Table 2.

Chromosomal localization of human semaphorin, neuropilin, and plexin genes.

	semaphorin
	class 3	class 4	class 5	class 6	class 7
A	7p12.1	1q22	5p15.2	5q23.1	15q22.3-q23
B	3p21.3	15q25	3q21.1	19p13.3
C	7q21-q31	2q11.2		1q21.2
D	7q21.11	9q22-q31		15q21.1
E	7q21.11	?
F	3p21.3	2p13.1
G	3p21.1	10q24.31
	plexin				neuropilin
	class A	class B	class C	class D
1	3q21.2	3p21.31	12q23.3	3q21.3	10p12
2	1q32.2	22q13.33			2q33.3
3	Xq28	Xq28
4	7q32.3