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. 2021 Sep 28;27(11):gaab062. doi: 10.1093/molehr/gaab062

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© The Author(s) 2021. Published by Oxford University Press on behalf of European Society of Human Reproduction and Embryology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 3. — Classification of the human sperm tail proteins. (A) Gene Ontology of the 3406 proteins based on their biological process. (B) Gene ontology of the same 3406 proteins based on their subcellular localization. (C) String network of the 251 identified centrosomal proteins. (D) Comparison of the pericentriolar material (PCM) proteins only identified in this work (19.1%—pink fraction) to all the previously published human sperm proteomic data (green fraction). (E–I) Antibodies against five of the centrosomal proteins identified in our proteomic analysis and co-stained with tubulin to visualize the centrioles. Nek9 (E), Poc1B (F) and WDR62 (G) co-localize with the proximal and distal centriole. Pontin (H) and Reptin (I) have a diffuse localization around the basal body. Scale: 3 μm, insets: 1 μm. N = 2 different sperm samples.