63184
伊红-5-马来酰亚胺
suitable for fluorescence, ≥93% (HPLC)
别名:
EMA, 伊红-5-马来酰亚胺
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关于此项目
经验公式（希尔记法）:
C24H9Br4NO7
化学文摘社编号:
分子量:
742.95
NACRES:
NA.32
PubChem Substance ID:
UNSPSC Code:
12352207
MDL number:
InChI
1S/C24H9Br4NO7/c25-13-6-11-21(17(27)19(13)32)35-22-12(7-14(26)20(33)18(22)28)24(11)10-2-1-8(5-9(10)23(34)36-24)29-15(30)3-4-16(29)31/h1-7,32-33H
SMILES string
Oc1c(Br)cc2c(Oc3c(Br)c(O)c(Br)cc3C24OC(=O)c5cc(ccc45)N6C(=O)C=CC6=O)c1Br
InChI key
YRCLWXRIEYQTAV-UHFFFAOYSA-N
assay
≥93% (HPLC)
Quality Level
form
powder
mol wt
742.95 g/mol
color
light orange to dark orange, light red
fluorescence
λex 524 nm; λem 545 nm (after derivatization with 2-mercaptoethanol)
suitability
suitable for fluorescence
storage temp.
2-8°C
General description
5-马来酰亚胺-伊红，也称为 EMA 或伊红-5-马来酰亚胺，是一种荧光结合剂。5-马来酰亚胺-伊红结合试验可测量 EMA 标记细胞减少的平均通道荧光（MCF）读数。
Application
伊红-5-马来酰亚胺已被用作人红细胞带 3 蛋白的荧光探针。 它被广泛用作实验室诊断探针，以通过流式细胞术检测遗传性球形红细胞增多症（HS）。 伊红-5-马来酰亚胺结合试验已用于分析阿勒替尼（一线治疗）对于变性淋巴瘤激酶（ALK）的效果。
Other Notes
三重探针。测量蛋白质在溶液和膜中的旋转扩散，包括肌球蛋白和丙酮酸脱氢酶
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
S Ishiwata et al.
The Journal of biological chemistry, 262(17), 8314-8317 (1987-06-15)
We studied the rotational Brownian motions of myosin heads, of which the sulfhydryl group was selectively labeled with the triplet probe 5-eosinylmaleimide, in myofibril by using flash-induced phosphorescence anisotropy decay measurements. The anisotropy decay curve under relaxing conditions consisted of
Renée L Crisp et al.
Pediatric blood & cancer, 59(7), 1299-1301 (2012-04-11)
We studied 31 children with hemolytic anemia, or with positive family history for hereditary spherocytosis (HS), to assess the reliability of capillary blood samples for the diagnosis. HS was diagnosed in 20 patients. Cryohemolysis (CH) was positive in 94% and
Linda Hunt et al.
Cytometry. Part B, Clinical cytometry, 88(1), 50-57 (2014-09-18)
The eosin-5'-maleimide (EMA) Binding test measures reduced mean channel fluorescence (MCF) reading of EMA-labeled red cells (EMA-RBCs) from patients with hereditary spherocytosis (HS). Reporting test results can be either in the actual MCF reading or as a ratio by normalization
A J Visser et al.
European journal of biochemistry, 121(1), 233-235 (1981-12-01)
The enzymatically reduced lipoyl residues of the transacetylase component of the pyruvate dehydrogenase complex from Escherichia coli were labeled with eosin maleimide. Using eosin as triplet probe, triplet-triplet absorption dichroism measurements were performed to obtain rotational correlation times of the
P Joshi et al.
International journal of laboratory hematology, 38(5), 520-526 (2016-06-25)
Laboratory diagnosis of hereditary spherocytosis (HS) relies on increased incubated red cell osmotic fragility test for screening. We evaluated the diagnostic role of eosin-5'-maleimide (EMA) binding test by flow cytometry in spherocytic and microcytic hypochromic hematological disorders in North Indians.
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