ID   LYSC_CALCC              Reviewed;         129 AA.
AC   P00699;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   02-SEP-2026, entry version 105.
DE   RecName: Full=Lysozyme C;
DE            EC=3.2.1.17;
DE   AltName: Full=1,4-beta-N-acetylmuramidase C;
GN   Name=LYZ;
OS   Callipepla californica (California quail) (Lophortyx californica).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC   Coelurosauria; Aves; Neognathae; Galloanserae; Galliformes; Odontophoridae;
OC   Callipepla.
OX   NCBI_TaxID=67771;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Egg white;
RX   PubMed=89864; DOI=10.1021/bi00580a008;
RA   Ibrahimi I.M., Prager E.M., White T.J., Wilson A.C.;
RT   "Amino acid sequence of California quail lysozyme. Effect of evolutionary
RT   substitutions on the antigenic structure of lysozyme.";
RL   Biochemistry 18:2736-2744(1979).
CC   -!- FUNCTION: Lysozymes have primarily a bacteriolytic function; those in
CC       tissues and body fluids are associated with the monocyte-macrophage
CC       system and enhance the activity of immunoagents.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Hydrolysis of (1->4)-beta-linkages between N-acetylmuramic
CC         acid and N-acetyl-D-glucosamine residues in a peptidoglycan and
CC         between N-acetyl-D-glucosamine residues in chitodextrins.;
CC         EC=3.2.1.17;
CC   -!- SUBUNIT: Monomer.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- MISCELLANEOUS: Lysozyme C is capable of both hydrolysis and
CC       transglycosylation; it also shows a slight esterase activity. It acts
CC       rapidly on both peptide-substituted and unsubstituted peptidoglycan,
CC       and slowly on chitin oligosaccharides.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 22 family.
CC       {ECO:0000255|PROSITE-ProRule:PRU00680}.
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DR   PIR; A00854; LZQJEC.
DR   AlphaFoldDB; P00699; -.
DR   BMRB; P00699; -.
DR   SMR; P00699; -.
DR   CAZy; GH22; Glycoside Hydrolase Family 22.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-ARBA.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0003796; F:lysozyme activity; IEA:UniProtKB-EC.
DR   GO; GO:0016998; P:cell wall macromolecule catabolic process; IEA:UniProtKB-ARBA.
DR   GO; GO:0050829; P:defense response to Gram-negative bacterium; IEA:TreeGrafter.
DR   GO; GO:0050830; P:defense response to Gram-positive bacterium; IEA:TreeGrafter.
DR   CDD; cd16897; LYZ_C; 1.
DR   FunFam; 1.10.530.10:FF:000001; Lysozyme C; 1.
DR   Gene3D; 1.10.530.10; -; 1.
DR   InterPro; IPR001916; Glyco_hydro_22.
DR   InterPro; IPR019799; Glyco_hydro_22_CS.
DR   InterPro; IPR000974; Glyco_hydro_22_lys.
DR   InterPro; IPR023346; Lysozyme-like_dom_sf.
DR   PANTHER; PTHR11407; LYSOZYME C; 1.
DR   PANTHER; PTHR11407:SF28; LYSOZYME C; 1.
DR   Pfam; PF00062; Lys; 1.
DR   PRINTS; PR00137; LYSOZYME.
DR   PRINTS; PR00135; LYZLACT.
DR   SMART; SM00263; LYZ1; 1.
DR   SUPFAM; SSF53955; Lysozyme-like; 1.
DR   PROSITE; PS00128; GLYCOSYL_HYDROL_F22_1; 1.
DR   PROSITE; PS51348; GLYCOSYL_HYDROL_F22_2; 1.
PE   1: Evidence at protein level;
KW   Antimicrobial; Bacteriolytic enzyme; Direct protein sequencing;
KW   Disulfide bond; Glycosidase; Hydrolase; Secreted.
FT   CHAIN           1..129
FT                   /note="Lysozyme C"
FT                   /id="PRO_0000208865"
FT   DOMAIN          1..129
FT                   /note="C-type lysozyme"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   ACT_SITE        35
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   ACT_SITE        52
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   DISULFID        6..127
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   DISULFID        30..115
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   DISULFID        64..80
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
FT   DISULFID        76..94
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00680"
SQ   SEQUENCE   129 AA;  14308 MW;  144DA7001948E638 CRC64;
     KVFGRCELAA AMKRHGLDNY RGYSLGNWVC AAKFESNFNS QATNRNTDGS TDYGVLQINS
     RWWCNDGRTP GSRNLCNIPC SALLSSDITA TVNCAKKIVS DGNGMNAWVA WRNRCKGTDV
     HAWIRGCRL
//