Regulated Operon: bioWAFDBI-ytbQ

Genes
Genes Synonyms Direction Genome position Function COG ID Genus clusters
bioW
- 3093728..3094507 6-carboxyhexanoate-CoA ligase
 
bioA
- 3092392..3093738 adenosylmethionine-8-amino-7-oxononanoate aminotransferase COG0161 x0337-BAC  
bioF
- 3091233..3092402 8-amino-7-oxononanoate synthase COG0156 bioF-BAC  
bioD
- 3090541..3091236 dethiobiotin synthetase COG0132  
bioB
- 3089531..3090538 biotin synthetase COG0502  
bioI
- 3088275..3089462 cytochrome P450 enzyme COG2124  
ytbQ
- 3087437..3088042
COG0451  

Operon evidence: Northern blotting (7.0 kb transcript found by Bower et al.; 7.2 kb transcript found by Perkins et al.).
Reference: Bower S, et al. (1996), Perkins JB, et al. (1996), Genbank AF008220
Comments: The readthrough terminator downstream of bioB leads to a 5.0 kb (as measured by Bower et al.) / 5.1 kb (as measured by Perkins et al.) bioWAFDB transcript. Readthrough termination was confirmed by Perkins et al. by deleting the stem-loop structure downstream of bioB. Perkins et al. also found a monocistronic bioW transcript of 0.8 kb, which may be an RNA degradation product.


Promoters

Binding
factor
Regulation Location Absolute position Binding seq.(cis-element) Experimental evidence
BirA Negative ND 3094554..3094593 CTAATTGTTAACCTTTGAATATAATTGGTTAACAATTTAG Bower S, et al. (1996): DB
Perkins JB, et al. (1996): DB NB

Terminator

Terminator sequence Absolute position Position from stop codon Free energy
[kcal/mol]
Downstream of
GAACGGAGCATAATCATTTTCTAAGATTATGCTCTTTTTCTTTTGTTAT
     >>>>>>>>>>         <<<<<<<<<<
3087416..3087444
-7..21
-14.9
ytbQ
AAAAGCAATCGGTATGATGTCGATTGTTTTTATTTTTGAAC
     >>>>>>>>     <<<<<<<<
3089495..3089515
16..36
-7.1
bioB

Overview



Upper Region






Copyright: Human Genome Center, Inst. Med. Sci., Univ. Tokyo; 1999-2006
Contact: Kenta Nakai