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Determination of the RNA binding specificity of the heterogeneous nuclear ribonucleoprotein (hnRNP) H/H'/F/2H9 family.
J Biol Chem. 2001 Nov 23; 276(47):43850-9.JB

Abstract

Members of the heterogeneous nuclear ribonucleoprotein (hnRNP) H protein family, H, H', F, and 2H9, are involved in pre-mRNA processing. We analyzed the assembly of these proteins from splicing extracts onto four RNA regulatory elements as follows: a high affinity hnRNP A1-binding site (WA1), a sequence involved in Rev-dependent export (p17gag INS), an exonic splicing silencer from the beta-tropomyosin gene, and an intronic splicing regulator (downstream control sequence (DCS) from the c-src gene. The entire family binds the WA1, instability (INS), and beta-tropomyosin substrates, and the core-binding site for each is a run of three G residues followed by an A. Transfer of small regions containing this sequence to a substrate lacking hnRNP H binding activity is sufficient to promote binding of all family members. The c-src DCS has been shown to assemble hnRNP H, not hnRNP F, from HeLa cell extracts, and we show that hnRNP 2H9 does not bind this element. The DCS contains five G residues followed by a C. Mutation of the C to an A changes the specificity of the DCS from a substrate that binds only hnRNP H/H' to a binding site for all hnRNP H family members. We conclude that the sequence GGGA is recognized by all hnRNP H family proteins.

Authors+Show Affiliations

Department of Molecular, Cellular, and Developmental Biology and Center for Molecular Biology of RNA, Sinsheimer Laboratories, University of California, Santa Cruz, California 95064, USA.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

11571276

Citation

Caputi, M, and A M. Zahler. "Determination of the RNA Binding Specificity of the Heterogeneous Nuclear Ribonucleoprotein (hnRNP) H/H'/F/2H9 Family." The Journal of Biological Chemistry, vol. 276, no. 47, 2001, pp. 43850-9.
Caputi M, Zahler AM. Determination of the RNA binding specificity of the heterogeneous nuclear ribonucleoprotein (hnRNP) H/H'/F/2H9 family. J Biol Chem. 2001;276(47):43850-9.
Caputi, M., & Zahler, A. M. (2001). Determination of the RNA binding specificity of the heterogeneous nuclear ribonucleoprotein (hnRNP) H/H'/F/2H9 family. The Journal of Biological Chemistry, 276(47), 43850-9.
Caputi M, Zahler AM. Determination of the RNA Binding Specificity of the Heterogeneous Nuclear Ribonucleoprotein (hnRNP) H/H'/F/2H9 Family. J Biol Chem. 2001 Nov 23;276(47):43850-9. PubMed PMID: 11571276.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of the RNA binding specificity of the heterogeneous nuclear ribonucleoprotein (hnRNP) H/H'/F/2H9 family. AU - Caputi,M, AU - Zahler,A M, Y1 - 2001/09/24/ PY - 2001/9/26/pubmed PY - 2002/1/5/medline PY - 2001/9/26/entrez SP - 43850 EP - 9 JF - The Journal of biological chemistry JO - J Biol Chem VL - 276 IS - 47 N2 - Members of the heterogeneous nuclear ribonucleoprotein (hnRNP) H protein family, H, H', F, and 2H9, are involved in pre-mRNA processing. We analyzed the assembly of these proteins from splicing extracts onto four RNA regulatory elements as follows: a high affinity hnRNP A1-binding site (WA1), a sequence involved in Rev-dependent export (p17gag INS), an exonic splicing silencer from the beta-tropomyosin gene, and an intronic splicing regulator (downstream control sequence (DCS) from the c-src gene. The entire family binds the WA1, instability (INS), and beta-tropomyosin substrates, and the core-binding site for each is a run of three G residues followed by an A. Transfer of small regions containing this sequence to a substrate lacking hnRNP H binding activity is sufficient to promote binding of all family members. The c-src DCS has been shown to assemble hnRNP H, not hnRNP F, from HeLa cell extracts, and we show that hnRNP 2H9 does not bind this element. The DCS contains five G residues followed by a C. Mutation of the C to an A changes the specificity of the DCS from a substrate that binds only hnRNP H/H' to a binding site for all hnRNP H family members. We conclude that the sequence GGGA is recognized by all hnRNP H family proteins. SN - 0021-9258 UR - https://www.unboundmedicine.com/medline/citation/11571276/Determination_of_the_RNA_binding_specificity_of_the_heterogeneous_nuclear_ribonucleoprotein__hnRNP__H/H'/F/2H9_family_ L2 - http://www.jbc.org/cgi/pmidlookup?view=long&pmid=11571276 DB - PRIME DP - Unbound Medicine ER -