Table I.
HISN genes of Arabidopsis
| Arabidopsis Gene | Yeast Ortholog | Bacterial Ortholog | Arabidopsis Locus | Enzyme Activity | Functional Analysis | Allele 1 | Allele 2 | Allele 3 |
|---|---|---|---|---|---|---|---|---|
| HISN1A | HIS1 | HisG | At1g58080 | Phosphoribosyltransferase | Ohta et al. (2000) | SK-152420 | SK-3720 | |
| HISN1B | HIS1 | HisG | At1g09795 | Phosphoribosyltransferase | Ohta et al. (2000) | RATM13-4733-1G | SK-65159 | |
| HISN2 | HIS4 | HisIE | At1g31860 | Cyclohydrolase and pyrophosphohydrolase | Fujimori and Ohta (1998b) | SK-47603 | SK-143868 | SK-55503 |
| HISN3 | HIS6 | HisA | At2g36230 | BBMII isomerase | Fujimori et al. (1998) | SK-41416 | SK-97704 | Ds15-1767-1c |
| HISN4 | HIS7 | HisHF | At4g26900 | Amidotransferase/cyclase | Fujimori and Ohta (1998a) | SK-41907 | SK-2283 | SL-556-C04 |
| HISN5A | HIS3 | HisB | At3g22425 | Dehydratase | Tada et al. (1994) | SK-9063 | ||
| HISN5B | HIS3 | HisB | At4g14910 | Dehydratase | Not characterized | None confirmed | ||
| HISN6A | HIS5 | HisC | At5g10330 | Aminotransferase | El Malki et al. (1998)a | emb2196b | SL-750-F01 | hpa1d |
| HISN6B | HIS5 | HisC | At1g71920 | Aminotransferase | No ESTs confirmed | None identified | ||
| HISN7 | HIS2 | HisB | Unknown | Phosphatase | Unknown | Unknown | ||
| HISN8 | HIS4 | HisD | At5g63890 | Dehydrogenase | Nagai et al. (1991) | SL-1230-F01 |
a
Characterized from Nicotiana tabacum.
b
Refer to www.seedgenes.org; Tzafrir et al. (2004).
c
Characterized by Noutoshi et al. (2005).
d
Characterized by Mo et al. (2006).