GenePage for the casB gene of Escherichia coli K-12

Primary Gene Name: casB
EcoGene Accession Number: EG13118
K-12 Gene Accession Number: ECK2754
MG1655 Gene Identifier: b2759
Gene Name Mnemonic: CRISPR-associated
Alternate Gene Symbols: cse2; ygcK
Description: CRISPR RNA (crRNA) containing Cascade antiviral complex
  # bp Upstream # bp Downstream
MW: 18701.51 ---------160 aa Pre-Run BlastP UniProt
Pre-Run BlastP NR+Env
Left End: 2882155
Left Intergenic Region

Name: casC_casB

Length: 12 bp gap

Orientation: Codirectional-

Left_end: 2882143

Right_end: 2882154

Centisome: 62.09

Genomic Address
Counterclockwise
Minute or Centisome (%) = 62.09
Right End: 2882637
Right Intergenic Region

Name: casB_casA

Length: 8 bp overlap

Orientation: Codirectional-

Left_end: 2882630

Right_end: 2882637

Centisome: 62.10

The Cascade antiviral complex is comprised of CasABCDE and short CRISPR RNAs (crRNAs) and requires the predicted helicase YgcB(Cas3) for activity (Brouns, 2008).

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BamHI EcoRI HindIII