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B5E4A8 · GLMU_STRP4

Function

function

Catalyzes the last two sequential reactions in the de novo biosynthetic pathway for UDP-N-acetylglucosamine (UDP-GlcNAc). The C-terminal domain catalyzes the transfer of acetyl group from acetyl coenzyme A to glucosamine-1-phosphate (GlcN-1-P) to produce N-acetylglucosamine-1-phosphate (GlcNAc-1-P), which is converted into UDP-GlcNAc by the transfer of uridine 5-monophosphate (from uridine 5-triphosphate), a reaction catalyzed by the N-terminal domain.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 1 Mg2+ ion per subunit.

Pathway

Nucleotide-sugar biosynthesis; UDP-N-acetyl-alpha-D-glucosamine biosynthesis; N-acetyl-alpha-D-glucosamine 1-phosphate from alpha-D-glucosamine 6-phosphate (route II): step 2/2.
Nucleotide-sugar biosynthesis; UDP-N-acetyl-alpha-D-glucosamine biosynthesis; UDP-N-acetyl-alpha-D-glucosamine from N-acetyl-alpha-D-glucosamine 1-phosphate: step 1/1.
Bacterial outer membrane biogenesis; LPS lipid A biosynthesis.

Features

Showing features for binding site, active site.

Type
IDPosition(s)Description
Binding site8-11UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site22UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site72UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site77-78UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site102Mg2+ (UniProtKB | ChEBI)
Binding site139UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site154UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site169UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site227Mg2+ (UniProtKB | ChEBI)
Binding site227UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site332UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site350UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Active site362Proton acceptor
Binding site365UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site376UDP-N-acetyl-alpha-D-glucosamine (UniProtKB | ChEBI)
Binding site379acetyl-CoA (UniProtKB | ChEBI)
Binding site385-386acetyl-CoA (UniProtKB | ChEBI)
Binding site404acetyl-CoA (UniProtKB | ChEBI)
Binding site422acetyl-CoA (UniProtKB | ChEBI)
Binding site439acetyl-CoA (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentcytoplasm
Molecular Functionglucosamine-1-phosphate N-acetyltransferase activity
Molecular Functionmagnesium ion binding
Molecular FunctionUDP-N-acetylglucosamine diphosphorylase activity
Biological Processcell morphogenesis
Biological Processcell wall organization
Biological Processlipid A biosynthetic process
Biological Processpeptidoglycan biosynthetic process
Biological Processregulation of cell shape
Biological ProcessUDP-N-acetylglucosamine biosynthetic process

Keywords

Enzyme and pathway databases

    • UPA00113UER00532
    • UPA00113UER00533
    • UPA00973

Names & Taxonomy

Protein names

  • Recommended name
    Bifunctional protein GlmU

Including 2 domains:

  • Recommended name
    UDP-N-acetylglucosamine pyrophosphorylase
  • EC number
  • Alternative names
    • N-acetylglucosamine-1-phosphate uridyltransferase
  • Recommended name
    Glucosamine-1-phosphate N-acetyltransferase
  • EC number

Gene names

    • Name
      glmU
    • Ordered locus names
      SPG_0913

Organism names

Accessions

  • Primary accession
    B5E4A8

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_10001864961-459Bifunctional protein GlmU

Interaction

Subunit

Homotrimer.

Family & Domains

Features

Showing features for region.

TypeIDPosition(s)Description
Region1-229Pyrophosphorylase
Region230-250Linker
Region251-459N-acetyltransferase

Sequence similarities

In the N-terminal section; belongs to the N-acetylglucosamine-1-phosphate uridyltransferase family.
In the C-terminal section; belongs to the transferase hexapeptide repeat family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    459
  • Mass (Da)
    49,332
  • Last updated
    2008-10-14 v1
  • MD5 Checksum
    52CF1EF74AE980C8C5ACFC10155365C4
MSNFAIXLAAGKGTRMKSDLPKVLHKVAGIPMLEYVXRSVGAIXPXKTVTVVGHKAELVEEVLTGQTEFVTQSEQLGTGHAVMMTEPILEGLSGHTLVIAGDTPLITGESLKNLIDFHINHKNVATILTAETDNPFGYGRIVRNDNAEXLRIVEQKDATDFEKQIKEINTGTYVFDNERLFEALKNINTNNAQGEYYITDVIGIFRETGEKVGAYTLKDFDESLGVNDRVALATAESVMRRRINHKHMVNGVSFVNPEATYIDIDVEIAPEVQIEANVTLKGQTKIGAETVLTNGTYVVDSTIGAGAVITNSMIEESSVADGVTVGPYAHIRPNSSLGAQVHIGNFVEVKGSSIGENTKAGHLTYIGNCEVGSNVNFGAGTITVNYDGKNKYKTVIGDNVFVGSNSTIIAPVXLGDNSLVGAGSTITKDVPADAIAIGRGRQINKDEYATRLPHHPKNQ

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP001015
EMBL· GenBank· DDBJ
ACF56719.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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