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The annotation and conditions in this rule are derived from the following entries: P07762 (GLGB_ECOLI), P9WN45 (GLGB_MYCTU), Q8GQC5 (GLGB_DICCH)

If a protein meets these conditions... i

Common conditions

Special conditions

    • Subsequence at position 411 - 411 aligns to "D" in entry P9WN45 (individually applies "Nucleophile")
    • Subsequence at position 464 - 464 aligns to "E" in entry P9WN45 (individually applies "Proton donor")

... then these annotations are applied i

Protein namei

  • Recommended name:
    1,4-alpha-glucan branching enzyme GlgB (EC:2.4.1.18)
    Alternative name(s):
    1,4-alpha-D-glucan:1,4-alpha-D-glucan 6-glucosyl-transferase
    Alpha-(1->4)-glucan branching enzyme
    Glycogen branching enzyme
    Short name:
    BE

Gene namei

  • Name:glgB

Sequence similaritiesi

Functioni

  • Catalyzes the formation of the alpha-1,6-glucosidic linkages in glycogen by scission of a 1,4-alpha-linked oligosaccharide from growing alpha-1,4-glucan chains and the subsequent attachment of the oligosaccharide to the alpha-1,6 position.

Catalytic activityi

  • Transfers a segment of a (1->4)-alpha-D-glucan chain to a primary hydroxy group in a similar glucan chain.

Subunit structurei

  • Monomer.

Pathwayi

  • Pathwayi: glycogen biosynthesis

    This protein is involved in the pathway glycogen biosynthesis, which is part of Glycan biosynthesis.
    View all proteins of this organism that are known to be involved in the pathway glycogen biosynthesis and in Glycan biosynthesis.

Active sitei

  • Nucleophile (to residues corresponding to position 411)
  • Proton donor (to residues corresponding to position 464)

Keywordsi

GO (Gene Ontology) termsi

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