Atlas of X-Linked Intellectual Disability Syndromes
3rd Edition
Published on 4. June 2026
Book
Hardback
520 pages
978-0-19-780902-0 (ISBN)
Description
Atlas of X-Linked Intellectual Disability Syndromes, 3rd Edition is a comprehensive reference for clinicians, laboratory geneticists, and researchers working to diagnose and understand X-linked intellectual disability (XLID). This updated edition presents a concise yet thorough overview of all known XLID syndromes, incorporating the latest clinical findings and gene discoveries.
Each syndrome entry includes hallmark somatic features, developmental and neurological characteristics, patterns of female expression, and the causative gene if known. A differential diagnosis matrix that follows each entry helps narrow diagnostic possibilities and guides targeted genetic testing. Appendices group syndromes by shared clinical features, offering a practical tool for comparison.
New content in this edition addresses duplications within the X chromosome involving XLID genes, XLID-associated Congenital Disorders of Glycosylation, skewed X-inactivation in female carriers, and genes that escape inactivation. The XLID Syndrome Atlas remains an essential tool for navigating the evolving genetics of intellectual disability.
Each syndrome entry includes hallmark somatic features, developmental and neurological characteristics, patterns of female expression, and the causative gene if known. A differential diagnosis matrix that follows each entry helps narrow diagnostic possibilities and guides targeted genetic testing. Appendices group syndromes by shared clinical features, offering a practical tool for comparison.
New content in this edition addresses duplications within the X chromosome involving XLID genes, XLID-associated Congenital Disorders of Glycosylation, skewed X-inactivation in female carriers, and genes that escape inactivation. The XLID Syndrome Atlas remains an essential tool for navigating the evolving genetics of intellectual disability.
Reviews / Votes
This new 3rd Edition of the Atlas of X-Linked Intellectual Disability Syndromes is a markedly expanded version of the 2 previous editions. The format defines each entity and discusses clinical, neurological, neuropathological, and genetic expression, along with growth and development, clinical photos, and differential diagnosis in a pithy outline format with useful references. There are also many useful appendices, new information regarding methylation signatures (when available) to assist in resolving troublesome VUS findings encountered during gene sequencing, as well as various treatment options, which is a growing body of knowledge.John M Graham Jr MD, ScD
Clinical Genetics Consultant, Cedars-Sinai Medical Center, Emeritus Professor of Pediatrics, David Geffen Medical School at UCLA, Los Angeles CA The third edition of the Atlas of X-linked intellectual disability syndromes is a timely and needed update of the second edition of 2012. The Atlas continues to be an essential reference textbook for all those who are involved in the care of the intellectually disabled, particularly geneticists, pediatricians and child neurologists. It is a user-frindly, comprehensive source of information that facilitates the recognition of even very rare conditions and all that goes with it: exact determination of the recurrence risk, proper counseling, and treatment if available.
Giovanni Neri, MD
Emeritus Professor of Medical Genetics
Facolta di Medicina e Chirurgia
Universita Cattolica del S. Cuore
Roma, Italy
More details
Edition
3rd Revised edition
Language
English
Place of publication
New York
United States
Target group
Professional and scholarly
Edition type
Revised edition
Product notice
sewn/stitched
Cloth over boards
Dimensions
Height: 285 mm
Width: 222 mm
Thickness: 36 mm
Weight
1347 gr
ISBN-13
978-0-19-780902-0 (9780197809020)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Persons
Charles E. Schwartz, Ph.D - As research fellow at the Department of Haematology at University of Utah, Dr. Schwartz laid the groundwork for the discovery of both breast and colon cancer genes. He established the molecular genetics laboratory at the Greenwood Genetic Center in 1985. Until his retirement in May 2019, Dr. Schwartz's research interests focused on the causes of intellectual disabilities (ID) and autism. Besides identifying over 27 XLID genes, his group established abnormal tryptophan metabolism as one feature associated with ASD. He is currently an Adjunct Professor in the Department of Pediatrics and Human Development at Michigan State University, Grand Rapids.
Roger E. Stevenson, M.D. - In 1974, Dr. Stevenson left a faculty position at the University of Texas Medical School in Houston to return to his home state of South Carolina to establish the Greenwood Genetic Center. In its 50 years, the GGC has become the state's premier genetic institution with medical genetics training
programs, clinics, diagnostic laboratories, and research program. Stevenson's career has been focused on birth defects, intellectual disability, autism, and related disorders. He established the South Carolina Neural Tube Defect Surveillance and Prevention Program in 1992, and has collaborated with Charles Schwartz in Research on X-linked intellectual disabilities since 1985.
Tao Wang, M.D., Ph.D.- Dr. Wang is a pediatric and biochemical geneticist, and physician scientist in the McKusick-Nathans Department of Genetic Medicine at Johns Hopkins University School of Medicine. Dr. Wang's clinical and research interests center around understanding genetic basis and mechanism of developmental brain disorders including X-linked intellectual disability and autism, and inborn errors of metabolism including phenylketonuria and gyrate atrophy of the choroid and retina. In collaboration with Drs. Stevenson and Schwartz of Greenwood Genetic Center, Dr. Wang's research team has contributed to clinical,
genetic, and/or functional characterization of over 20 X-linked intellectual disability genes.
Roger E. Stevenson, M.D. - In 1974, Dr. Stevenson left a faculty position at the University of Texas Medical School in Houston to return to his home state of South Carolina to establish the Greenwood Genetic Center. In its 50 years, the GGC has become the state's premier genetic institution with medical genetics training
programs, clinics, diagnostic laboratories, and research program. Stevenson's career has been focused on birth defects, intellectual disability, autism, and related disorders. He established the South Carolina Neural Tube Defect Surveillance and Prevention Program in 1992, and has collaborated with Charles Schwartz in Research on X-linked intellectual disabilities since 1985.
Tao Wang, M.D., Ph.D.- Dr. Wang is a pediatric and biochemical geneticist, and physician scientist in the McKusick-Nathans Department of Genetic Medicine at Johns Hopkins University School of Medicine. Dr. Wang's clinical and research interests center around understanding genetic basis and mechanism of developmental brain disorders including X-linked intellectual disability and autism, and inborn errors of metabolism including phenylketonuria and gyrate atrophy of the choroid and retina. In collaboration with Drs. Stevenson and Schwartz of Greenwood Genetic Center, Dr. Wang's research team has contributed to clinical,
genetic, and/or functional characterization of over 20 X-linked intellectual disability genes.
Content
FOREWORD INTRODUCTION
AARSKOG SYNDROME
ABIDI SYNDROME ADRENOLEUKODYSTROPHY
AGENESIS OF THE CORPUS CALLOSUM, X-LINKED AHMAD SYNDROME AICARDI SYNDROME ALG13 CONGENITAL DISORDER OF GLYCOSYLATION
ALLAN-HERNDON-DUDLEY SYNDROME ALPHA-THALASSEMIA INTELLECTUAL DISABILITY (SEE ALSO ATRX-ASSOCIATED XLID) AP1S2-ASSOCIATED XLID
APAK ATAXIA-SPASTIC DIPLEGIA SYNDROME ARMFIELD SYNDROME ARTS SYNDROME ARX-ASSOCIATED XLID ATAXIA-DEAFNESS-DEMENTIA, X-LINKED ATAXIA-SEIZURES-HEARING LOSS
ATKIN-FLAITZ SYNDROME ATP6AP2 CONGENITAL DISORDER OF GLYCOSYLATION
ATRX-ASSOCIATED XLID BERGIA CARDIOMYOPATHY BERTINI SYNDROME BOERJESON-FORSSMAN-LEHMANN SYNDROME BRANCHIAL ARCH SYNDROME, X-LINKED C1GALT1C1 CHAPERONOPATHY
CANTU SYNDROME CARPENTER-WAZIRI SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) CEREBRO-CEREBELLO-COLOBOMA SYNDROME CEREBRO-OCULO-GENITAL SYNDROME CEREBRO-PALATO-CARDIAC SYNDROME (SEE ALSO RENPENNING SYNDROME) CHARCOT-MARIE-TOOTH NEUROPATHY, COWCHOCK VARIANT
CHASSAING-LACOMBE CHONDRODYSPLASIA CHRISTIAN SYNDROME CHRISTIANSON SYNDROME CHUDLEY-LOWRY SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) CK SYNDROME COFFIN-LOWRY SYNDROME CORNELIA DE LANGE SYNDROME 2
CORNELIA DE LANGE SYNDROME 5 CRANIOFACIOSKELETAL SYNDROME CREATINE TRANSPORTER DEFICIENCY DEAD/H-BOX-RELATED XLID
DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 85
DHSRX CONGENITAL DISORDER OF GLYCOSYLATION
DUCHENNE MUSCULAR DYSTROPHY DYSKERATOSIS CONGENITA EPILEPSY-INTELLECTUAL DISABILITY IN FEMALES FITZSIMMONS SYNDROME FLNA-ASSOCIATED XLID FRAGILE X SYNDROME GABRA3-RELATED XLID-SEIZURES
GALLOWAY-MOWAT SYNDROME 2 GIUFFRE-TSUKAHARA SYNDROME GLRA2-RELATED XLID GLYCEROL KINASE DEFICIENCY GOLABI-ITO-HALL SYNDROME: (SEE ALSO RENPENNING SYNDROME) GOLDBLATT SPASTIC PARAPLEGIA SYNDROME GOLTZ SYNDROME GPKOW-RELATED XLID
GRAHAM ANOPHTHALMIA SYNDROME GUSTAVSON SYNDROME HALL OROFACIAL SYNDROME HEREDITARY BULLOUS DYSTROPHY, X-LINKED HNRNPH2-RELATED XLID HOLMES-GANG SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) HOMFRAY SEIZURES-CONTRACTURES HUTCHINSON SYNDROME
HYDE-FORSTER SYNDROME HYDRANENCEPHALY WITH ABNORMAL GENITALIA (SEE ALSO ARX-ASSOCIATED XLID) HYDROCEPHALY-CEREBELLAR AGENESIS SYNDROME HYDROCEPHALY-MASA SPECTRUM HYPOPARATHYROIDISM, X-LINKED INCONTINENTIA PIGMENTI JUBERG-MARSIDI-BROOKS SYNDROME KABUKI SYNDROME 2
KANG SYNDROME KCND1-RELATED XLID
KDM5C-RELATED XLID
KEIPERT SYNDROME
LENZ MICROPHTHALMIA SYNDROME LESCH-NYHAN SYNDROME LINEAR SKIN DEFECTS-MULTIPLE ANOMALIES
LISSENCEPHALY AND ABNORMAL GENITALIA, X-LINKED (SEE ALSO ARX-ASSOCIATED XLID) LISSENCEPHALY, X-LINKED LOWE SYNDROME LUJAN SYNDROME MAGT1 CONGENITAL DISORDER OF GLYCOSYLATION
MARTIN-PROBST SYNDROME MED12-RELATED XLID
MEHMO SYNDROME MEND SYNDROME
MENKES SYNDROME MICROPHTHALMIA 2
MICROPHTHALMIA 13
MIDAS SYNDROME MILES-CARPENTER SYNDROME MOHR-TRANEBJAERG SYNDROME MONOAMINE OXIDASE-A DEFICIENCY MSL3-RELATED XLID
MUCOPOLYSACCHARIDOSIS IIA MULTIPLE CONGENITAL ANOMALIES-HYPOTONIA-SEIZURES SYNDROME 2 MYOTUBULAR MYOPATHY NAA10-ASSOCIATED XLID
N-ALPHA-ACETYLTRANSFERASE DEFICIENCY NANCE-HORAN SYNDROME
NEURODEGENERATION WITH BRAIN IRON ACCUMULATION 5
NEURODEVELOPMENTAL DISORDER WITH EPILEPSY AND HEMOCHROMATOSIS NKAP-RELATED XLID
NONO-RELATED XLID
NORRIE DISEASE O-GlcNAc TRANSFERASE DEFICIENCY
OGDEN SYNDROME (SEE ALSO NAA10-ASSOCIATED XLID)
OPITZ FG SYNDROME OPTIC ATROPHY, X-LINKED ORAL-FACIAL-DIGITAL SYNDROME I ORNITHINE TRANSCARBAMOYLASE DEFICIENCY OSTEOPATHIA STRIATA WITH CRANIAL SCLEROSIS
OTOPALATODIGITAL SYNDROME I (SEE ALSO FLNA-ASSOCIATED XLID) OTOPALATODIGITAL SYNDROME II (SEE ALSO FLNA-ASSOCIATED XLID) PAINE SYNDROME PALLISTER W SYNDROME PARTINGTON SYNDROME (SEE ALSO ARX-ASSOCIATED XLID) PELIZAEUS-MERZBACHER SYNDROME PERIVENTRICULAR NODULAR HETEROTOPIA (SEE ALSO FLNA-ASSOCIATED XLID) PETTIGREW SYNDROME PHOSPHOGLYCERATE KINASE DEFICIENCY PIGA-ASSOCIATED XLID
PLOTT SYNDROME PORTEOUS SYNDROME (SEE ALSO RENPENNING SYNDROME) PPM-X PRIETO SYNDROME PROUD SYNDROME (SEE ALSO ARX-ASSOCIATED XLID) PYRUVATE DEHYDROGENASE DEFICIENCY RAYMOND TYPE XLID
RENPENNING SYNDROME RETT SYNDROME RETT-LIKE SEIZURES-HYPOTONIA RITSCHER-SCHINZEL SYNDROME 2
RNF113A-RELATED XLID
SAY-MEYER SYNDROME SCHIMKE SYNDROME SH3KBP1-RELATED XLID
SHASHI SYNDROME SHRIMPTON SYNDROME SHUKLA-VERNON SYNDROME
SIMPSON-GOLABI-BEHMEL SYNDROME SLC35A2 CONGENITAL DISORDER OF GLYCOSYLATION SLITRK2-RELATED XLID
SMARCA1-RELATED XLID
SMITH-FINEMAN-MYERS SYNDROME SNYDER-ROBINSON SYNDROME SSR4 CONGENITAL DISORDER OF GLYCOSYLATION
STAG-RELATED HOLOPROSENCEPHALY STAG2-RELATED XLID
STOCCO DOS SANTOS SYNDROME STOLL SYNDROME SUTHERLAND-HAAN SYNDROME (SEE ALSO RENPENNING SYNDROME) TARP SYNDROME TCEAL1-RELATED XLID
TELECANTHUS-HYPOSPADIAS SYNDROME TURNER XLID (SEE ALSO AP1S2-ASSOCIATED XLID) URBAN SYNDROME
USP9X-RELATED XLID
VACTERL-HYDROCEPHALUS SYNDROME VASQUEZ SYNDROME WAISMAN-LAXOVA SYNDROME WARKANY SYNDROME WDR44 CILIOPATHY
WIEACKER-WOLFF SYNDROME WIEACKER-WOLFF SYNDROME, FEMALE RESTRICTED WILSON-TURNER SYNDROME XLID-ARCH FINGERPRINTS-HYPOTONIA SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) XLID-ATAXIA-APRAXIA XLID-ATAXIA-DEMENTIA XLID-ATAXIA-SEIZURES
XLID-BLINDNESS-SEIZURES-SPASTICITY XLID-BRAIN ANOMALIES-ATAXIA
XLID-CHOREOATHETOSIS XLID-CHOROIDEREMIA-ECTODERMAL DYSPLASIA XLID-CLEFT LIP/CLEFT PALATE XLID-EPILEPSY (XIDE) XLID-HYDROCEPHALY-BASAL GANGLIA CALCIFICATIONS (SEE ALSO AP1S2-ASSOCIATED XLID) XLID-HYPEREKPLEXIA-SEIZURES
XLID-HYPOGAMMAGLOBULINEMIA XLID-HYPOGONADISM-TREMOR XLID-HYPOSPADIAS XLID-HYPOTONIA-RECURRENT INFECTIONS XLID-INFANTILE SPASMS (SEE ALSO ARX-ASSOCIATED XLID) XLID-ISOLATED GROWTH HORMONE DEFICIENCY XLID-MACROCEPHALY XLID-MACROCEPHALY-MACROORCHIDISM XLID-MICROCEPHALY-TESTICULAR FAILURE XLID-MITOCHONDRIAL MYOPATHY
XLID-MULTIPLE ANOMALIES-EARLY LETHALITY
XLID-NAIL DYSTROPHY-SEIZURES XLID-NYSTAGMUS-SEIZURES XLID-PANHYPOPITUITARISM XLID-PIGMENTARY MOSAICISM
XLID-PSORIASIS XLID-RETICULATE HYPERPIMENTATION
XLID-RETINITIS PIGMENTOSA XLID-RETINOPATHY-SEIZURES
XLID-ROLANDIC SEIZURES XLID-SEIZURES-APHASIA XLID-SPASTIC PARAPLEGIA, TYPE 7 XLID-SPASTIC PARAPLEGIA-ATHETOSIS XLID-SPONDYLOEPIMETAPHYSEAL DYSPLASIA XLID-TRIGONOCEPHALY
X-LINKED OHDO SYNDROME X-LINKED OLIVOPONTOCEREBELLAR ATROPHY
YOUNG-HUGHES SYNDROME ZC4H2-ASSOCIATED XLID ZFP92-RELATED XLID
ZFX-RELATED XLID
ZMYM3-RELATED XLID APPENDICES
I. GENES INVOLVED IN X-LINKED INTELLECTUAL DISABILITY (BY ORDER OF DISCOVERY) II. XLID SYNDROMES WITH MICROCEPHALY III. XLID SYNDROMES WITH MACROCEPHALY IV. XLID SYNDROMES WITH OCULAR ANOMALIES AND/OR VISUAL IMPAIRMENT V. XLID SYNDROME WITH HEARING LOSS VI. XLID SYNDROMES WITH FACIAL CLEFTING VII. XLID SYNDROMES WITH CARDIAC MALFORMATIONS OR OTHER CARDIOVASCULAR ABNORMALITIES VIII. XLID SYNDROMES WITH UROGENITAL ANOMALIES IX. XLID SYNDROMES WITH NEURONAL MIGRATION DISTURBANCE X. XLID SYNDROMES WITH SPASTIC PARAPLEGIA XI. XLID SYNDROMES WITH SEIZURES XII. XLID SYNDROMES WITH HYPOTONIA XIII. XLID SYNDROMES PREDOMINANTLY AFFECTING FEMALES XIV. DUPLICATION OF XLID GENES AND REGIONS OF THE X-CHROMOSOME GENOME XV. X-INACTIVATION XVI A. Xp SYNDROMAL XLID GENES
XVI B. Xq SYNDROMAL XLID GENES XVI C. SYNDROMAL XLID GENES
XVII. SYNDROMAL XLID (LINKAGE LIMITS) XVIII. NONSYNDROMAL XLID FAMILIES (LINKAGE LIMITS)
XIX. NONSYNDROMAL XLID FAMILIES XX. X-LINKED DISORDERS WITH INTELLECTUAL DISABILITY AND AUTISM INDEX
AARSKOG SYNDROME
ABIDI SYNDROME ADRENOLEUKODYSTROPHY
AGENESIS OF THE CORPUS CALLOSUM, X-LINKED AHMAD SYNDROME AICARDI SYNDROME ALG13 CONGENITAL DISORDER OF GLYCOSYLATION
ALLAN-HERNDON-DUDLEY SYNDROME ALPHA-THALASSEMIA INTELLECTUAL DISABILITY (SEE ALSO ATRX-ASSOCIATED XLID) AP1S2-ASSOCIATED XLID
APAK ATAXIA-SPASTIC DIPLEGIA SYNDROME ARMFIELD SYNDROME ARTS SYNDROME ARX-ASSOCIATED XLID ATAXIA-DEAFNESS-DEMENTIA, X-LINKED ATAXIA-SEIZURES-HEARING LOSS
ATKIN-FLAITZ SYNDROME ATP6AP2 CONGENITAL DISORDER OF GLYCOSYLATION
ATRX-ASSOCIATED XLID BERGIA CARDIOMYOPATHY BERTINI SYNDROME BOERJESON-FORSSMAN-LEHMANN SYNDROME BRANCHIAL ARCH SYNDROME, X-LINKED C1GALT1C1 CHAPERONOPATHY
CANTU SYNDROME CARPENTER-WAZIRI SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) CEREBRO-CEREBELLO-COLOBOMA SYNDROME CEREBRO-OCULO-GENITAL SYNDROME CEREBRO-PALATO-CARDIAC SYNDROME (SEE ALSO RENPENNING SYNDROME) CHARCOT-MARIE-TOOTH NEUROPATHY, COWCHOCK VARIANT
CHASSAING-LACOMBE CHONDRODYSPLASIA CHRISTIAN SYNDROME CHRISTIANSON SYNDROME CHUDLEY-LOWRY SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) CK SYNDROME COFFIN-LOWRY SYNDROME CORNELIA DE LANGE SYNDROME 2
CORNELIA DE LANGE SYNDROME 5 CRANIOFACIOSKELETAL SYNDROME CREATINE TRANSPORTER DEFICIENCY DEAD/H-BOX-RELATED XLID
DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 85
DHSRX CONGENITAL DISORDER OF GLYCOSYLATION
DUCHENNE MUSCULAR DYSTROPHY DYSKERATOSIS CONGENITA EPILEPSY-INTELLECTUAL DISABILITY IN FEMALES FITZSIMMONS SYNDROME FLNA-ASSOCIATED XLID FRAGILE X SYNDROME GABRA3-RELATED XLID-SEIZURES
GALLOWAY-MOWAT SYNDROME 2 GIUFFRE-TSUKAHARA SYNDROME GLRA2-RELATED XLID GLYCEROL KINASE DEFICIENCY GOLABI-ITO-HALL SYNDROME: (SEE ALSO RENPENNING SYNDROME) GOLDBLATT SPASTIC PARAPLEGIA SYNDROME GOLTZ SYNDROME GPKOW-RELATED XLID
GRAHAM ANOPHTHALMIA SYNDROME GUSTAVSON SYNDROME HALL OROFACIAL SYNDROME HEREDITARY BULLOUS DYSTROPHY, X-LINKED HNRNPH2-RELATED XLID HOLMES-GANG SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) HOMFRAY SEIZURES-CONTRACTURES HUTCHINSON SYNDROME
HYDE-FORSTER SYNDROME HYDRANENCEPHALY WITH ABNORMAL GENITALIA (SEE ALSO ARX-ASSOCIATED XLID) HYDROCEPHALY-CEREBELLAR AGENESIS SYNDROME HYDROCEPHALY-MASA SPECTRUM HYPOPARATHYROIDISM, X-LINKED INCONTINENTIA PIGMENTI JUBERG-MARSIDI-BROOKS SYNDROME KABUKI SYNDROME 2
KANG SYNDROME KCND1-RELATED XLID
KDM5C-RELATED XLID
KEIPERT SYNDROME
LENZ MICROPHTHALMIA SYNDROME LESCH-NYHAN SYNDROME LINEAR SKIN DEFECTS-MULTIPLE ANOMALIES
LISSENCEPHALY AND ABNORMAL GENITALIA, X-LINKED (SEE ALSO ARX-ASSOCIATED XLID) LISSENCEPHALY, X-LINKED LOWE SYNDROME LUJAN SYNDROME MAGT1 CONGENITAL DISORDER OF GLYCOSYLATION
MARTIN-PROBST SYNDROME MED12-RELATED XLID
MEHMO SYNDROME MEND SYNDROME
MENKES SYNDROME MICROPHTHALMIA 2
MICROPHTHALMIA 13
MIDAS SYNDROME MILES-CARPENTER SYNDROME MOHR-TRANEBJAERG SYNDROME MONOAMINE OXIDASE-A DEFICIENCY MSL3-RELATED XLID
MUCOPOLYSACCHARIDOSIS IIA MULTIPLE CONGENITAL ANOMALIES-HYPOTONIA-SEIZURES SYNDROME 2 MYOTUBULAR MYOPATHY NAA10-ASSOCIATED XLID
N-ALPHA-ACETYLTRANSFERASE DEFICIENCY NANCE-HORAN SYNDROME
NEURODEGENERATION WITH BRAIN IRON ACCUMULATION 5
NEURODEVELOPMENTAL DISORDER WITH EPILEPSY AND HEMOCHROMATOSIS NKAP-RELATED XLID
NONO-RELATED XLID
NORRIE DISEASE O-GlcNAc TRANSFERASE DEFICIENCY
OGDEN SYNDROME (SEE ALSO NAA10-ASSOCIATED XLID)
OPITZ FG SYNDROME OPTIC ATROPHY, X-LINKED ORAL-FACIAL-DIGITAL SYNDROME I ORNITHINE TRANSCARBAMOYLASE DEFICIENCY OSTEOPATHIA STRIATA WITH CRANIAL SCLEROSIS
OTOPALATODIGITAL SYNDROME I (SEE ALSO FLNA-ASSOCIATED XLID) OTOPALATODIGITAL SYNDROME II (SEE ALSO FLNA-ASSOCIATED XLID) PAINE SYNDROME PALLISTER W SYNDROME PARTINGTON SYNDROME (SEE ALSO ARX-ASSOCIATED XLID) PELIZAEUS-MERZBACHER SYNDROME PERIVENTRICULAR NODULAR HETEROTOPIA (SEE ALSO FLNA-ASSOCIATED XLID) PETTIGREW SYNDROME PHOSPHOGLYCERATE KINASE DEFICIENCY PIGA-ASSOCIATED XLID
PLOTT SYNDROME PORTEOUS SYNDROME (SEE ALSO RENPENNING SYNDROME) PPM-X PRIETO SYNDROME PROUD SYNDROME (SEE ALSO ARX-ASSOCIATED XLID) PYRUVATE DEHYDROGENASE DEFICIENCY RAYMOND TYPE XLID
RENPENNING SYNDROME RETT SYNDROME RETT-LIKE SEIZURES-HYPOTONIA RITSCHER-SCHINZEL SYNDROME 2
RNF113A-RELATED XLID
SAY-MEYER SYNDROME SCHIMKE SYNDROME SH3KBP1-RELATED XLID
SHASHI SYNDROME SHRIMPTON SYNDROME SHUKLA-VERNON SYNDROME
SIMPSON-GOLABI-BEHMEL SYNDROME SLC35A2 CONGENITAL DISORDER OF GLYCOSYLATION SLITRK2-RELATED XLID
SMARCA1-RELATED XLID
SMITH-FINEMAN-MYERS SYNDROME SNYDER-ROBINSON SYNDROME SSR4 CONGENITAL DISORDER OF GLYCOSYLATION
STAG-RELATED HOLOPROSENCEPHALY STAG2-RELATED XLID
STOCCO DOS SANTOS SYNDROME STOLL SYNDROME SUTHERLAND-HAAN SYNDROME (SEE ALSO RENPENNING SYNDROME) TARP SYNDROME TCEAL1-RELATED XLID
TELECANTHUS-HYPOSPADIAS SYNDROME TURNER XLID (SEE ALSO AP1S2-ASSOCIATED XLID) URBAN SYNDROME
USP9X-RELATED XLID
VACTERL-HYDROCEPHALUS SYNDROME VASQUEZ SYNDROME WAISMAN-LAXOVA SYNDROME WARKANY SYNDROME WDR44 CILIOPATHY
WIEACKER-WOLFF SYNDROME WIEACKER-WOLFF SYNDROME, FEMALE RESTRICTED WILSON-TURNER SYNDROME XLID-ARCH FINGERPRINTS-HYPOTONIA SYNDROME (SEE ALSO ATRX-ASSOCIATED XLID) XLID-ATAXIA-APRAXIA XLID-ATAXIA-DEMENTIA XLID-ATAXIA-SEIZURES
XLID-BLINDNESS-SEIZURES-SPASTICITY XLID-BRAIN ANOMALIES-ATAXIA
XLID-CHOREOATHETOSIS XLID-CHOROIDEREMIA-ECTODERMAL DYSPLASIA XLID-CLEFT LIP/CLEFT PALATE XLID-EPILEPSY (XIDE) XLID-HYDROCEPHALY-BASAL GANGLIA CALCIFICATIONS (SEE ALSO AP1S2-ASSOCIATED XLID) XLID-HYPEREKPLEXIA-SEIZURES
XLID-HYPOGAMMAGLOBULINEMIA XLID-HYPOGONADISM-TREMOR XLID-HYPOSPADIAS XLID-HYPOTONIA-RECURRENT INFECTIONS XLID-INFANTILE SPASMS (SEE ALSO ARX-ASSOCIATED XLID) XLID-ISOLATED GROWTH HORMONE DEFICIENCY XLID-MACROCEPHALY XLID-MACROCEPHALY-MACROORCHIDISM XLID-MICROCEPHALY-TESTICULAR FAILURE XLID-MITOCHONDRIAL MYOPATHY
XLID-MULTIPLE ANOMALIES-EARLY LETHALITY
XLID-NAIL DYSTROPHY-SEIZURES XLID-NYSTAGMUS-SEIZURES XLID-PANHYPOPITUITARISM XLID-PIGMENTARY MOSAICISM
XLID-PSORIASIS XLID-RETICULATE HYPERPIMENTATION
XLID-RETINITIS PIGMENTOSA XLID-RETINOPATHY-SEIZURES
XLID-ROLANDIC SEIZURES XLID-SEIZURES-APHASIA XLID-SPASTIC PARAPLEGIA, TYPE 7 XLID-SPASTIC PARAPLEGIA-ATHETOSIS XLID-SPONDYLOEPIMETAPHYSEAL DYSPLASIA XLID-TRIGONOCEPHALY
X-LINKED OHDO SYNDROME X-LINKED OLIVOPONTOCEREBELLAR ATROPHY
YOUNG-HUGHES SYNDROME ZC4H2-ASSOCIATED XLID ZFP92-RELATED XLID
ZFX-RELATED XLID
ZMYM3-RELATED XLID APPENDICES
I. GENES INVOLVED IN X-LINKED INTELLECTUAL DISABILITY (BY ORDER OF DISCOVERY) II. XLID SYNDROMES WITH MICROCEPHALY III. XLID SYNDROMES WITH MACROCEPHALY IV. XLID SYNDROMES WITH OCULAR ANOMALIES AND/OR VISUAL IMPAIRMENT V. XLID SYNDROME WITH HEARING LOSS VI. XLID SYNDROMES WITH FACIAL CLEFTING VII. XLID SYNDROMES WITH CARDIAC MALFORMATIONS OR OTHER CARDIOVASCULAR ABNORMALITIES VIII. XLID SYNDROMES WITH UROGENITAL ANOMALIES IX. XLID SYNDROMES WITH NEURONAL MIGRATION DISTURBANCE X. XLID SYNDROMES WITH SPASTIC PARAPLEGIA XI. XLID SYNDROMES WITH SEIZURES XII. XLID SYNDROMES WITH HYPOTONIA XIII. XLID SYNDROMES PREDOMINANTLY AFFECTING FEMALES XIV. DUPLICATION OF XLID GENES AND REGIONS OF THE X-CHROMOSOME GENOME XV. X-INACTIVATION XVI A. Xp SYNDROMAL XLID GENES
XVI B. Xq SYNDROMAL XLID GENES XVI C. SYNDROMAL XLID GENES
XVII. SYNDROMAL XLID (LINKAGE LIMITS) XVIII. NONSYNDROMAL XLID FAMILIES (LINKAGE LIMITS)
XIX. NONSYNDROMAL XLID FAMILIES XX. X-LINKED DISORDERS WITH INTELLECTUAL DISABILITY AND AUTISM INDEX