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Protein

Expansin-B9

Gene

EXPB9

Organism
Zea mays (Maize)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

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.2 Publications

GO - Biological processi

Keywordsi

Biological processCell wall biogenesis/degradation

Names & Taxonomyi

Protein namesi
Recommended name:
Expansin-B9
Alternative name(s):
Beta-expansin-1b
Pollen allergen Zea m 1
ZmEXPB9
Allergen: Zea m 1
Gene namesi
Name:EXPB9
Synonyms:EXPB1B
OrganismiZea mays (Maize)
Taxonomic identifieri4577 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogonodaeAndropogoneaeTripsacinaeZea
Proteomesi
  • UP000007305 Componenti: Unplaced

Organism-specific databases

MaizeGDBi65840

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cell wall, Membrane, Secreted

Pathology & Biotechi

Allergenic propertiesi

Causes an allergic reaction in human. Causes maize pollen allergy.

Keywords - Diseasei

Allergen

Protein family/group databases

Allergomei3529 Zea m 1.0101
680 Zea m 1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 241 PublicationAdd BLAST24
ChainiPRO_000015457525 – 269Expansin-B9Add BLAST245

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi34N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi66 ↔ 94PROSITE-ProRule annotation
Disulfide bondi97 ↔ 164PROSITE-ProRule annotation
Disulfide bondi102 ↔ 108PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiQ07154
PRIDEiQ07154

Expressioni

Tissue specificityi

Expressed in anthers and pollen.1 Publication

Developmental stagei

Expression low before and high after pollen mitosis.

Interactioni

Protein-protein interaction databases

STRINGi4577.GRMZM2G072886_P02

Structurei

3D structure databases

ProteinModelPortaliQ07154
SMRiQ07154
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini63 – 169Expansin-like EG45PROSITE-ProRule annotationAdd BLAST107
Domaini183 – 264Expansin-like CBDPROSITE-ProRule annotationAdd BLAST82

Sequence similaritiesi

Belongs to the expansin family. Expansin B subfamily.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410JU96 Eukaryota
ENOG4110738 LUCA
HOGENOMiHOG000220794

Family and domain databases

Gene3Di2.40.40.10, 1 hit
2.60.40.760, 1 hit
InterProiView protein in InterPro
IPR007118 Expan_Lol_pI
IPR007112 Expansin/allergen_DPBB_dom
IPR007117 Expansin_CBD
IPR036749 Expansin_CBD_sf
IPR005795 LolPI
IPR009009 RlpA-like_DPBB
IPR036908 RlpA-like_sf
PfamiView protein in Pfam
PF03330 DPBB_1, 1 hit
PF01357 Pollen_allerg_1, 1 hit
PRINTSiPR01225 EXPANSNFAMLY
PR00829 LOLP1ALLERGN
SMARTiView protein in SMART
SM00837 DPBB_1, 1 hit
SUPFAMiSSF49590 SSF49590, 1 hit
SSF50685 SSF50685, 1 hit
PROSITEiView protein in PROSITE
PS50843 EXPANSIN_CBD, 1 hit
PS50842 EXPANSIN_EG45, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q07154-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGSLANNIMV VGAVLAALVV GGSCGPPKVP PGPNITTNYN GKWLTARATW
60 70 80 90 100
YGQPNGAGAP DNGGACGIKN VNLPPYSGMT ACGNVPIFKD GKGCGSCYEV
110 120 130 140 150
RCKEKPECSG NPVTVFITDM NYEPIAPYHF DLSGKAFGSL AKPGLNDKLR
160 170 180 190 200
HCGIMDVEFR RVRCKYPAGQ KIVFHIEKGC NPNYVAVLVK FVADDGDIVL
210 220 230 240 250
MEIQDKLSAE WKPMKLSWGA IWRMDTAKAL KGPFSIRLTS ESGKKVIAKD
260
IIPANWRPDA VYTSNVQFY
Length:269
Mass (Da):29,081
Last modified:October 3, 2006 - v2
Checksum:iAFF6F4F72D03B501
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L14271 mRNA Translation: AAA33496.1
AY197352 mRNA Translation: AAO45607.1
PIRiJC1524
RefSeqiNP_001105209.1, NM_001111739.1
UniGeneiZm.94167

Genome annotation databases

GeneIDi542106
KEGGizma:542106

Similar proteinsi

Entry informationi

Entry nameiEXPB9_MAIZE
AccessioniPrimary (citable) accession number: Q07154
Secondary accession number(s): Q84UA8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1995
Last sequence update: October 3, 2006
Last modified: May 23, 2018
This is version 108 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

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