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Protein

Acidic endochitinase SE2

Gene

SE2

Organism
Beta vulgaris (Sugar beet)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

This protein functions as a defense against chitin containing fungal pathogens. This endochitinase also exhibits exochitinase activity, i.e. it is capable of hydrolyzing chito-oligosaccharides, including chitobiose.

Catalytic activityi

Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei151Proton donorPROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosidase, Hydrolase
Biological processCarbohydrate metabolism, Chitin degradation, Polysaccharide degradation

Protein family/group databases

CAZyiGH18. Glycoside Hydrolase Family 18.

Names & Taxonomyi

Protein namesi
Recommended name:
Acidic endochitinase SE2 (EC:3.2.1.14)
Gene namesi
Name:SE2
OrganismiBeta vulgaris (Sugar beet)
Taxonomic identifieri161934 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeCaryophyllalesChenopodiaceaeBetoideaeBeta

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 25Add BLAST25
ChainiPRO_000001191426 – 293Acidic endochitinase SE2Add BLAST268

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi45 ↔ 91By similarity
Disulfide bondi75 ↔ 81By similarity
Disulfide bondi183 ↔ 212By similarity

Keywords - PTMi

Disulfide bond

Expressioni

Tissue specificityi

Accumulates in leaves during infection.

Inductioni

By fungal infection.

Structurei

3D structure databases

ProteinModelPortaliP36910.
SMRiP36910.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Signal

Family and domain databases

InterProiView protein in InterPro
IPR001223. Glyco_hydro18_cat.
IPR001579. Glyco_hydro_18_chit_AS.
IPR017853. Glycoside_hydrolase_SF.
PfamiView protein in Pfam
PF00704. Glyco_hydro_18. 1 hit.
SUPFAMiSSF51445. SSF51445. 1 hit.
PROSITEiView protein in PROSITE
PS01095. CHITINASE_18. 1 hit.

Sequencei

Sequence statusi: Complete.

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

P36910-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAAKIVSVLF LISLLIFASF ESSHGSQIVI YWGQNGDEGS LADTCNSGNY
60 70 80 90 100
GTVILAFVAT FGNGQTPALN LAGHCDPATN CNSLSSDIKT CQQAGIKVLL
110 120 130 140 150
SIGGGAGGYS LSSTDDANTF ADYLWNTYLG GQSSTRPLGD AVLDGIDFDI
160 170 180 190 200
ESGDGRFWDD LARALAGHNN GQKTVYLSAA PQCPLPDASL STAIATGLFD
210 220 230 240 250
YVWVQFYNNP PCQYDTSADN LLSSWNQWTT VQANQIFLGL PASTDAAGSG
260 270 280 290
FIPADALTSQ VLPTIKGSAK YGGVMLWSKA YDSGYSSAIK SSV
Length:293
Mass (Da):30,729
Last modified:June 1, 1994 - v1
Checksum:i0E9019D28FD34123
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
S66038 mRNA. Translation: AAB28479.1.

Similar proteinsi

Entry informationi

Entry nameiCHIE_BETVU
AccessioniPrimary (citable) accession number: P36910
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 1, 1994
Last sequence update: June 1, 1994
Last modified: May 10, 2017
This is version 88 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

Direct protein sequencing

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families