ID   PACA_BPP7               Reviewed;         397 AA.
AC   Q5XLR1;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   02-JUN-2021, entry version 28.
DE   RecName: Full=Terminase A protein;
DE   AltName: Full=DNA-packaging protein A;
DE   AltName: Full=PACase A protein;
GN   Name=pacA;
OS   Enterobacteria phage P7 (Bacteriophage P7).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Myoviridae; Punavirus.
OX   NCBI_TaxID=10682;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Sauer B.V., McDermott J.;
RT   "Survey of the pac-c1 region in P1-related phages.";
RL   Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Necessary for recognition and cleavage of the phage packaging
CC       site (pac), together with the pacB protein. Both are probably the two
CC       major subunits of the phage PACase (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Multimer of two distinct subunits. {ECO:0000250}.
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DR   EMBL; AY751747; AAV28853.1; -; Genomic_DNA.
DR   SMR; Q5XLR1; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0004518; F:nuclease activity; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   DNA-binding; Hydrolase; Nuclease.
FT   CHAIN           1..397
FT                   /note="Terminase A protein"
FT                   /id="PRO_0000165276"
FT   REGION          43..62
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          304..325
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          356..397
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        373..397
FT                   /note="Acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   397 AA;  45234 MW;  0AEDB9308E26DF0F CRC64;
     MTWDDHKKNF ARLARDGGYT IAQYAAEFNL NPNTARRYLR AFKEDTRTAD SRKPNKPVRK
     PLKSMIIDHS NDQHAGDHIA AEIAEKQRVN AVVSAAVENA KRQNKRINDR SDDHDVINRA
     HRTLRDRLER DTLDDDGERF EFEAGDYLID NVEARKAARA MLRRSGADVL ETTLLEKSLS
     HLLMLENARD TCIRLVQEMR DQQKDDDEGT PPEYRIASML NSCSAQISSL INTIYSIRNN
     YRKESREAEK HALSMGQAGI VKLAYERKRE NNWSVLEAAE FIEAHGGKVP PLMLEQIKAD
     LRAPKTNTDD EENQTASGAP SLEDLDKIAR ERAASRRADA ALWIEHRREE IADIVDTGGY
     GDVDAEGISN EAWLEQDLDE DEEEDEEVTR KLYGDDD