ID   CHIB_PEA                Reviewed;          23 AA.
AC   P21227;
DT   01-MAY-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1991, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Endochitinase B;
DE            EC=3.2.1.14;
DE   Flags: Fragment;
OS   Pisum sativum (Garden pea).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; IRL clade; Fabeae; Pisum.
OX   NCBI_TaxID=3888;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=cv. Birte; TISSUE=Leaf;
RA   Vad K., Mikkelsen J.D., Collinge D.B.;
RT   "Induction, purification and characterization of chitinase isolated from
RT   pea leaves inoculated with Ascochyta pisi.";
RL   Planta 184:24-29(1991).
CC   -!- FUNCTION: Defense against chitin-containing fungal pathogens.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide
CC         (1->4)-beta-linkages in chitin and chitodextrins.; EC=3.2.1.14;
CC   -!- INDUCTION: By infection with the fungal pathogen Ascochyta pisi.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 19 family. Chitinase
CC       class I subfamily. {ECO:0000305}.
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DR   AlphaFoldDB; P21227; -.
DR   GO; GO:0008061; F:chitin binding; IEA:UniProtKB-KW.
DR   GO; GO:0004568; F:chitinase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006032; P:chitin catabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0006952; P:defense response; IEA:UniProtKB-KW.
DR   GO; GO:0000272; P:polysaccharide catabolic process; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.60.10; -; 1.
DR   InterPro; IPR001002; Chitin-bd_1.
DR   InterPro; IPR036861; Endochitinase-like_sf.
DR   Pfam; PF00187; Chitin_bind_1; 1.
DR   SUPFAM; SSF57016; SSF57016; 1.
PE   1: Evidence at protein level;
KW   Carbohydrate metabolism; Chitin degradation; Chitin-binding;
KW   Direct protein sequencing; Glycosidase; Hydrolase; Plant defense;
KW   Polysaccharide degradation.
FT   CHAIN           1..>23
FT                   /note="Endochitinase B"
FT                   /id="PRO_0000124829"
FT   NON_TER         23
SQ   SEQUENCE   23 AA;  2424 MW;  05CF70DA4261BC61 CRC64;
     EQCGRQAGGA TCPNNLCCSQ YGY