111 х 78 nm
||Bacteriophages T2 and T4
||Ackermann HW, Krisch HM. A catalogue of T4-type bacteriophages. Arch Virol. 1997 142(12):2329-45 p.2330 3rd paragraphPubMed ID9672598
||Luftig RB. Further studies on the dimensions of viral and protein structures using the catalase crystal internal marker technique. J Ultrastruct Res. 1968 Apr23(1):178-81PubMed ID5670839
||Using catalase crystals for
calibration [Luftig 1968, Primary source], the dimensions of T4 heads and tails were determined to be
111?78 nm and 113?18 nm respectively (averages of 20 measurements of
uranyl acetate- or phosphotungstate-stained particles). These values are in good
agreement with the average of the phage dimensions reported in Table 1 in ref, Ackermann et al.
||T4-type phages are frequently associated with Escherichia coli and its close
relatives, the genera Klebsiella and Shigella they are less frequent in other
branches of the enterobacterial family such as Salmonella or Proteus.