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Q5G8Z3

- EA1_MAIZE

UniProt

Q5G8Z3 - EA1_MAIZE

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Protein

Protein EGG APPARATUS-1

Gene

Ea1

Organism
Zea mays (Maize)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at transcript leveli

Functioni

Involved in short-range signaling required for pollen tube attraction by the female gametophyte. Required for female fertility.

GO - Biological processi

  1. single fertilization Source: UniProtKB-KW
Complete GO annotation...

Keywords - Biological processi

Fertilization

Names & Taxonomyi

Protein namesi
Recommended name:
Protein EGG APPARATUS-1
Alternative name(s):
ZmEA1
Gene namesi
Name:Ea1
OrganismiZea mays (Maize)
Taxonomic identifieri4577 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogoneaeZea

Organism-specific databases

GrameneiQ5G8Z3.
MaizeGDBi936188.

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 1515CytoplasmicSequence AnalysisAdd
BLAST
Transmembranei16 – 3621Helical; Signal-anchor for type II membrane proteinSequence AnalysisAdd
BLAST
Topological domaini37 – 9458ExtracellularSequence AnalysisAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 9494Protein EGG APPARATUS-1PRO_0000086887Add
BLAST

Post-translational modificationi

Possible proteolysis of the C-terminal region from the predicted transmembrane domain to permit secretion and transport of the mature protein to the cell walls of the nucellus, allowing the spreading from the egg cell apparatus to the micropylar opening of the ovule.

Expressioni

Tissue specificityi

Expressed only in the egg apparatus, consisting of the egg cell and two synergids. Not detected in the central cell, antipodals, and nucellar and integumental cells.1 Publication

Developmental stagei

Exclusively expressed in the mature egg cells before fertilization.1 Publication

Inductioni

Rapid down-regulation and/or degradation after fertilization.

Family & Domainsi

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi78 – 9316Ala-richAdd
BLAST

Keywords - Domaini

Signal-anchor, Transmembrane, Transmembrane helix

Sequencei

Sequence statusi: Complete.

Q5G8Z3-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MSSCPAIVNM KDDDGIGAMG AAVAFAAMGV FGIYFLWPVV GPTSAGMMMK
60 70 80 90
APGAAGWVIC RAVFEANPQL YFTILRTAGA AAAAATFAAC SIAS
Length:94
Mass (Da):9,470
Last modified:March 1, 2005 - v1
Checksum:i901BC2287EEB33F4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY733074 Genomic DNA. Translation: AAW58117.1.

Cross-referencesi

Web resourcesi

Protein Spotlight

Flower power - Issue 57 of April 2005

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY733074 Genomic DNA. Translation: AAW58117.1 .

3D structure databases

ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Organism-specific databases

Gramenei Q5G8Z3.
MaizeGDBi 936188.

Family and domain databases

ProtoNeti Search...

Publicationsi

  1. "Micropylar pollen tube guidance by egg apparatus 1 of maize."
    Marton M.L., Cordts S., Broadhvest J., Dresselhaus T.
    Science 307:573-576(2005) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], DEVELOPMENTAL STAGE, TISSUE SPECIFICITY.
    Strain: cv. A188.
    Tissue: Egg.

Entry informationi

Entry nameiEA1_MAIZE
AccessioniPrimary (citable) accession number: Q5G8Z3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 29, 2005
Last sequence update: March 1, 2005
Last modified: October 1, 2014
This is version 32 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Documents

  1. Protein Spotlight
    Protein Spotlight articles and cited UniProtKB/Swiss-Prot entries

External Data

Dasty 3