Gene Summary

branched chain ketoacid dehydrogenase E1, alpha polypeptide

IMPC Phenotype Summary

Not Significant
Not tested


The IMPC applies a panel of phenotyping screens to characterise single-gene knockout mice by comparison to wild types. Click on the different tabs to visualise significant phenotypes identified by the IMPC, as well as all data that was measured.

Phenotype System Allele Zyg Sex Life Stage P Value
preweaning lethality, complete penetrance Bckdhaem1(IMPC)Tcp HOM   Early adult 0.00
small seminal vesicle Bckdhaem1(IMPC)Tcp HET Early adult 0.00
increased neutrophil cell number Bckdhaem1(IMPC)Tcp HET Early adult 1.93×10-16
decreased lymphocyte cell number Bckdhaem1(IMPC)Tcp HET Early adult 3.57×10-15

Download data as:  TSV  XLS

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lacZ Expression

Expression data not available

Associated Images

Images submitted by IMPC centres for a selection of procedures. Each set of images is available to view in our image comparator.

Gross Morphology Embryo E14.5-E15.5


9 Images


XRay Images Skull Dorso Ventral Orientation

10 Images


XRay Images Whole Body Dorso Ventral

10 Images


XRay Images Whole Body Lateral Orientation

10 Images

MicroCT E14.5-E15.5

Embryo reconstruction

8 Images


XRay Images Skull Lateral Orientation

10 Images

Gross Pathology and Tissue Collection


8 Images


Panel B FCS file(s)

2 Images


Panel A FCS file(s)

2 Images

Human diseases caused by Bckdha mutations

The analysis uses data from IMPC, along with published data on other mouse mutants, in comparison to human disease reports in OMIM, Orphanet, and DECIPHER.

Phenotype comparisons summarize the similarity of mouse phenotypes with human disease phenotypes.

The table below shows human diseases associated to Bckdha by orthology or direct annotation.

Disease Similarity of
Matching phenotypes Source
Maple Syrup Urine Disease, Type Ia

The table below shows human diseases predicted to be associated to Bckdha by phenotypic similarity.

Disease Similarity of
Matching phenotypes Source
Carbimazole Sensitivity
Drug-induced agranulocytosis OMIM:212060
Undritz Anomaly
Hypersegmentation of neutrophil nuclei OMIM:191500
Diamond-Blackfan Anemia 18
Steroid-responsive anemia, Erythroid hypoplasia, Neutropenia OMIM:618310
Neutropenia, Severe Congenital, 2, Autosomal Dominant
B lymphocytopenia, Monocytosis, Neutropenia OMIM:613107
Immunodeficiency 50
Neutropenia, Lymphopenia OMIM:300988
Neutrophilia, Hereditary
Neutrophilia, Splenomegaly OMIM:162830
Immunodeficiency 53
Neutrophilia, Impaired lymphocyte transformation with phytohemagglutinin OMIM:617585
Myelolymphatic Insufficiency
Leukopenia, Hyposegmentation of neutrophil nuclei OMIM:310350
Neutropenia, Severe Congenital, 7, Autosomal Recessive
Neutropenia OMIM:617014
Reticular Dysgenesis
Congenital agranulocytosis, Leukopenia, Hypoplasia of the thymus, Lymphopenia OMIM:267500
Neutropenia, Lethal Congenital, With Eosinophilia
Eosinophilia, Neutropenia OMIM:257100
Neutropenia, Nonimmune Chronic Idiopathic, Of Adults
Acute myeloid leukemia, Neutropenia OMIM:607847
Specific Granule Deficiency 1
Abnormal neutrophil count, Hyposegmentation of neutrophil nuclei, Impaired neutrophil bactericida... OMIM:245480
Immunodeficiency 24
Decreased proportion of memory B cells, Reduced proportion of mucosal-associated invariant T cell... OMIM:615897
Neutropenia, Severe Congenital, 1, Autosomal Dominant
Anemia, Thrombocytosis, Congenital agranulocytosis, Acute monocytic leukemia, Eosinophilia, Monoc... OMIM:202700
Short-Limb Skeletal Dysplasia With Severe Combined Immunodeficiency
Hypoplasia of the thymus, Lymphopenia OMIM:200900
Lymphopenic Hypergammaglobulinemia, Antibody Deficiency, Autoimmune Hemolytic Anemia, And Glomerulonephritis
Autoimmune hemolytic anemia, Plasmacytosis, Lymphopenia OMIM:247800
Neutropenia, Severe Congenital, 10, Autosomal Recessive
Anorectal abscess, Anemia, Thrombocytopenia, Monocytosis, Neutropenia OMIM:620534
Immunodeficiency 21
Aplastic anemia, Cervical intraepithelial neoplasia, Anemia, Neutropenia, B lymphocytopenia, Lymp... OMIM:614172
Immunodeficiency 18
Decreased proportion of CD3-positive T cells, Abnormal lymphocyte count, Abnormal B cell count, L... OMIM:615615
Immunodeficiency Due To Interleukin-1 Receptor-Associated Kinase-4 Deficiency
Neutropenia ORPHA:70592
X-Linked Severe Congenital Neutropenia
Monocytopenia, Neutropenia ORPHA:86788
Combined Cellular And Humoral Immune Defects With Granulomas
B lymphocytopenia, T lymphocytopenia OMIM:233650
Agammaglobulinemia 7, Autosomal Recessive
Abnormal T cell morphology, Reduced natural killer cell count, Neutropenia OMIM:615214
Neutropenia, Severe Congenital, X-Linked
Monocytopenia, Decreased CD4:CD8 ratio, Neutropenia OMIM:300299
Anemia, Sideroblastic, 5
Reduced hematocrit, Hypochromic microcytic anemia, Anemia, Thrombocytopenia, Neutropenia OMIM:619523
Immunodeficiency 105
Impaired lymphocyte transformation with phytohemagglutinin, Pancytopenia, B lymphocytopenia, Incr... OMIM:619924
Immunodeficiency 52
Abnormal natural killer cell count, T lymphocytopenia, Splenomegaly, Abnormal B cell count, Lymph... OMIM:617514
Immunodeficiency 8 With Lymphoproliferation
Lymphopenia OMIM:615401
Myalgia-Eosinophilia Syndrome Associated With Tryptophan
Eosinophilia, Lymphopenia ORPHA:2582
Autoimmune Hemolytic Anemia-Autoimmune Thrombocytopenia-Primary Immunodeficiency Syndrome
Autoimmune hemolytic anemia, Splenomegaly, Lymphopenia, Autoimmune thrombocytopenia, Hemolytic an... ORPHA:444463
Monosomy 7 Myelodysplasia And Leukemia Syndrome 2
Anemia, Acute myeloid leukemia, Pancytopenia, Increased mean corpuscular volume, Thrombocytopenia... OMIM:619041
Cernunnos-Xlf Deficiency
Anemia, B lymphocytopenia, T lymphocytopenia, Thrombocytopenia, Lymphopenia ORPHA:169079
Immunodeficiency 76
B lymphocytopenia, Lymphopenia, Splenomegaly, T lymphocytopenia OMIM:619164
Immunodeficiency 13
B lymphocytopenia, T lymphocytopenia, Decreased proportion of CD4-positive helper T cells, Lympho... OMIM:615518
Transcobalamin Deficiency
Neutropenia, Lymphopenia, Thrombocytopenia, Pancytopenia ORPHA:859
Diaph1-Related Sensorineural Hearing Loss-Thrombocytopenia Syndrome
Increased mean platelet volume, Thrombocytopenia, Iron deficiency anemia, Neutropenia ORPHA:494444
Neutropenia, Severe Congenital, 5, Autosomal Recessive
Anemia, Thrombocytopenia, Splenomegaly, Leukopenia, Extramedullary hematopoiesis, Neutropenia OMIM:615285
Immunodeficiency 73A With Defective Neutrophil Chemotaxis And Leukocytosis
Macrocytic anemia, Rectal abscess, Reduction of neutrophil motility, Leukocytosis, Neutrophilia, ... OMIM:608203
Felty Syndrome
Splenomegaly, Neutropenia OMIM:134750
Ras-Associated Autoimmune Leukoproliferative Disorder
Pancytopenia, Lymphocytosis, Splenomegaly, Hemolytic anemia, Autoimmune thrombocytopenia, Monocyt... OMIM:614470
Immunodeficiency 99 With Hypogammaglobulinemia And Autoimmune Cytopenias
Decreased proportion of CD4+CD25+ regulatory T cells, Autoimmune thrombocytopenia, Lymphopenia, D... OMIM:619846
Alpha-Thalassemia-Myelodysplastic Syndrome
Acute leukemia, HbH hemoglobin, Thrombocytopenia, Splenomegaly, Microcytic anemia, Neutropenia ORPHA:231401
Immunodeficiency 95
Lymphopenia OMIM:619773
Epidermodysplasia Verruciformis, Susceptibility To, 5
Lymphopenia, T lymphocytopenia OMIM:618309
Combined Immunodeficiency Due To Partial Rag1 Deficiency
Autoimmune hemolytic anemia, Neutropenia in presence of anti-neutropil antibodies, B lymphocytope... ORPHA:231154
Amegakaryocytic Thrombocytopenia, Congenital, 2
Aplastic anemia, Anemia, Pancytopenia, Thrombocytopenia, Neutropenia OMIM:620481
Ziegler-Huang Syndrome
Macrocytic anemia, Anterior pituitary hypoplasia, Persistence of hemoglobin F, Elevated circulati... OMIM:620501
Radioulnar Synostosis With Amegakaryocytic Thrombocytopenia 2
Anemia, Hydrocele testis, Thrombocytopenia, Hepatosplenomegaly, Congenital thrombocytopenia, Neut... OMIM:616738
Thrombocytopenia 5
Anemia, Increased mean corpuscular volume, B Acute Lymphoblastic Leukemia, Thrombocytopenia, Neut... OMIM:616216
Immunodeficiency 14B, Autosomal Recessive
Monocytosis, B lymphocytopenia, Leukocytosis, Neutrophilia, Thrombocytosis OMIM:619281
Hemochromatosis, Type 3
Neutropenia, Anemia, Hypogonadotropic hypogonadism, Lymphopenia OMIM:604250
Adult Idiopathic Neutropenia
Monocytopenia, Monocytosis, Neutropenia, Lymphopenia ORPHA:2688
Bone Marrow Failure Syndrome 6
Anemia, Increased mean corpuscular volume, Persistence of hemoglobin F, Lymphopenia, Neutropenia OMIM:618849
Autoinflammatory Syndrome, Familial, Behcet-Like 1
Genital ulcers, Thrombocytopenia, Hemolytic anemia, Lymphopenia OMIM:616744
T-B+ Severe Combined Immunodeficiency Due To Il-7Ralpha Deficiency
Decreased proportion of CD8-positive T cells, Decreased proportion of CD3-positive T cells, Lymph... ORPHA:169154
Immunodeficiency 73B With Defective Neutrophil Chemotaxis And Lymphopenia
Pancytopenia, B lymphocytopenia, T lymphocytopenia, Leukopenia, Hepatosplenomegaly, Lymphopenia, ... OMIM:618986
Immunodeficiency 97 With Autoinflammation
Autoimmune hemolytic anemia, Decreased proportion of CD8-positive T cells, Hemophagocytosis, Decr... OMIM:619802
Combined Immunodeficiency And Megaloblastic Anemia With Or Without Hyperhomocysteinemia
Macrocytic anemia, Pancytopenia, Hypersegmentation of neutrophil nuclei, Megaloblastic anemia, An... OMIM:617780
Diamond-Blackfan Anemia 4
Reticulocytopenia, Erythroid hypoplasia, Macrocytic anemia, Neutropenia OMIM:612527
Disabling Pansclerotic Morphea Of Childhood
Neutropenia, Lymphopenia OMIM:620443
Immunodeficiency 32B
Anemia, Monocytopenia, Neutrophilia, Thrombocytopenia, Splenomegaly, Eosinophilia, Impaired oxida... OMIM:226990
Systemic Lupus Erythematosus 17
Thrombocytopenia, Autoimmune thrombocytopenia, Leukopenia, Lymphopenia OMIM:301080
Immunodeficiency 44
Lymphopenia OMIM:616636
Immunodeficiency 67
Liver abscess, Abnormal natural killer cell count, Abnormal T cell count, Transient neutropenia, ... OMIM:607676
Severe Combined Immunodeficiency Due To Adenosine Deaminase Deficiency
B lymphocytopenia, Lymphopenia, T lymphocytopenia ORPHA:277
Corticosteroid-Sensitive Aseptic Abscess Syndrome
Liver abscess, Anemia, Abnormal testis morphology, Neutrophilia, Brain abscess ORPHA:54251
Immunodeficiency 85 And Autoimmunity
T lymphocytopenia, Decreased proportion of CD4-positive helper T cells, Lymphopenia, Decreased pr... OMIM:619510
Pulmonary Fibrosis And/Or Bone Marrow Failure Syndrome, Telomere-Related, 7
Thrombocytopenia, Cryptorchidism, Anemia, Lymphopenia OMIM:620365
Autosomal Dominant Severe Congenital Neutropenia
Aplastic anemia, Acute myeloid leukemia, Acute lymphoblastic leukemia, Lymphopenia, Eosinophilia,... ORPHA:486
Congenital Disorder Of Glycosylation, Type Iic
Reduction of neutrophil motility, Neutrophilia OMIM:266265
Anemia, X-Linked, With Or Without Neutropenia And/Or Platelet Abnormalities
Macrocytic anemia, Poikilocytosis, Elliptocytosis, Anisocytosis, Thrombocytopenia, Abnormal retic... OMIM:300835
Immunodeficiency 49
Impaired lymphocyte transformation with phytohemagglutinin, T lymphocytopenia, Decreased proporti... OMIM:617237
Immunodeficiency 36 With Lymphoproliferation
Chronic lymphatic leukemia, B lymphocytopenia, Increased proportion of transitional B cells, Decr... OMIM:616005
T-Cell Immunodeficiency With Thymic Aplasia
Aplasia of the thymus, T lymphocytopenia, Hepatosplenomegaly, Lymphopenia, Abnormally low T cell ... OMIM:242700
Aplasia Cutis Congenita With Intestinal Lymphangiectasia
Lymphopenia OMIM:207731
Lymphangiectasia, Intestinal
Lymphopenia OMIM:152800
Pulmonary Fibrosis And/Or Bone Marrow Failure Syndrome, Telomere-Related, 6
Abnormally low T cell receptor excision circle level, Lymphopenia, Pancytopenia OMIM:619767
Deafness-Lymphedema-Leukemia Syndrome
Acute leukemia, Abnormal neutrophil count, Myeloproliferative disorder, Leukocytosis, Thrombocyto... ORPHA:3226
Severe Combined Immunodeficiency Due To Complete Rag1/2 Deficiency
Autoimmune hemolytic anemia, Abnormal natural killer cell count, Decreased proportion of CD3-posi... ORPHA:331206
Severe Combined Immunodeficiency With Sensitivity To Ionizing Radiation
Genital ulcers, Aplasia of the thymus, B lymphocytopenia, Splenomegaly, Lymphopenia, Abnormally l... OMIM:602450
Hyper-Ige Syndrome 4A, Autosomal Dominant, With Recurrent Infections
Reduced natural killer cell count, Neutropenia, Cutaneous abscess, Lymphopenia OMIM:619752
Mirage Syndrome
Anemia, Hypospadias, Hypergonadotropic hypogonadism, Decreased testicular size, Microphallus, Hyp... OMIM:617053
T-B+ Severe Combined Immunodeficiency Due To Cd3Delta/Cd3Epsilon/Cd3Zeta
Decreased proportion of CD3-positive T cells, Eosinophilia, Hepatosplenomegaly, Lymphopenia ORPHA:169160
Decreased proportion of CD3-positive T cells, Neutropenia in presence of anti-neutropil antibodie... ORPHA:443811
Systemic Mastocytosis With Associated Hematologic Neoplasm
Normocytic anemia, Acute myeloid leukemia, Normochromic anemia, Chronic lymphatic leukemia, Chron... ORPHA:98849
Hemolytic Uremic Syndrome, Atypical, 8, With Rhizomelic Short Stature
Anemia, Schistocytosis, Leukopenia, Thrombocytopenia, Lymphopenia, Hemolytic anemia, Neutropenia OMIM:301110
T-B+ Severe Combined Immunodeficiency Due To Gamma Chain Deficiency
Decreased proportion of CD3-positive T cells, Decreased proportion of naive T cells, Decreased pr... ORPHA:276
Relapsing Fever
Anemia, Leukocytosis, Neutrophilia, Thrombocytopenia, Leukopenia ORPHA:91547
Cyclic Neutropenia
Perianal abscess, Lymphopenia, Tooth abscess, Thrombocytopenia, Decreased eosinophil count, Cycli... ORPHA:2686
Purine Nucleoside Phosphorylase Deficiency
Abnormal T cell morphology, Autoimmune hemolytic anemia, Decreased proportion of CD3-positive T c... ORPHA:760
Granulomatous Disease, Chronic, Autosomal Recessive, 5
Perianal abscess, Granuloma, Hepatosplenomegaly, Splenomegaly, Abscess, Lymphopenia, Impaired oxi... OMIM:618935
Immunodeficiency 55
Absent natural killer cells, Neutropenia, Lymphopenia OMIM:617827
Severe Combined Immunodeficiency, Autosomal Recessive, T Cell-Negative, B Cell-Positive, Nk Cell-Negative
Absent natural killer cells, Lymphopenia, Impaired lymphocyte transformation with phytohemaggluti... OMIM:600802
Icf Syndrome
Abnormality of neutrophils, Anemia, Lymphopenia ORPHA:2268
Cryptogenic Organizing Pneumonia
Neutrophilia, Leukocytosis ORPHA:1302
Psoriasis 14, Pustular
Neutrophilia, Leukocytosis OMIM:614204
T-B+ Severe Combined Immunodeficiency Due To Jak3 Deficiency
Impaired lymphocyte transformation with phytohemagglutinin, Rectovaginal fistula, B lymphocytopen... ORPHA:35078
Neutropenia, Severe Congenital, 4, Autosomal Recessive
Perianal abscess, Anemia, Erythroid hypoplasia, Hypoplasia of the thymus, Cryptorchidism, Leukope... OMIM:612541
Autoinflammation, Panniculitis, And Dermatosis Syndrome
Neutrophilia, Leukocytosis, Increased proportion of CD4-positive T cells OMIM:617099
Acute Generalized Exanthematous Pustulosis
Eosinophilia, Neutrophilia, Leukocytosis, Neutropenia ORPHA:293173
Congenital Progressive Bone Marrow Failure-B-Cell Immunodeficiency-Skeletal Dysplasia Syndrome
Anemia, B lymphocytopenia, Reticulocytopenia, Leukopenia, Thrombocytopenia, Lymphopenia, Neutropenia ORPHA:508542
Severe Combined Immunodeficiency, Autosomal Recessive, T Cell-Negative, B Cell-Negative, Nk Cell-Negative, Due To Adenosine Deaminase Deficiency
Autoimmune hemolytic anemia, Reduced red cell adenosine deaminase level, B lymphocytopenia, Lymph... OMIM:102700
Abnormal neutrophil count ORPHA:723
Immunodeficiency 113 With Autoimmunity And Autoinflammation
Autoimmune hemolytic anemia, Leukocytosis, Neutrophilia, Splenomegaly, Autoimmune thrombocytopeni... OMIM:620565
Whim Syndrome
Neutropenia, Parotitis, Abnormal neutrophil morphology, Lymphopenia, Cervix cancer ORPHA:51636
Sweet Syndrome
Anemia, Acute myeloid leukemia, Chronic lymphatic leukemia, Sterile abscess, Leukocytosis, Neutro... ORPHA:3243
Wiskott-Aldrich Syndrome
Autoimmune hemolytic anemia, Impaired lymphocyte transformation with phytohemagglutinin, Decrease... OMIM:301000
Familial Mediterranean Fever
Orchitis, Neutrophilia, Leukocytosis, Splenomegaly OMIM:249100
Maple Syrup Urine Disease, Type Ia


Summary table of phenotypes displayed during the Histopathology procedure which are considered significant. Full histopathology data table, including submitted images, can be accessed by clicking any row in this table.

There is no histopathology data for Bckdha

IMPC related publications

The table below lists publications which used either products generated by the IMPC or data produced by the phenotyping efforts of the IMPC. These publications have also been associated to Bckdha.

There are 3 publications which use IMPC produced mice or data.

Title Journal IMPC Allele PubMed ID
Neonatal gene therapy achieves sustained disease rescue of maple syrup urine disease in mice. Nature communications (June 2022) Bckdhaem1(IMPC)Tcp PMC9174284
Metabolic flexibility via mitochondrial BCAA carrier SLC25A44 is required for optimal fever. eLife (May 2021) Bckdhatm1a(EUCOMM)Hmgu PMC8137140
BCAA catabolism in brown fat controls energy homeostasis through SLC25A44. Nature (August 2019) Bckdhatm1a(EUCOMM)Hmgu 31435015

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MGI Allele Allele Type Produced
Bckdhaem1(IMPC)Tcp Exon Deletion Mice
Bckdhatm1a(EUCOMM)Hmgu KO first allele (reporter-tagged insertion with conditional potential) Targeting vectors, ES Cells
Bckdhatm1e(EUCOMM)Hmgu Targeted, non-conditional allele ES Cells

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