Medical Subject Headings

Last uploaded: March 22, 2026

Id	http://purl.bioontology.org/ontology/MESH/D006907 http://purl.bioontology.org/ontology/MESH/D006907
Preferred Name	17-alpha-Hydroxypregnenolone
Definitions	A 21-carbon steroid that is converted from PREGNENOLONE by STEROID 17-ALPHA-HYDROXYLASE. It is an intermediate in the delta-5 pathway of biosynthesis of GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.
Synonyms	17-Hydroxypregnenolone, (3beta,17alpha)-Isomer 17-Hydroxypregnenolone, (3beta,13alpha,17alpha)-Isomer 17-Hydroxypregnenolone, (3alpha)-Isomer 17-Hydroxypregnenolone 17-Hydroxypregnenolone, (3beta,13alpha)-Isomer 17 alpha-Hydroxypregnenolone 17alpha-Hydroxypregnenolone 17alpha Hydroxypregnenolone 17 Hydroxypregnenolone Hydroxypregnenolone Pregn-5-en-20-one, 3,17-dihydroxy-, (3beta)- 17 alpha Hydroxypregnenolone See more See less
Type	http://www.w3.org/2002/07/owl#Class

definition	A 21-carbon steroid that is converted from PREGNENOLONE by STEROID 17-ALPHA-HYDROXYLASE. It is an intermediate in the delta-5 pathway of biosynthesis of GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.
altLabel	17-Hydroxypregnenolone, (3beta,17alpha)-Isomer 17-Hydroxypregnenolone, (3beta,13alpha,17alpha)-Isomer 17-Hydroxypregnenolone, (3alpha)-Isomer 17-Hydroxypregnenolone 17-Hydroxypregnenolone, (3beta,13alpha)-Isomer 17 alpha-Hydroxypregnenolone 17alpha-Hydroxypregnenolone 17alpha Hydroxypregnenolone 17 Hydroxypregnenolone Hydroxypregnenolone Pregn-5-en-20-one, 3,17-dihydroxy-, (3beta)- 17 alpha Hydroxypregnenolone See more See less
prefLabel	17-alpha-Hydroxypregnenolone
Machine permutation	2004; see HYDROXYPREGNENOLONE 1972-2003; 17-HYDROXYPREGNENOLONE was indexed under HYDROXYPREGNENOLONE (NM) 1981-2003
HN	2004 (1964); for 17-HYDROXYPREGNENOLONE use HYDROXYPREGNENOLONE (NM) 1981-2003
Mapped from	http://purl.bioontology.org/ontology/MESH/C052374 http://purl.bioontology.org/ontology/MESH/C018319 http://purl.bioontology.org/ontology/MESH/C088406 http://purl.bioontology.org/ontology/MESH/C495856 http://purl.bioontology.org/ontology/MESH/C422822 http://purl.bioontology.org/ontology/MESH/C422823 http://purl.bioontology.org/ontology/MESH/C032535 http://purl.bioontology.org/ontology/MESH/C032092 http://purl.bioontology.org/ontology/MESH/C013052 http://purl.bioontology.org/ontology/MESH/C027852 http://purl.bioontology.org/ontology/MESH/C015824 http://purl.bioontology.org/ontology/MESH/C015823 http://purl.bioontology.org/ontology/MESH/C018320 See more See less
type	http://www.w3.org/2002/07/owl#Class
tui	T125 T109 T123
TERMUI	T020789 T527743 T122045 T347862 T527750 T347863 T347864 T347865 T122047 See more See less
TH	NLM (2004) NLM (1964)
MMR	20160527
notation	D006907
Semantic type UMLS property	http://purl.bioontology.org/ontology/STY/T123 http://purl.bioontology.org/ontology/STY/T125 http://purl.bioontology.org/ontology/STY/T109
RR	19454-90-1 ((3beta,17alpha)-isomer) 33999-97-2 ((3beta,13alpha,17alpha)-isomer) 1887-95-2 ((3alpha)-isomer) 33999-90-5 ((3beta,13alpha)-isomer)
Inverse of AQ	http://purl.bioontology.org/ontology/MESH/Q000097 http://purl.bioontology.org/ontology/MESH/Q000627 http://purl.bioontology.org/ontology/MESH/Q000493 http://purl.bioontology.org/ontology/MESH/Q000494 http://purl.bioontology.org/ontology/MESH/Q000276 http://purl.bioontology.org/ontology/MESH/Q000138 http://purl.bioontology.org/ontology/MESH/Q000134 http://purl.bioontology.org/ontology/MESH/Q000266 http://purl.bioontology.org/ontology/MESH/Q000378 http://purl.bioontology.org/ontology/MESH/Q000008 http://purl.bioontology.org/ontology/MESH/Q000009 http://purl.bioontology.org/ontology/MESH/Q000031 http://purl.bioontology.org/ontology/MESH/Q000032 http://purl.bioontology.org/ontology/MESH/Q000037 http://purl.bioontology.org/ontology/MESH/Q000191 http://purl.bioontology.org/ontology/MESH/Q000302 http://purl.bioontology.org/ontology/MESH/Q000145 http://purl.bioontology.org/ontology/MESH/Q000592 http://purl.bioontology.org/ontology/MESH/Q000737 http://purl.bioontology.org/ontology/MESH/Q000819 http://purl.bioontology.org/ontology/MESH/Q000506 http://purl.bioontology.org/ontology/MESH/Q000633 http://purl.bioontology.org/ontology/MESH/Q000600 http://purl.bioontology.org/ontology/MESH/Q000652 http://purl.bioontology.org/ontology/MESH/Q000528 See more See less
DX	19720101
cui	C0954544 C0954545 C0376260
DC	1
MN	D06.472.334.851.687.500.500 D06.472.040.585.745.500 D04.210.500.745.745.725.395
AQL	AA AD AE AG AI AN BL CF CH CL CS EC HI IM IP ME PD PK PO RE SD ST TO TU UR
Inverse of RB	33999-97-2 387-79-1 1887-95-2
MDA	20021206
subClassOf	http://purl.bioontology.org/ontology/MESH/D011284

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