Human Phenotype Ontology 
Grandparent Node:
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Anemia of inadequate production (HP:0010972)help
Parent Node:
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Macrocytic anemia (HP:0001972)help
..Starting node
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Megaloblastic anemia (HP:0001889)help
Term ID: 1889
Name: Megaloblastic anemia
Synonym: Megaloblastic anaemia
Definition: Anemia characterized by the presence of erythroblasts that are larger than normal (megaloblasts).
Comments:
Reference: HP:0001889
Genes and Diseases:
 
       Child Nodes:
........expandPyrimidine-responsive megaloblastic anemia (HP:0003339) help
........expandFolate-unresponsive megaloblastic anemia (HP:0004826) help
........expandFolate-responsive megaloblastic anemia (HP:0004851) help
........expandThiamine-responsive megaloblastic anemia (HP:0004860) help

 Sister Nodes: 
..expandHyperchromic macrocytic anemia (HP:0004857) help
..expandMacrocytic dyserythropoietic anemia (HP:0005532) help
..expandRefractory macrocytic anemia (HP:0004861) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0001889HP:0001889Megaloblastic anemia0AMN CL E G H8169314604OMIM:618882IMERSLUND-GRASBECK SYNDROME 2; IGS225
HP:0001889HP:0001889Megaloblastic anemia0AMN CL E G H8169314604ORPHA:35858Imerslund-Gräsbeck syndromeHP:0040281 - Very frequent25
HP:0001889HP:0001889Megaloblastic anemia0CBLIF CL E G H26944268OMIM:261000Intrinsic factor deficiency.
HP:0001889HP:0001889Megaloblastic anemia0CUBN CL E G H80292548ORPHA:35858Imerslund-Gräsbeck syndromeHP:0040281 - Very frequent273
HP:0001889HP:0001889Megaloblastic anemia0CUBN CL E G H80292548OMIM:261100Megaloblastic anemia 1273
HP:0001889HP:0001889Megaloblastic anemia0DHFR CL E G H17192861OMIM:613839Megaloblastic anemia due to dihydrofolate reductase deficiency.7
HP:0001889HP:0001889Megaloblastic anemia0FTCD CL E G H108413974ORPHA:51208Formiminoglutamic aciduriaHP:0040283 - Occasional65
HP:0001889HP:0001889Megaloblastic anemia0FTCD CL E G H108413974OMIM:229100Formiminotransferase deficiency.65
HP:0001889HP:0001889Megaloblastic anemia0HPRT1 CL E G H32515157OMIM:300322Lesch-Nyhan syndrome.76
HP:0001889HP:0001889Megaloblastic anemia0LMBRD1 CL E G H5578823038ORPHA:79284Methylmalonic acidemia with homocystinuria type cblFHP:0040281 - Very frequent46
HP:0001889HP:0001889Megaloblastic anemia0LMBRD1 CL E G H5578823038OMIM:277380Methylmalonic aciduria and homocystinuria, Cblf type.46
HP:0001889HP:0001889Megaloblastic anemia0MMACHC CL E G H2597424525ORPHA:79282Methylmalonic acidemia with homocystinuria, type cblCHP:0040281 - Very frequent101
HP:0001889HP:0001889Megaloblastic anemia0MMACHC CL E G H2597424525OMIM:277400Methylmalonic aciduria and homocystinuria, Cblc type.101
HP:0001889HP:0001889Megaloblastic anemia0MMADHC CL E G H2724925221OMIM:277410Methylmalonic aciduria and homocystinuria, Cbld type.50
HP:0001889HP:0001889Megaloblastic anemia0MTHFD1 CL E G H45227432OMIM:617780Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia.5
HP:0001889HP:0001889Megaloblastic anemia0MTR CL E G H45487468OMIM:250940Homocystinuria-megaloblastic anemia, cblg Complementation type.217
HP:0001889HP:0001889Megaloblastic anemia0MTRR CL E G H45527473OMIM:236270Homocystinuria-megaloblastic anemia, cbl E type.88
HP:0001889HP:0001889Megaloblastic anemia0PHGDH CL E G H262278923ORPHA:793513-phosphoglycerate dehydrogenase deficiency, infantile/juvenile formHP:0040283 - Occasional37
HP:0001889HP:0001889Megaloblastic anemia0PHGDH CL E G H262278923OMIM:601815Phosphoglycerate dehydrogenase deficiency.37
HP:0001889HP:0001889Megaloblastic anemia0PRDX1 CL E G H50529352OMIM:277400Methylmalonic aciduria and homocystinuria, Cblc type.
HP:0001889HP:0001889Megaloblastic anemia0SLC19A1 CL E G H657310937OMIM:601775FOLATE LEVEL IN ERYTHROCYTES1
HP:0001889HP:0001889Megaloblastic anemia0SLC19A2 CL E G H1056010938OMIM:249270Thiamine-Responsive megaloblastic anemia syndrome55
HP:0001889HP:0001889Megaloblastic anemia0SLC19A2 CL E G H1056010938ORPHA:49827Thiamine-responsive megaloblastic anemia syndromeHP:0040281 - Very frequent55
HP:0001889HP:0001889Megaloblastic anemia0SLC46A1 CL E G H11323530521OMIM:229050Folate malabsorption, hereditary101
HP:0001889HP:0001889Megaloblastic anemia0SLC46A1 CL E G H11323530521ORPHA:90045Hereditary folate malabsorptionHP:0040281 - Very frequent101
HP:0001889HP:0001889Megaloblastic anemia0UMPS CL E G H737212563OMIM:258900Orotic aciduria135
HP:0001889HP:0001889Megaloblastic anemia0WFS1 CL E G H746612762OMIM:222300Wolfram syndrome 1.389
HP:0001889HP:0004851Folate-responsive megaloblastic anemia1SLC19A1 CL E G H657310937OMIM:601775FOLATE LEVEL IN ERYTHROCYTES1
HP:0001889HP:0004860Thiamine-responsive megaloblastic anemia1SLC19A2 CL E G H1056010938OMIM:249270Thiamine-Responsive megaloblastic anemia syndrome.55
HP:0001889HP:0004851Folate-responsive megaloblastic anemia1SLC46A1 CL E G H11323530521OMIM:229050Folate malabsorption, hereditary.101
HP:0001889HP:0004826Folate-unresponsive megaloblastic anemia1UMPS CL E G H737212563OMIM:258900Orotic aciduria.135
HP:0001889HP:0003339Pyrimidine-responsive megaloblastic anemia1UMPS CL E G H737212563OMIM:258900Orotic aciduria.135


Genes (19) :AMN CBLIF CUBN DHFR FTCD HPRT1 LMBRD1 MMACHC MMADHC MTHFD1 MTR MTRR PHGDH PRDX1 SLC19A1 SLC19A2 SLC46A1 UMPS WFS1

Diseases (25) :OMIM:618882 ORPHA:35858 OMIM:261000 OMIM:261100 OMIM:613839 ORPHA:51208 OMIM:229100 OMIM:300322 ORPHA:79284 OMIM:277380 ORPHA:79282 OMIM:277400 OMIM:277410 OMIM:617780 OMIM:250940 OMIM:236270 ORPHA:79351 OMIM:601815 OMIM:601775 OMIM:249270 ORPHA:49827 OMIM:229050 ORPHA:90045 OMIM:258900 OMIM:222300
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.