KSHV orfK6 |
KSHV orfK9 |
IGLHDPSHGTLPNGS |
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This protein is encoded by the open reading frame K7 of the Kaposi sarcoma-associated virus KSHV. K7 protein contains a mitochondrial-targeting sequence, an N-terminal region of a BIR domain, and a putative BH2 domain. K7 is a glycoprotein structurally related to a splice variant of human survivin, which protects cells from cell death by apoptosis. K7 binds to BCL2 but not to BAX. K7 also binds to active caspase-3 and inhibits its activity. The authors suggest that K7 be called vIAP
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