HCFC1host cell factor C1
Autism Reports / Total Reports
7 / 13Rare Variants / Common Variants
24 / 0Aliases
HCFC1, CFF, HCF, HCF-1, HCF1, HFC1, MRX3, PPP1R89, VCAFAssociated Syndromes
-Chromosome Band
Xq28Associated Disorders
DD/NDD, ASD, EPS, IDRelevance to Autism
A variant in the 5'UTR of the HCFC1 gene was found to completely segregate with intellectual disability in the MRX3 pedigree. This variant, which resided in the binding site of the transcription factor YY1, abolished YY1 binding and led to increased HCFC1 expression. Two additional unique HCFC1 variants were identified in follow-up exome sequencing of probands from unresolved families affected by intellectual disability, one of which was shown to segregate with ID (Huang et al., 2012).
Molecular Function
Involved in control of the cell cycle.
External Links
SFARI Genomic Platforms
Reports related to HCFC1 (13 Reports)
# | Type | Title | Author, Year | Autism Report | Associated Disorders |
---|---|---|---|---|---|
1 | Primary | A noncoding, regulatory mutation implicates HCFC1 in nonsyndromic intellectual disability | Huang L , et al. (2012) | No | - |
2 | Support | Analysis of the effects of rare variants on splicing identifies alterations in GABAA receptor genes in autism spectrum disorder individuals | Piton A , et al. (2012) | Yes | - |
3 | Recent Recommendation | An X-linked cobalamin disorder caused by mutations in transcriptional coregulator HCFC1 | Yu HC , et al. (2013) | No | DD, epilepsy |
4 | Support | Efficient strategy for the molecular diagnosis of intellectual disability using targeted high-throughput sequencing | Redin C , et al. (2014) | No | - |
5 | Support | Large-scale discovery of novel genetic causes of developmental disorders | Deciphering Developmental Disorders Study (2014) | No | - |
6 | Support | A novel HCFC1 variant in male siblings with intellectual disability and microcephaly in the absence of cobalamin disorder | Koufaris C , et al. (2016) | No | Microcephaly |
7 | Support | Genomic diagnosis for children with intellectual disability and/or developmental delay | Bowling KM , et al. (2017) | No | Autistic features |
8 | Support | Neurological Diseases With Autism Spectrum Disorder: Role of ASD Risk Genes | Xiong J , et al. (2019) | Yes | ID |
9 | Support | The Clinical and Genetic Features of Co-occurring Epilepsy and Autism Spectrum Disorder in Chinese Children | Long S , et al. (2019) | Yes | - |
10 | Support | - | Woodbury-Smith M et al. (2022) | Yes | - |
11 | Support | - | Hu C et al. (2022) | Yes | - |
12 | Support | - | Sheth F et al. (2023) | Yes | DD, ID, epilepsy/seizures |
13 | Support | - | Hosneara Akter et al. () | Yes | - |
Rare Variants (24)
Status | Allele Change | Residue Change | Variant Type | Inheritance Pattern | Parental Transmission | Family Type | PubMed ID | Author, Year |
---|---|---|---|---|---|---|---|---|
c.5261-4C>T | - | splice_region_variant | Unknown | - | - | 35741772 | Hu C et al. (2022) | |
c.218C>T | p.Ala73Val | missense_variant | De novo | - | Simplex | 24011988 | Yu HC , et al. (2013) | |
c.202C>G | p.Gln68Glu | missense_variant | Unknown | - | Unknown | 24011988 | Yu HC , et al. (2013) | |
c.217G>A | p.Ala73Thr | missense_variant | Unknown | - | Unknown | 24011988 | Yu HC , et al. (2013) | |
c.218C>T | p.Ala73Val | missense_variant | Unknown | - | Unknown | 24011988 | Yu HC , et al. (2013) | |
c.3610C>T | p.Arg1204Cys | missense_variant | Unknown | - | - | 39342494 | Hosneara Akter et al. () | |
c.343G>A | p.Ala115Thr | missense_variant | Unknown | - | Unknown | 24011988 | Yu HC , et al. (2013) | |
c.344C>T | p.Ala115Val | missense_variant | Unknown | - | Unknown | 24011988 | Yu HC , et al. (2013) | |
c.5114C>G | p.Ala1705Gly | missense_variant | De novo | - | - | 28554332 | Bowling KM , et al. (2017) | |
c.4106T>C | p.Met1369Thr | missense_variant | Familial | Maternal | - | 35741772 | Hu C et al. (2022) | |
c.2860G>A | p.Val954Met | missense_variant | Familial | Maternal | - | 31139143 | Long S , et al. (2019) | |
c.722C>T | p.Thr241Met | missense_variant | Unknown | - | Multiplex | 23169495 | Piton A , et al. (2012) | |
c.5305G>A | p.Val1769Met | missense_variant | Familial | Maternal | - | 31031587 | Xiong J , et al. (2019) | |
c.4296G>A | p.Thr1432%3D | synonymous_variant | De novo | - | - | 35205252 | Woodbury-Smith M et al. (2022) | |
c.1429G>A | p.Ala477Thr | missense_variant | Familial | Maternal | - | 28554332 | Bowling KM , et al. (2017) | |
c.344C>T | p.Ala115Val | missense_variant | Familial | Maternal | Simplex | 24011988 | Yu HC , et al. (2013) | |
c.3980C>T | p.Thr1327Met | missense_variant | Familial | Maternal | Simplex | 37543562 | Sheth F et al. (2023) | |
c.2626G>A | p.Gly876Ser | missense_variant | Familial | Maternal | Simplex | 23000143 | Huang L , et al. (2012) | |
c.218C>T | p.Ala73Val | missense_variant | Familial | Maternal | Multiplex | 25167861 | Redin C , et al. (2014) | |
c.5267C>T | p.Ala1756Val | missense_variant | Unknown | - | Multi-generational | 23000143 | Huang L , et al. (2012) | |
c.-970T>C | - | 5_prime_UTR_variant | Familial | Maternal | Multi-generational | 23000143 | Huang L , et al. (2012) | |
c.2690C>T | p.Ala897Val | missense_variant | Familial | Maternal | Multiplex | 26893841 | Koufaris C , et al. (2016) | |
c.674G>A | p.Ser225Asn | missense_variant | Familial | Maternal | Multi-generational | 23000143 | Huang L , et al. (2012) | |
c.2285C>T | p.Thr762Ile | missense_variant | Familial | Maternal | Multi-generational | 25533962 | Deciphering Developmental Disorders Study (2014) |
Common Variants
No common variants reported.
SFARI Gene score
Syndromic


A variant in the 5'UTR of the HCFC1 gene was found to completely segregate with intellectual disability in the MRX3 pedigree. This variant, which resided in the binding site of the transcription factor YY1, abolished YY1 binding and led to increased HCFC1 expression. Two additional unique HCFC1 variants were identified in follow-up exome sequencing of probands from unresolved families affected by intellectual disability, one of which was shown to segregate with ID (Huang et al., 2012). Yu et al., 2013 identified 5 different hemizygous missense mutations in the HCFC1 gene in 14 unrelated males with X-linked intellectual disability and a cobalamin disorder identified through laboratory studies (cblX). Autistic disorder or autistic features have been observed in two individuals with HCFC1-associated intellectual disability (Redin et al., 2014; Bowling et al., 2017).
Score Delta: Score remained at S
criteria met
See SFARI Gene'scoring criteriaThe syndromic category includes mutations that are associated with a substantial degree of increased risk and consistently linked to additional characteristics not required for an ASD diagnosis. If there is independent evidence implicating a gene in idiopathic ASD, it will be listed as "#S" (e.g., 2S, 3S, etc.). If there is no such independent evidence, the gene will be listed simply as "S."
10/1/2019

Score remained at S
New Scoring Scheme
Description
A variant in the 5'UTR of the HCFC1 gene was found to completely segregate with intellectual disability in the MRX3 pedigree. This variant, which resided in the binding site of the transcription factor YY1, abolished YY1 binding and led to increased HCFC1 expression. Two additional unique HCFC1 variants were identified in follow-up exome sequencing of probands from unresolved families affected by intellectual disability, one of which was shown to segregate with ID (Huang et al., 2012). Yu et al., 2013 identified 5 different hemizygous missense mutations in the HCFC1 gene in 14 unrelated males with X-linked intellectual disability and a cobalamin disorder identified through laboratory studies (cblX). Autistic disorder or autistic features have been observed in two individuals with HCFC1-associated intellectual disability (Redin et al., 2014; Bowling et al., 2017).
Reports Added
[New Scoring Scheme]7/1/2019

Score remained at S
Description
A variant in the 5'UTR of the HCFC1 gene was found to completely segregate with intellectual disability in the MRX3 pedigree. This variant, which resided in the binding site of the transcription factor YY1, abolished YY1 binding and led to increased HCFC1 expression. Two additional unique HCFC1 variants were identified in follow-up exome sequencing of probands from unresolved families affected by intellectual disability, one of which was shown to segregate with ID (Huang et al., 2012). Yu et al., 2013 identified 5 different hemizygous missense mutations in the HCFC1 gene in 14 unrelated males with X-linked intellectual disability and a cobalamin disorder identified through laboratory studies (cblX). Autistic disorder or autistic features have been observed in two individuals with HCFC1-associated intellectual disability (Redin et al., 2014; Bowling et al., 2017).
Krishnan Probability Score
Score 0.49166912456193
Ranking 5268/25841 scored genes
[Show Scoring Methodology]
ExAC Score
Score 0.99999593449913
Ranking 384/18225 scored genes
[Show Scoring Methodology]
Sanders TADA Score
Score 0.94948846140826
Ranking 18111/18665 scored genes
[Show Scoring Methodology]
Zhang D Score
Score 0.45042558027932
Ranking 917/20870 scored genes
[Show Scoring Methodology]
Interactome
- Protein Binding
- DNA Binding
- RNA Binding
- Protein Modification
- Direct Regulation
- ASD-Linked Genes
Interaction Table
Interactor Symbol | Interactor Name | Interactor Organism | Interactor Type | Entrez ID | Uniprot ID |
---|---|---|---|---|---|
DDAH2 | N(G),N(G)-dimethylarginine dimethylaminohydrolase 2 | Human | Protein Binding | 23564 | O95865 |
HCFC1R1 | Host cell factor C1 regulator 1 | Human | Protein Binding | 54985 | Q9NWW0-2 |