Product Details

Full Product Name

Rabbit anti-Homo sapiens (Human) LARP7 Polyclonal antibody

Uniprot No.

Q4G0J3

Target Names

LARP7

Alternative Names

DKFZp564K112 antibody; HDCMA18P antibody; La related protein 7 antibody; La ribonucleoprotein domain family member 7 antibody; La ribonucleoprotein domain family member 7 antibody; La-related protein 7 antibody; LARP 7 antibody; larp7 antibody; LARP7_HUMAN antibody; MGC104360 antibody; P TEFb interaction protein for 7SK stability antibody; P-TEFb-interaction protein for 7SK stability antibody; PIP7S antibody

Raised in

Rabbit

Species Reactivity

Human

Immunogen

Recombinant Human La-related protein 7 protein (409-471AA)

Immunogen Species

Homo sapiens (Human)

Conjugate

HRP

Clonality

Polyclonal

Isotype

IgG

Purification Method

>95%, Protein G purified

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4

Form

Liquid

Tested Applications

ELISA

Protocols

ELISA Protocol

Troubleshooting and FAQs

Antibody FAQs

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Target Background

Function

RNA-binding protein that specifically binds distinct small nuclear RNA (snRNAs) and regulates their processing and function. Specifically binds the 7SK snRNA (7SK RNA) and acts as a core component of the 7SK ribonucleoprotein (RNP) complex, thereby acting as a negative regulator of transcription elongation by RNA polymerase II. The 7SK RNP complex sequesters the positive transcription elongation factor b (P-TEFb) in a large inactive 7SK RNP complex preventing RNA polymerase II phosphorylation and subsequent transcriptional elongation. The 7SK RNP complex also promotes snRNA gene transcription by RNA polymerase II via interaction with the little elongation complex (LEC). LARP7 specifically binds to the highly conserved 3'-terminal U-rich stretch of 7SK RNA; on stimulation, remains associated with 7SK RNA, whereas P-TEFb is released from the complex. LARP7 also acts as a regulator of mRNA splicing fidelity by promoting U6 snRNA processing. Specifically binds U6 snRNAs and associates with a subset of box C/D RNP complexes: promotes U6 snRNA 2'-O-methylation by facilitating U6 snRNA loading into box C/D RNP complexes. U6 snRNA 2'-O-methylation is required for mRNA splicing fidelity. Binds U6 snRNAs with a 5'-CAGGG-3' sequence motif. U6 snRNA processing is required for spermatogenesis.

Gene References into Functions

LARP7 may have inhibited the proliferation and increased the radioiodine uptake of PTC cells by regulating the SHH signaling pathway. PMID: 29620212
a structural model for Larp7 binding to the 7SK 3' end and mechanism for 7SK RNP assembly. This work provides insight into how this domain contributes to 7SK recognition and assembly of the core 7SK RNP. PMID: 29946027
LARP7 knockdown induces progressive time-dependent telomere shortening concomitant with a reduction in telomerase enzymatic activity and a decrease in full-length (catalytically active) TERT mRNA in vitro, and that humans with LARP7 deficiency display dramatically short telomeres, borderline anemia in younger generations, and anticipation consistent with a telomeropathy. PMID: 27766953
The 7SK small nuclear RNP (snRNP), composed of the 7SK small nuclear RNA (snRNA), MePCE, and Larp7, also functions as a canonical transcription factor that, in collaboration with the little elongation complex (LEC) comprising ELL, Ice1, Ice2, and ZC3H8, promotes transcription of RNAPII-specific spliceosomal snRNA and small nucleolar RNA (snoRNA) genes. PMID: 28254838
protein HEXIM with 7SKsnRNP complex comprising the non-coding RNA 7SK and proteins MePCE and LARP7. PMID: 25863285
results suggest that LARP7 uses both its N- and C-terminal domains to stabilize 7SK in a closed structure, which forms by joining conserved sequences at the 5'-end with the foot of the 3' hairpin and has thus functional implications PMID: 25753663
LARP7 suppresses P-TEFb activity to inhibit breast cancer progression and metastasis. PMID: 25053741
LARP7 is most likely recruited to the HIV-1 promoter in the presence of hnRNP A1. PMID: 24607481
The results demonstrate that the La modules of the human LARP7 is also active in tRNA-mediated suppression, even in the absence of stable UUU-3'OH trailer protection. PMID: 23887937
Mediator MED23 regulates basal transcription in vivo via an interaction with P-TEFb. PMID: 23340209
Loss of function mutation in LARP7, chaperone of 7SK ncRNA, causes a syndrome of facial dysmorphism, intellectual disability, and primordial dwarfism PMID: 22865833
LARP7 downregulation occurs early during gastric tumorigenesis and may promote gastric tumorigenesis via p-TEFb dysregulation. PMID: 22488152
7SK RNA thus establishes gene-dependent plasticity between HMGA1 chromatin remodeling and transcription initiation and P-TEFb transcription elongation. PMID: 21957495
A combination of restrictive chromatin structures at the HIV long terminal repeat and limiting P-TEFb levels contribute to transcriptional silencing leading to latency in primary CD4(+) T cells. PMID: 20410271
Results identify PIP7S as a La-related protein stably associated with and required for 7SK snRNP integrity. PMID: 18249148
Results indicate LARP7 is a 7SK-binding protein. PMID: 18281698
Results suggest that LARP7 is a negative transcriptional regulator of polymerase II genes, acting by means of the 7SK RNP system. PMID: 18483487