BP

GO:0043401

steroid hormone mediated signaling pathway

A series of molecular signals mediated by a steroid hormone binding to a receptor.

IEA

CC

GO:0005635

nuclear envelope

The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).

IDA

CC

GO:0012505

endomembrane system

A collection of membranous structures involved in transport within the cell. The main components of the endomembrane system are endoplasmic reticulum, Golgi bodies, vesicles, cell membrane and nuclear envelope. Members of the endomembrane system pass materials through each other or though the use of vesicles.

IBA

CC

GO:0016020

membrane

A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

IDA

CC

GO:0016021

integral component of membrane

The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

IEA

MF

GO:0003707

steroid hormone receptor activity

Combining with a steroid hormone and transmitting the signal within the cell to initiate a change in cell activity or function.

TAS

MF

GO:0005496

steroid binding

Interacting selectively and non-covalently with a steroid, any of a large group of substances that have in common a ring system based on 1,2-cyclopentanoperhydrophenanthrene.

IEA

MF

GO:0020037

heme binding

Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.

IBA