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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Cyp17a1-icre)AJako
transgene insertion A, CheMyong Ko
MGI:3807212
Summary 9 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Creb1tm3Gsc/Creb1tm3Gsc
Tg(Cyp17a1-icre)AJako/0
involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:4949155
cn2
Creb1tm3Gsc/Creb1+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:4949156
cn3
Esr1tm1.2Mma/Esr1tm1.2Mma
Tg(Cyp17a1-icre)AJako/0
involves: 129S2/SvPas * C57BL/6 * SJL MGI:4361176
cn4
Map2k1tm1Chrn/Map2k1tm1Chrn
Map2k2tm1Chrn/Map2k2tm1Chrn
Tg(Cyp17a1-icre)AJako/0
involves: 129/Sv * C57BL/6 * C57BL/6J * SJL MGI:6856826
cn5
Bglap/Bglap2tm3.1Kry/Bglap+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
involves: C57BL/6J MGI:4949151
cn6
Bglap/Bglap2tm3.1Kry/Bglap2+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
involves: C57BL/6J MGI:4949152
cn7
Gprc6atm1.1Kry/Gprc6atm1.1Kry
Tg(Cyp17a1-icre)AJako/0
involves: C57BL/6J MGI:4949150
cn8
Bglap/Bglap2tm3.1Kry/Bglap/Bglap2tm3.1Kry
Tg(Cyp17a1-icre)AJako/0
involves: C57BL/6 * SJL MGI:4949149
cn9
Bglap/Bglap2tm3.1Kry/Bglap/Bglap2tm3.1Kry
Tg(Cyp17a1-icre)AJako/0
involves: C57BL/6 * SJL MGI:4949148


Genotype
MGI:4949155
cn1
Allelic
Composition
Creb1tm3Gsc/Creb1tm3Gsc
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Creb1tm3Gsc mutation (2 available); any Creb1 mutation (59 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• at 12 weeks
• at 12 weeks
• at 12 weeks

homeostasis/metabolism

endocrine/exocrine glands
• at 12 weeks
• at 12 weeks

cellular
• at 12 weeks




Genotype
MGI:4949156
cn2
Allelic
Composition
Creb1tm3Gsc/Creb1+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Creb1tm3Gsc mutation (2 available); any Creb1 mutation (59 available)
Gprc6atm1.1Kry mutation (1 available); any Gprc6a mutation (65 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:4361176
cn3
Allelic
Composition
Esr1tm1.2Mma/Esr1tm1.2Mma
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Esr1tm1.2Mma mutation (0 available); any Esr1 mutation (67 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• following induction of superovulation with PMSG and hCG, the majority of mutant oocytes exhibit signs of degeneration

mortality/aging
• although mutant females display normal fertility and cycling at 2-3 months of age, they gradually lose fertility leading to near complete infertility by 6 months of age

reproductive system
• at 4 months of age, mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females
• following injection of PMSG alone or PMSG+hCG, mutant ovaries develop multiple hemorrhagic follicles, rarely observed in wild-type ovaries
• following induction of superovulation with PMSG and hCG, the majority of mutant oocytes exhibit signs of degeneration
• at 4 months of age, mutant ovaries display interstitial hypertrophy
• at 4 months of age, mutant females display reduced numbers of corpora lutea relative to age-matched control females
• at 4 months of age, mutant females exhibit increased numbers of late preantral and early antral stage follicles
• following induction of superovulation with PMSG +hCG, most theca cells in mutant ovaries are abnormally located in interstitial areas, in contrast to wild-types ovaries where Cyp17-positive cells are mostly found in the theca interna of preovulatory follicles
• following induction of superovulation with PMSG +hCG injections, ovaries of 6-month-old mutant females are more heavily populated with theca (Cyp17-positive) cells than wild-type ovaries
• similarly, on the day of diestrus, ovaries of 4- and 10-month-old mutant females exhibit higher numbers of Cyp17-positive cells than wild-type ovaries
• at 4 months of age, unstimulated mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females
• although mutant females display normal fertility and cycling at 2-3 months of age, they gradually lose fertility leading to near complete infertility by 6 months of age
• following induction of superovulation with PMSG and hCG, significantly fewer numbers of oocytes are retrieved from the oviducts of 6-mo-old mutant females than from age-matched wild-type control females (6 vs 22 oocytes, respectively)
• in contrast, only marginally smaller numbers of oocytes are retrieved at 2 months of age (20 vs 27 oocytes)
• at 4 months of age or later, all mutant females display an irregular pattern of estrous cycles relative to age-matched control littermates
• at 4- and 6 months of age, all mutant females exhibit a prolonged diestrous phase relative to age-matched control littermates
• female mutants become infertile before they reach 6 months of age

growth/size/body
• at 4 months of age, unstimulated mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females

endocrine/exocrine glands
• at 4 months of age, mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females
• following injection of PMSG alone or PMSG+hCG, mutant ovaries develop multiple hemorrhagic follicles, rarely observed in wild-type ovaries
• unexpectedly, at 4 months of age, mutant anterior pituitaries show a 2-fold increase in gonadotroph cell number relative to wild-type controls, with an approximately similar level of LH content in each cell
• at 4 months of age, mutant ovaries display interstitial hypertrophy
• at 4 months of age, mutant females display reduced numbers of corpora lutea relative to age-matched control females
• at 4 months of age, mutant females exhibit increased numbers of late preantral and early antral stage follicles
• following induction of superovulation with PMSG +hCG, most theca cells in mutant ovaries are abnormally located in interstitial areas, in contrast to wild-types ovaries where Cyp17-positive cells are mostly found in the theca interna of preovulatory follicles
• following induction of superovulation with PMSG +hCG injections, ovaries of 6-month-old mutant females are more heavily populated with theca (Cyp17-positive) cells than wild-type ovaries
• similarly, on the day of diestrus, ovaries of 4- and 10-month-old mutant females exhibit higher numbers of Cyp17-positive cells than wild-type ovaries
• at 4 months of age, unstimulated mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females

homeostasis/metabolism
• at 2- and 6-months of age, mutant females exhibit moderately increased basal levels of serum testosterone relative to wild-type control females
• in contrast, no significant differences in serum FSH or estradiol levels are observed
• in mutant females, serum LH levels are either markedly lower (2 months) or undetectable (6 months) relative to those in age-matched wild-type controls

nervous system
• unexpectedly, at 4 months of age, mutant anterior pituitaries show a 2-fold increase in gonadotroph cell number relative to wild-type controls, with an approximately similar level of LH content in each cell

cardiovascular system
• at 4 months of age, mutant females display signs of hemorrhagic ovarian cysts; however, hemorrhagic cysts are significantly fewer than those observed in Esr1tm1.1Mma females
• following injection of PMSG alone or PMSG+hCG, mutant ovaries develop multiple hemorrhagic follicles, rarely observed in wild-type ovaries




Genotype
MGI:6856826
cn4
Allelic
Composition
Map2k1tm1Chrn/Map2k1tm1Chrn
Map2k2tm1Chrn/Map2k2tm1Chrn
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: 129/Sv * C57BL/6 * C57BL/6J * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Map2k1tm1Chrn mutation (1 available); any Map2k1 mutation (92 available)
Map2k2tm1Chrn mutation (1 available); any Map2k2 mutation (35 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• males show no significant differences in testis weight, seminiferous tubule diameter, seminiferous epithelium morphology, expression of Sertoli and germ cell markers, total epididymal sperm count or sperm motility relative to control males
• seminal vesicle weight is significantly reduced at P75 and P180
• although an increase in Leydig cell numbers is observed up to ~P35, the total number of Leydig cells (Cyp11a1 positive cells) per testis is significantly reduced at all ages examined
• Leydig cell hypoplasia is accompanied by reduced testicular expression of several Leydig cell markers
• in culture, primary Leydig cells from 50-day-old males show a drastic reduction in basal testosterone as well as severely impaired testosterone synthesis in response to stimulation with hCG (human choriogonadotropin), dibutyryl(Bt2)cAMP (a permeable cAMP analog), 22OHC (22-hydroxycholesterol) or P5 (pregnenolone)
• however, cAMP accumulation in response to hCG stimulation is normal
• when males are paired with females of known fertility, the average number of pups/littler is significantly lower than that for control males (3.3 +/- 1.9 versus 6.5 +/- 0.6, respectively)
• male fertility starts to decline at ~3 months of age, and by 6 months the cumulative number of pups sired by males paired with fertile females is only ~50% of that sired by control males
• at the end of the 6-month mating period, the number of litters and number of pups/litter are significantly reduced relative to controls from 5.7 +/- 0.2 to 3.8 +/- 0.6 and from 6.2 +/- 0.3 to 4.8 +/- 0.5, respectively, while the number of days between litters is increased from 27 +/- 1 to 31 +/- 1

homeostasis/metabolism
• at P180, males exhibit several signs of hypoandrogenemia, including increased serum LH levels, reduced expression of two renal androgen-responsive genes, and decreased seminal vesicle weight relative to control males
• serum LH levels are significantly increased at P180
• testicular extracts from 180-day-old males show a~40% reduction in intratesticular testosterone levels relative to controls

endocrine/exocrine glands
• seminal vesicle weight is significantly reduced at P75 and P180
• although an increase in Leydig cell numbers is observed up to ~P35, the total number of Leydig cells (Cyp11a1 positive cells) per testis is significantly reduced at all ages examined
• Leydig cell hypoplasia is accompanied by reduced testicular expression of several Leydig cell markers
• in culture, primary Leydig cells from 50-day-old males show a drastic reduction in basal testosterone as well as severely impaired testosterone synthesis in response to stimulation with hCG (human choriogonadotropin), dibutyryl(Bt2)cAMP (a permeable cAMP analog), 22OHC (22-hydroxycholesterol) or P5 (pregnenolone)
• however, cAMP accumulation in response to hCG stimulation is normal

behavior/neurological
• when males are paired with females of known fertility, the number of vaginal plugs is significantly lower than that detected with control males




Genotype
MGI:4949151
cn5
Allelic
Composition
Bglap/Bglap2tm3.1Kry/Bglap+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bglap/Bglap2tm3.1Kry mutation (0 available); any Bglap mutation (13 available)
Gprc6atm1.1Kry mutation (1 available); any Gprc6a mutation (65 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:4949152
cn6
Allelic
Composition
Bglap/Bglap2tm3.1Kry/Bglap2+
Gprc6atm1.1Kry/Gprc6a+
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bglap/Bglap2tm3.1Kry mutation (0 available); any Bglap2 mutation (8 available)
Gprc6atm1.1Kry mutation (1 available); any Gprc6a mutation (65 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:4949150
cn7
Allelic
Composition
Gprc6atm1.1Kry/Gprc6atm1.1Kry
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gprc6atm1.1Kry mutation (1 available); any Gprc6a mutation (65 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:4949149
cn8
Allelic
Composition
Bglap/Bglap2tm3.1Kry/Bglap/Bglap2tm3.1Kry
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bglap/Bglap2tm3.1Kry mutation (0 available); any Bglap2 mutation (8 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• mice exhibit normal male normal reproductive system morphology




Genotype
MGI:4949148
cn9
Allelic
Composition
Bglap/Bglap2tm3.1Kry/Bglap/Bglap2tm3.1Kry
Tg(Cyp17a1-icre)AJako/0
Genetic
Background
involves: C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bglap/Bglap2tm3.1Kry mutation (0 available); any Bglap mutation (13 available)
Tg(Cyp17a1-icre)AJako mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• mice exhibit normal male normal reproductive system morphology





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last database update
04/23/2024
MGI 6.23
The Jackson Laboratory