ID   CAP8_ADEB3              Reviewed;         139 AA.
AC   Q03556;
DT   01-OCT-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1993, sequence version 1.
DT   02-DEC-2020, entry version 50.
DE   RecName: Full=Pre-hexon-linking protein VIII;
DE   AltName: Full=Pre-protein VIII;
DE            Short=pVIII;
DE   Contains:
DE     RecName: Full=Hexon-linking protein-N;
DE     AltName: Full=12.1 kDa protein VIII;
DE     AltName: Full=Protein VIII-N;
DE   Contains:
DE     RecName: Full=Hexon-linking protein-C;
DE     AltName: Full=7.6 kDa protein VIII;
DE     AltName: Full=Protein VIII-C;
DE   Flags: Fragment;
GN   ORFNames=L4;
OS   Bovine adenovirus B serotype 3 (BAdV-3) (Mastadenovirus bos3).
OC   Viruses; Varidnaviria; Bamfordvirae; Preplasmiviricota; Tectiliviricetes;
OC   Rowavirales; Adenoviridae; Mastadenovirus; Bovine mastadenovirus B.
OX   NCBI_TaxID=10510;
OH   NCBI_TaxID=9913; Bos taurus (Bovine).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1469367; DOI=10.1099/0022-1317-73-12-3295;
RA   Mittal S.K., Prevec L., Babiuk L.A., Graham F.L.;
RT   "Sequence analysis of bovine adenovirus type 3 early region 3 and fibre
RT   protein genes.";
RL   J. Gen. Virol. 73:3295-3300(1992).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8277294; DOI=10.1099/0022-1317-74-12-2825;
RA   Mittal S.K., Prevec L., Babiuk L.A., Graham F.L.;
RT   "Sequence analysis of bovine adenovirus type 3 early region 3 and fibre
RT   protein genes.";
RL   J. Gen. Virol. 74:2825-2825(1993).
CC   -!- FUNCTION: [Hexon-linking protein-N]: Structural component of the virion
CC       that acts as a cement protein on the capsid interior and which glue the
CC       peripentonal hexons and group-of-nine hexons together.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- FUNCTION: [Hexon-linking protein-C]: Structural component of the virion
CC       that acts as a cement protein on the capsid interior and which glue the
CC       peripentonal hexons and group-of-nine hexons together.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- SUBUNIT: Interacts with the peripentonal hexons as well as the hexons
CC       in the facets. Part of a complex composed of the core-capsid bridging
CC       protein, the endosome lysis protein VI and the hexon-linking protein
CC       VIII; these interactions bridge the virus core to the capsid.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- SUBCELLULAR LOCATION: [Pre-hexon-linking protein VIII]: Host nucleus
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- SUBCELLULAR LOCATION: [Hexon-linking protein-N]: Virion
CC       {ECO:0000250|UniProtKB:P24936}. Note=Located on the inner side of the
CC       capsid shell. Present in 120 copies per virion.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- SUBCELLULAR LOCATION: [Hexon-linking protein-C]: Virion
CC       {ECO:0000250|UniProtKB:P24936}. Note=Located on the inner side of the
CC       capsid shell. Present in 120 copies per virion.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- INDUCTION: Expressed in the late phase of the viral replicative cycle.
CC   -!- PTM: Cleaved by the viral protease during virion maturation. May cause
CC       the middle segment to be shed from the capsid.
CC       {ECO:0000250|UniProtKB:P24936}.
CC   -!- MISCELLANEOUS: All late proteins expressed from the major late promoter
CC       are produced by alternative splicing and alternative polyadenylation of
CC       the same gene giving rise to non-overlapping ORFs. A leader sequence is
CC       present in the N-terminus of all these mRNAs and is recognized by the
CC       viral shutoff protein to provide expression although conventional
CC       translation via ribosome scanning from the cap has been shut off in the
CC       host cell (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the adenoviridae hexon-linking protein family.
CC       {ECO:0000305}.
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DR   EMBL; D16839; BAA04113.1; -; Genomic_DNA.
DR   PIR; PQ0499; PQ0499.
DR   GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0019028; C:viral capsid; IEA:UniProtKB-KW.
DR   GO; GO:0031423; F:hexon binding; IEA:InterPro.
DR   InterPro; IPR000646; Adeno_PVIII.
DR   Pfam; PF01310; Adeno_PVIII; 1.
PE   2: Evidence at transcript level;
KW   Capsid protein; Host nucleus; Late protein; Virion.
FT   CHAIN           <1..139
FT                   /note="Pre-hexon-linking protein VIII"
FT                   /id="PRO_0000421406"
FT   PEPTIDE         1..34
FT                   /note="Hexon-linking protein-N"
FT                   /evidence="ECO:0000255"
FT                   /id="PRO_0000421407"
FT   PROPEP          35..69
FT                   /evidence="ECO:0000255"
FT                   /id="PRO_0000421408"
FT   PEPTIDE         70..139
FT                   /note="Hexon-linking protein-C"
FT                   /id="PRO_0000221842"
FT   SITE            34..35
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000255"
FT   NON_TER         1
SQ   SEQUENCE   139 AA;  15050 MW;  0C0BF5BC2873C781 CRC64;
     LIKQPVVGTT HVEMPRNEVL EQHLTSHGAQ IAGGGAAGDY FKSPTSARTL IPLTASCLRP
     DGVFQLGGGS RSSFNPLQTD FAFHALPSRP RHGGIGSRQF VEEFVPAVYL NPYSGPPDSY
     PDQFIRHYNV YSNSVSGYS