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Photo 1
"T4 bacteriophage is a virus that consists
of an icosahedral (20 sided) head, contacting tail,
six short and six long fibers for attaching to its
E. coli victim, and a base plate that is the
nerve center for communicating between the fibers
and the tail." Photo 2
"A reconstructed computer image generated
by the SPIDER software (created by Joachim Frank and
colleagues at New York University) from 418 frozen
hydrated electron images that shows the protein structure
of the baseplate - tail tube assembly. The area labeled
(gp27-gp5*-gp5C)3 is the needlepoint that
penetrates the E. coli cell wall. The cutting
enzyme activity is located around the middle of the
needle. Figure a is a stereo view of the surface
of the assembly and Figure b is a cross section
of the assembly on an atomic scale. The 100 Angstrom
scale corresponds to one millionth of a cm." Return to Press Release NSF PR 02-07 - January 30, 2002
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