P85355 (CHI3_TAXBA) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names	Recommended name: Endochitinase 3 EC=3.2.1.14
Organism	Taxus baccata (English yew)
Taxonomic identifier	25629 [NCBI]
Taxonomic lineage	Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Coniferopsida › Coniferales › Taxaceae › Taxus

Protein attributes

Sequence length	13 AA.
Sequence status	Fragment.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	Defense against chitin containing fungal pathogens.
Catalytic activity	Random hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins.
Subcellular location	Secreted › cell wall Ref.1.
Sequence similarities	Belongs to the glycosyl hydrolase 19 family. Chitinase class I subfamily.

Ontologies

Keywords
Biological process	Carbohydrate metabolism Chitin degradation Plant defense Polysaccharide degradation
Cellular component	Cell wall Secreted
Molecular function	Glycosidase Hydrolase
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological process	chitin catabolic process Inferred from electronic annotation. Source: UniProtKB-KW defense response Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cell wall Inferred from electronic annotation. Source: UniProtKB-SubCell extracellular region Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	chitinase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	‹1 – ›13	›13	Endochitinase 3		PRO_0000315928
Experimental info
	Sequence uncertainty	1	1	M or F Ref.1
	Sequence uncertainty	12	1	L or I Ref.1
	Sequence uncertainty	13	1	K or Q Ref.1
	Non-terminal residue	1	1
	Non-terminal residue	13	1

Sequences

	Sequence		Length	Mass (Da)
	P85355 [UniParc]. Last modified January 15, 2008. Version 1. Checksum: 91BD68DF87925861	FASTA	13	1,452
	10 MYDESTGYSS ALK

References

[1]	"Analysis of the soluble cell wall proteome of gymnosperms." Uzal E.N., Gomez-Ros L.V., Hernandez J.A., Pedreno M.A., Cuello J., Ros Barcelo A. J. Plant Physiol. 166:831-843(2009) [PubMed: 19157640] [Abstract] Cited for: PROTEIN SEQUENCE, SUBCELLULAR LOCATION. Strain: PC-1008. Tissue: Callus.

Cross-references

3D structure databases
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
PROSITE	PS00773. CHITINASE_19_1. Partial match. PS00774. CHITINASE_19_2. Partial match. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CHI3_TAXBA

Accession

Primary (citable) accession number: P85355

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	January 15, 2008
Last modified:	May 31, 2011
This is version 16 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program