FGSC #251

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Reporting Genes: met-3;ylo-1

Species: crassa

Allele: 36104;Y30539y

Alternate Strain Number: 9048

Depositor: DDP

Linkage Group: VR;VIL

Mating Type: a

Species Number: 10

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
met-3	VR. Right of trp-5 (4%) and pab-1 (1%). Left of pk(1%) (6, 296, 362, 1036). (125) Uses methionine, homocysteine, or cystathionine (469). Lacks cystathionine-gamma-synthase (547) (Fig. 17). This enzyme is also lacking in the mutant met-7(547). The enzyme is activated by methyl tetrahydrofolate and feedback inhibited by S-adenosylmethionine (547, 965).	VR	B
ylo-1	VIL. Between cys-1 (8%) and ad-1 (6%). Probably right of Bml (2%) (1012, PB). (381). Yellow carotenoids (381). Affects synthesis of neurosporaxanthin (4'-apo-beta'-caroten-4'-oic acid); citations in reference 398. Lesion probably involves the conversion of lycopene to 3,4-dehydrolycopene or the conversion of either torulene or gamma-carotene to neurosporaxanthin (398 and references therein) (Fig. 9). Resembles the orange wild type in young cultures, but color differences become clear with age. Expressed in both conidia and mycelia. Undefined modifiers affect intensity. Fails to complement with many of the al-1 and al-2 albino strains (R.E. Subden, personal communication).	VIL	B