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Key Documents

D3385

Sigma-Aldrich

3′-Dephosphocoenzyme A

≥90% (HPLC)

Synonym(s):

3′-Desphosphocoenzyme A, dpCoA

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About This Item

Empirical Formula (Hill Notation):
C21H35N7O13P2S
CAS Number:
Molecular Weight:
687.55
MDL number:
UNSPSC Code:
41106305
PubChem Substance ID:
NACRES:
NA.51

Quality Level

Assay

≥90% (HPLC)

form

powder

impurities

≤1% CoA

storage temp.

−20°C

SMILES string

CC(C)(COP(O)(=O)OP(O)(=O)OCC1OC(C(O)C1O)n2cnc3c(N)ncnc23)C(O)C(=O)NCCC(=O)NCCS

InChI

1S/C21H35N7O13P2S/c1-21(2,16(32)19(33)24-4-3-12(29)23-5-6-44)8-39-43(36,37)41-42(34,35)38-7-11-14(30)15(31)20(40-11)28-10-27-13-17(22)25-9-26-18(13)28/h9-11,14-16,20,30-32,44H,3-8H2,1-2H3,(H,23,29)(H,24,33)(H,34,35)(H,36,37)(H2,22,25,26)

InChI key

KDTSHFARGAKYJN-UHFFFAOYSA-N

Application

3′-Dephosphocoenzyme A has been used as a substrate to initiate transcription.
Dephosphocoenzyme A is the direct precursor of coenzyme A. It is used for the synthesis of coenzyme A by bifunctional CoA Synthase (CoASy, 4′-phosphopantetheine adenylyltransferase/dephospho-CoA kinase) which performs the transfer of the γ-phosphate of ATP to dephosphocoenzyme A.

Biochem/physiol Actions

3′-Dephosphocoenzyme A (DepCoA), also called desphosphoCoA (dpCoA), is synthesized from 4-phosphopantetheine by the enzyme phosphopanthetheine adenylyltransferase. It is an intermediate in coenzyme A biosynthetic pathway. In the presence of dephospho-CoA kinase (CoaE), dephosphocoenzyme A is converted to coenzyme A. 3′-Dephosphocoenzyme shares adenosine-diphosphate substructure as like the purines and is a non-canonical nucleotide and is an initiator of transcription initiation. It is routinely used in in vitro transcription studies to initiate RNA synthesis.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Guneet Walia et al.
PloS one, 6(1), e15228-e15228 (2011-01-26)
Dephosphocoenzyme A kinase performs the transfer of the γ-phosphate of ATP to dephosphocoenzyme A, catalyzing the last step of coenzyme A biosynthesis. This enzyme belongs to the P-loop-containing NTP hydrolase superfamily, all members of which posses a three domain topology
CapZyme-Seq Comprehensively Defines Promoter-Sequence Determinants for RNA 5? Capping with NAD+
Vvedenskaya IO, et al.
Molecular Cell, 70(3), 553-564 (2018)
L Luo et al.
Biochemistry, 40(51), 15684-15692 (2001-12-19)
4-Chlorobenzoyl-coenzyme A (4-CBA-CoA) dehalogenase catalyzes the hydrolytic dehalogenation of 4-CBA-CoA to 4-hydroxybenzoyl-CoA (4-HBA-CoA) via a multistep mechanism involving initial attack of Asp145 on C(4) of the substrate benzoyl ring to form a Meisenheimer intermediate (EMc), followed by expulsion of the
Efficient incorporation of CoA, NAD and FAD into RNA by in vitro transcription
Huang F
Nucleic Acids Research, 31(3), e8-e8 (2003)
A Geerlof et al.
The Journal of biological chemistry, 274(38), 27105-27111 (1999-09-10)
Phosphopantetheine adenylyltransferase (PPAT) catalyzes the penultimate step in coenzyme A (CoA) biosynthesis: the reversible adenylation of 4'-phosphopantetheine yielding 3'-dephospho-CoA and pyrophosphate. Wild-type PPAT from Escherichia coli was purified to homogeneity. N-terminal sequence analysis revealed that the enzyme is encoded by

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