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Research Strains

NARSA Strain Id Alias Strain Species Description  
NRS77  NCTC 8325; RN1  Staphylococcus aureus  Standard lab strain; propagating strain for typing phage 47; virulence factor staphylokinase. 
NRS133  NCTC8325 (RN0025)  Staphylococcus aureus  RN0001, UV cured of Φ11 and Φ12. all NCTC 8325 derivatives are agr group I.  
NRS134  NCTC8325 (RN0027)  Staphylococcus aureus  RN0025, lysogenized with 80α 
NRS135  NCTC8325 (RN0450)  Staphylococcus aureus  RN0001 UV cured of Φ11, Φ12, and Φ13; partially agr-defective 
NRS136  NCTC8325 (RN0451)  Staphylococcus aureus  RN0450 re-lysogenized with Φ11 
NRS137  NCTC8325 (RN0453)  Staphylococcus aureus  standard donor of Tn551 from pI258 mutant thermosensitive for replication 
NRS138  RN0833  Staphylococcus warneri  Naturally occurring producer of the agrD autoinducing peptide, YINCTNFF, which is an agr inhibitor for all four agr groups in S. aureus. 
NRS139  NCTC8325 (RN0981)  Staphylococcus aureus  Heavily mutagenized derivative of RN450 with multiple defects. 
NRS140  NCTC8325 (RN1389)  Staphylococcus aureus  Tn554 is a site-specific, high frequency transposon encoding erythromycin and spectinomycin resistances. 
NRS141  NCTC8325 (RN3214)  Staphylococcus aureus  pUB110 is a naturally-occuring Skb rolling circle plasmid encoding resistances to aminoglycosides (neomycin & kanamycin) and to bleomycin. It belongs to the pc194 family. It replicates more efficiently in Bacillus subtilis than in S. aureus. 
NRS142  NCTC8325 (RN3763)  Staphylococcus aureus  pSA0341 has a repC mutation causing thermosensitive plasmid replication, isolated by S.Iordanesco. 
NRS143  NCTC8325 (RN3984)  Staphylococcus aureus  SaPI2 is a phase-related pathogenicity island ~10kb; transduction at high frequency by phage 80. 
NRS144  NCTC8325 (RN4220)  Staphylococcus aureus  RN4220 was selected for transformability with DNA from E. coli. It has a partial agr defect. 
NRS145  RN4282  Staphylococcus aureus  SaPI1 is a mobile 15-kb pathogenicity island transduced at high frequency by phage 80α. RN4282 is the strain from which tst was first cloned. 
NRS146  NCTC8325 (RN5843)  Staphylococcus aureus  pRN6441 is a derivative of pE194, a 3.8 kb rolling circle plasmid, with a mutation in repF causing thermosesitive replication, plus the insertion of the puC19 multiple cloning site in its single PstI site. 
NRS147  NCTC8325 (RN6390B)  Staphylococcus aureus  RN6390 is the strain from which the agr locus was first cloned. It is the agr group I prototype. RN6390 frequently gives rise to agr-negative mutants. RN6390B is an agr-positive re-isolate from an RN6390 stock culture that had become mostly agr-negative. 
NRS148  RN6432 ;"Smith diffuse"  Staphylococcus aureus  Heavily encapsulated; undergoes phase variation to generate capsule-variants that form compact colonies in serum 0.3% agar and is known as "Smith compact". 
NRS149  502A (RN6607)  Staphylococcus aureus  standard agr group II prototype; formerly used for bioprotection against 80/81 epidemic phage type. 
NRS150  NCTC8325 (RN6709)  Staphylococcus aureus  pRN5543 is a derivative of pC194 with the pUC19 multiple cloning site at the HindIII site, one HindIII site eliminated. 
NRS151  NCTC8325 (RN6911)  Staphylococcus aureus  agr locus in 8325-4 replaced by tetM; overproduces protein A. 
NRS152  WGB4316 (RN7044)  Staphylococcus aureus  pWBG32 is a small rolling circle of the pSN2 family encoding an efflux pump for quarternary amines. 
NRS153  RN8540  Staphylococcus aureus  agr group IV prototype 
NRS154  RN4850 (RN9121)  Staphylococcus aureus  agr-null derivative of agr group IV prototype 
NRS155  502A (RN9120)  Staphylococcus aureus  agr-null derivative of 502A, agr-group II prototype. 
NRS281  COLVA  Staphylococcus aureus  Vancomycin-resistant transconjugant 
NRS407  HIP12467  Enterococcus faecalis  co-isolate of Michigan VRSA (VRS1) 
NRS408  HIP11713  Staphylococcus aureus  Probable recipient of Tn1546 from Enterococcus faecalis to produce VRSA (VRS1)