CORRECTED - BRIEF-Moody's cuts Standard Bank Plc issuer rating to Baa3

(Corrects first bullet point to show it was the holding company's rating that was changed.

Adds 'Standard Bank' to fourth bullet point for clarity)

LONDON, Nov 6 (Reuters) - Standard Bank Plc (SBKJ.J): * Moody's downgrades the holding company's issuer rating of the unit of South Africa's Standard Bank Group by two notches to Baa3 * Moody's downgrades deposit rating to Baa2 from A3, subordinated rating to Baa3 from Baa1 * Moody's downgrades Standard Bank junior subordinated rating to Ba1 from Baa1, financial strength rating to D from C- * Moody's says downgrade reflects exposure to BRIC countries, although bank not suffered major losses on them so far (London Corporate Finance; +44 207 542 9202)