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:
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.
Metalloproteinase which specifically cleaves insulin-like growth factor binding protein (IGFBP)-5 at the '163-Ser-|-Lys-164' bond. Shows limited proteolysis toward IGFBP-3.
基因功能參考文獻:
PAPP-A2 mutation is associated with idiopathic short stature. PMID: 29653372
The findings suggest a possible pathophysiological link between the development of Fetal growth restriction and the expression of PAPPA, PAPPA2 and PLAC-1. PMID: 29532882
Pregnancy associated plasma protein-A (PAPP-A) appears to be a potentially useful biomarker for short-term risk stratification of patients presenting with chest pain of ischemic origin (Review). PMID: 29144175
PAPP-A2 is increased in Hemodialysis patients and interacts with PAPP-A on patients prognosis. PMID: 28854436
This review evaluates the current data concerning PAPP-A2 function, and particularly the effect of PAPP-A2 mutation on growth. PMID: 29238946
These patients provide important insights into the regulation of longitudinal growth in humans, documenting the critical role of PAPP-A2 in releasing IGF-I from its binding proteins. PMID: 26902202
Short-term treatment with progressive doses of rhIGF1 (recombinant human insulin-like growth factor-1) improved growth in two siblings with deficiency of PAPP-A2 (pregnancy-associated plasma protein-A2) [due to a homozygous loss-of-function frameshift mutation in exon 3 of the PAPP-A2 gene (p.D643fs25*)] that resulted in postnatal growth failure due to resulting decrease in IGF1 bioavailability. [CASE REPORT] PMID: 27648969
in situ hybridization (ISH) and immunohistochemistry (IHC) were employed to examine the spatial and temporal expression of PAPPA2 in the human fetomaternal interface. PMID: 27525857
PAPP-A2 is differentially expressed in different trophoblast populations and shows strong down regulation in the mid second trimester in chorionic villous samples. PMID: 26748159
overexpression in Down syndrome from placental mRNA to maternal serum protein PMID: 25154785
The association between this PAPPA2 single nucleotide polymorphism and developmental dysplasia of the hip was evaluated. PMID: 24672801
The upregulation of PAPP-A2 observed in preeclampsia at term occurs early in pregnancy, before the symptoms develop. PMID: 24336677
PAPPA2 may be upregulated in severe pre-eclampsia and, functionally, this may be mediated via increased placental hypoxia known to occur with this pregnancy disorder. PMID: 23484525
The existence of this assay will enable an assessment of the biomarker potential of PAPP-A2 in pre-eclampsia as well as other clinical conditions. PMID: 23804707
Association of a single nucleotide polymorphism in pregnancy-associated plasma protein-A2 with developmental dysplasia of the hip PMID: 22037112
factors previously known to be highly expressed in preeclamptic placentae (PGE2 and TNF-alpha), contribute to the upregulation of PAPPA2. results are consistent with the hypothesis that PAPPA2 is upregulated as a consequence of placental pathology PMID: 21496272
Circulating IGFBP-5 is proteolyzed by PAPP-A2 during pregnancy, resulting in increased IGF bioavailability, which may have important consequences for the development of the fetus and/or the well-being of the mother. PMID: 20103653
PAPP-A2 in syncytiotrophoblast cells was dramatically increased in pre-eclampsia. Maternal serum concentrations of PAPP-A2 were also significantly elevated in pre-eclampsia as compared with uncomplicated pregnancy. PMID: 18805800
Preeclampsia involves changes in the gene expression of PAPPA2 in placental cytotrophoblasts. PMID: 18818296
PAPPA2 is expressed in the syncytiotrophoblast layer of human placental villi and is also detected in some invasive extravillous trophoblasts in the first trimester PMID: 19474058
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亞細胞定位:
Secreted.
蛋白家族:
Peptidase M43B family
組織特異性:
Expressed abundantly in placenta, and non-pregnant mammary gland with low expression in the kidney, fetal brain and pancreas.