Normal Function. The TFAP2B gene provides instructions for making a protein called transcription factor AP-2Î². A transcription factor is a protein that attaches (binds) to specific regions of DNA and helps control the activity of particular genes. Transcription factor AP-2Î² is one of a group of related proteins called AP-2 transcription factors.
For other uses, see Chicago (disambiguation). Chicago (/Êáµ»ËkÉËÉ¡oÊ/ or /Êáµ»ËkÉËÉ¡oÊ/), officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is the most populous city in the state of Illinois, and the Midwestern United States. It is the county seat of Cook County.
The estimated population within the city limits for 2016 is 10.29 million. The population of Seoul in 2016 is estimated at 10.29 million, although this is just the population of the Special City, which has a density of about 17,000 people per square kilometer (45,000/square mile). The sprawling metropolitan area is much larger at 25.6 million.