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Protein

Expansin-B3

Gene

EXPB3

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at transcript leveli

Functioni

May cause 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

  • cell wall organization Source: UniProtKB-KW
  • sexual reproduction Source: InterPro
  • syncytium formation Source: TAIR

Keywordsi

Biological processCell wall biogenesis/degradation

Names & Taxonomyi

Protein namesi
Recommended name:
Expansin-B3
Short name:
At-EXPB3
Short name:
AtEXPB3
Alternative name(s):
Ath-ExpBeta-1.6
Beta-expansin-3
Gene namesi
Name:EXPB3
Ordered Locus Names:At4g28250
ORF Names:F26K10.130
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 4

Organism-specific databases

TAIRilocus:2123643. AT4G28250.

Subcellular locationi

GO - Cellular componenti

  • cell wall Source: UniProtKB-SubCell
  • extracellular region Source: UniProtKB-KW
  • membrane Source: UniProtKB-SubCell
  • plasmodesma Source: TAIR

Keywords - Cellular componenti

Cell wall, Membrane, Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 25Sequence analysisAdd BLAST25
ChainiPRO_000000870926 – 264Expansin-B3Add BLAST239

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi57 ↔ 86PROSITE-ProRule annotation
Disulfide bondi89 ↔ 157PROSITE-ProRule annotation
Disulfide bondi94 ↔ 100PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

Proteomic databases

PaxDbiQ9M0I2.

Expressioni

Gene expression databases

ExpressionAtlasiQ9M0I2. baseline and differential.
GenevisibleiQ9M0I2. AT.

Interactioni

Protein-protein interaction databases

BioGridi14227. 6 interactors.
IntActiQ9M0I2. 6 interactors.
STRINGi3702.AT4G28250.1.

Structurei

3D structure databases

ProteinModelPortaliQ9M0I2.
SMRiQ9M0I2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini54 – 162Expansin-like EG45PROSITE-ProRule annotationAdd BLAST109
Domaini175 – 256Expansin-like CBDPROSITE-ProRule annotationAdd BLAST82

Sequence similaritiesi

Belongs to the expansin family. Expansin B subfamily.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410IFMZ. Eukaryota.
ENOG410YA5Q. LUCA.
HOGENOMiHOG000220794.
InParanoidiQ9M0I2.
OMAiRNWAPKA.
OrthoDBiEOG09360IUM.
PhylomeDBiQ9M0I2.

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.
IPR005795. LolPI.
IPR009009. RlpA-like_DPBB.
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.

This entry describes 1 isoform i produced by alternative splicing. AlignAdd to basket

Note: A number of isoforms are produced. According to EST sequences.
Isoform 1 (identifier: Q9M0I2-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MQLFPVMLAT LCIVLQLLIG SSALATTNRH VSNSHWLPAV ATWYGSPNGD
60 70 80 90 100
GSDGGACGYG TLVDVKPLHA RVGAVNPILF KNGEGCGACY KVRCLDKSIC
110 120 130 140 150
SRRAVTVIIT DECPGCSKTS THFDLSGAVF GRLAIAGESG PLRNRGLIPV
160 170 180 190 200
IYRRTACKYR GKNIAFHVNE GSTDFWLSLL VEFEDGEGDI GSMHIRQAGA
210 220 230 240 250
REWLEMKHVW GANWCIIGGP LKGPFSIKLT TLSAGKTLSA TDVVPRNWAP
260
KATYSSRLNF SPVL
Length:264
Mass (Da):28,425
Last modified:March 5, 2002 - v2
Checksum:i627A6AEA5127C716
GO

Sequence cautioni

The sequence CAB79627 differs from that shown. Reason: Erroneous gene model prediction.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL161572 Genomic DNA. Translation: CAB79627.1. Sequence problems.
CP002687 Genomic DNA. Translation: AEE85458.1.
AY039986 mRNA. Translation: AAK64163.1.
AY133801 mRNA. Translation: AAM91735.1.
RefSeqiNP_567803.1. NM_118965.4. [Q9M0I2-1]
UniGeneiAt.23110.

Genome annotation databases

EnsemblPlantsiAT4G28250.1; AT4G28250.1; AT4G28250. [Q9M0I2-1]
GeneIDi828940.
GrameneiAT4G28250.1; AT4G28250.1; AT4G28250.
KEGGiath:AT4G28250.

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Web resourcesi

EXPANSIN homepage

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL161572 Genomic DNA. Translation: CAB79627.1. Sequence problems.
CP002687 Genomic DNA. Translation: AEE85458.1.
AY039986 mRNA. Translation: AAK64163.1.
AY133801 mRNA. Translation: AAM91735.1.
RefSeqiNP_567803.1. NM_118965.4. [Q9M0I2-1]
UniGeneiAt.23110.

3D structure databases

ProteinModelPortaliQ9M0I2.
SMRiQ9M0I2.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi14227. 6 interactors.
IntActiQ9M0I2. 6 interactors.
STRINGi3702.AT4G28250.1.

Proteomic databases

PaxDbiQ9M0I2.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT4G28250.1; AT4G28250.1; AT4G28250. [Q9M0I2-1]
GeneIDi828940.
GrameneiAT4G28250.1; AT4G28250.1; AT4G28250.
KEGGiath:AT4G28250.

Organism-specific databases

AraportiAT4G28250.
TAIRilocus:2123643. AT4G28250.

Phylogenomic databases

eggNOGiENOG410IFMZ. Eukaryota.
ENOG410YA5Q. LUCA.
HOGENOMiHOG000220794.
InParanoidiQ9M0I2.
OMAiRNWAPKA.
OrthoDBiEOG09360IUM.
PhylomeDBiQ9M0I2.

Miscellaneous databases

PROiQ9M0I2.

Gene expression databases

ExpressionAtlasiQ9M0I2. baseline and differential.
GenevisibleiQ9M0I2. AT.

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.
IPR005795. LolPI.
IPR009009. RlpA-like_DPBB.
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.
ProtoNetiSearch...

Entry informationi

Entry nameiEXPB3_ARATH
AccessioniPrimary (citable) accession number: Q9M0I2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 5, 2002
Last sequence update: March 5, 2002
Last modified: February 15, 2017
This is version 128 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, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.