Binding to a DNA segment shaped like a Y. This shape occurs when DNA contains a region of paired double-stranded DNA on one end and a region of unpaired DNA strands on the opposite end.

Binding to a DNA segment containing a loop. A loop occurs when DNA contains a large insertion or deletion that causes a region of unpaired single-stranded DNA to loop out, while the rest of the DNA is in a paired double-stranded configuration.

Binding to a double-stranded DNA region containing an insertion or a deletion.

Binding to a DNA segment containing the open form of a four-way junction, also known as a Holliday junction, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices. The open form of a four-way junction can be diagrammed without any of the strands crossing over.

Binding to a DNA segment containing four-way junctions, also known as Holliday junctions, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices.

Any process that modulates the frequency, rate or extent of isotype switching to IgG isotypes.

Any process that modulates the frequency, rate or extent of isotype switching.

Binding to a DNA segment containing the crossed form of a four-way junction, also known as a Holliday junction, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices. The crossed form of a four-way junction cannot be diagrammed without any of the strands crossing over, and instead contains a single crossover between two of the strands.

Any process that stops, prevents, or reduces the frequency, rate or extent of isotype switching to IgG isotypes.

Any process that stops, prevents, or reduces the frequency, rate or extent of isotype switching.

Any process that stops, prevents, or reduces the frequency, rate or extent of isotype switching to IgD isotypes.

Any process that modulates the frequency, rate or extent of isotype switching to IgD isotypes.

Any process that activates or increases the frequency, rate or extent of isotype switching to IgD isotypes.

Any process that activates or increases the frequency, rate or extent of isotype switching.

Binding to a protein or protein complex in the presence of calcium.

Catalysis of the reaction: NH3 + 2 H2O + 6 oxidized ferredoxin = nitrite + 6 reduced ferredoxin + 7 H+.

Catalysis of an oxidation-reduction (redox) reaction in which a nitrogenous group, excluding NH and NH2 groups, acts as a hydrogen or electron donor and reduces an iron-sulfur protein.

Catalysis of the reaction: nitrite + acceptor = product(s) of nitrate reduction + reduced acceptor.

Any process that activates or increases the frequency, rate or extent of isotype switching to IgG isotypes.