About   Help   FAQ
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 (32 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 (32 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 (32 available)
Gdf6tm1Kng mutation (2 available); any Gdf6 mutation (26 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 (40 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (32 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 (40 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (32 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 (40 available)
Gdf5bp-J mutation (2 available); any Gdf5 mutation (32 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





Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/19/2024
MGI 6.24
The Jackson Laboratory