Gene: methionine-1 IVR

methionine-1

locus: met-1

locus_name: methionine-1

organism_type: B

chromosome_number: IV

chromosome_side: R

link_group: IVR

cultural_requirements: IVR. Right of oxD (3%) and the T(S1229) left breakpoint. Left of col-4 (4%) (55, 158, 718, 768, 808). Uses methionine but not homocysteine (469) (Fig. 17). Lacks methylene tetrahydrofolate reductase and, thus, lacks the coenzyme needed for transmethylating homocysteine (124, 963, 964). A report that the mutant met-1 also lacks cystathionine-gamma-synthase (547) proved incorrect; the error resulted because methyl tetrahydrofolate is an essential activator of cystathionine-gamma-synthase (965). Methylene tetrahydrofolate reductase is feedback-inhibited by S-adenosylmethionine (124). Used in heteroallelic duplications from T(S1229) to assay mitotic recombination (56).

enzyme_id: 135

Enzyme: methylene tetrahydrofolate reductase

anid_name:

near_l: oxD (3%) and T(S1229) left breakpoint

near_r: col-4 (4%)

neu_name:

supplement: methionine

image_url:

Strains

FGSC # Reporting Genes Species
FGSC #317met-1Neurospora crassa
FGSC #408Has been replaced by strain number: 559Neurospora crassa
FGSC #559met-1Neurospora crassa
FGSC #560Has been replaced by strain number: 3049Neurospora crassa
FGSC #1277met-1Neurospora crassa
FGSC #1278met-1Neurospora crassa
FGSC #1325oxD met-1;inlNeurospora crassa
FGSC #3049met-1Neurospora crassa
FGSC #3050met-1Neurospora crassa
FGSC #3274met-1Neurospora crassa
FGSC #3276met-1Neurospora crassa
FGSC #3281met-1Neurospora crassa
FGSC #6469mus(FK133);met-1Neurospora crassa
FGSC #6470mus(FK133);met-1Neurospora crassa
FGSC A1090met,bi, green, fluG701 suppressor?Aspergillus nidulans

References

Authors Title Year
Barry, E. G.A complex chromosome rearrangement in N. crassa.1960
Barry, E. G.Interallelic somatic recombination in N. crassa.1978
Burton, E. G. , and R. L. Metzenberg.Regulation of methionine biosynthesis in N. crassa.1975
Catcheside, D. E. A.Gene order in linkage group V of N. crassa.1974
Horowitz, N. H.Methionine synthesis in Neurospora. The isolation of cystathionine.1947
Kerr, D. S. , and M. Flavin.The regulation of methionine synthesis and the nature of cystathionine-synthase in Neurospora.1970
Murray, N. E.The distribution of methionine loci in Neurospora crassa.1960
Ohnishi, E. , H. Macleod, and N. H. Horowitz.Mutants of Neurospora deficient in D-amino acid oxidase.1962
Perkins, D. D. , and E. G. Barry.The cytogenetics of Neurospora.1977
Selhub, J.Defects of the four types of Neurospora crassa mutants that require methionine and are unable to utilize homocysteine.1970
Selhub, J. , E. Burton, and W. Sakami.Identification of three enzymes specifically involved in the de novo methionine methylbiosynthesis of N. crassa.1969
Selhub, J. , M. A. Savin, W. Sakami, and M. Flavin.Synchronization of converging metabolic pathways:activation of thecystathionine- -synthase of Neurospora crassa by methyltetrahydrofolate.1971

Neurospora Crassa Wikipedia