| Strongest similarity (2e-44) to Vibrio
cholerae (gi|3095162)initiation factor
IF3. Also similar (2e-43) to
Escherichia coli (sp|P02999|)and to
several spp. translation initiation
factor IF-3.The E.coli comments on this
protein is: [FUNCTION] IF-3 BINDS TO
THE 30S RIBOSOMAL SUBUNIT AND SHIFTS
THE EQUILIBRUM BETWEEN 70S RIBOSOMES
AND THEIR 50S AND 30S SUBUNITS IN FAVOR
OF THE FREE SUBUNITS, THUS ENHANCING
THE AVAILABILITY OF 30S SUBUNITS ON
WHICH PROTEIN SYNTHESIS INITIATION
BEGINS. [FUNCTION] IF-3 IS ALSO A
TRANSLATIONAL REPRESSOR PROTEI, IT
CONTROLS THE TRANSLATION OF ITS OWN
GENE BY BINDING TO ITS MRNA. [SUBUNIT]
MONOMER. EXISTS IN 2 MAIN FORMS, IF-3L
AND IF-3S. THERE IS AT LEAST ONE MINOR
FORM THAT DIFFERS FROM IF-3L ONLU IN
THE ABSENCE OF THE FIRST RESIDUE.
[SIMILARITY] BELONGS TO THE IF-3
FAMILY'. Similar to several spp.
translation initiation factor IF-3.
Strong similarity (2e-44) to Vibrio
cholerae (gi|3095162) initiation factor
IF3. Aso similar (2e-43) to Escherichia
coli (sp|P02999|) TRANSLATION
INITIATION FACTOR IF3. The E.coli
comments are: '[FUNCTION] IF-3 BINDS TO
THE 30S RIBOSOMAL SUBUNIT AND SHIFTS
THE EQUILIBRUM BETWEEN 70S RIBOSOMES
AND THEIR 50S AND 30S SUBUNITS IN FAVOR
OF THE FREE SUBUNITS, THUS ENHANCING
THE AVAILABILITY OF 30S SUBUNITS ON
WHICH PROTEIN SYNTHESIS INITIATION
BEGINS. [FUNCTION] IF-3 IS ALSO A
TRANSLATIONAL REPRESSOR PROTEIN, IT
CONTROLS THE TRANSLATION OF ITS OWN
GENE BY BINDING TO ITS MRNA. [SUBUNIT]
MONOMER. EXISTS IN 2 MAIN FORMS, IF-3L
AND IF-3S. THERE IS AT LEAST ONE MINOR
FORM THAT DIFFERS FROM IF-3L ONLY IN
THE ABSENCE OF THE FIRST RESIDUE.
[SIMILARITY] BELONGS TO THE IF-3
FAMILY.'
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