Mental Retardation, X-linked, Syndromic, Snyder-robinson Type; Mrxssr

Description

X-linked intellectual disability, Snyder type is a rare X-linked intellectual disability syndrome characterized by hypotonia, asthenic build with diminished muscle mass, severe generalized psychomotor delay, unsteady gait and moderate to severe intellectual disability, as well as a long, thin, asymmetrical face with prominent lower lip, long fingers and toes and nasal, dysarthric or absent speech. Bone abnormalities (e.g., osteoporosis, kyphoscoliosis, fractures, joint contractures) are also characteristic. Myoclonic, or myoclonic-like, seizures and renal abnormalities have been associated in some patients.

Clinical Features

Top most frequent phenotypes and symptoms related to Mental Retardation, X-linked, Syndromic, Snyder-robinson Type; Mrxssr

  • Intellectual disability
  • Seizures
  • Global developmental delay
  • Short stature
  • Generalized hypotonia
  • Pica
  • Scoliosis
  • Hypertelorism
  • Muscular hypotonia
  • Ptosis
And another 63 symptoms. If you need more information about this disease we can help you.
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Incidence and onset information

Not enough data available about incidence and published cases.


Mendelian

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Mental Retardation, X-linked, Syndromic, Snyder-robinson Type; Mrxssr Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Epilepsy Advanced Sequencing and CNV Evaluation.

By Athena Diagnostics Inc in United States.

UBE3A, ALPL, ADSL, PAX6, CPT2, ATP6V0A2, HSD17B10, HPRT1, ADGRV1, SHH, POLG, SLC25A19, PANK2, MECP2, LIAS, ABAT, GAMT, GATM, STXBP1, SUCLA2 , (...)

View the complete list with 214 more genes
Specificity
1 %
Genes
100 %
Epilepsy Advanced Sequencing and CNV Evaluation - Intellectual Disability.

By Athena Diagnostics Inc in United States.

ADSL, HSD17B10, MECP2, ABAT, GAMT, GATM, ALG9, SLC9A6, SLC6A8, ARX, CDKL5, CHRNA7, PCDH19, PLP1, SMC1A, GPC3, DPYD, SLC35A2, FOLR1, GABRB2 , (...)

View the complete list with 36 more genes
Specificity
2 %
Genes
100 %
NGS XLID Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, GK, TIMM8A, AIFM1, MAOA, ACSL4, SLC9A6, BCOR, ABCD1, NDUFA1, ARX , (...)

View the complete list with 94 more genes
Specificity
1 %
Genes
100 %
X-Linked Intellectual Disabilities Deletion/Duplication.

By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, ACSL4, SLC9A6, BCOR, NDUFA1, ARX, CDKL5 , (...)

View the complete list with 68 more genes
Specificity
2 %
Genes
100 %
X-linked Intellectual Disabilities Sequencing.

By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, ACSL4, SLC9A6, BCOR, NDUFA1, ARX, CDKL5 , (...)

View the complete list with 68 more genes
Specificity
2 %
Genes
100 %
X-Linked Intellectual Disabilities Sequencing and Deletion/Duplication.

By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, SLC9A6, BCOR, NDUFA1, ARX, CDKL5, DMD , (...)

View the complete list with 67 more genes
Specificity
2 %
Genes
100 %
Non-Specific Intellectual Disability Panel.

By Genetic Services Laboratory University of Chicago in United States.

FMR1, UBE3A, HSD17B10, OCRL, HPRT1, NHS, MECP2, IDH2, STXBP1, TUBA1A, TUSC3, ALG6, D2HGDH, PDHA1, MAOA, ACSL4, SLC9A6, BCOR, ALDH5A1, L2HGDH , (...)

View the complete list with 153 more genes
Specificity
1 %
Genes
100 %
X-linked Non-Specific Intellectual Disability Panel.

By Genetic Services Laboratory University of Chicago in United States.

FMR1, HSD17B10, OCRL, HPRT1, NHS, MECP2, PDHA1, MAOA, ACSL4, SLC9A6, BCOR, SLC6A8, ARX, CDKL5, PCDH19, PLP1, SMC1A, L1CAM, DCX, PQBP1 , (...)

View the complete list with 59 more genes
Specificity
2 %
Genes
100 %
CustomNext: Neuro.

By Ambry Genetics in United States.

FMR1, UBE3A, PTEN, ATP7A, OCRL, NDP, HPRT1, NHS, POLG, MECP2, GAMT, GATM, STXBP1, TUSC3, CTSD, SLC25A22, GRN, OTC, PDHA1, TIMM8A , (...)

View the complete list with 176 more genes
Specificity
1 %
Genes
100 %
Neurodevelopment-Expanded.

By Ambry Genetics in United States.

FMR1, UBE3A, PTEN, ATP7A, OCRL, NDP, HPRT1, NHS, POLG, MECP2, GAMT, GATM, STXBP1, TUSC3, CTSD, SLC25A22, GRN, OTC, PDHA1, TIMM8A , (...)

View the complete list with 176 more genes
Specificity
1 %
Genes
100 %
SMS gene sequence.

By Ambry Genetics in United States.

SMS
Specificity
100 %
Genes
100 %
IDNext.

By Ambry Genetics in United States.

FMR1, UBE3A, PTEN, ATP7A, OCRL, NDP, HPRT1, NHS, MECP2, GAMT, GATM, TUSC3, SLC25A22, OTC, PDHA1, TIMM8A, MAOA, ACSL4, SLC9A6, ABCD1 , (...)

View the complete list with 120 more genes
Specificity
1 %
Genes
100 %
SMS. Complete sequencing.

By Instituto de Medicina Genomica Instituto de Medicina Genomica in Spain.

SMS
Specificity
100 %
Genes
100 %
Mental retardation, X-linked, Snyder-Robinson type (sequence analysis of SMS gene).

By CGC Genetics in Portugal.

SMS
Specificity
100 %
Genes
100 %
Mental retardation, X-linked (NGS panel for 89 genes).

By CGC Genetics in Portugal.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, ACSL4, SLC9A6, BCOR, ABCD1, NDUFA1, SLC6A8 , (...)

View the complete list with 69 more genes
Specificity
2 %
Genes
100 %
Marfan Syndrome and Related Aortopathies Sequencing Panel with CNV Detection.

By PreventionGenetics PreventionGenetics in United States.

FBLN5, COL3A1, ELN, FBN1, CBS, COL5A1, COL5A2, PLOD1, SMAD4, FLNA, SMS, MED12, TGFB2, NOTCH1, SMAD3, TGFBR1, TGFBR2, SKI, MYLK, FBN2 , (...)

View the complete list with 10 more genes
Specificity
4 %
Genes
100 %
X-Linked Intellectual Disability Sequencing Panel with CNV Detection.

By PreventionGenetics PreventionGenetics in United States.

FMR1, HSD17B10, NDP, HPRT1, NHS, MECP2, OTC, PDHA1, GK, AIFM1, MAOA, ACSL4, SLC9A6, BCOR, ABCD1, TMLHE, SLC6A8, ARX, CDKL5, IDS , (...)

View the complete list with 108 more genes
Specificity
1 %
Genes
100 %
Snyder-Robinson Syndrome, Spermine Synthase Deficiency via the SMS Gene.

By PreventionGenetics PreventionGenetics in United States.

SMS
Specificity
100 %
Genes
100 %
Mental retardation - different panels.

By Institute of Human Genetics Cologne University in Germany.

FMR1, UBE3A, PTEN, MCCC1, MCCC2, ACAD9, PC, ANKH, HLCS, ATP7A, AUH, B4GALT7, BCKDHA, BCKDHB, BCS1L, C12orf65, ADSL, MMACHC, PRKCG, PAX6 , (...)

View the complete list with 847 more genes
Specificity
1 %
Genes
100 %
Mental Retardation and Dysmorphology - panels.

By MGZ Medical Genetics Center in Germany.

FMR1, UBE3A, PTEN, RECQL4, AGL, ATP7A, GAA, LRP5, SLC37A4, GNPTAB, GLB1, HSD17B10, OCRL, JAG1, NDP, HPRT1, NHS, RAF1, SMPD1, MECP2 , (...)

View the complete list with 323 more genes
Specificity
1 %
Genes
100 %
Syndromal Diseases - panels.

By MGZ Medical Genetics Center in Germany.

FMR1, UBE3A, PTEN, RECQL4, AGL, ATP7A, GAA, LRP5, SLC37A4, GNPTAB, GLB1, HSD17B10, OCRL, JAG1, NDP, HPRT1, NHS, RAF1, SMPD1, MECP2 , (...)

View the complete list with 322 more genes
Specificity
1 %
Genes
100 %
X-Linked Mental Retardation.

By MGZ Medical Genetics Center in Germany.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, AIFM1, MAOA, ACSL4, SLC9A6, BCOR, NDUFA1, SLC6A8 , (...)

View the complete list with 93 more genes
Specificity
1 %
Genes
100 %
Brain Malformations / Neuronal Migration Disorders.

By MGZ Medical Genetics Center in Germany.

FMR1, UBE3A, PTEN, APP, TUBB3, HSD17B10, HPRT1, PANK2, FH, MECP2, GAMT, STXBP1, TUBA1A, SLC25A22, GLDC, GK, MAOA, ACSL4, SLC9A6, ALDH7A1 , (...)

View the complete list with 246 more genes
Specificity
1 %
Genes
100 %
Spermine synthase deficiency, Snyder-Robinson (SMS).

By VU University Medical Center Metabolic Unit, PX 1X 009 in Netherlands.

SMS
Specificity
100 %
Genes
100 %
Epileptic syndromes with epilepsy and intellectual disability panel.

By Genome Diagnostics Laboratory University Medical Center Utrecht in Netherlands.

UBE3A, HSD17B10, MECP2, STXBP1, SLC9A6, SLC6A8, ARX, CDKL5, FOXG1, MEF2C, PLP1, SYNGAP1, SMC1A, GPC3, GRIN2B, GRIN2A, MBD5, TBC1D24, DCX, PQBP1 , (...)

View the complete list with 30 more genes
Specificity
2 %
Genes
100 %
Mental retardation, X-linked, Snyder-Robinson type.

By Centogene AG - the Rare Disease Company in Germany.

SMS
Specificity
100 %
Genes
100 %
AllNeuro panel.

By Centogene AG - the Rare Disease Company in Germany.

F2, F5, FMR1, HTT, HFE, MTHFR, TTR, UBE3A, VHL, PTEN, AARS2, ABHD12, ACACA, ACAD9, ACADL, ACADM, ACADS, AGL, ACADVL, ACAT1 , (...)

View the complete list with 1185 more genes
Specificity
1 %
Genes
100 %
Epilepsy and X-linked Mental Retardation with Seizures Panel.

By CeGaT GmbH in Germany.

HSD17B10, MECP2, SLC9A6, ARX, CDKL5, PCDH19, OFD1, SMS, ATRX, IQSEC2, PHF6, SYP, GRIA3, ARHGEF9, PAK3, KDM5C, SYN1, OPHN1, ATP6AP2, CASK , (...)

View the complete list with 5 more genes
Specificity
4 %
Genes
100 %
Single gene testing SMS.

By CeGaT GmbH in Germany.

SMS
Specificity
100 %
Genes
100 %
XLMR Snyder-Robinson Type: SMS Full Gene Sequencing.

By EGL Genetic Diagnostics Eurofins Clinical Diagnostics in United States.

SMS
Specificity
100 %
Genes
100 %
XLMR Snyder-Robinson Type: SMS Gene Deletion/Duplication.

By EGL Genetic Diagnostics Eurofins Clinical Diagnostics in United States.

SMS
Specificity
100 %
Genes
100 %
X-linked Intellectual Disability: Gene Sequencing and Deletion/Duplication Panel.

By EGL Genetic Diagnostics Eurofins Clinical Diagnostics in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, ACSL4, SLC9A6, BCOR, NDUFA1, ARX, CDKL5 , (...)

View the complete list with 71 more genes
Specificity
2 %
Genes
100 %
Epilepsy NGS Panel.

By Fulgent Genetics Fulgent Genetics in United States.

MTHFR, UBE3A, PC, ARG1, BTD, ATPAF2, BCS1L, C12orf65, ADSL, PAX6, CPT2, PSAP, GNPTAB, GLB1, CC2D2A, PRODH, ATP6V0A2, GNE, HSD17B10, TMEM67 , (...)

View the complete list with 323 more genes
Specificity
1 %
Genes
100 %
Intellectual Disability NGS Panel.

By Fulgent Genetics Fulgent Genetics in United States.

BRCA2, F5, FMR1, MTHFR, TTR, UBE3A, PTEN, MCCC1, MCCC2, AGL, ACAT1, GYS2, ARG1, ATP7A, AUH, BCS1L, ADSL, FBLN5, LRP5, COL1A2 , (...)

View the complete list with 372 more genes
Specificity
1 %
Genes
100 %
XLID NGS Panel.

By Fulgent Genetics Fulgent Genetics in United States.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, AIFM1, MAOA, ACSL4, SLC9A6, BCOR, ABCD1, NDUFA1 , (...)

View the complete list with 87 more genes
Specificity
1 %
Genes
100 %
SMS.

By Fulgent Genetics Fulgent Genetics in United States.

SMS
Specificity
100 %
Genes
100 %
Comprehensive Epilepsy NGS Panel.

By Fulgent Genetics Fulgent Genetics in United States.

MTHFR, UBE3A, PC, ARG1, BTD, ATPAF2, AUH, BCS1L, TWNK, C12orf65, ADSL, PAX6, AMACR, CPT2, PSAP, GNPTAB, GLB1, CC2D2A, PRODH, ATP6V0A2 , (...)

View the complete list with 427 more genes
Specificity
1 %
Genes
100 %
X-chromosome High Resolution microarray analysis.

By Pittsburgh Cytogenetics Laboratory University of Pittsburgh Medical Center in United States.

ATP7A, OPN1MW, CHM, GPR143, HSD17B10, OCRL, CACNA1F, NDP, HPRT1, NHS, ALAS2, RPGR, MECP2, RS1, PHKA2, RP2, OTC, HCCS, PDHA1, GK , (...)

View the complete list with 140 more genes
Specificity
1 %
Genes
100 %
X-linked Intellectual Disability Panel.

By Blueprint Genetics in Finland.

FMR1, ATP7A, HSD17B10, OCRL, NDP, HPRT1, NHS, MECP2, OTC, HCCS, PDHA1, GK, TIMM8A, MAOA, ACSL4, SLC9A6, BCOR, ABCD1, NDUFA1, SLC6A8 , (...)

View the complete list with 79 more genes
Specificity
2 %
Genes
100 %
Comprehensive Epilepsy Panel.

By Blueprint Genetics in Finland.

HTT, MTHFR, UBE3A, ARG1, BTD, ADSL, AMACR, CPT2, PSAP, GLB1, PRODH, GNE, HSD17B10, POLG, NDUFS4, HSPD1, AFG3L2, FOXRED1, FH, MECP2 , (...)

View the complete list with 263 more genes
Specificity
1 %
Genes
100 %
Snyder-Robinson syndrome.

By Bioarray in Spain.

SMS
Specificity
100 %
Genes
100 %
SNYDER-ROBINSON SYNDROME.

By Laboratorio de Genetica Clinica SL in Spain.

SMS
Specificity
100 %
Genes
100 %
X-Linked Mental Retardation Type Snyder-Robinson , Sequencing SMS Gene.

By Reference Laboratory Genetics in Spain.

SMS
Specificity
100 %
Genes
100 %

Alternate names

Mental Retardation, X-linked, Syndromic, Snyder-robinson Type; Mrxssr Is also known as snyder-robinson mental retardation syndrome;srs;snyder-robinson syndrome.


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