Title : Sec2 is a highly efficient exchange factor for the Rab protein Sec4.

Pub. Date : 2007 Feb 2

PMID : 17134721






2 Functional Relationships(s)
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Protein Name
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1 With a K(d) value for the Sec2:Sec4.GDP interaction of ca 70 microM and a maximal rate of GDP displacement of ca 15 s(-1), it is 100-1000-fold more effective than other proteins showing exchange activity towards Rabs (MSS4, DSS4, Vps9) and ca tenfold faster than Cdc25 as a Ras specific exchanger, although still 100-fold slower than the fastest systems studied so far, EF-Tu/Ef-Ts and Ran/RCC1. Guanosine Diphosphate Ras family guanine nucleotide exchange factor CDC25 Saccharomyces cerevisiae S288C
2 With a K(d) value for the Sec2:Sec4.GDP interaction of ca 70 microM and a maximal rate of GDP displacement of ca 15 s(-1), it is 100-1000-fold more effective than other proteins showing exchange activity towards Rabs (MSS4, DSS4, Vps9) and ca tenfold faster than Cdc25 as a Ras specific exchanger, although still 100-fold slower than the fastest systems studied so far, EF-Tu/Ef-Ts and Ran/RCC1. Guanosine Diphosphate Ras family guanine nucleotide exchange factor CDC25 Saccharomyces cerevisiae S288C