Characterization of the genome of molluscum contagiosum virus type 1 between the genome coordinates 0.045 and 0.075 by DNA nucleotide sequence analysis of a 5.6-kb HindIII/MluI DNA fragment.
The complete DNA nucleotide sequence of a HindIII/MluI genomic DNA fragment (0.045-0.075 viral map units) from molluscum contagiosum virus type 1 (MCV-1) was determined. The HindIII/MluI DNA fragment comprises 5,646 bp with a base composition of 64.4% G + C and 35.6% A + T. The DNA sequence contains many perfect direct repeats. A cluster of three repetitive DNA elements R1, R2 and R3, with a complex structural arrangement was detected between nucleotide positions 1802 and 2107. The unit length (box) of the repetitive DNA sequences was found to be 6 bp (15 boxes) and 9 bp (24 boxes) for R1 and R2, respectively. The repetitive DNA element R3 is organized in fifteen boxes (15 bp) in which a unit length of R1 is combined with a unit length of R2. The arrangement of the repetition R3 within the DNA sequences of this particular region of the MCV-1 genome was found to be (5 x R3) + (2 x R2) + (1 x R3) + (6 x R2) + (1 x R3) + (1 x R2) + (8 x R3). Twenty-three open reading frames (ORFs) of 60-1,175 amino acid (AA) residues were detected. The largest ORF (number 17) comprises 1,175 AA with a predicted molecular weight of 126 kD. This ORF harbors a promoter signal which is located 21 nucleotides upstream from the start codon and is very similar to the early promoter signals known for vaccinia virus. This putative protein contains glutamine-enriched regions between AA residues 427 and 682 which show homologies to the corresponding glutamine-enriched regions of a variety of cellular genes like human transcriptional initiation factor (TFIID: TATA box factor).
Hadasch
R P
RP
Institut für Medizinische Virologie, Universität Heidelberg, FRG.
Bugert
J J
JJ
Janssen
W
W
Darai
G
G
D000595:Amino Acid Sequence; D001426:Bacterial Proteins; D001483:Base Sequence; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000235:genetics* / Q000378:metabolism; D015247:Deoxyribonuclease HindIII / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific / Q000378:metabolism; D016679:Genome, Viral; D015698:Genomic Library; D008969:Molecular Sequence Data; D008977:Molluscum contagiosum virus / Q000235:genetics*; D016366:Open Reading Frames; D012091:Repetitive Sequences, Nucleic Acid; D017421:Sequence Analysis; D017386:Sequence Homology, Amino Acid; D035362:Transcription Factor TFIID; D014157:Transcription Factors / Q000235:genetics
D001426:Bacterial Proteins; D004279:DNA, Viral; D035362:Transcription Factor TFIID; D014157:Transcription Factors; D015247:Deoxyribonuclease HindIII; C035041:endodeoxyribonuclease MluI; D015252:Deoxyribonucleases, Type II Site-Specific