FGSC #869

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Reporting Genes: nt

Species: crassa

Allele: C86

Alternate Strain Number: C86a

Mutagen: UV

Depositor: ELT

Linkage Group: VIIR

Mating Type: a

Species Number: 10

Genetic Background: M

Opposite Mating Type: 4349

ref1: Mitchell, Houlahan 1948 PNAS 34:435-442 L33, https://doi.org/10.1073/pnas.34.9.435

ref2: Nyc et al 1949 Arch Biochem 23:161-63

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
nt	VIIR. Between arg-10 (2 to 12%) and sk (7 to 18%) (789). (874) Uses nicotinic acid. May respond also to tryptophan, phenylalanine, tyrosine, quinic acid, and precursors of nicotinic acid or tryptophan, or both, depending on genetic background (448, 760). Best supplemented with nicotinamide and scored as a nic mutant. Probably deficient in tryptophan pyrrolase (tryptophan 2,3-dioxygenase) (Fig. 18), but direct evidence is lacking because tryptophan oxygenase cannot be assayed in Neurospora (368). Kynurenine formamidase levels are normal (368). Pyridine nucleotide levels (111).	VIIR	B