Reviewed, UniProtKB/Swiss-Prot P21225 (CHI1_PEA)

Names and origin

Protein names	Recommended name:     Endochitinase A1     EC=3.2.1.14
Organism	Pisum sativum (Garden pea)
Taxonomic identifier	3888 [NCBI]
Taxonomic lineage	Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › eurosids I › Fabales › Fabaceae › Papilionoideae › Fabeae › Pisum

Protein attributes

Sequence length	15 AA.
Sequence status	Fragment.
Sequence processing	The displayed sequence is not processed.
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.
Induction	By infection with the fungal pathogen Ascochyta pisi.
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
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 polysaccharide catabolic process 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 – ›15	›15	Endochitinase A1		PRO_0000124828
Experimental info
	Non-terminal residue	15	1

Sequences

	Sequence		Length	Mass (Da)
	P21225-1 [UniParc]. Last modified May 1, 1991. Version 1. Checksum: 23355ED6BB11E869	FASTA	15	1,439
	10 EQCGNQAGGX VPPNG

References

[1]	"Induction, purification and characterization of chitinase isolated from pea leaves inoculated with Ascochyta pisi." Vad K., Mikkelsen J.D., Collinge D.B. Planta 184:24-29(1991) Cited for: PROTEIN SEQUENCE. Strain: cv. Birte. Tissue: Leaf.

Cross-references

3D structure databases
ModBase	Search...
Protein family/group databases
CAZy	GH19. Glycoside Hydrolase Family 19.
Enzyme and pathway databases
BRENDA	3.2.1.14. 287.
Family and domain databases
InterPro	IPR000726. Glyco_hydro_19_cat. [Graphical view]
PROSITE	PS00773. CHITINASE_19_1. Partial match. PS00774. CHITINASE_19_2. Partial match. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CHI1_PEA

Accession

Primary (citable) accession number: P21225

Entry history

Integrated into UniProtKB/Swiss-Prot:	May 1, 1991
Last sequence update:	May 1, 1991
Last modified:	April 14, 2009
This is version 58 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)