Probe:	mdkk-1 cDNA
Probe preparation:	Antisense RNA

Structure	Level	Pattern	Image	Note
TS9: embryo mesoderm	Present	Regionally restricted	2h	Expression is present in a subpopulation of cells that will form the extraembryonic and head-fold mesoderm. These cells are adjacent to the embryonic/extraembryonic junction.

Structure	Level	Pattern	Image	Note
TS10: embryo mesoderm	Present	Regionally restricted	2i	Expression is restricted to head mesoderm.

Structure	Level	Pattern	Image	Note
TS10: embryo mesoderm	Present	Regionally restricted	2j	Expression is restricted to head mesoderm.
TS10: primitive streak	Absent		2j

Structure	Level	Pattern	Image	Note
TS12: embryo endoderm	Strong	Regionally restricted	2k	Expression is present in foregut endoderm cells adjacent to the head fold.
TS12: head mesenchyme	Present	Regionally restricted	2k	Only a few head mesodermal cells continue to express.
TS12: future prosencephalon	Present	Regionally restricted	2k	Expression is present in a small rostral domain in the diencephalon.
TS12: future spinal cord	Present		2k
TS12: embryo mesenchyme	Weak	Regionally restricted	2k	Expression is present in posterior primitive streak mesoderm.

Structure	Level	Pattern	Image	Note
TS13: somite	Present			Expression is present in developing somites.