FGSC #4199

Mutant Type

Genus: N

reporting_genes: uvs-6;nic-3

species: Neurospora crassa

allele: ALS35;Y31881

stock: M1574 a

glasgow:

mutagen:

Depositor: EK

Link Group: IR;VIIL

MT: a

Species No: 10

gene_back:

oppmt: 0

trans:

ref1: Kafer 1982 Neurospora Newsl. 29:41-44, https://doi.org/10.4148/1941-4765.1645

ref2:

site:

country:

ksudc_link: https://digital.lib.k-state.edu/item/neurospora-crassa/fgsc-4199

ksudc_link_html: https://digital.lib.k-state.edu/item/neurospora-crassa/fgsc-4199 ↗

Genes

Locus	Cultural Requirements	Link Group	Type
nic-3	VIIL. Right of spco-4 (1%) and do (3%). Left of thi-3 (9 to 27%) and csp-2 (16 to 22%) (539, 812, 816, PB). (M.K. Allen, cited in references 718 and 789) Uses nicotinic acid, nicotinamide, 3-hydroxyanthranilic acid, 3-hydroxykynurenine, or high concentrations of quinolinic acid (96, 1168). Accumulates alpha-N-acetylkynurenine; blocked in conversion of kynurenine to 3-hydroxykynurenine (1168) (Fig. 18). Pyridine nucleotide levels (111). Pathway from tryptophan to nicotinic mononucleotide, showing sites of gene action (96, 100, 368, 1168). The enzymatic reactions between 3-hydroxyanthranilate and nicotinic mononucleotide have not been demonstrated directly in Neurospora.	VIIL	B
uvs-6	IR. Between thi-1 (3 to 8%) and ad-9 (4%) (538; E. Kafer, personal communication; D. Newmeyer, unpublished data). Very close to met-6 (< 1%) (D. Newmeyer, unpublished data). (937). Increases sensitivity to UV (273, 937), ionizing radiation (537, 937, 940), nitrosoguanidine (509, 537), histidine (755), methyl methane sulfonate (536), ICR-170 and 4-nitroquinoline 1-oxide (509), and possibly mitomycin C (537). Normal UV-induced mutation (273). For mutation induction by other agents, see references 509 and 940. Increased spontaneous mutation not evident in the ad-3 system (275), but is found for recessive lethals in a heterokaryon test system (E. Kafer, personal communication). Normal dimer excision (1164). Defective in extracellular nuclease, giving reduced halos around colonies on DNA agar (538). Increased duplication instability due to mitotic recombination, deletion, or both (759). Homozygous barren (759), with a block at crozier differentiation (860). Reduced conidial viability (537). Switches to stop-start growth after initial normal growth (D. Newmeyer, unpublished data). Not completely recessive in heterokaryotic conidia (979). Increased stability of CPS (Pyr) activity in vitro suggests that protease activity may be reduced in the mutant uvs-6 (882); see also reference 360. Double mutant uvs-3;uvs-6 is inviable (506).	IR	B