The MSF file starts with some header information. The following lines are a list of sequence names. Only one name per line is allowed where each of the sequence names are preceded by the qualifier "Name:". A line starting with two slashes "//" indicates the end of the name list. The sequence lines start with the sequence name followed by at least a space " " and 50 amino acids or bases of the sequence. Each block of 10 elements is separated by a space.

PileUp
MSF: 417 Type: P Check: 6732 ..
Name: CXCR3_MOUSE oo Len: 417 Check: 5453 Weight: 0.0
Name: BLR_HUMAN oo Len: 417 Check: 8501 Weight: 10.0
//
CXCR3_MOUSE .......... .......... ......LENS TSPYDYGENE SD.......F
BLR_HUMAN .......... .......... ......LENL EDLF.WELDR LD......NY