Atlas One · Host Biology · Scale 07 — System

Noonan Syndrome

Noonan syndrome is caused by germline RAS-MAPK pathway mutations (PTPN11 ~50%, SOS1, RAF1, KRAS, LZTR1, others); short stature, pulmonary stenosis, hypertrophic cardiomyopathy, and facial dysmorphia; elevated JMML/leukemia risk; MEK inhibitors in clinical trials.

Also known as: Noonan syndrome, Noonan's syndrome, PTPN11 Noonan, NS Noonan, RASopathy Noonan, Noonan syndrome heart, Noonan syndrome leukemia, Noonan syndrome cardiomyopathy, Noonan with lentigines, LEOPARD syndrome

Scale 07 — SystemScale
draftStatus
2026-06-07Last Reviewed
This is an auto-generated stub page built from atlas entry frontmatter. A richer hand-crafted page is planned. See the atlas source for the full entry including detailed body sections.
noonan-syndrome

Noonan Syndrome

Noonan syndrome is caused by germline RAS-MAPK pathway mutations (PTPN11 ~50%, SOS1, RAF1, KRAS, LZTR1, others); short stature, pulmonary stenosis, hypertrophic cardiomyopathy, and facial dysmorphia; elevated JMML/leukemia risk; MEK inhibitors in clinical trials.

Entry Metadata

FieldValue
IDnoonan-syndrome
NameNoonan Syndrome
Statusdraft
Last reviewed2026-06-07
Atlas01-human
Scale07-system

Cross-Atlas Connections

connects-toPtpn11 connects-toLztr1 connects-toKras connects-toNf1 connects-toHeart connects-toErk1 2 connects-toSchwannomatosis connects-toMarfan Syndrome connects-toNeurofibromatosis Type 1 connects-toLymphatic System connects-toCardiomyocyte connects-toPlatelet connects-toRhabdomyosarcoma connects-toNeuroblastoma connects-toVon Willebrand Factor connects-toAml connects-toCardiovascular System connects-toGrowth Hormone connects-toOsteoporosis connects-toNervous System connects-toMusculoskeletal System connects-toReproductive System connects-toIgf 1 connects-toAll connects-toEye connects-toBraf connects-toBone Marrow connects-toMtor connects-toAkt connects-toEndothelial Cell connects-toBrain connects-toKidney connects-toCalcium connects-toMacrophage connects-toPhoton connects-toSkin connects-toSpleen connects-toLung connects-toSmall Intestine connects-toElectron connects-toAntibody connects-toErythrocyte connects-toLiver connects-toAttention Deficit Hyperactivity Disorder connects-toCmml connects-toOsteoclast connects-toHeart Failure connects-toThyroid connects-toAutism Spectrum Disorder connects-toSpred1 connects-toPulmonary Arterial Hypertension connects-toWilms Tumor connects-toStat3 connects-toNf Kb connects-toMajor Depressive Disorder connects-toStroke connects-toCkd connects-toSepsis connects-toEndocrine System connects-toIntegumentary System connects-toGeneralized Anxiety Disorder connects-toDigestive System connects-toRespiratory System connects-toRenal System connects-toImmune System connects-toStaphylococcus Aureus connects-toBeta Blockers connects-toTargeted Therapy connects-toCarney Complex connects-toTuberous Sclerosis Complex connects-toCancer Chemotherapy connects-toEndocardium connects-toCardiac Conduction System connects-toMyocardium connects-toCortical Bone connects-toHemophilia A connects-toMyeloproliferative Neoplasms connects-toAlveolus connects-toPlacenta connects-toTroponin Complex connects-toBnp connects-toGist connects-toCalcineurin connects-toVegf connects-toCyclin D1 connects-toMyc connects-toPik3Ca connects-toPdgf connects-toGsk 3B connects-toSerca2A connects-toAngiopoietin connects-toTgf Beta connects-toPten connects-toBdnf connects-toTestosterone connects-toRankl connects-toCalcium connects-toNotch connects-toConnexin43 connects-toE2F1 connects-toJak1 2 connects-toRyr2 connects-toRb1 connects-toGalectin 3 connects-toSmad4 connects-toCdkn2A connects-toStat1 connects-toCgas Sting connects-toFoxo connects-toCdk4 6 connects-toS100A8 A9 connects-toHif 1Alpha connects-toSrc Kinase connects-toDnmt3A connects-toAutophagy connects-toAmpk connects-toCcr5 connects-toMdm2 connects-toCxcl12 connects-toIl 6 connects-toIl 33 connects-toPhospholamban connects-toSclerostin connects-toThyroid Hormones connects-toBeta1 Adrenergic Receptor connects-toAngiotensin Ii connects-toMhc Class Ii connects-toHemoglobin connects-toAldosterone connects-toNitric Oxide connects-toFibrinogen connects-toRenin connects-toMagnesium connects-toPotassium connects-toCortical Bone connects-toBrain connects-toLeptin connects-toIl 4 connects-toIl 13 connects-toIl 5 connects-toAdiponectin connects-toResistin connects-toIfn Gamma connects-toIl 12 connects-toType I Interferon connects-toIl 17A connects-toIl 23 connects-toIge connects-toT Helper Cell connects-toMast Cell connects-toComplement C3 connects-toPeriostin connects-toErythropoietin connects-toHistamine connects-toTslp connects-toBradykinin connects-toC1 Esterase Inhibitor connects-toMelatonin connects-toSerotonin connects-toProlactin connects-toOxytocin connects-toVasopressin connects-toSelenium connects-toIodine connects-toSodium connects-toCopper connects-toZinc connects-toPhosphorus connects-toIron connects-toCarbon connects-toChloride connects-toNitrogen connects-toHydrogen connects-toOxygen connects-toSulfur connects-toPd 1 connects-toGlp 1 connects-toWnt Beta Catenin connects-toIl 2 connects-toFibronectin connects-toActivin A connects-toCgrp connects-toCalcitonin connects-toSubstance P connects-toInsulin Receptor connects-toAndrogen Receptor connects-toNorepinephrine connects-toAdrenomedullin connects-toOsteopontin connects-toFgfr connects-toEpinephrine connects-toMyostatin connects-toCortisol