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Protein

Expansin-A4

Gene

EXPA4

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Causes loosening and extension of plant cell walls by disrupting non-covalent bonding between cellulose microfibrils and matrix glucans. No enzymatic activity has been found (By similarity).By similarity

GO - Biological processi

  • plant-type cell wall organization Source: InterPro
  • syncytium formation Source: TAIR

Keywordsi

Biological processCell wall biogenesis/degradation

Names & Taxonomyi

Protein namesi
Recommended name:
Expansin-A4
Short name:
AtEXPA4
Alternative name(s):
Alpha-expansin-4
Short name:
At-EXP4
Short name:
AtEx4
Ath-ExpAlpha-1.6
Gene namesi
Name:EXPA4
Synonyms:EXP4
Ordered Locus Names:At2g39700
ORF Names:F17A14.7
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 2

Organism-specific databases

AraportiAT2G39700
TAIRilocus:2043240 AT2G39700

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

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 201 PublicationAdd BLAST20
ChainiPRO_000000868521 – 257Expansin-A4Add BLAST237

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi52 ↔ 80PROSITE-ProRule annotation
Disulfide bondi83 ↔ 158PROSITE-ProRule annotation
Disulfide bondi88 ↔ 95PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

Proteomic databases

PaxDbiO48818

Expressioni

Tissue specificityi

Expressed in the vascular bundles throughout the plant.1 Publication

Gene expression databases

ExpressionAtlasiO48818 baseline and differential
GenevisibleiO48818 AT

Interactioni

Protein-protein interaction databases

STRINGi3702.AT2G39700.1

Structurei

3D structure databases

ProteinModelPortaliO48818
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini49 – 163Expansin-like EG45PROSITE-ProRule annotationAdd BLAST115
Domaini173 – 252Expansin-like CBDPROSITE-ProRule annotationAdd BLAST80

Sequence similaritiesi

Belongs to the expansin family. Expansin A subfamily.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410IKDM Eukaryota
ENOG410YEM2 LUCA
HOGENOMiHOG000220793
InParanoidiO48818
OMAiNIAPSHW
OrthoDBiEOG09360L23
PhylomeDBiO48818

Family and domain databases

Gene3Di2.40.40.10, 1 hit
2.60.40.760, 1 hit
InterProiView protein in InterPro
IPR007118 Expan_Lol_pI
IPR002963 Expansin
IPR007112 Expansin/allergen_DPBB_dom
IPR007117 Expansin_CBD
IPR036749 Expansin_CBD_sf
IPR009009 RlpA-like_DPBB
IPR036908 RlpA-like_sf
PfamiView protein in Pfam
PF03330 DPBB_1, 1 hit
PF01357 Pollen_allerg_1, 1 hit
PRINTSiPR01226 EXPANSIN
PR01225 EXPANSNFAMLY
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.

O48818-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAIKLAILFT TFVLFSLADA RIPGIYSGGA WQNAHATFYG GSDASGTMGG
60 70 80 90 100
ACGYGNLYSQ GYGTNTAALS TALFNNGMSC GACFELKCAN DPQWCHSGSP
110 120 130 140 150
SILITATNFC PPNLAQPSDN GGWCNPPREH FDLAMPVFLK IAQYRAGIVP
160 170 180 190 200
VSYRRVPCRK RGGIRFTING HRYFNLVLIT NVAGAGDIVR ASVKGSRTGW
210 220 230 240 250
MSLSRNWGQN WQSNAVLVGQ ALSFRVTGSD RRTSTSWNMV PSNWQFGQTF

VGKNFRV
Length:257
Mass (Da):27,848
Last modified:June 1, 1998 - v1
Checksum:i5C510E930A35B736
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti155R → S in AAM62937 (Ref. 4) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AC003674 Genomic DNA Translation: AAB97125.1
CP002685 Genomic DNA Translation: AEC09708.1
AF410277 mRNA Translation: AAK95263.1
AY062683 mRNA Translation: AAL32761.1
AY093338 mRNA Translation: AAM13337.1
AY085719 mRNA Translation: AAM62937.1
PIRiD84820
RefSeqiNP_181500.1, NM_129526.3
UniGeneiAt.22579

Genome annotation databases

EnsemblPlantsiAT2G39700.1; AT2G39700.1; AT2G39700
GeneIDi818553
GrameneiAT2G39700.1; AT2G39700.1; AT2G39700
KEGGiath:AT2G39700

Similar proteinsi

Entry informationi

Entry nameiEXPA4_ARATH
AccessioniPrimary (citable) accession number: O48818
Secondary accession number(s): P80837, Q8LDZ1
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 5, 2002
Last sequence update: June 1, 1998
Last modified: April 25, 2018
This is version 134 of the entry and version 1 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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Main funding by: National Institutes of Health