Livin Products

Description

Livin (BIRC7/KIAP) is a member of the family of inhibitor of apoptosis proteins (IAP) and contains a single copy of a baculovirus IAP repeat (BIR) as well as a RING-type zinc finger domain (reviewed in Ma et al 2006 and Crnkovic-Mertens et al 2006). Resistance towards apoptosis is a hallmark of cancer cells, and overexpression of IAPs can contribute to the development of cancer though inhibiting apoptosis (reviewed in Wright et al. 2005). IAP proteins inhibit apoptosis by binding to and inhibiting caspases through their BIR domain(s). Some IAP members, like Liven, also have a RING-type finger motif at their carboxyl-terminal which may enhance anti-apoptotic activity. Many RING finger-containing IAPs possess E3 ubiquitin ligase activity, and it has been shown that Liven acts an E3 ubiquitin ligase for targeting the degradation of Smac/DIABLO. Smac/DIABLO functions by inhibiting IAP-caspase interactions, thereby promoting apoptosis. Thus degradation of Smac/DIABLO is thought to be a mechanism to enhance Livin anti-apoptotic activity, thereby promoting cell survival. Two splicing variants of Livin, alpha and beta, have been identified. The two isoforms are thought to have different anti-apoptotic properties; however, there are conflicting reports are to whether they actually differ in their biological activities. There is accumulating evidence that Liven plays a significant role in a spectrum of tumor types and it is thought that Liven may have potential as a diagnostic and prognostic tumor marker. Liven is expressed at low levels in adult tissues, and relatively higher levels in developmental tissues and in many cancer cells. Certain cancer patients develop autoantibodies against liven and in a number of cancers, Liven is detected only in the tumors but not, or to substantially lower levels, in the corresponding normal adjacent tissue. This antibody recognizes Livin, both isoform alpha and isoform beta. Human Livin isoform alpha is a 298 amino acid (aa) protein, GenBank no. NP_647478. Human Livin isoform beta is a 280 aa protien, GenBank no. NP_071444.1. The antibody will also recognize other isoforms of Livin that contain the peptide immunogen sequence.

Bioinformatics

Entrez	79444 Human
Uniprot	AAH14475 Human NM_139317 Human NP_071444 Human NP_647478 Human NP_647478.1 Human Q96CA5 Human Q96CA5-2 Human
Product By Gene ID	79444
Alternate Names	baculoviral IAP repeat containing 7 baculoviral IAP repeat-containing 7 KIAPRING finger protein 50 Kidney inhibitor of apoptosis protein livin inhibitor-of-apoptosis Livin Melanoma inhibitor of apoptosis protein MLIAPlivin inhibitor of apoptosis ML-IAPmliap RNF50LIVINbaculoviral IAP repeat-containing protein 7

Research Areas for Livin

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Apoptosis
Zinc Finger

Related Livin Blog Posts

Check out the latest blog posts on Livin.

Livin: On a Prayer Livin is a member of the inhibitor of apoptosis proteins (IAP) family that regulates programmed cell death. The Livin protein contains a single baculovirus IAP repeat (BIR) essential for function, along with a COOH-terminal RING-type zinc finger domai...    Read more.

Survivin is thrivin' The survivin anti-apoptotic protein is the smallest member of a large family of proteins such as X-linked IAP, c-IAP1 and 2, IAP-like protein-2, melanoma IAP, Livin, and NAIP. Survivin regulates basic physiological events such as the cell cycle, tumor...    Read more.

The Ins and Outs of Survivin By Rachel M.A. Linger, Ph.D.What is survivin?Survivin is a small (16.5 kDa) protein normally found in human fetal tissue. In contrast, survivin is typically undetectable in most normal adult tissues. Expression of ...    Read more.

Survivin - an inhibitor of apoptosis protein Survivin is an anti-apoptotic protein which is the smallest protein within a large family of proteins including X-linked IAP, c-IAP1 and 2, IAP-like protein-2, melanoma IAP, NAIP, and Livin. Survivin is responsible for a wide range of basic cellula...    Read more.

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