Summary: Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins, composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively), have a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. Several isoforms of each chain have been described. Different alpha, beta and gamma chain isomers combine to give rise to different heterotrimeric laminin isoforms which are designated by Arabic numerals in the order of their discovery, i.e. alpha1beta1gamma1 heterotrimer is laminin 1. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, presumably reflecting diverse functions in vivo. This gene encodes the gamma chain isoform laminin, gamma 2. The gamma 2 chain, formerly thought to be a truncated version of beta chain (B2t), is highly homologous to the gamma 1 chain; however, it lacks domain VI, and domains V, IV and III are shorter. It is expressed in several fetal tissues but differently from gamma 1, and is specifically localized to epithelial cells in skin, lung and kidney. The gamma 2 chain together with alpha 3 and beta 3 chains constitute laminin 5 (earlier known as kalinin), which is an integral part of the anchoring filaments that connect epithelial cells to the underlying basement membrane. The epithelium-specific expression of the gamma 2 chain implied its role as an epithelium attachment molecule, and mutations in this gene have been associated with junctional epidermolysis bullosa, a skin disease characterized by blisters due to d
shRNA Design:
These shRNA constructs were designed against multiple splice variants at this gene locus. To be certain that your variant of interest is targeted, align it with our published shRNA design sequences. If these do not align, please utilize our custom shRNA service.
Performance Guranteed:
OriGene guarantees that the sequences in the shRNA expression cassettes are verified to correspond to the target gene with 100% identity. One of the four constructs at minimum are guaranteed to produce 70% or more gene expression knock-down provided a minimum transfection efficiency of 80% is achieved. Western Blot data is recommended over qPCR to evaluate the silencing effect of the shRNA constructs 72 hrs post transfection. To properly assess knockdown, the gene expression level from the included scramble control vector must be used in comparison with the target-specific shRNA transfected samples.
For non-conforming shRNA, requests for replacement product must be made within ninety (90) days from the date of delivery of the shRNA kit. To arrange for a free replacement with newly designed constructs, please contact Technical Services at techsupport@origene.com. Please provide your data indicating the transfection efficiency and measurement of gene expression knockdown compared to the scrambled shRNA control (Western Blot data preferred).
* Delivery time in business days.Occasional delay may occur due to complexity of the constructs.
shRNA Citations:
Deacetylation of p53 induces autophagy by suppressing Bmf expression, Amelia U. Contreras, Yohannes Mebratu, Monica Delgado, Gilbert Montano, Chien-an A. Hu, Stefan W. Ryter, Augustine M.K. Choi, Yuting Lin, Jialing Xiang, Hitendra Chand, and Yohannes Tesfaigzi,
J. Cell Biol., Apr 2013; 201: 427 - 437.
[p53] Premetastatic soil and prevention of breast cancer brain metastasis, Yan Liu, Akemi Kosaka, Maki Ikeura, Gary Kohanbash, Wendy Fellows-Mayle, Linda A. Snyder, and Hideho Okada,
Neuro Oncology, Apr 2013; 10.1093/neuonc/not031.
[COX2] Altered localization, abnormal modification and loss of function of Sigma receptor-1 in amyotrophic lateral sclerosis, J. Prause, A. Goswami, I. Katona, A. Roos, M. Schnizler, E. Bushuven, A. Dreier, S. Buchkremer, S. Johann, C. Beyer, M. Deschauer, D. Troost, and J. Weis,
Hum. Mol. Genet., Apr 2013; 22: 1581 - 1600.
[SIGMAR1] Histone Deacetylase 2 Cell Autonomously Suppresses Excitatory and Enhances Inhibitory Synaptic Function in CA1 Pyramidal Neurons, Jesse E. Hanson, Lunbin Deng, David H. Hackos, Shih-Ching Lo, Benjamin E. Lauffer, Pascal Steiner, and Qiang Zhou,
J. Neurosci., Apr 2013; 33: 5924 - 5929.
[HDAC1] Inositol Polyphosphate Multikinase Is a Coactivator of p53-Mediated Transcription and Cell Death, Risheng Xu, Nilkantha Sen, Bindu D. Paul, Adele M. Snowman, Feng Rao, M. Scott Vandiver, Jing Xu, and Solomon H. Snyder,
Sci. Signal., Apr 2013; 6: ra22.
[IPMK] Cooperative Activation of Tissue-Specific Genes by pRB and E2F1, Stephen Flowers, Fuhua Xu, and Elizabeth Moran,
Cancer Res., Apr 2013; 73: 2150 - 2158.
[E2F1] 15-PGDH inhibits hepatocellular carcinoma growth through 15-keto-PGE2/PPAR?-mediated activation of p21WAF1/Cip1, D Lu, C Han & T Wu,
Oncogene doi:10.1038/onc.2013.69
[CDKN1A ] ACP5, a direct transcriptional target of FoxM1, promotes tumor metastasis and indicates poor prognosis in hepatocellular carcinoma, L Xia, W Huang, D Tian, Z Chen, L Zhang, + et al.,
Oncogene doi:10.1038/onc.2013.90
[ACP5 ] RNH1 regulation of reactive oxygen species contributes to histone deacetylase inhibitor resistance in gastric cancer cells, Y Zhu, K Das, J Wu, M H Lee & P Tan,
Oncogene doi:10.1038/onc.2013.104
[RNH1 ] Identification and Cytoprotective Function of a Novel Nestin Isoform, Nes-S, in Dorsal Root Ganglia Neurons, Peng-Han Su, Chih-Cheng Chen, Ya-Fan Chang, Zong-Ruei Wong, Kai-Wei Chang, Bu-Miin Huang, and Hsi-Yuan Yang,
J. Biol. Chem., Mar 2013; 288: 8391 - 8404.
[NES]
* Delivery time is an estimate in business days. Occasional delays may occur due to unforeseen complexities in the preparation of your construct. International customers may expect an additional 1-2 weeks in shipping
