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Q5G8Z3

- EA1_MAIZE

UniProt

Q5G8Z3 - EA1_MAIZE

Protein

Protein EGG APPARATUS-1

Gene

Ea1

Organism
Zea mays (Maize)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at transcript leveli
  1. 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

    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

    GO - Cellular componenti

    1. integral component of membrane Source: UniProtKB-KW

    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.

    Structurei

    Topological domain

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Topological domaini1 – 1515CytoplasmicSequence AnalysisAdd
    BLAST
    Topological domaini37 – 9458ExtracellularSequence AnalysisAdd
    BLAST

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei16 – 3621Helical; Signal-anchor for type II membrane proteinSequence AnalysisAdd
    BLAST

    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

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    MSSCPAIVNM KDDDGIGAMG AAVAFAAMGV FGIYFLWPVV GPTSAGMMMK   50
    APGAAGWVIC RAVFEANPQL YFTILRTAGA AAAAATFAAC SIAS 94
    Length:94
    Mass (Da):9,470
    Last modified:March 1, 2005 - v1
    Checksum:i901BC2287EEB33F4
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    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:
    EMBL
    GenBank
    DDBJ
    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