--- title: "Meaning & Key Takeaway of: How does this work? Rodents produce…" description: "\"“How does this work? Rodents produce pheromonal odors with individual signatures, derived from genes called the major histocompatibility complex (MHC)...." image: "https://sms4smile.com/quotes/i/f30/robert-m-sapolsky-1166_immune-system_how-does-this-work-rodents-produce-phero_1750122.png" --- # How does this work? Rodents produce pheromonal odors with… ![“How does this work? Rodents produce pheromonal odors with individual signatures, derived from genes called the major histocompatibility complex (MHC). This is a super variable gene cluster that produces unique proteins that form a signature for an individual. This was first studied by…” quote by Robert M. Sapolsky](https://sms4smile.com/quotes/i/f30/robert-m-sapolsky-1166_immune-system_how-does-this-work-rodents-produce-phero_1750122.png) [Download](https://sms4smile.com/quotes/i/f30/robert-m-sapolsky-1166_immune-system_how-does-this-work-rodents-produce-phero_1750122.png) [Open image](https://sms4smile.com/quotes/i/f30/robert-m-sapolsky-1166_immune-system_how-does-this-work-rodents-produce-phero_1750122.png) > ““How does this work? Rodents produce pheromonal odors with individual signatures, derived from genes called the major histocompatibility complex (MHC). This is a super variable gene cluster that produces unique proteins that form a signature for an individual. This was first studied by immunologists. What does the immune system do? It differentiates between you and invaders—“self” and “nonself”—and attacks the latter. All your cells carry your unique MHC-derived protein, and surveillance immune cells attack any cell lacking this protein password.”” [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The quote explains how rodents use MHC‑derived scent signatures for individual identification, linking it to the immune system’s self‑nonself discrimination. **In simple terms:** Animals identify each other by unique chemical cues tied to immune genes. Key Takeaway Recognize the role of genetics in social signaling. Themes biology immunology behavior communication Mood curious analytical Type scientific educational When to use this quote - wildlife research - lab studies on scent - human social neuroscience - medical diagnostics Key Concepts MHC diversity self‑nonself discrimination chemical signaling Questions to Reflect On - How do genetic markers influence social interactions? - Can this knowledge improve transplant compatibility? A Different Perspective The mechanism may not directly translate to human social cues, which are more complex. ★ ★ ★ ★ ★ No ratings yet [Immune system](https://sms4smile.com/quotes/about/immune-system/) ## Related quotes > [“Stress can be bad for you. We no longer die of smallpox or the plague and instead die of stress-related diseases of lifestyle, like…](https://sms4smile.com/quotes/robert-m-sapolsky/stress-can-be-bad-for-you-we-no-longer-die-of-smallpox-or-the-plague/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [Think about old people; think about young people, those with immune system problems. 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To listen to someone else's personal garbage with the…](https://sms4smile.com/quotes/doug-rose/a-great-friend-can-act-like-a-trash-can-with-a-hole-in-the-bottom-to/) [Doug Rose](https://sms4smile.com/quotes/author/doug-rose/) > [The first year I was sober was probably the worst year of my life. My immune system was screwed. I completely isolated myself. I…](https://sms4smile.com/quotes/corey-taylor/the-first-year-i-was-sober-was-probably-the-worst-year-of-my-life-my/) [Corey Taylor](https://sms4smile.com/quotes/author/corey-taylor/) > [It is astounding how much the immune system is strengthened by reducing daily mental stress levels with either visualization or meditation. 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Sapolsky > [“Secure-attachment 7Rs show more generosity than average. Thus 7R has something to do with generosity—but its effect is entirely context dependent.”](https://sms4smile.com/quotes/robert-m-sapolsky/secure-attachment-7rs-show-more-generosity-than-average-thus-7r-has/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [But if you get chronically, psychosocially stressed, you're going to compromise your health. So, essentially, we've evolved to be smart enough to make ourselves…](https://sms4smile.com/quotes/robert-m-sapolsky/but-if-you-get-chronically-psychosocially-stressed-you-re-going-to/) [Robert M. 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Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [“Most broadly, the PFC chooses between conflicting options—Coke or Pepsi; blurting out what you really think or restraining yourself; pulling the trigger or not.…](https://sms4smile.com/quotes/robert-m-sapolsky/most-broadly-the-pfc-chooses-between-conflicting-options-coke-or/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [“One stretch of the gene is repeated a variable number of times, and the version with seven repeats (the “7R” form) produces a receptor…](https://sms4smile.com/quotes/robert-m-sapolsky/one-stretch-of-the-gene-is-repeated-a-variable-number-of-times-and/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [“some people always get more than their share of equality than others”](https://sms4smile.com/quotes/robert-m-sapolsky/some-people-always-get-more-than-their-share-of-equality-than-others/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) > [It's probably even the case that if you stoked up some Buddhist monks with tons of testosterone, they'd become wildly competitive as to who…](https://sms4smile.com/quotes/robert-m-sapolsky/it-s-probably-even-the-case-that-if-you-stoked-up-some-buddhist-monks/) [Robert M. Sapolsky](https://sms4smile.com/quotes/author/robert-m-sapolsky/) [Explore all 280 Robert M. Sapolsky quotes ](https://sms4smile.com/quotes/author/robert-m-sapolsky/) ## More Immune system quotes > [ “i believe \[images\] are the soul's immune system and transit system.” ](https://sms4smile.com/quotes/lynda-barry/i-believe-images-are-the-soul-s-immune-system-and-transit-system/) [Lynda Barry](https://sms4smile.com/quotes/author/lynda-barry/) > [Thankfully, I found a doctor at Presbyterian Hospital in New York, Scott Hammer, who diagnosed my chronic fatigue as the Epstein-Barr virus, and the…](https://sms4smile.com/quotes/tucker-halpern/thankfully-i-found-a-doctor-at-presbyterian-hospital-in-new-york/) [Tucker Halpern](https://sms4smile.com/quotes/author/tucker-halpern/) > [“Chamomile- Potent Medicine Pretty Flowers!  This flower has many uses including digestive aid, ulcer healing/prevention, boosts immune system, tranquilizer, soothes menstrual cramps and to…](https://sms4smile.com/quotes/stephanie-stuart/chamomile-potent-medicine-pretty-flowers-this-flower-has-many-uses/) Stephanie Stuart > [It is astounding how much the immune system is strengthened by reducing daily mental stress levels with either visualization or meditation. The other great…](https://sms4smile.com/quotes/bernie-siegel/it-is-astounding-how-much-the-immune-system-is-strengthened-by/) [Bernie Siegel](https://sms4smile.com/quotes/author/bernie-siegel/) > [The first year I was sober was probably the worst year of my life. My immune system was screwed. I completely isolated myself. I…](https://sms4smile.com/quotes/corey-taylor/the-first-year-i-was-sober-was-probably-the-worst-year-of-my-life-my/) [Corey Taylor](https://sms4smile.com/quotes/author/corey-taylor/) > [“A great friend can act like a trash can with a hole in the bottom. 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After conception, the tiny embryo infiltrates…](https://sms4smile.com/quotes/anonymous/saying-so-might-creep-expectant-mothers-out-but-you-can-make-a-good/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [“Optimal functioning of the immune system, it turns out, is dependent upon feeling good.”](https://sms4smile.com/quotes/marcey-shapiro/optimal-functioning-of-the-immune-system-it-turns-out-is-dependent/) [Marcey Shapiro](https://sms4smile.com/quotes/author/marcey-shapiro/) > [“Our immune system is evolving through trials of use in fighting illnesses and the bombardment of our modern world toxins and that this evolution…](https://sms4smile.com/quotes/martha-char-love/our-immune-system-is-evolving-through-trials-of-use-in-fighting/) [Martha Char Love](https://sms4smile.com/quotes/author/martha-char-love/) > [Too many multi-vitamins are packaged as one size fits all, but you should be more specific about what you need. When I was competing…](https://sms4smile.com/quotes/anton-du-beke/too-many-multi-vitamins-are-packaged-as-one-size-fits-all-but-you/) [Anton du Beke](https://sms4smile.com/quotes/author/anton-du-beke/) > [Think about old people; think about young people, those with immune system problems. They can't really protect themselves well against the flu, so by…](https://sms4smile.com/quotes/mikhail-varshavski/think-about-old-people-think-about-young-people-those-with-immune/) [Mikhail Varshavski](https://sms4smile.com/quotes/author/mikhail-varshavski/) > [I have read many studies out of the Karolinska Institute in Sweden and they demonstrated that Vitamin E, Co-Q-10, and Fish Oil could protect…](https://sms4smile.com/quotes/bill-toomey/i-have-read-many-studies-out-of-the-karolinska-institute-in-sweden/) [Bill Toomey](https://sms4smile.com/quotes/author/bill-toomey/) [Browse all 313 Immune system quotes ](https://sms4smile.com/quotes/about/immune-system/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "“How does this work? Rodents produce pheromonal odors with individual signatures, derived from genes called the major histocompatibility complex (MHC). 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