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Protein

Probable xyloglucan endotransglucosylase/hydrolase protein 21

Gene

XTH21

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

Functioni

Catalyzes xyloglucan endohydrolysis (XEH) and/or endotransglycosylation (XET). Cleaves and religates xyloglucan polymers, an essential constituent of the primary cell wall, and thereby participates in cell wall construction of growing tissues (By similarity).By similarity

Catalytic activityi

Breaks a beta-(1->4) bond in the backbone of a xyloglucan and transfers the xyloglucanyl segment on to O-4 of the non-reducing terminal glucose residue of an acceptor, which can be a xyloglucan or an oligosaccharide of xyloglucan.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei102NucleophilePROSITE-ProRule annotation1
Active sitei106Proton donorPROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

  • cell wall biogenesis Source: InterPro
  • cell wall modification Source: TAIR
  • primary root development Source: TAIR
  • xyloglucan metabolic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase, Transferase

Keywords - Biological processi

Cell wall biogenesis/degradation

Enzyme and pathway databases

BioCyciARA:AT2G18800-MONOMER.
BRENDAi2.4.1.207. 399.

Protein family/group databases

CAZyiGH16. Glycoside Hydrolase Family 16.

Names & Taxonomyi

Protein namesi
Recommended name:
Probable xyloglucan endotransglucosylase/hydrolase protein 21 (EC:2.4.1.207)
Short name:
At-XTH21
Short name:
XTH-21
Gene namesi
Name:XTH21
Synonyms:XTR17
Ordered Locus Names:At2g18800
ORF Names:MSF3.18
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 2

Organism-specific databases

TAIRiAT2G18800.

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Apoplast, Cell wall, Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 25Sequence analysisAdd BLAST25
ChainiPRO_000001182126 – 305Probable xyloglucan endotransglucosylase/hydrolase protein 21Add BLAST280

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi46N-linked (GlcNAc...)Sequence analysis1
Glycosylationi110N-linked (GlcNAc...)Sequence analysis1
Glycosylationi146N-linked (GlcNAc...)Sequence analysis1
Glycosylationi206N-linked (GlcNAc...)Sequence analysis1
Glycosylationi231N-linked (GlcNAc...)Sequence analysis1

Post-translational modificationi

Contains at least one intrachain disulfide bond essential for its enzymatic activity.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiQ9ZV40.

Expressioni

Tissue specificityi

Predominantly expressed in green siliques.1 Publication

Inductioni

Down-regulated by auxin.1 Publication

Gene expression databases

GenevisibleiQ9ZV40. AT.

Interactioni

Protein-protein interaction databases

STRINGi3702.AT2G18800.1.

Structurei

3D structure databases

ProteinModelPortaliQ9ZV40.
SMRiQ9ZV40.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini26 – 216GH16PROSITE-ProRule annotationAdd BLAST191

Sequence similaritiesi

Contains 1 GH16 (glycosyl hydrolase family 16) domain.PROSITE-ProRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410IHDJ. Eukaryota.
COG2273. LUCA.
HOGENOMiHOG000236368.
InParanoidiQ9ZV40.
KOiK08235.
OMAiQDIDITW.
OrthoDBiEOG09360JBH.
PhylomeDBiQ9ZV40.

Family and domain databases

Gene3Di2.60.120.200. 1 hit.
InterProiIPR013320. ConA-like_dom.
IPR000757. GH16.
IPR008263. GH16_AS.
IPR010713. XET_C.
IPR016455. XTH.
[Graphical view]
PfamiPF00722. Glyco_hydro_16. 1 hit.
PF06955. XET_C. 1 hit.
[Graphical view]
PIRSFiPIRSF005604. XET. 1 hit.
SUPFAMiSSF49899. SSF49899. 1 hit.
PROSITEiPS01034. GH16_1. 1 hit.
PS51762. GH16_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

Q9ZV40-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVSSTLLVMS ISLFLGLSIL LVVHGKDFNQ DIDITWGDGR GNILNNGTLL
60 70 80 90 100
NLGLDQSSGS GFQSKAEYLY GKVDMQIKLV PGNSAGTVTT FYLKSQGLTW
110 120 130 140 150
DEIDFEFLGN VSGDPYIVHT NVYTQGKGDR EQQFYLWFDP TAAFHNYSIL
160 170 180 190 200
WNPSHIVFYI DGKPIREFKN LEVLGVAYPK NQPMRMYGSL WNADDWATRG
210 220 230 240 250
GLVKTNWSQG PFVASFMNYN SENACVWSIV NGTTTTSPCS PGDSTSSSSS
260 270 280 290 300
STSEWFSQRG MDSSSKKVLR WVQRKFMVYN YCKDKKRFSN GLPVECTAKN

KNTKS
Length:305
Mass (Da):34,145
Last modified:May 1, 1999 - v1
Checksum:i9B4BD59F25FA6DC7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AC005724 Genomic DNA. Translation: AAD08949.1.
CP002685 Genomic DNA. Translation: AEC06809.1.
PIRiG84568.
RefSeqiNP_179470.1. NM_127436.2.

Genome annotation databases

EnsemblPlantsiAT2G18800.1; AT2G18800.1; AT2G18800.
GeneIDi816395.
GrameneiAT2G18800.1; AT2G18800.1; AT2G18800.
KEGGiath:AT2G18800.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AC005724 Genomic DNA. Translation: AAD08949.1.
CP002685 Genomic DNA. Translation: AEC06809.1.
PIRiG84568.
RefSeqiNP_179470.1. NM_127436.2.

3D structure databases

ProteinModelPortaliQ9ZV40.
SMRiQ9ZV40.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi3702.AT2G18800.1.

Protein family/group databases

CAZyiGH16. Glycoside Hydrolase Family 16.

Proteomic databases

PaxDbiQ9ZV40.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT2G18800.1; AT2G18800.1; AT2G18800.
GeneIDi816395.
GrameneiAT2G18800.1; AT2G18800.1; AT2G18800.
KEGGiath:AT2G18800.

Organism-specific databases

TAIRiAT2G18800.

Phylogenomic databases

eggNOGiENOG410IHDJ. Eukaryota.
COG2273. LUCA.
HOGENOMiHOG000236368.
InParanoidiQ9ZV40.
KOiK08235.
OMAiQDIDITW.
OrthoDBiEOG09360JBH.
PhylomeDBiQ9ZV40.

Enzyme and pathway databases

BioCyciARA:AT2G18800-MONOMER.
BRENDAi2.4.1.207. 399.

Miscellaneous databases

PROiQ9ZV40.

Gene expression databases

GenevisibleiQ9ZV40. AT.

Family and domain databases

Gene3Di2.60.120.200. 1 hit.
InterProiIPR013320. ConA-like_dom.
IPR000757. GH16.
IPR008263. GH16_AS.
IPR010713. XET_C.
IPR016455. XTH.
[Graphical view]
PfamiPF00722. Glyco_hydro_16. 1 hit.
PF06955. XET_C. 1 hit.
[Graphical view]
PIRSFiPIRSF005604. XET. 1 hit.
SUPFAMiSSF49899. SSF49899. 1 hit.
PROSITEiPS01034. GH16_1. 1 hit.
PS51762. GH16_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiXTH21_ARATH
AccessioniPrimary (citable) accession number: Q9ZV40
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 28, 2003
Last sequence update: May 1, 1999
Last modified: November 30, 2016
This is version 122 of the entry and version 1 of the sequence. [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. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  3. 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.