Maltose O-acetyltransferase - Escherichia coli (strain K12)

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Reviewed, UniProtKB/Swiss-Prot P77791 (MAA_ECOLI)

Last modified June 16, 2009. Version 74. History...

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Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

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Names and origin

Protein names

Recommended name:
    Maltose O-acetyltransferase
    EC=2.3.1.79
Alternative name(s):
    Maltose transacetylase

Gene names

Name:	maa
Synonyms:	ylaD
Ordered Locus Names:	b0459, JW0448

Organism

Escherichia coli (strain K12) [Complete proteome] [HAMAP]

Taxonomic identifier

83333 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia

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Protein attributes

Sequence length	183 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at protein level.

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General annotation (Comments)

Function	Acetylates maltose and other sugars.
Catalytic activity	Acetyl-CoA + maltose = CoA + acetyl-maltose.
Subunit structure	Homodimer.
Sequence similarities	Belongs to the transferase hexapeptide repeat family.
biophysicochemical properties	Kinetic parameters: Acetylates glucose, maltose, mannose, galactose, and fructose with a decreasing relative rate of 1, 0.55, 0.20, 0.07, 0.04. K_M=62 mM for glucose K_M=90 mM for maltose V_max=0.20 mmol/min/mg enzyme with glucose as substrate V_max=0.11 mmol/min/mg enzyme with maltose as substrate

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Ontologies

Keywords
Domain	Repeat
Molecular function	Transferase
Technical term	3D-structure Complete proteome Direct protein sequencing
Gene Ontology (GO)
Molecular function	maltose O-acetyltransferase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

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Sequence annotation (Features)

Feature key

Position(s)

Length

Description

Graphical view

Feature identifier

Molecule processing

Initiator methionine

Removed Ref.5

Chain

2 – 183

182

Maltose O-acetyltransferase

PRO_0000068729

Secondary structure

183

Helix Strand Turn

Details...

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Sequences

Sequence

Length

Mass (Da)

Tools

P77791-1 [UniParc].

Last modified January 23, 2007. Version 3.
Checksum: 3E4C7A4D68AA49C4
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FASTA

183

20,096

        10         20         30         40         50         60 
MSTEKEKMIA GELYRSADET LSRDRLRARQ LIHRYNHSLA EEHTLRQQIL ADLFGQVTEA 

        70         80         90        100        110        120 
YIEPTFRCDY GYNIFLGNNF FANFDCVMLD VCPIRIGDNC MLAPGVHIYT ATHPIDPVAR 

       130        140        150        160        170        180 
NSGAELGKPV TIGNNVWIGG RAVINPGVTI GDNVVVASGA VVTKDVPDNV VVGGNPARII 


KKL

« Hide

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References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	Boehm A.S. Submitted (JAN-1998) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: K12 / MC4100 / ATCC 35695 / DSM 6574.
[2]	"Sequence of minutes 4-25 of Escherichia coli." Chung E., Allen E., Araujo R., Aparicio A.M., Davis K., Duncan M., Federspiel N., Hyman R., Kalman S., Komp C., Kurdi O., Lew H., Lin D., Namath A., Oefner P., Roberts D., Schramm S., Davis R.W. Submitted (JAN-1997) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / MG1655 / ATCC 47076.
[3]	"The complete genome sequence of Escherichia coli K-12." Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V., Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F., Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B., Shao Y. Science 277:1453-1474(1997) [PubMed: 9278503] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / MG1655 / ATCC 47076.
[4]	"Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110." Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S., Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T. Mol. Syst. Biol. 2:E1-E5(2006) [PubMed: 16738553] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / W3110 / ATCC 27325 / DSM 5911.
[5]	"Protein identification with N and C-terminal sequence tags in proteome projects." Wilkins M.R., Gasteiger E., Tonella L., Ou K., Tyler M., Sanchez J.-C., Gooley A.A., Walsh B.J., Bairoch A., Appel R.D., Williams K.L., Hochstrasser D.F. J. Mol. Biol. 278:599-608(1998) [PubMed: 9600841] [Abstract] Cited for: PROTEIN SEQUENCE OF 2-5. Strain: K12 / W3110 / ATCC 27325 / DSM 5911.
[6]	"Maltose transacetylase of Escherichia coli. Mapping and cloning of its structural, gene, mac, and characterization of the enzyme as a dimer of identical polypeptides with a molecular weight of 20,000." Brand B., Boos W. J. Biol. Chem. 266:14113-14118(1991) [PubMed: 1856235] [Abstract] Cited for: CHARACTERIZATION.
+	Additional computationally mapped references.

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Cross-references

Sequence databases

AJ223173 Genomic DNA. Translation: CAA11147.1.
U82664 Genomic DNA. Translation: AAB40214.1.
U00096 Genomic DNA. Translation: AAC73561.1.
AP009048 Genomic DNA. Translation: BAE76238.1.

PIR

B64776.

RefSeq

AP_001108.1.
NP_414992.1.

3D structure databases

Entry	Method	Resolution (Å)	Chain	Positions	PDBsum
1OCX	X-ray	2.15	A/B/C	2-182	[»]

ModBase

Search...

Protein-protein interaction databases

DIP

DIP:10140N.

2-D gel databases

SWISS-2DPAGE

P77791.

Genome annotation databases

GeneID

945096.

GenomeReviews

Gene locus JW0448 in contig AP009048_GR.
Gene locus b0459 in contig U00096_GR.

KEGG

ecj:JW0448.
eco:b0459.

Organism-specific databases

EchoBASE

EB3990.

EcoGene

EG14239. maa.

CMR

Search...

Phylogenomic databases

HOGENOM

P77791.

OMA

P77791. AVIRPPF.

Enzyme and pathway databases

BioCyc

EcoCyc:MALTACETYLTRAN-MON.
MetaCyc:MALTACETYLTRAN-MON.

Family and domain databases

InterPro

IPR001451. Hexapep_transf.
IPR018357. Hexapep_transf_CS.
[Graphical view]

Pfam

PF00132. Hexapep. 3 hits.
[Graphical view]

PROSITE

PS00101. HEXAPEP_TRANSFERASES. 1 hit.
[Graphical view]

ProtoNet

Search...

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Entry information

Entry name

MAA_ECOLI

Accession

Primary (citable) accession number: P77791
Secondary accession number(s): Q2MBW8

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 1, 1997
Last sequence update:	January 23, 2007
Last modified:	June 16, 2009
This is version 74 of the entry and version 3 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)

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Relevant documents

Escherichia coli

Escherichia coli (strain K12): entries and cross-references to EcoGene

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families