Table 5.8.1
Mutations leading to the syndrome of generalized glucocorticoid resistance (a nonsuppressable hypercortisolaemia was present in all patients)
Year Domain (non) coding region Mutation Ligand affinity Transactivating capacity Other in vitro observations Clinical features References

1982

LB

Exon 7

Asp641Val

↓ (3-fold)

↓↓

Transrespressional capacity =

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

mRNA GR copy number after EBV transformation ↓

Hypertension, hypokalaemia

(2, 3, 4, 5)

1990

LB

Exon 9α

Val729Ile

↓ (4-fold)

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Isosexual precocious pseudopuberty in a boy, hyperandrogenism

(3, 6, 7)

1993

LB

Exon 6/

intron 6

4-base deletion (2013delGAGT)

Not tested

Removal of a donor splice site, expression of only one allele and a 50% decrease of GR protein on PBMLs and EBV transformed lymphoblasts

Hirsutism, menstrual irregularities, male-pattern baldness

(4, 8)

1996

DB

Exon 5

Ile559Asn

=

binding sites by 50% ↓

Dominant-negative effect on transactivation of the wild-type GR

Transrespressional capacity↓

mRNA GR copy number after EBV transformation ↓

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Hypertension, infertility, oligospermia, and secondary pituitary Cushing’s disease

(3, 4, 9,10)

2001

DB

Exon 4

Arg477His

=

↓↓

In a structural model the mutant GR seems to have no contact with the GRE of the target gene

Hypertension, hirsutism, fatigue, obesity

(11, 12)

2001

LB

Exon 8

Gly679Ser

↓(2-fold)

In heterozygous carriers the effect of the mutation was abolished when also the ER22/23EK polymorphism was present

Asymptomatic, hypertension, hypokalaemia hirsutism, fatigue,

hyperandrogenism

A dosage–allele effect was observed

(11, 12, 13)

2002

DB

Exon 5

Val571Ala

↓ (6-fold)

↓ (10- to 50-fold)

Delayed nuclear translocation

Hypertension, hypokalaemia, hyperandrogenism, female pseudohermaphroditism

(3, 14)

2002

LB

Exon 9α

Ile747Met

↓ (2-fold)

↓↓ (20- to 30-fold)

Dominant negative effect on the wild-type GR

Abnormal interaction with p160 coactivators due to an ineffective AF-2 domain

Asymptomatic, cystic acne, hirsutism, oligoamenorrhoea

(3, 15)

2005

LB

Exon 9α

Leu773Pro

↓ (2.6-fold)

↓(2-fold)

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Dominant negative effect on the wild-type GR

Hypertension, chronic fatigue, anxiety, hyperandrogenism,

(16)

2006

LB

Intron 8

G→A, +81 bp exon 8 and

C→G -9 bp exon 9

Not tested

Transrespressional capacity =

Expression of the GR-β splice variant ↑ (4-fold)

Despite low dose immunosuppressive medication 33 years after post mortem renal transplantation still uneventful

(4)

2007

LB

Exon 9α

Phe737Leu

↓ (1.5-fold)

Delayed nuclear translocation

Hypertension, hypokalaemia

(17)

Year Domain (non) coding region Mutation Ligand affinity Transactivating capacity Other in vitro observations Clinical features References

1982

LB

Exon 7

Asp641Val

↓ (3-fold)

↓↓

Transrespressional capacity =

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

mRNA GR copy number after EBV transformation ↓

Hypertension, hypokalaemia

(2, 3, 4, 5)

1990

LB

Exon 9α

Val729Ile

↓ (4-fold)

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Isosexual precocious pseudopuberty in a boy, hyperandrogenism

(3, 6, 7)

1993

LB

Exon 6/

intron 6

4-base deletion (2013delGAGT)

Not tested

Removal of a donor splice site, expression of only one allele and a 50% decrease of GR protein on PBMLs and EBV transformed lymphoblasts

Hirsutism, menstrual irregularities, male-pattern baldness

(4, 8)

1996

DB

Exon 5

Ile559Asn

=

binding sites by 50% ↓

Dominant-negative effect on transactivation of the wild-type GR

Transrespressional capacity↓

mRNA GR copy number after EBV transformation ↓

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Hypertension, infertility, oligospermia, and secondary pituitary Cushing’s disease

(3, 4, 9,10)

2001

DB

Exon 4

Arg477His

=

↓↓

In a structural model the mutant GR seems to have no contact with the GRE of the target gene

Hypertension, hirsutism, fatigue, obesity

(11, 12)

2001

LB

Exon 8

Gly679Ser

↓(2-fold)

In heterozygous carriers the effect of the mutation was abolished when also the ER22/23EK polymorphism was present

Asymptomatic, hypertension, hypokalaemia hirsutism, fatigue,

hyperandrogenism

A dosage–allele effect was observed

(11, 12, 13)

2002

DB

Exon 5

Val571Ala

↓ (6-fold)

↓ (10- to 50-fold)

Delayed nuclear translocation

Hypertension, hypokalaemia, hyperandrogenism, female pseudohermaphroditism

(3, 14)

2002

LB

Exon 9α

Ile747Met

↓ (2-fold)

↓↓ (20- to 30-fold)

Dominant negative effect on the wild-type GR

Abnormal interaction with p160 coactivators due to an ineffective AF-2 domain

Asymptomatic, cystic acne, hirsutism, oligoamenorrhoea

(3, 15)

2005

LB

Exon 9α

Leu773Pro

↓ (2.6-fold)

↓(2-fold)

Delayed nuclear translocation

Abnormal interaction with the GR-interacting protein 1 coactivator

Dominant negative effect on the wild-type GR

Hypertension, chronic fatigue, anxiety, hyperandrogenism,

(16)

2006

LB

Intron 8

G→A, +81 bp exon 8 and

C→G -9 bp exon 9

Not tested

Transrespressional capacity =

Expression of the GR-β splice variant ↑ (4-fold)

Despite low dose immunosuppressive medication 33 years after post mortem renal transplantation still uneventful

(4)

2007

LB

Exon 9α

Phe737Leu

↓ (1.5-fold)

Delayed nuclear translocation

Hypertension, hypokalaemia

(17)

↓, reduced; ↓↓, severely reduced; =, unaltered.

DB, DNA binding domain; EBV, Epstein–Barr virus; GR, glucocorticoid receptor; GRE, glucocorticoid responsive element; LB, ligand-binding domain; PBML, peripheral blood mononuclear leucocytes.

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