ID   LY_BPSF6                Reviewed;         316 AA.
AC   P21270;
DT   01-MAY-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1991, sequence version 1.
DT   07-OCT-2020, entry version 69.
DE   RecName: Full=Putative lysozyme;
DE            EC=3.2.1.17;
OS   Bacillus phage SF6 (Bacteriophage SF6).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae.
OX   NCBI_TaxID=10773;
OH   NCBI_TaxID=1423; Bacillus subtilis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Verma M.;
RT   "Molecular cloning and sequencing of lysozyme gene of bacteriophage SF6 of
RT   Bacillus subtilis.";
RL   Curr. Microbiol. 13:299-301(1986).
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   -!- SIMILARITY: Belongs to the reoviridae sigma-1 protein family.
CC       {ECO:0000305}.
CC   -!- CAUTION: There is an almost complete sequence identity between the two-
CC       thirds of reovirus type 3 sigma-1 protein and the reported sequence of
CC       phage SF6 lysozyme. In the absence of further study on SF6, it is
CC       impossible to rule out the possibility that the displayed sequence
CC       might come from a contaminant. This might therefore not represent the
CC       real SF6 lysozyme sequence. {ECO:0000305}.
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DR   EMBL; M35825; AAA32595.1; -; Genomic_DNA.
DR   PIR; S25234; S25234.
DR   SMR; P21270; -.
DR   GO; GO:0003796; F:lysozyme activity; IEA:UniProtKB-EC.
DR   GO; GO:0007155; P:cell adhesion; IEA:InterPro.
DR   GO; GO:0019835; P:cytolysis; IEA:UniProtKB-KW.
DR   GO; GO:0042742; P:defense response to bacterium; IEA:UniProtKB-KW.
DR   GO; GO:0008152; P:metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0019062; P:virion attachment to host cell; IEA:InterPro.
DR   InterPro; IPR009013; Attachment_protein_shaft_sf.
DR   InterPro; IPR002592; Vir_attach_sigma1_reovir.
DR   Pfam; PF01664; Reo_sigma1; 1.
DR   SUPFAM; SSF51225; SSF51225; 1.
PE   3: Inferred from homology;
KW   Antimicrobial; Bacteriolytic enzyme; Glycosidase; Hydrolase.
FT   CHAIN           1..316
FT                   /note="Putative lysozyme"
FT                   /id="PRO_0000106626"
SQ   SEQUENCE   316 AA;  34124 MW;  10DF518D4C7DB6A9 CRC64;
     MDPRLREEVV RLIIALTSDN GASLSKRLQS RVSALEKTSQ IHSDTILRIT QGLDDANKRI
     IALEQSRDDL VASVSDAQLA ISRLESSIGA LQTVVNGLDS SVTQLGARVG QLETGLADVR
     VDHDNLVARV DTAERNIGSL TTELSTLTLR VTSIQADFES RISTLERTAV TSAGAPLSIR
     NNRITMGLND GLTLSGNNLA IRLPGNTGLN IQNGGLQFRF NTDQFQIVNN NLTLKTTVFD
     SINSRIGATE QSYVASAVTP LRLNSSTKVL DMLIDMSTLE INSSGQLTVR STSPNLRYPI
     ADVSGGIGMS PNYRFR