Activity

Filter

Cancel
Date Panel Item Activity
26 actions
Nephrocalcinosis or nephrolithiasis v2.30 HNF4A Eleanor Williams Phenotypes for gene: HNF4A were changed from Fanconi renotubular syndrome 4, with maturity-onset diabetes of the young, 616026 to Fanconi renotubular syndrome 4, with maturity-onset diabetes of the young, OMIM:616026
Nephrocalcinosis or nephrolithiasis v2.29 HNF4A Eleanor Williams Tag for-review was removed from gene: HNF4A.
Nephrocalcinosis or nephrolithiasis v2.27 HNF4A Eleanor Williams commented on gene: HNF4A: The rating of this gene has been updated following NHS Genomic Medicine Service approval. The reviewers note that nephrocalcinosis is a feature of Fanconi renotubular syndrome.
Nephrocalcinosis or nephrolithiasis v2.26 HNF4A Eleanor Williams Source Expert Review Green was added to HNF4A.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Nephrocalcinosis or nephrolithiasis v2.14 HNF4A Arina Puzriakova Classified gene: HNF4A as Amber List (moderate evidence)
Nephrocalcinosis or nephrolithiasis v2.14 HNF4A Arina Puzriakova Added comment: Comment on list classification: Changed rating to Amber so that Green genes on this panel reflect the NHS signed-off version. This will be reviewed at the next GMS panel update.
Nephrocalcinosis or nephrolithiasis v2.14 HNF4A Arina Puzriakova Gene: hnf4a has been classified as Amber List (Moderate Evidence).
Nephrocalcinosis or nephrolithiasis v2.13 HNF4A Eleanor Williams Tag for-review tag was added to gene: HNF4A.
Nephrocalcinosis or nephrolithiasis v2.4 HNF4A Eleanor Williams Classified gene: HNF4A as Green List (high evidence)
Nephrocalcinosis or nephrolithiasis v2.4 HNF4A Eleanor Williams Added comment: Comment on list classification: Although only one variant reported in all cases, there are now 7 cases in which the R76W/R63W (depending on reference transcript used) variant has been found in patients with Fanconi renotubular syndrome and nephrocalcinosis is a feature. Fly model also supports a pathogenic role for this variant.
Nephrocalcinosis or nephrolithiasis v2.4 HNF4A Eleanor Williams Gene: hnf4a has been classified as Green List (High Evidence).
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams changed review comment from: Note the same codon is reported as R76W and R63W in different paper depending on whether NM_000457 or NM_175914 is used as the reference transcript.

Additional papers including those cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Renal ultrasonography showed nephrocalcinosis. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia. (NOTE: no transcript identifier given but they refer to this as the same variant as R76W).

PMID: 28693455 - Walsh et al 2917 - 1 case of mother and son with heterozygous c.187C > T; p.Arg63Trp in HNF4A and Renal Fanconi syndrome. Mother is reported to have mild nephrocalcinosis

PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T), (NM_000457) which is a known disease-causing MODY1 mutation in HNF4A. Nephrocalcinosis not specifically mentioned.

No nephrocalcinosis reported:
PMID: 28458902 - Clemente et al 2017 - 1 patient with congenital hyperinsulinaemic hypoglycaemia, rickets with craniotabes, wrist widening, genu varum and motor impairment. non-gap metabolic acidosis with acidified urine suggestive of proximal tubular acidosis, glycosuria with generalised aminoaciduria and tubular type proteinuria. Says this patient did NOT have the same ‘atypical’ Fanconi syndrome with hypercalciuria with relative hypocalcaemia, hypermagnesaemia, nephrocalcinosis and renal impairment as the patients reported by Hamilton et al 2014. A de novo variant p.Arg63Trp, c.187C > T (reference sequence: NM_175914.4) was found.

PMID: 27245055 - Improda et al 2016 - 2 infants with the p.R63W mutation HNF4A with macrosomia and atypical Fanconi syndrome, in addition to hyperinsulinaemic hypoglycaemia. No nephrocalcinosis reported but this may be due to young age.
; to: Note the same codon is reported as R76W and R63W in different paper depending on whether NM_000457 or NM_175914 is used as the reference transcript.

Additional papers including those cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 31949432 - Anyiam et al 2019 - described patient with Renal Fanconi syndrome and R63W mutation through 3rd pregnancy. She had a history of progressive renal insufficiency, persistent proteinuria, nephrocalcinosis, and recurrent nephrolithiasis.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Renal ultrasonography showed nephrocalcinosis. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia. (NOTE: no transcript identifier given but they refer to this as the same variant as R76W).

PMID: 28693455 - Walsh et al 2917 - 1 case of mother and son with heterozygous c.187C > T; p.Arg63Trp in HNF4A and Renal Fanconi syndrome. Mother is reported to have mild nephrocalcinosis

PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T), (NM_000457) which is a known disease-causing MODY1 mutation in HNF4A. Nephrocalcinosis not specifically mentioned.

No nephrocalcinosis reported:
PMID: 28458902 - Clemente et al 2017 - 1 patient with congenital hyperinsulinaemic hypoglycaemia, rickets with craniotabes, wrist widening, genu varum and motor impairment. non-gap metabolic acidosis with acidified urine suggestive of proximal tubular acidosis, glycosuria with generalised aminoaciduria and tubular type proteinuria. Says this patient did NOT have the same ‘atypical’ Fanconi syndrome with hypercalciuria with relative hypocalcaemia, hypermagnesaemia, nephrocalcinosis and renal impairment as the patients reported by Hamilton et al 2014. A de novo variant p.Arg63Trp, c.187C > T (reference sequence: NM_175914.4) was found.

PMID: 27245055 - Improda et al 2016 - 2 infants with the p.R63W mutation HNF4A with macrosomia and atypical Fanconi syndrome, in addition to hyperinsulinaemic hypoglycaemia. No nephrocalcinosis reported but this may be due to young age.
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams changed review comment from: Summary
3 publications (Hamilton et al 2014, Lui et al 2018, Walsh et al 2017) report 6 cases of patients with R76W/R63W variants in which nephrocalcinosis is a feature. Fly model (Marchesin et al 2019) shows that the equivalent variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect.; to: Summary
4 publications (Hamilton et al 2014, Lui et al 2018, Walsh et al 2017, Anyiam et al 2019) report 7 cases of patients with R76W/R63W variants in which nephrocalcinosis is a feature. Fly model (Marchesin et al 2019) shows that the equivalent variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect.
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams commented on gene: HNF4A: Summary
3 publications (Hamilton et al 2014, Lui et al 2018, Walsh et al 2017) report 6 cases of patients with R76W/R63W variants in which nephrocalcinosis is a feature. Fly model (Marchesin et al 2019) shows that the equivalent variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect.
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams changed review comment from: Note the same codon is reported as R76W and R63W in different paper depending on whether NM_000457 or NM_175914 is used as the reference transcript.

Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Renal ultrasonography showed nephrocalcinosis. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia. (NOTE: This seems to be the same codon as the R76W variant as the paper refers to it as such).


PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T), (NM_000457) which is a known disease-causing MODY1 mutation in HNF4A. Nephrocalcinosis not specifically mentioned.

No nephrocalcinosis reported:
PMID: 28458902 - Clemente et al 2017 - 1 patient with congenital hyperinsulinaemic hypoglycaemia, rickets with craniotabes, wrist widening, genu varum and motor impairment. non-gap metabolic acidosis with acidified urine suggestive of proximal tubular acidosis, glycosuria with generalised aminoaciduria and tubular type proteinuria. Says this patient did NOT have the same ‘atypical’ Fanconi syndrome with hypercalciuria with relative hypocalcaemia, hypermagnesaemia, nephrocalcinosis and renal impairment as the patients reported by Hamilton et al 2014. A de novo variant p.Arg63Trp, c.187C > T (reference sequence: NM_175914.4) was found.
; to: Note the same codon is reported as R76W and R63W in different paper depending on whether NM_000457 or NM_175914 is used as the reference transcript.

Additional papers including those cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Renal ultrasonography showed nephrocalcinosis. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia. (NOTE: no transcript identifier given but they refer to this as the same variant as R76W).

PMID: 28693455 - Walsh et al 2917 - 1 case of mother and son with heterozygous c.187C > T; p.Arg63Trp in HNF4A and Renal Fanconi syndrome. Mother is reported to have mild nephrocalcinosis

PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T), (NM_000457) which is a known disease-causing MODY1 mutation in HNF4A. Nephrocalcinosis not specifically mentioned.

No nephrocalcinosis reported:
PMID: 28458902 - Clemente et al 2017 - 1 patient with congenital hyperinsulinaemic hypoglycaemia, rickets with craniotabes, wrist widening, genu varum and motor impairment. non-gap metabolic acidosis with acidified urine suggestive of proximal tubular acidosis, glycosuria with generalised aminoaciduria and tubular type proteinuria. Says this patient did NOT have the same ‘atypical’ Fanconi syndrome with hypercalciuria with relative hypocalcaemia, hypermagnesaemia, nephrocalcinosis and renal impairment as the patients reported by Hamilton et al 2014. A de novo variant p.Arg63Trp, c.187C > T (reference sequence: NM_175914.4) was found.

PMID: 27245055 - Improda et al 2016 - 2 infants with the p.R63W mutation HNF4A with macrosomia and atypical Fanconi syndrome, in addition to hyperinsulinaemic hypoglycaemia. No nephrocalcinosis reported but this may be due to young age.
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams changed review comment from: Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia.

PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T) which is a known disease-causing MODY1 mutation in HNF4A.

PMID: 28458902 - to be finished
; to: Note the same codon is reported as R76W and R63W in different paper depending on whether NM_000457 or NM_175914 is used as the reference transcript.

Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Renal ultrasonography showed nephrocalcinosis. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia. (NOTE: This seems to be the same codon as the R76W variant as the paper refers to it as such).


PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T), (NM_000457) which is a known disease-causing MODY1 mutation in HNF4A. Nephrocalcinosis not specifically mentioned.

No nephrocalcinosis reported:
PMID: 28458902 - Clemente et al 2017 - 1 patient with congenital hyperinsulinaemic hypoglycaemia, rickets with craniotabes, wrist widening, genu varum and motor impairment. non-gap metabolic acidosis with acidified urine suggestive of proximal tubular acidosis, glycosuria with generalised aminoaciduria and tubular type proteinuria. Says this patient did NOT have the same ‘atypical’ Fanconi syndrome with hypercalciuria with relative hypocalcaemia, hypermagnesaemia, nephrocalcinosis and renal impairment as the patients reported by Hamilton et al 2014. A de novo variant p.Arg63Trp, c.187C > T (reference sequence: NM_175914.4) was found.
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams changed review comment from: Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model. Used Drosophila nephrocytes as a model for proximal tubules to study the function of HNF4A and the impact of the FRTS-associated R85W mutation. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation promotes the nuclear export of a wild-type reporter protein, thereby reducing transcriptional output in a dominant-negative manner and promoting the formation of cytotoxic dHNF4 aggregates in the cytosol.
Review to be continued.

PMID: 22802087
PMID: 30005691
PMID: 28458902; to: Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model which shows that the R85W variant in Drosophila nephrocytes works in a dominant-negative and cytotoxic effect. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation caused nuclear depletion and cytosolic aggregation of a wild-type dHNF4 reporter protein. The cytosolic aggregates have a cytotoxic affect. By contrast, the expression of another known close mutation in the DNA-binding domain, R89W (that leads to MODY1 but not to FRTS; Hamilton et al., 2014), did not cause any dominant-negative or cytotoxic effects.

PMID: 30005691 - Liu et al 2018 1 case of a 10-year-old girl of Chinese Han ethnicity who presented with renal Fanconi syndrome, infantile hyperinsulinemic hypoglycemia, and transient cholestasis. In addition, she presented with bilateral severe hearing loss. Gene analysis showed a heterozygous p.R63W mutation in the HNF4A gene that is responsible for Fanconi syndrome and hyperinsulinemic hypoglycemia.

PMID: 22802087 - Stanescu et al 2012 - 1 case that presented as a newborn with diazoxide-responsive hyperinsulinism and later developed renal Fanconi syndrome, hypophosphatemic rickets, and hepatic glycogenosis. Sequencing of HNF4A (MODY1) revealed a missense, de novo mutation (p.Arg76Trp, c.226C→T) which is a known disease-causing MODY1 mutation in HNF4A.

PMID: 28458902 - to be finished
Nephrocalcinosis or nephrolithiasis v2.3 HNF4A Eleanor Williams commented on gene: HNF4A: Additional papers cited by Zornitza Stark:

PMID: 31875549 - Marchesin et al 2019 - Fly model. Used Drosophila nephrocytes as a model for proximal tubules to study the function of HNF4A and the impact of the FRTS-associated R85W mutation. Expression of dHNF4 harboring the FRTS mutation affects the catabolism of lipid droplets in nephrocytes by interfering with mitochondrial function. They also showed that the FRTS mutation promotes the nuclear export of a wild-type reporter protein, thereby reducing transcriptional output in a dominant-negative manner and promoting the formation of cytotoxic dHNF4 aggregates in the cytosol.
Review to be continued.

PMID: 22802087
PMID: 30005691
PMID: 28458902
Nephrocalcinosis or nephrolithiasis v2.0 HNF4A Zornitza Stark reviewed gene: HNF4A: Rating: GREEN; Mode of pathogenicity: None; Publications: 31875549, 24285859, 22802087, 30005691, 28458902; Phenotypes: Fanconi renotubular syndrome 4, with maturity-onset diabetes of the young, OMIM #616026; Mode of inheritance: None; Current diagnostic: yes
Nephrocalcinosis or nephrolithiasis v1.50 HNF4A Eleanor Williams Phenotypes for gene: HNF4A were changed from to Fanconi renotubular syndrome 4, with maturity-onset diabetes of the young, 616026
Nephrocalcinosis or nephrolithiasis v1.49 HNF4A Eleanor Williams Publications for gene: HNF4A were set to
Nephrocalcinosis or nephrolithiasis v1.24 HNF4A Eleanor Williams Classified gene: HNF4A as Amber List (moderate evidence)
Nephrocalcinosis or nephrolithiasis v1.24 HNF4A Eleanor Williams Added comment: Comment on list classification: Promoting from red to amber. Only one paper (PMID: 24285859) reporting variants in this gene associated with Fanconi syndrome and nephrocalcinosis and all patients have the same variant. Another paper reports that individuals with that variant have congenital hyperinsulinism and Fanconi syndrome but no nephrocalcinosis, however they are younger than the previously reported patients. Rating amber for now until another report confirms the association.
Nephrocalcinosis or nephrolithiasis v1.24 HNF4A Eleanor Williams Gene: hnf4a has been classified as Amber List (Moderate Evidence).
Nephrocalcinosis or nephrolithiasis v1.23 HNF4A Detlef Bockenhauer reviewed gene: HNF4A: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Nephrocalcinosis or nephrolithiasis v1.22 HNF4A Eleanor Williams commented on gene: HNF4A