Q1YG22 · Q1YG22_AURMS
- ProteinAlpha-1,4-glucan:maltose-1-phosphate maltosyltransferase
- GeneglgE
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids721 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Maltosyltransferase that uses maltose 1-phosphate (M1P) as the sugar donor to elongate linear or branched alpha-(1->4)-glucans. Is involved in a branched alpha-glucan biosynthetic pathway from trehalose, together with TreS, Mak and GlgB.
Catalytic activity
- [(1->4)-alpha-D-glucosyl](n) + alpha-maltose 1-phosphate = [(1->4)-alpha-D-glucosyl](n+2) + phosphate
[(1→4)-α-D-glucosyl](n) RHEA-COMP:9584 + CHEBI:63576 = [(1→4)-α-D-glucosyl](n+2) RHEA-COMP:10183 + CHEBI:43474
Features
Showing features for binding site, active site, site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 322 | alpha-maltose 1-phosphate (UniProtKB | ChEBI) | ||||
Sequence: K | ||||||
Binding site | 382 | alpha-maltose 1-phosphate (UniProtKB | ChEBI) | ||||
Sequence: Q | ||||||
Binding site | 417 | alpha-maltose 1-phosphate (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Active site | 453 | Nucleophile | ||||
Sequence: D | ||||||
Binding site | 454 | alpha-maltose 1-phosphate (UniProtKB | ChEBI) | ||||
Sequence: N | ||||||
Active site | 482 | Proton donor | ||||
Sequence: E | ||||||
Site | 540 | Transition state stabilizer | ||||
Sequence: D | ||||||
Binding site | 593-594 | alpha-maltose 1-phosphate (UniProtKB | ChEBI) | ||||
Sequence: KY |
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | hexosyltransferase activity | |
Molecular Function | hydrolase activity, hydrolyzing O-glycosyl compounds | |
Biological Process | alpha-glucan biosynthetic process |
Keywords
- Molecular function
- Biological process
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameAlpha-1,4-glucan:maltose-1-phosphate maltosyltransferase
- EC number
- Short namesGMPMT
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Alphaproteobacteria > Hyphomicrobiales > Aurantimonadaceae > Aurantimonas
Accessions
- Primary accessionQ1YG22
Proteomes
Interaction
Subunit
Homodimer.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 274-608 | Glycosyl hydrolase family 13 catalytic | ||||
Sequence: ELFPRSQSGDVDRHGTFDNVIDRLPDIQDMGFDVLYFPPIHPIGTANRKGRNNTLTPSPTDPGSPYAIGSPEGGHDAIHPELGNFEDFARLVSRARDHGLEVAIDFAIQCSPDHPWIREHPEWFDWRPDGTIKYAENPPKKYEDIVNVHFYRGALPSIWYALRDIVLFWLDKGVRIFRVDNPHTKPFPFWEWMIAEVRKVDPGAIFLAEAFTRPKVMKRLAKVGYNQSYSYFTWRNTKAELVEYLTELTQEECAEYMRPNFFVNTPDINPVYLQVSGRPGFQTRLALAASLGGNYGVYSGFELCEFLPVPGKEEYLNSEKYEIRAFDWKAEGNIR |
Sequence similarities
Belongs to the glycosyl hydrolase 13 family. GlgE subfamily.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length721
- Mass (Da)82,636
- Last updated2006-05-02 v1
- Checksum96EC2DE4841DD6E2
Keywords
- Technical term