FGSC #689

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Reporting Genes: met-2;su(met-2)

Species: crassa

Allele: no#;H98

Alternate Strain Number: H5

Mutagen: S

Depositor: BSS

Linkage Group: --;IVR

Mating Type: a

Species Number: 10

Genetic Background: M

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
met-2	IVR. Between trp-4 (6%) and pan-1 (4%) (719). Linked to ilv-3(0/129) (354, 579). Uses methionine or homocysteine; accumulates cystathionine (469). Lacks cystathionase II (353) (Fig. 17). Fine-structure map (720, 724). Complementation map (719). Used in major studies of intralocus recombination and its polarity (720, 724).	IVR	B
su(met-2)	Unmapped. Not tested for allelism with su(met-7)-1 or su(met-7)-2.Isolated as a suppressor of met-2 allele H98 (B.S. Strauss and S. Tokuno, via FGSC). Suppresses leaky mutants blocked between cysteine and homocysteine. It is probably the suppressor used by Wiebers and Garner (1136) to show that the suppressed strain differs from wild type in being able to incorporate sulfur from S-methyl-cysteine into cysteine regardless of the sulfate concentration. The suppressor does not have significantly increased acetylhomoserine sulfhydrylase (547). The FGSC number is 690.		B