E. coli biotin ligase
(BirA) is highly specific in covalently attaching biotin to the 15
amino
acid AviTag peptide. This recombinant protein was biotinylated in
vivo
by AviTag-BirA technology, which method is BriA catalyzes amide
linkage
between the biotin and the specific lysine of the AviTag.
The tag type will
be
determined during production process. If you have specified tag
type, please tell us and we will develop the specified tag
preferentially.
產品提供形式:
Liquid or Lyophilized powder
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Note: We will
preferentially ship the format that we have in stock, however,
if you have any special requirement for the format, please
remark your requirement when placing the order, we will prepare
according to your demand.
復溶:
We recommend that this vial be briefly centrifuged
prior
to opening to bring the contents to the bottom. Please reconstitute
protein in deionized sterile water to a concentration of 0.1-1.0
mg/mL.We recommend to add 5-50% of glycerol (final concentration)
and
aliquot for long-term storage at -20℃/-80℃. Our default final
concentration of glycerol is 50%. Customers could use it as
reference.
儲存條件:
Store at -20°C/-80°C upon receipt, aliquoting is
necessary for
mutiple use. Avoid repeated freeze-thaw cycles.
保質期:
The shelf life is related to many factors, storage
state,
buffer ingredients, storage temperature and the stability of the
protein
itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C.
The
shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期:
Delivery time may
differ from different purchasing way or location, please kindly
consult your local distributors for specific delivery time.
Note: All of our
proteins are default shipped with normal blue ice packs, if you
request to ship with dry ice, please communicate with us in
advance
and extra fees will be charged.
注意事項:
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Transcriptional regulator that binds the cAMP response element (CRE), a sequence present in many viral and cellular promoters. Isoforms are either transcriptional activators or repressors. Plays a role in spermatogenesis and is involved in spermatid maturation.; May play a role in the regulation of the circadian clock: acts as a transcriptional repressor of the core circadian component PER1 by directly binding to cAMP response elements in its promoter.
基因功能參考文獻:
CREM drives an inflammatory phenotype of T cells in Juvenile idiopathic arthritis. PMID: 29925386
this study shows an eventually involvement of CREM gene in the development of T1D pathology in Tunisian families. These facts are consistent with a major role for transcription factor genes involved in the immune pathways in the control of autoimmunity. PMID: 27840176
Data indicate a role for inducible cyclic AMP early repressor (ICER) in G1 checkpoint regulation in hematopoietic stem cells (HSCs). PMID: 27822872
Study provides evidence that increased Set1 binding at the promoter induces aberrant epigenetic alterations and up-regulates CREMA in systemic lupus erythematosus. PMID: 27904655
CREMalpha SNPs rs2295415 and rs1057108 may be novel genetic susceptibility factors for SLE, especially at haplotype level. PMID: 26601115
These findings indicated that the polymorphisms of CREM gene were associated with nonobstructive azoospermia in the Chinese population and low CREM expression might be involved in the pathogenesis of spermatogenesis maturation arrest. PMID: 24943041
overexpressed in the nuclei of hepatocellular carcinoma cells PMID: 25401338
In Alzheimer's brain, we found an increased cellular expression of CREM in dentate gyrus neurons as compared to normal aging brains. PMID: 24100545
Data suggest ICER/CREM plays seminal role in down-regulation of expression/secretion of insulin by pancreatic beta-cell as an adaptive response to factors that promote diabetes; inappropriate induction of ICER leads to beta-cell dysfunction. [REVIEW] PMID: 24672804
CaMK4-dependent activation of AKT/mTOR and CREM-alpha underlies autoimmunity-associated Th17 imbalance. PMID: 24667640
CREMalpha orchestrates epigenetic remodeling of the CD8A,B through the recruitment of DNA methyltransferase (DNMT) 3a and histone methyltransferase G9a. PMID: 24297179
Data suggest that cyclic AMP response element modulator-1 (CREM-1) might play an important role in the regulation of tumor metastasis and invasion and serve as a tumor suppressor in esophageal squamous cell carcinoma (ESCC). PMID: 23929392
Transcription factor CREM is an important regulator of atrial growth implicated in the development of atrial fibrillation. PMID: 22093963
transcription factor cAMP-responsive element modulator alpha (CREMalpha), which is expressed at increased levels in T cells from systemic lupus erythematosus patients, contributes to transcriptional silencing of CD8A and CD8B. PMID: 24047902
The results of this study suggested that the single nucleotide polymorphisms of CREM do not influence diagnosis and treatment response in patients with major depressive disorder and bipolar disorder. PMID: 22386572
Increased CREMalpha binding to the Notch-1 promoter resulted in significantly reduced Notch-1 promoter activity and gene transcription. PMID: 23124208
Data indicate that CpG-DNA methylation and mRNA expression of CREM, IL2, and IL17A of systemic lupus erythematosus (SLE) T cells reflect the effector memory CD4+ T-cell phenotype. PMID: 23019580
CREM expression is increased in thyroid cancer tissue and may play a role in the downregulation of sodium iodide symporter expression in thyroid cancer acting at the transcriptional level PMID: 22510021
Estrogen can modulate the expression of CREMalpha and lead to IL-2 suppression in human T lymphocytes, thus revealing a molecular link between hormones and the immune system in Systemic lupus erythematosus PMID: 22281835
CREMalpha suppresses spleen tyrosine kinase expression in normal but not systemic lupus erythematosus T cells. PMID: 21953500
scriptive Statement The rsults of this study suggested the lack of influence of SNPs under investigation in the present study on the susceptibility to schizophrenia and on the response to antipsychotics. PMID: 22198373
cAMP-responsive element modulator alpha (CREMalpha) suppresses IL-17F protein expression in T lymphocytes from patients with systemic lupus erythematosus (SLE). PMID: 22184122
Common variants of the CREM gene are involved in the genetic component conferring general susceptibility to inflammatory bowel disease in the Tunisian population. PMID: 22019623
Data provide direct evidence that CREMalpha mediates silencing of the IL2 gene in SLE T cells though histone deacetylation and CpG-DNA methylation. PMID: 21976679
cAMP-responsive element modulator (CREM)alpha protein induces interleukin 17A expression and mediates epigenetic alterations at the interleukin-17A gene locus in patients with systemic lupus erythematosus. PMID: 22025620
Induction of ICER links oxidative stress to beta cell failure caused by oxidised LDL, and it can be effectively abrogated by antioxidant treatment. PMID: 21547497
Phosphorylation of ICER on a discrete residue targeted ICER to be monoubiquitinated. PMID: 21767532
AP-1-dependent up-regulation of the P2 promoter, SLE T cells fail to further increase their basal CREM levels upon T cell activation due to a decreased content of the AP-1 family member c-Fos PMID: 21757709
ICER mediates chemotherapy anticancer activity through DUSP1-p38 pathway activation and drives the cell program from survival to apoptosis PMID: 21325296
Patients with two types of male factor infertility display an increased abnormal methylation of CREM compared with control subjects. PMID: 21507395
anscriptional activation of the cAMP-responsive modulator promoter in human T cells is regulated by protein phosphatase 2A-mediated dephosphorylation of SP-1 and reflects disease activity in patients with systemic lupus erythematosus. PMID: 21097497
Results indicate that SPAG8 acts as a regulator of ACT and plays an important role in CREM-ACT-mediated gene transcription during spermatogenesis. PMID: 20488182
review of CREM transcription factor involvement with spermatogenesis PMID: 11988318
Increased expression of CREM in T cells from systemic lupus erythmatosus (SLE) patients results from increased transcriptional activity of the CREM gene, and its binding to IL-2 promoter is responsible for decreased production of IL-2 by SLE T cells. PMID: 12370343
5'-RACE on human testis cDNA indicated that exon theta2 is > or = 113 bp in size. In-vitro translation of CREM-theta1 and CREM-theta2 splice variants cloned from human testis yielded full length proteins and also shorter repressor products PMID: 12397208
Direct binding of CREM to the CRE site of the IL-2 promoter endows CREM with a central role in repression of IL-2 gene expression: CREM binding promotes chromatin deacetylation, limits promoter accessibility and decreases its transcriptional activity. PMID: 12626549
expression of cAMP-responsive element modulator(CREM) activators is a prerequisite for normal spermatogenesis, and the lack of CREM activator expression results in male infertility PMID: 14511788
These findings provide little additional evidence for a susceptibility locus for panic disorder either within the CREM gene or in a nearby region of chromosome 10p11 in our sample PMID: 15048659
Sperm nucleus PHGPx expression is mediated by the transcription factor CREM-tau, which acts as a cis-acting element localized in the first intron of the PHGPx gene. [CREM-tau] PMID: 15225122
down-regulation of CREMtau-mediated gene expression by GCNF PMID: 15456763
Lack of spermatid elongation was not due to defective CREM expression. Therefore, CREM did not play a pathogenetic role in the onset of SMA in humans. PMID: 15474076
that heart-directed expression of CREM-IbDeltaC-X leads to complex cardiac alterations, suggesting CREM as a central regulator of cardiac morphology, function, and gene expression PMID: 15569686
isoforms regulate discrete groups of genes in myometrium PMID: 15691874
Results identify calcium/calmodulin-dependent kinase IV as being responsible for the increased expression of CREM and the decreased production of interleukin-2 in systemic lupus erythematosus T cells. PMID: 15841182
CREM activator and repressor isoforms were found in all germ cell types, but not in Sertoli cells; data suggest a fine-tuning between CREM activator and repressor isoforms in normal germ cells that might be disturbed during impaired spermatogenesis PMID: 16048633
SRp40 regulates the switch in splicing from production of CREMtau(2)alpha to CREMalpha PMID: 16103121
Screening of a substantial number of patients would be required to clarify whether observed combinations of genetic changes in the CREM gene might explain some forms of male infertility. PMID: 16143638
The interaction between CREM and one haplotype of ACT (activator of CREM in the testis) was reduced by 45% in a yeast two-hybrid assay. PMID: 16687568
HNF4alpha, CREM, HNF1alpha, and C/EBPalpha have roles in transcriptional regulation of the glucose-6-phosphatase gene by cAMP/vasoactive intestinal peptide in the intestine PMID: 16893891
These results constitute the first demonstration of the transcriptional control of ATP1A4 gene expression by cAMP and by CREMtau, a transcription factor essential for male germ cell gene expression. PMID: 16894555
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亞細胞定位:
Nucleus.; [Isoform 6]: Cytoplasm. Nucleus.
蛋白家族:
BZIP family
組織特異性:
Expressed in testes (round spermatids) (at protein level). Isoform 14 is the major activator form in testes.