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0.5

Overview page. Subjects: Chemistry.

or

symbol (in enzyme kinetics) for the value of the concentration of a substrate, A, in mol dm−3, at which the velocity of the reaction, v, is...

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50

Overview page. Subjects: Chemistry.

symbol for the molar concentration of an agonist that produces 50% of the maximal possible effect of that agonist. Other percentage values ([A]20, [A]40, etc.) can be...

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2′-5′A

Overview page. Subjects: Chemistry.

symbol for any member of a series of oligonucleotides of the general formula p a A[2′p5′A] n , where p and A are...

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A

Overview page. Subjects: Chemistry.

symbol for

1 acid‐catalysed (of a reaction mechanism).

2 a residue of the α‐amino acid l‐alanine (alternative to Ala).

null...

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a

Overview page. Subjects: Chemistry.

1 abbr. for adsorbed.

2 symbol for atto+ (SI prefix denoting 10−18).

3 axial.

4 year.

null...

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a

Overview page. Subjects: Chemistry.

symbol for

1 absorption coefficient.

2 acceleration (in vector equations it is printed in bold italic (a).

null...

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A

Overview page. Subjects: Chemistry.

symbol for

1 absorbance.

2 activity (def. 2).

3 affinity.

4 Helmholtz function.

null...

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Å

Overview page. Subjects: Chemistry.

symbol for ångström (unit of length equal to 10−10 m).

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(A + T)/(G + C) ratio

Overview page. Subjects: Chemistry.

The ratio of the sum of the adenine plus thymine bases to the sum of the guanine plus cytosine bases in a DNA molecule or preparation. The ratio is to ...

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A 1 cell

Overview page. Subjects: Chemistry.

(formerly) an alternative name for D cell.

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A 10S galectin-3–U1 snRNP complex assembles into active spliceosomes

Kevin C. Haudek, Patricia G. Voss, John L. Wang and Ronald J. Patterson.

in Nucleic Acids Research

July 2016; p ublished online April 2016 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 4810 words.

In previous studies, we reported that fractionation of HeLa cell nuclear extracts on glycerol gradients revealed an endogenous ∼10S particle that contained galectin-3 and U1 snRNP and this...

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A 16S rRNA–tRNA product containing a nucleotide phototrimer and specific for tRNA in the P/E hybrid state in the Escherichia coli ribosome

Wayne Huggins and Paul Wollenzien.

in Nucleic Acids Research

January 2004; p ublished online January 2004 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 6644 words.

Ribosome complexes containing deacyl-[math] or biotinylvalyl-[math] and an mRNA analog have been irradiated with wavelengths specific for activation of the cmo5U nucleoside at position 34 in...

A 1.8 kb Alternative Transcript from the Human Epidermal Growth Factor Receptor Gene Encodes a Truncated form of the Receptor

Jill L. Reiter and Nita J. Maihle.

in Nucleic Acids Research

October 1996; p ublished online October 1996 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 4492 words.

The epidermal growth factor receptor (EGFR) is encoded by the c-erbB1 proto-oncogene and plays an important role in the control of cell growth and differentiation. To study the potential...

A 2 bu

Overview page. Subjects: Chemistry.

or

symbol for a residue of the α, γ‐diamino acid l‐α, γ‐diaminobutyric acid, l‐2,4‐diaminobutanoic acid.

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A 2 pm

Overview page. Subjects: Chemistry.

or

symbol for the di(α‐amino acid) α,ɛ‐diaminopimelic acid, 2,6‐diaminoheptanedioic acid.

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A 2 pr

Overview page. Subjects: Chemistry.

or

symbol for a residue of the α,β‐diamino acid l‐α,β‐diaminopropionic acid; l‐2,3‐diaminopropanoic acid.

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A 21‐amino acid peptide from the cysteine cluster II of the family D DNA polymerase from Pyrococcus horikoshii stimulates its nuclease activity which is Mre11‐like and prefers manganese ion as the cofactor

Yulong Shen, Xiao‐Feng Tang, Hideshi Yokoyama, Eriko Matsui and Ikuo Matsui.

in Nucleic Acids Research

January 2004; p ublished online January 2004 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 7265 words.

Family D DNA polymerase (PolD) is a new type of DNA polymerase possessing polymerization and 3′–5′ exonuclease activities. Here we report the characterization of the nuclease activity of...

A 2,2′-bipyridine ligand for incorporation into oligodeoxynucleotides: Synthesis, stability and fluorescence properties of ruthenium—DNA complexes

Kristin Wiederholt and Larry W. McLaughlin.

in Nucleic Acids Research

January 1999; p ublished online January 1999 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 4768 words.

A non-nucleoside linker based upon the ligand 2,2′-bipyridine and ethylene glycol is prepared and placed into the backbone of a number of oligonucleo-tides. The bipyridine ligand is reacted...

A 36-Pound Weight Loss and Debilitating Painful Rash in a 42-Year-Old Male

Jason A Bennett, Ted Krafczyk, John G. Thomas and Patricia M. Canfield.

in Laboratory Medicine

August 2004; p ublished online September 2015 .

Journal Article. Subjects: Medical Microbiology and Virology; Chemistry; Microbiology. 0 words.

A 39 Amino Acid Fragment of the Cell Cycle Regulator p21 Is Sufficient to Bind PCNA and Partially Inhibit DNA Replication in vivo

Junjie Chen, Richard Peters, Partha Saha, Patrick Lee, Annie Theodoras, Michele Pagano, Gerhard Wagner and Anindya Dutta.

in Nucleic Acids Research

May 1996; p ublished online May 1996 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 4650 words.

The cell cycle regulator p21 interacts with and inhibits the DNA replication and repair factor proliferating cell nuclear antigen (PCNA). We have defined a 39 amino acid fragment of p21...