
ATP-binding cassette transporters in Escherichia coli.
Journal
Other DBs
ExplorEnz - The Enzyme Database: 7.4.2.11
ExPASy - ENZYME nomenclature database: 7.4.2.11
LinkDB
All DBs