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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gdf5bp-J
brachypodism Jackson
MGI:1855974
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Gdf5bp-J/Gdf5bp-J A/J-Gdf5bp-J/J MGI:3702968
ht2
Gdf5bp-J/Gdf5+ A/J-Gdf5bp-J/J MGI:3789179
cx3
Gdf5bp-J/Gdf5bp-J
Gdf6tm1Kng/Gdf6tm1Kng
involves: 129S1/Sv * 129X1/SvJ * A/J * C57BL/6J MGI:2661079
cx4
Bmpr1btm1Kml/Bmpr1b+
Gdf5bp-J/Gdf5+
involves: 129S/SvEv * A/J * C57BL/6J MGI:3789180
cx5
Bmpr1btm1Kml/Bmpr1btm1Kml
Gdf5bp-J/Gdf5bp-J
involves: 129S/SvEv * A/J * C57BL/6J MGI:3789181
cx6
Bmpr1bTg(ACTB-FLP)4917Dym/Bmpr1bTg(ACTB-FLP)4917Dym
Gdf5bp-J/Gdf5bp-J
involves: A/J * C57BL/6 * SJL MGI:3702969


Genotype
MGI:3702968
hm1
Allelic
Composition
Gdf5bp-J/Gdf5bp-J
Genetic
Background
A/J-Gdf5bp-J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
embryo
• mesenchyme from mutant mice shows a reduced ability to form aggregates and cartilaginous nodules in vitro

limbs/digits/tail
• feet are much shorter than controls
• the reduction in length of the feet is largely the result of altered patterning of segments in the digits
• mice have unusual sesamoid morphology
• slight disorganization of the carpals and tarsals
• P1 and P2 are replaced by a single rudimentary element (P1/P2)
• the proximal and middle phalanges are reduced
• in place of the proximal and medial phalanges is a single bone resulting from a fusion of the proximal and medial phalangeal condensations (J:17582)
• the proximal and middle phalanges are fused (J:59282)
• slight disorganization of the carpals and tarsals
• defects in the length of the metacarpals (J:17582)
• defects in the length of the metatarsals (J:17582)
• in mutants, length of long bones of forelimbs and hindlimbs is severely reduced
• mesenchyme from mutant mice shows a reduced ability to form aggregates and cartilaginous nodules in vitro
• digit condensations in mutant mice are thin, malformed, and slow to initiate chondrogenesis

skeleton
• mice have unusual sesamoid morphology
• slight disorganization of the carpals and tarsals
• P1 and P2 are replaced by a single rudimentary element (P1/P2)
• the proximal and middle phalanges are reduced
• in place of the proximal and medial phalanges is a single bone resulting from a fusion of the proximal and medial phalangeal condensations (J:17582)
• the proximal and middle phalanges are fused (J:59282)
• slight disorganization of the carpals and tarsals
• long bones of the limb are slightly shorter
• defects in the length of the metacarpals (J:17582)
• defects in the length of the metatarsals (J:17582)
• mutants exhibit frequent joint dislocations




Genotype
MGI:3789179
ht2
Allelic
Composition
Gdf5bp-J/Gdf5+
Genetic
Background
A/J-Gdf5bp-J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• 46% of heterozygous newborns exhibit delayed ossification of the middle phalanx

skeleton
• 46% of heterozygous newborns exhibit delayed ossification of the middle phalanx
• 46% of heterozygous newborns exhibit delayed ossification of the middle phalanx




Genotype
MGI:2661079
cx3
Allelic
Composition
Gdf5bp-J/Gdf5bp-J
Gdf6tm1Kng/Gdf6tm1Kng
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * A/J * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
Gdf6tm1Kng mutation (2 available); any Gdf6 mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• normal mendelian ratios at birth, with less than 5% surviving to adulthood

skeleton
• a severe reduction or absence of carpal bones is observed
• a severe reduction of the proximal and middle phalanges of the forelimb is observed
• only remnants of phalanges resembling sesamoid bones or fusions of sesamoid bones and phalanges are noted in the forefeet
• at birth, the radius is bowed and appears to be dislocated from the elbow joint
• however, the radius straightens out by adulthood
• the ulna is reduced in size, exposing the pisiform underneath
• the ulna appears poorly ossified and shorter than the radius at late stages of embryogenesis and early postnatal stages but becomes fully ossified by adulthood
• metatarsal II is split into both a dorsal and a ventral element; both elements are fused to the tarsal bones
• in adulthood, 2 of 7 double homozygotes display severe scoliosis with curvatures between 39 and 67 degrees; not observed in newborns
• adult double homozygotes display a reduction of Alcian blue-stained cartilage matrix in the intervertebral articular processes between T13 and L2
• adult double homozygotes display a reduction of Alcian blue-stained cartilage matrix in the tip of spinous processes of vertebrae T12 to L3
• 86% of double homozygotes show fusion of carpal element 4/5 in the forelimb to the proximal end of metacarpal IV; this joint fusion is absent at E18.5 but becomes evident by P6
• 10 of 14 double homozygotes show joint fusions betweeen the metatarsal and proximal phalanx of digit V
• joint fusions between metacarpal and phalange rudiments of multiple digits and between the fibula and calcaneus are also observed
• the ulna appears poorly ossified and shorter than the radius at late stages of embryogenesis and early postnatal stages but becomes fully ossified by adulthood

limbs/digits/tail
• a severe reduction or absence of carpal bones is observed
• a severe reduction of the proximal and middle phalanges of the forelimb is observed
• only remnants of phalanges resembling sesamoid bones or fusions of sesamoid bones and phalanges are noted in the forefeet
• at birth, the radius is bowed and appears to be dislocated from the elbow joint
• however, the radius straightens out by adulthood
• the ulna is reduced in size, exposing the pisiform underneath
• the ulna appears poorly ossified and shorter than the radius at late stages of embryogenesis and early postnatal stages but becomes fully ossified by adulthood
• metatarsal II is split into both a dorsal and a ventral element; both elements are fused to the tarsal bones




Genotype
MGI:3789180
cx4
Allelic
Composition
Bmpr1btm1Kml/Bmpr1b+
Gdf5bp-J/Gdf5+
Genetic
Background
involves: 129S/SvEv * A/J * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmpr1btm1Kml mutation (0 available); any Bmpr1b mutation (37 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• 100% of mutants show delayed ossification of the middle phalanx

skeleton
• 100% of mutants show delayed ossification of the middle phalanx
• 100% of mutants show delayed ossification of the middle phalanx




Genotype
MGI:3789181
cx5
Allelic
Composition
Bmpr1btm1Kml/Bmpr1btm1Kml
Gdf5bp-J/Gdf5bp-J
Genetic
Background
involves: 129S/SvEv * A/J * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmpr1btm1Kml mutation (0 available); any Bmpr1b mutation (37 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• limbs of double homozygotes resemble those of single Gdf5bp-J homozygotes
• fusion of the ulnar carpal and hamate bones
• in the forelimbs, metacarpals I, II and V of newborns are reduced to a greater extent than in either single mutant
• fusions/reductions of sternal and tarsal elements are seen

skeleton
• fusion of the ulnar carpal and hamate bones
• in the forelimbs, metacarpals I, II and V of newborns are reduced to a greater extent than in either single mutant
• fusions/reductions of sternal and tarsal elements are seen




Genotype
MGI:3702969
cx6
Allelic
Composition
Bmpr1bTg(ACTB-FLP)4917Dym/Bmpr1bTg(ACTB-FLP)4917Dym
Gdf5bp-J/Gdf5bp-J
Genetic
Background
involves: A/J * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmpr1bTg(ACTB-FLP)4917Dym mutation (0 available); any Bmpr1b mutation (37 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• mutants have similar defects to Gdf5bp-J homozygotes
• individual metacarpals fail to segment properly from carpal bones
• individual metatarsals fail to segment properly from tarsal bones

skeleton
• individual metacarpals fail to segment properly from carpal bones
• individual metatarsals fail to segment properly from tarsal bones
• digit cartilages fail to develop, but runted pharangeal elements are observed





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