P52417 · GLGS2_VICFA
- ProteinGlucose-1-phosphate adenylyltransferase small subunit 2, chloroplastic
- GeneAGPP
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids512 (go to sequence)
- Protein existenceEvidence at transcript level
- Annotation score4/5
Function
function
This protein plays a role in synthesis of starch. It catalyzes the synthesis of the activated glycosyl donor, ADP-glucose from Glc-1-P and ATP.
Catalytic activity
- alpha-D-glucose 1-phosphate + ATP + H+ = ADP-alpha-D-glucose + diphosphate
Activity regulation
Activated by 3'phosphoglycerate, inhibited by orthophosphate. Allosteric regulation.
Pathway
Glycan biosynthesis; starch biosynthesis.
GO annotations
all annotations | all molecular function | nucleotide binding | molecular_function | nucleic acid binding | dna binding | chromatin binding | dna-binding transcription factor activity | rna binding | cytoskeletal motor activity | catalytic activity | nuclease activity | signaling receptor binding | structural molecule activity | transporter activity | binding | protein binding | translation factor activity, rna binding | lipid binding | kinase activity | transferase activity | hydrolase activity | oxygen binding | enzyme regulator activity | carbohydrate binding | signaling receptor activity | translation regulator activity | transcription regulator activity | other molecular function | all biological process | carbohydrate metabolic process | generation of precursor metabolites and energy | nucleobase-containing compound metabolic process | dna metabolic process | translation | lipid metabolic process | transport | response to stress | cell cycle | cell communication | signal transduction | cell-cell signaling | multicellular organism development | circadian rhythm | biological_process | metabolic process | catabolic process | biosynthetic process | response to light stimulus | response to external stimulus | tropism | response to biotic stimulus | response to abiotic stimulus | response to endogenous stimulus | embryo development | post-embryonic development | fruit ripening | abscission | pollination | flower development | cellular process | programmed cell death | photosynthesis | cellular component organization | cell growth | protein metabolic process | cellular homeostasis | secondary metabolic process | reproductive process | cell differentiation | protein modification process | growth | epigenetic regulation of gene expression | response to chemical | anatomical structure development | regulation of molecular function | other biological process | all cellular component | cellular_component | extracellular region | cell wall | intracellular anatomical structure | nucleus | nuclear envelope | nucleoplasm | nucleolus | cytoplasm | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | cytosol | ribosome | cytoskeleton | plasma membrane | chloroplast | plastid | thylakoid | membrane | external encapsulating structure | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Molecular Function | ATP binding | |
Molecular Function | glucose-1-phosphate adenylyltransferase activity | |
Biological Process | glycogen biosynthetic process | |
Biological Process | starch biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameGlucose-1-phosphate adenylyltransferase small subunit 2, chloroplastic
- EC number
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > fabids > Fabales > Fabaceae > Papilionoideae > 50 kb inversion clade > NPAAA clade > Hologalegina > IRL clade > Fabeae > Vicia
Accessions
- Primary accessionP52417
Subcellular Location
PTM/Processing
Features
Showing features for transit peptide, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transit peptide | 1-63 | Chloroplast | ||||
Sequence: MAAIGVLKVPPSSSSSSSSSSSKAIARNLSFTSSHLSGDKIFTLSGRTRRTSGRNPFIVSPKA | ||||||
Chain | PRO_0000011157 | 64-512 | Glucose-1-phosphate adenylyltransferase small subunit 2, chloroplastic | |||
Sequence: VSDSKNSQTCLDPDASRSVLGIILGGGAGTRLYPLTKKRAKPAVPLGANYRLIDIPVSNCLNSNISKIYVLTQFNSASLNRHLSRAYASNLGGYKNEGFVEVLAAQQSPENPNWFQGTADAVRQYLWLFEEHNVLEYLVLAGDHLYRMDYERFIQAHRESDADITVAALPMDEARATAFGLMKIDEEGRIIEFSENPKGEQLKAMKVDTTILGLDDDRAKEMPYIASMGIYVVSKHVMLDLLRDKFPGANDFGSEVIPGATELGMRVQAYLYDGYWEDIGTIEAFYNANLGITKKPVPDFSFYDRSSPIYTQPRYLPPSKMLDADITDSVIGEGCVIKNCKIHHSVVGLRSCISEGAIIEDTLLMGADYYETDADRRFLAAKGGVPIGIGKNSHIRRAIIDKNARIGDDVKIINSDNVQEAARETEGYFIKSGIVTVIKDALIPSGTVI |
Expression
Tissue specificity
Leaves and seeds.
Developmental stage
It is present in young cotyledons at 14 days after fertilization (daf) when cells are still rapidly dividing. Levels steadily accumulate until the end of the cell expansion phase (35-40 daf) and with the beginning of the seeds desiccation phase at 50 daf, the levels decrease to very low levels.
Interaction
Subunit
Heterotetramer.
Structure
Family & Domains
Features
Showing features for region.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 1-21 | Disordered | ||||
Sequence: MAAIGVLKVPPSSSSSSSSSS |
Sequence similarities
Belongs to the bacterial/plant glucose-1-phosphate adenylyltransferase family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length512
- Mass (Da)56,060
- Last updated1996-10-01 v1
- Checksum060647F683526EDC