ID   TRM2_HHV6U              Reviewed;         106 AA.
AC   Q69561; Q69058;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   23-FEB-2022, entry version 71.
DE   RecName: Full=Tripartite terminase subunit 2 {ECO:0000255|HAMAP-Rule:MF_04015};
GN   Name=TRM2 {ECO:0000255|HAMAP-Rule:MF_04015}; OrderedLocusNames=U35, XILF1;
OS   Human herpesvirus 6A (strain Uganda-1102) (HHV-6 variant A) (Human B
OS   lymphotropic virus).
OC   Viruses; Duplodnaviria; Heunggongvirae; Peploviricota; Herviviricetes;
OC   Herpesvirales; Herpesviridae; Betaherpesvirinae; Roseolovirus.
OX   NCBI_TaxID=10370;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8289364; DOI=10.1128/jvi.68.2.597-610.1994;
RA   Nicholas J., Martin M.E.D.;
RT   "Nucleotide sequence analysis of a 38.5-kilobase-pair region of the genome
RT   of human herpesvirus 6 encoding human cytomegalovirus immediate-early gene
RT   homologs and transactivating functions.";
RL   J. Virol. 68:597-610(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=7747482; DOI=10.1006/viro.1995.1228;
RA   Gompels U.A., Nicholas J., Lawrence G.L., Jones M., Thomson B.J.,
RA   Martin M.E.D., Efstathiou S., Craxton M.A., Macaulay H.A.;
RT   "The DNA sequence of human herpesvirus-6: structure, coding content, and
RT   genome evolution.";
RL   Virology 209:29-51(1995).
CC   -!- FUNCTION: Component of the molecular motor that translocates viral
CC       genomic DNA in empty capsid during DNA packaging. Forms a tripartite
CC       terminase complex together with TRM1 and TRM3 in the host cytoplasm.
CC       Once the complex reaches the host nucleus, it interacts with the capsid
CC       portal vertex. This portal forms a ring in which genomic DNA is
CC       translocated into the capsid. {ECO:0000255|HAMAP-Rule:MF_04015}.
CC   -!- SUBUNIT: Associates with TRM1 and TRM3 to form the tripartite terminase
CC       complex. {ECO:0000255|HAMAP-Rule:MF_04015}.
CC   -!- SUBCELLULAR LOCATION: Host nucleus {ECO:0000255|HAMAP-Rule:MF_04015}.
CC       Note=Found associated with the external surface of the viral capsid
CC       during assembly and DNA packaging, but seems absent in extracellular
CC       mature virions. {ECO:0000255|HAMAP-Rule:MF_04015}.
CC   -!- SIMILARITY: Belongs to the herpesviridae TRM2 protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_04015}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAA16742.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; L25528; AAA16742.1; ALT_INIT; Genomic_DNA.
DR   EMBL; X83413; CAA58415.1; -; Genomic_DNA.
DR   PIR; T09329; T09329.
DR   RefSeq; NP_042928.1; NC_001664.2.
DR   SMR; Q69561; -.
DR   PRIDE; Q69561; -.
DR   DNASU; 1487913; -.
DR   GeneID; 1487913; -.
DR   KEGG; vg:1487913; -.
DR   Proteomes; UP000009295; Genome.
DR   GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0019073; P:viral DNA genome packaging; IEA:UniProtKB-UniRule.
DR   GO; GO:0019076; P:viral release from host cell; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_04015; HSV_TRM2; 1.
DR   InterPro; IPR005208; Herpes_TT2.
DR   Pfam; PF03581; Herpes_UL33; 1.
PE   3: Inferred from homology;
KW   Host nucleus; Reference proteome; Viral genome packaging;
KW   Viral release from host cell.
FT   CHAIN           1..106
FT                   /note="Tripartite terminase subunit 2"
FT                   /id="PRO_0000342586"
SQ   SEQUENCE   106 AA;  12440 MW;  CC7712372EBE783F CRC64;
     MMDSSPEKTN LELLYERVCE QGREFEVVFY PMLPRLYEMM LPSLEARLNF LSVGYRHVAF
     ARYVHGDVDC VHREVMAQKM VLLTSILSKL LNVNGILEHQ EYLNTE