Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Expression patterns of SEPT7 and SEPT4 in human sperm. a, Immunofluorescence assay (IFA) showed that SEPT4 (red) was localized predominantly at the annulus region. b, Strong SEPT7 (green) signal at the annulus and faint signal at the head. d, SEPT4 and SEPT7 overlapped completely at the annulus. c, The nucleus was stained with DAPI (blue)
