介紹
STAT1同源二聚體參與Ⅱ型幹擾素（Interferon-gamma）引發的信号通路，進入細胞核後會結合到啟動子上的幹擾素γ激活序列（Interferon-gamma activated sequence，GAS），激活IFN誘導的早期基因表達。在Ⅰ型幹擾素（interferon alpha/beta）激活的信号通路，STAT1-STAT2異源二聚體與IRF9（interferon response factor 9）結合形成ISGF3（interferon stimulated gene factor 3）複合物，并結合到啟動子的ISRE結合區，誘導下遊基因表達。
舉例
在計算機語言中
函數名：stat()
功能：得到文件的信息，将其保存在buf結構中，buf的地址以參數形式傳遞給stat。
用法：int _stat(const char *path,struct _stat *buffer)
參數:
const char *path：文件名或者目錄名
struct _stat *buffer:結構體對象地址
返回值：返回-1表示失敗。
輸出結果:
File size：732
Drive：C:
Time modified：Thu Feb 07 14:39:36 2002。
命令
stat是linux中經常被忽略的一個命令，常被用來顯示文件的詳細信息，請注意，這個命令是區别于ls命令的，下面是Linux中--help的幫助内容：
stat - display file or file system status
stat [OPTION]... FILE...
DESCRIPTION
Display file or file system status.
-L, --dereference
follow links
-f, --file-system
display file system status instead of file status
-c --format=FORMAT
use the specified FORMAT instead of the default; output a new‐
line after each use of FORMAT
--printf=FORMAT
like --format, but interpret backslash escapes, and do not out‐
put a mandatory trailing newline. If you want a newline,
include n in FORMAT
-t, --terse
print the information in terse form
--help display this help and exit
--version
output version information and exit
The valid format sequences for files (without --file-system):
%a Access rights in octal
%A Access rights in human readable form
%b Number of blocks allocated (see %B)
%B The size in bytes of each block reported by %b
%C SELinux security context string
%d Device number in decimal
%D Device number in hex
%f Raw mode in hex
%F File type
%g Group ID of owner
%G Group name of owner
%h Number of hard links
%i Inode number
%n File name
%N Quoted file name with dereference if symbolic link
%o I/O block size
%s Total size, in bytes
%t Major device type in hex
%T Minor device type in hex
%u User ID of owner
%U User name of owner
%x Time of last access
%X Time of last access as seconds since Epoch
%y Time of last modification
%Y Time of last modification as seconds since Epoch
%z Time of last change
%Z Time of last change as seconds since Epoch
Valid format sequences for file systems:
%a Free blocks available to non-superuser
%b Total data blocks in file system
%c Total file nodes in file system
%d Free file nodes in file system
%f Free blocks in file system
等。
PHP語言
說明
array stat( string filename)
獲取由filename指定的文件的統計信息。如果filename是符号連接，則統計信息是關于被連接文件本身的，而不是符号連接。lstat()和 stat()相同，隻除了它會返回符号連接的狀态。
如果出錯，stat()返回FALSE，并且發出一條警告。
返回一個數組包含有文件的統計信息，該數組具有以下列出的單元，數組下标從零開始。除了數字索引之外自PHP4.0.6起還可以通過關聯索引來訪問。
