1. Know Your Neighbors: Three Phenotypes in Null Mutants of the Myogenic bHLH Gene MRF4 
E.N Olson, H.-H Arnold, P.W.J Rigby, B.J Wold 
Cell 
Volume 85, Issue 1, Pages 1-4 (April 1996)
DOI: /S (00)

2. Figure 1 Structure of the Mouse MRF4/Myf5 Locus
Sequences deleted in each knockout allele are indicated above the MRF4 gene. Arrows indicate the direction of transcription from the inserted PGK-neo selection cassette for each allele. Restriction sites define boundaries of deletions or expression constructs: S, SalI; K, KpnI; P, PstI; St, StuI; B, BamHI; Sc, ScaI.
Cell  , 1-4DOI: ( /S (00) )