Anti-hnRNP K/HNRNPK Antibody Picoband®

Heterogeneous nuclear ribonucleoprotein K (also protein K) is a protein that in humans is encoded by the HNRNPK gene. This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs) . The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA) . These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene is located in the nucleoplasm and has three repeats of KH domains that binds to RNAs. It is distinct among other hnRNP proteins in its binding preference; it binds tenaciously to poly (C) . This protein is also thought to have a role during cell cycle progession. Several alternatively spliced transcript variants have been described for this gene, however, not all of them are fully characterized.

Protein CBFA2T1; Cyclin-D-related protein; Eight twenty one protein; Protein ETO; Protein MTG8; Zinc finger MYND domain-containing protein 2; RUNX1T1; AML1T1; CBFA2T1; CDR; ETO; MTG8; ZMYND2

Cancer, Domain Families, Epigenetics and Nuclear Signaling, Oncoproteins/Suppressors, Transcription, Transcription Factors, Tumor Suppressors, Zinc Finger

Transcriptional corepressor which facilitates transcriptional repression via its association with DNA-binding transcription factors and recruitment of other corepressors and histone-modifying enzymes (PubMed:12559562, PubMed:15203199) . Can repress the expression of MMP7 in a ZBTB33-dependent manner (PubMed:23251453) . Can repress transactivation mediated by TCF12 (PubMed:16803958) . Acts as a negative regulator of adipogenesis (By similarity) . The AML1-MTG8/ETO fusion protein frequently found in leukemic cells is involved in leukemogenesis and contributes to hematopoietic stem/progenitor cell self-renewal (PubMed:23812588) .

1. Au, P. Y. B., Goedhart, C., Ferguson, M., Breckpot, J., Devriendt, K., Wierenga, K., Fanning, E., Grange, D. K., Graham, G. E., Galarreta, C., Jones, M. C., Kini, U., Stewart, H., Parboosingh, J. S., Kline, A. D., Innes, A. M., Care for Rare Canada Consortium. Phenotypic spectrum of Au-Kline syndrome: a report of six new cases and review of the literature. Europ. J. Hum. Genet. 26: 1272-1281, 2018. 2. Au, P. Y. B., You, J., Caluseriu, O., Schwartzentruber, J., Majewski, J., Bernier, F. P., Ferguson, M., Care for Rare Canada Consortium, Valle, D., Parboosingh, J. S., Sobreira, N., Innes, A. M., Kline, A. D. GeneMatcher aids in the identification of a new malformation syndrome with intellectual disability, unique facial dysmorphisms, and skeletal and connective tissue abnormalities caused by de novo variants in HNRNPK. Hum. Mutat. 36: 1009-1014, 2015. 3. Dejgaard, K., Leffers, H., Rasmussen, H. H., Madsen, P., Kruse, T. A., Gesser, B., Nielsen, H., Celis, J. E. Identification, molecular cloning, expression and chromosome mapping of a family of transformation upregulated hnRNP-K proteins derived by alternative splicing. J. Molec. Biol. 236: 33-48, 1994.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.