Q07154 · EXPB9_MAIZE
- ProteinExpansin-B9
- GeneEXPB9
- StatusUniProtKB reviewed (Swiss-Prot)
- Organism
- Amino acids269 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score5/5
Function
function
May aid fertilization by loosening the cell wall of the stigma and style, thereby facilitating penetration of the pollen tube. Acts selectively on grass cell walls, which are relatively poor in pectins and xyloglucans and rich in glucuronoarabinoxylans and (1-3),(1-4)-beta-D-glucans, when compared with cell walls of other angiosperms, including other monocots.
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 | extracellular region | |
Cellular Component | membrane | |
Biological Process | anatomical structure morphogenesis | |
Biological Process | plant-type cell wall loosening | |
Biological Process | plant-type cell wall organization or biogenesis | |
Biological Process | sexual reproduction |
Keywords
- Biological process
Protein family/group databases
Names & Taxonomy
Protein names
- Recommended nameExpansin-B9
- Alternative names
- Allergen nameZea m 1
Gene names
Organism names
- Organism
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > Liliopsida > Poales > Poaceae > PACMAD clade > Panicoideae > Andropogonodae > Andropogoneae > Tripsacinae > Zea
Accessions
- Primary accessionQ07154
- Secondary accessions
Proteomes
Organism-specific databases
Subcellular Location
Phenotypes & Variants
Allergenic properties
Causes an allergic reaction in human. Causes maize pollen allergy.
Keywords
- Disease
Protein family/group databases
PTM/Processing
Features
Showing features for signal, chain, glycosylation, disulfide bond.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Signal | 1-24 | |||||
Sequence: MGSLANNIMVVGAVLAALVVGGSC | ||||||
Chain | PRO_0000154575 | 25-269 | Expansin-B9 | |||
Sequence: GPPKVPPGPNITTNYNGKWLTARATWYGQPNGAGAPDNGGACGIKNVNLPPYSGMTACGNVPIFKDGKGCGSCYEVRCKEKPECSGNPVTVFITDMNYEPIAPYHFDLSGKAFGSLAKPGLNDKLRHCGIMDVEFRRVRCKYPAGQKIVFHIEKGCNPNYVAVLVKFVADDGDIVLMEIQDKLSAEWKPMKLSWGAIWRMDTAKALKGPFSIRLTSESGKKVIAKDIIPANWRPDAVYTSNVQFY | ||||||
Glycosylation | 34 | N-linked (GlcNAc...) asparagine | ||||
Sequence: N | ||||||
Disulfide bond | 66↔94 | |||||
Sequence: CGIKNVNLPPYSGMTACGNVPIFKDGKGC | ||||||
Disulfide bond | 97↔164 | |||||
Sequence: CYEVRCKEKPECSGNPVTVFITDMNYEPIAPYHFDLSGKAFGSLAKPGLNDKLRHCGIMDVEFRRVRC | ||||||
Disulfide bond | 102↔108 | |||||
Sequence: CKEKPEC |
Keywords
- PTM
Proteomic databases
PTM databases
Expression
Tissue specificity
Expressed in anthers and pollen.
Developmental stage
Expression low before and high after pollen mitosis.
Gene expression databases
Interaction
Protein-protein interaction databases
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 63-169 | Expansin-like EG45 | ||||
Sequence: GGACGIKNVNLPPYSGMTACGNVPIFKDGKGCGSCYEVRCKEKPECSGNPVTVFITDMNYEPIAPYHFDLSGKAFGSLAKPGLNDKLRHCGIMDVEFRRVRCKYPAG | ||||||
Domain | 183-264 | Expansin-like CBD | ||||
Sequence: NYVAVLVKFVADDGDIVLMEIQDKLSAEWKPMKLSWGAIWRMDTAKALKGPFSIRLTSESGKKVIAKDIIPANWRPDAVYTS |
Sequence similarities
Belongs to the expansin family. Expansin B subfamily.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length269
- Mass (Da)29,081
- Last updated2006-10-03 v2
- ChecksumAFF6F4F72D03B501
Keywords
- Technical term