**Function**

PARP1 works:

- By modifying nuclear proteins by poly ADP-ribosylation.
- In conjunction with BRCA, which acts on double strands; members of the PARP family act on single strands; or, when BRCA fails, PARP takes over those jobs as well.

PARP1 is involved in:

- Differentiation, proliferation, and tumor transformation
- Normal or abnormal recovery from DNA damage
- May be the site of mutation in Fanconi anemia
- May participate in the pathophysiology of type I diabetes.

PARP1 is activated by:

- Helicobacter pylori in the development and proliferation of gastric cancer.

Read more about this topic: PARP1

### Other articles related to "function":

... and integration are inverse operations if a continuous

**function**is first integrated and then differentiated, the original

**function**is retrieved ... to compute integrals by using an antiderivative of the

**function**to be integrated ...

... In general, an integral over a set E of a

**function**f is written Here x need not be a real number, but can be another suitable quantity, for instance, a vector ... Just as the definite integral of a positive

**function**of one variable represents the area of the region between the graph of the

**function**and the x-axis, the double integral of a positive

**function**of two variables ... same volume can be obtained via the triple integral — the integral of a

**function**in three variables — of the constant

**function**f(x, y, z) = 1 over the above ...

### Famous quotes containing the word function:

“The *function* of comedy is to dispel ... unconsciousness by turning the searchlight of the keenest moral and intellectual analysis right on to it.”

—George Bernard Shaw (1856–1950)

“Advocating the mere tolerance of difference between women is the grossest reformism. It is a total denial of the creative *function* of difference in our lives. Difference must be not merely tolerated, but seen as a fund of necessary polarities between which our creativity can spark like a dialectic.”

—Audre Lorde (1934–1992)

“The *function* of literature, through all its mutations, has been to make us aware of the particularity of selves, and the high authority of the self in its quarrel with its society and its culture. Literature is in that sense subversive.”

—Lionel Trilling (1905–1975)