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Junctin / ASPH

aspartate beta-hydroxylase

Junctin / ASPH is thought to play an important role in calcium homeostasis. The gene is expressed from two promoters and undergoes extensive alternative splicing. The encoded set of proteins share varying amounts of overlap near their N-termini but have substantial variations in their C-terminal domains resulting in distinct functional properties. The longest isoforms (a and f) include a C-terminal Aspartyl/Asparaginyl beta-hydroxylase domain that hydroxylates aspartic acid or asparagine residues in the epidermal growth factor (EGF)-like domains of some proteins, including protein C, coagulation factors VII, IX, and X, and the complement factors C1R and C1S. Other isoforms differ primarily in the C-terminal sequence and lack the hydroxylase domain, and some have been localized to the endoplasmic and sarcoplasmic reticulum. Some of these isoforms are found in complexes with calsequestrin, triadin, and the ryanodine receptor, and have been shown to regulate calcium release from the sarcoplasmic reticulum. Some isoforms have been implicated in metastasis.

Gene Name: aspartate beta-hydroxylase
Synonyms: ASPH, A beta H-J-J, AAH, ASP beta-hydroxylase, BAH, Aspartate beta-hydroxylase, CASQ2BP1, Cardiac junctin, HAAH, Humbug, JCTN, Junctate, Junctin
Target Sequences: NM_004318 NP_004309.2 Q12797

Publications (2)

1
Profibrotic, Electrical, and Calcium-Handling Remodeling of the Atria in Heart Failure Patients With and Without Atrial Fibrillation. Molina CE, Abu-Taha IH, Wang Q, Roselló-Díez E, Kamler M, Nattel S, Ravens U, Wehrens XHT, Hove-Madsen L, Heijman J, Dobrev D. Frontiers in physiology. 2018 October;9:1383. [Full Text Article] [PubMed:30356673] [PMC:PMC6189336] Related Antibodies: LS-C196703.
2
The ryanodine receptor store-sensing gate controls Ca2+ waves and Ca2+-triggered arrhythmias. Chen W, Wang R, Chen B, Zhong X, Kong H, Bai Y, Zhou Q, Xie C, Zhang J, Guo A, Tian X, Jones PP, O'Mara ML, Liu Y, Mi T, Zhang L, Bolstad J, Semeniuk L, Cheng H, Zhang J, Chen J, Tieleman DP, Gillis AM, Duff HJ, Fill M, Song LS, Chen SR. Nature medicine. Feb;20:184-92. [Full Text Article] [PubMed:24441828] [PMC:PMC4269524] Related Antibodies: LS-C81640.

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Junctin / ASPH ELISA Kit
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Colorimetric - 450nm (TMB)
1 Plate/$783
Junctin / ASPH ELISA Kit
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Colorimetric - 450nm (TMB)
1 Plate/$783
Junctin / ASPH ELISA Kit
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Colorimetric - 450nm (TMB)
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Junctin / ASPH ELISA Kit
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0.156 - 10 ng/ml
Colorimetric - 450nm (TMB)
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For RESEARCH USE ONLY. Intended for use by laboratory professionals. Not intended for human diagnostic or therapeutic purposes.

The data on this page has been compiled from LifeSpan internal sources, the National Center for Biotechnology Information (NCBI), and The Universal Protein Resource (UniProt).