05-1517 | Anti-hnRNP Q Antibody, clone 18E4

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      Key Spec Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      HWB, ICC, IPMPurifiedMonoclonal Antibody
      Catalogue Number05-1517
      DescriptionAnti-hnRNP Q Antibody, clone 18E4
      Alternate Names
      • heterogeneous nuclear ribonucleoprotein Q-like
      • Synaptotagmin-binding, cytoplasmic RNA-interacting protein
      • Glycine- and tyrosine-rich RNA-binding protein
      • GRY-RBP
      • NS1-associated protein 1
      Background InformationHeterogeneous nuclear ribonucleoprotein Q commoly refered to as hnRNP Q can be found as three different isoforms derived from alternative splicing of a single gene. This RNA binding protein is implicated in control of mRNA precursor splicing for the survival of motor neurons (SMN) protein, a gene. Loss-of-function mutations of SMN are linked to spinal muscular atrophy (SMA) a common neurodegenerative disease. It has been shown that hnRNP Q proteins interact with SMN, and this is interacton is required for efficient pre-mRNA splicing in vitro. Current data suggests that hnRNP Q is a splicing modulator of SMN.
      Product Information
      • HeLa cell lysate
      PresentationPurified mouse monoclonal IgGκ in buffer containing 0.1 M Tris-Glycine (pH 7.4, 150 mM NaCl) with 0.05% sodium azide.
      ApplicationUse Anti-hnRNP Q Antibody, clone 18E4 (Mouse Monoclonal Antibody) validated in WB, ICC, IP to detect hnRNP Q also known as heterogeneous nuclear ribonucleoprotein Q-like.
      Key Applications
      • Western Blotting
      • Immunocytochemistry
      • Immunoprecipitation
      Application NotesImmunocytochemistry
      Cited by independent researcher using a representative lot.
      Cited by independent researcher using a representative lot.
      Biological Information
      ImmunogenRecombinant protein corresponding to human hnRNP Q.
      ConcentrationPlease refer to the Certificate of Analysis for the lot-specific concentration.
      SpecificityThis antibody recognizes hnRNP Q.
      Species Reactivity
      • Human
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Gene Symbol
      • hnRNP-Q
      • hnRNP Q
      • SYNCRIP
      • HNRPQ
      • NSAP1
      Purification MethodProtein G Purified
      UniProt Number
      UniProt SummaryFUNCTION: Heterogenous nuclear ribonucleoprotein (hnRNP) implicated in mRNA processing mechanisms. Component of the CRD-mediated complex that promotes MYC mRNA stability. Isoform 1, isoform 2 and isoform 3 are associated in vitro with pre-mRNA, splicing intermediates and mature mRNA protein complexes. Isoform 1 binds to apoB mRNA AU-rich sequences. Isoform 1 is part of the APOB mRNA editosome complex and may modulate the postranscriptional C to U RNA-editing of the APOB mRNA through either by binding to A1CF (APOBEC1 complementation factor), to APOBEC1 or to RNA itself. May be involved in translationally coupled mRNA turnover. Implicated with other RNA-binding proteins in the cytoplasmic deadenylation/translational and decay interplay of the FOS mRNA mediated by the major coding-region determinant of instability (mCRD) domain. Interacts in vitro preferentially with poly(A) and poly(U) RNA sequences. Isoform 3 may be involved in cytoplasmic vesicle-based mRNA transport through interaction with synaptotagmins.

      SUBUNIT STRUCTURE: Isoform 1 is a component of the APOB mRNA editosome complex and interacts with APOBEC1 and A1CF (APOBEC1 complementation factor). Part of a complex associated with the FOS mCRD domain and consisting of PABPC1, PAIP1, CSDE1/UNR, HNRPD and SYNCRIP. Isoform 3 interacts with HNRPR. Interacts with POLR2A hyperphosphorylated C-terminal domain. Interacts with minute virus of mice (MVM) NS1 protein. Isoform 1, isoform 2 and isoform 3 interact with SMN. Isoform 3 interacts through its C-terminal domain with SYT7, SYT8 and SYT9 By similarity. The non-phosphorylated and phosphorylated forms are colocalized with PAIP1 in polysomes By similarity. Identified in a histone pre-mRNA complex, at least composed of ERI1, LSM11, SLBP, SNRPB, SYNCRIP and YBX1 By similarity. Identified in the spliceosome C complex, at least composed of AQR, ASCC3L1, C19orf29, CDC40, CDC5L, CRNKL1, DDX23, DDX41, DDX48, DDX5, DGCR14, DHX35, DHX38, DHX8, EFTUD2, FRG1, GPATC1, HNRPA1, HNRPA2B1, HNRPA3, HNRPC, HNRPF, HNRPH1, HNRPK, HNRPM, HNRPR, HNRPU, KIAA1160, KIAA1604, LSM2, LSM3, MAGOH, MORG1, PABPC1, PLRG1, PNN, PPIE, PPIL1, PPIL3, PPWD1, PRPF19, PRPF4B, PRPF6, PRPF8, RALY, RBM22, RBM8A, RBMX, SART1, SF3A1, SF3A2, SF3A3, SF3B1, SF3B2, SF3B3, SFRS1, SKIV2L2, SNRPA1, SNRPB, SNRPB2, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF, SNRPG, SNW1, SRRM1, SRRM2, SYF2, SYNCRIP, TFIP11, THOC4, U2AF1, WDR57, XAB2 and ZCCHC8. Component of the coding region determinant (CRD)-mediated complex, composed of DHX9, HNRNPU, IGF2BP1, SYNCRIP and YBX1. Identified in a mRNP complex, at least composed of DHX9, DDX3X, ELAVL1, HNRNPU, IGF2BP1, ILF3, PABPC1, PCBP2, PTBP2, STAU1, STAU2, SYNCRIP and YBX1. Identified in a mRNP granule complex, at least composed of ACTB, ACTN4, DHX9, ERG, HNRNPA1, HNRNPA2B1, HNRNPAB, HNRNPD, HNRNPL, HNRNPR, HNRNPU, HSPA1, HSPA8, IGF2BP1, ILF2, ILF3, NCBP1, NCL, PABPC1, PABPC4, PABPN1, RPLP0, RPS3, RPS3A, RPS4X, RPS8, RPS9, SYNCRIP, TROVE2, YBX1 and untranslated mRNAs.

      SUBCELLULAR LOCATION: Cytoplasm. Microsome By similarity. Endoplasmic reticulum By similarity. Nucleus By similarity. Note: The tyrosine phosphorylated form bound to RNA is found in microsomes By similarity. Localized in cytoplasmic mRNP granules containing untranslated mRNAs.

      Isoform 1: Nucleus › nucleoplasm By similarity. Note: Expressed predominantly in the nucleoplasm By similarity.

      Isoform 2: Nucleus › nucleoplasm By similarity. Note: Expressed predominantly in the nucleoplasm By similarity.

      Isoform 3: Nucleus › nucleoplasm By similarity. Note: Expressed predominantly in the nucleoplasm By similarity.

      TISSUE SPECIFICITY: Ubiquitously expressed. Detected in heart, brain, pancreas, placenta, spleen, lung, liver, skeletal muscle, kidney, thymus, prostate, uterus, small intestine, colon, peripheral blood and testis.

      Domain The domain containing eight Arg-Gly-Gly repeats may be involved in RNA-binding and protein-protein interactions.

      PTM: Phosphorylated on tyrosine. The membrane-bound form found in microsomes is phosphorylated in vitro by insulin receptor tyrosine kinase (INSR). Phosphorylation is inhibited upon binding to RNA, whereas the cytoplasmic form is poorly phosphorylated By similarity. Phosphorylated upon DNA damage, probably by ATM or ATR.

      SEQUENCE SIMILARITIES: Contains 3 RRM (RNA recognition motif) domains.

      SEQUENCE CAUTION: The sequence AAH15575.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 413.
      Molecular WeightThe calculated molecular weight is 70 kDa. Clone 18E4 can recognizes four bands on the Western Blot of total HeLa cell lysate corresponding to molecular masses of ~80, ~70, ~60 and ~55 kDa. hnRNP Q has three isoforms of ~70– 55 kDa. The ~80 kDa reactive band was identified as hnRNP R, which migrates at ~80 kDa on SDS–PAGE. (Mourelatos., Z., et al., EMBO J., 20, 5443-5452 (2001).)
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blot in HeLa cell lysate.

      Western Blot Analysis: 1 µg/ml of this antibody detected hnRNP Q on 10 µg of HeLa cell lysate.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size100 µg
      Transport Information
      Supplemental Information

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      Life Science Research > Antibodies and Assays > Primary Antibodies