Protein Description

Gene Symbol APOB
Entrez ID 338
Uniprot ID P04114
Description apolipoprotein B
Chromosomal Location chr2: 21,001,429-21,044,073
Ontology GO ID GO Term Definition Evidence

BP

GO:0001523

retinoid metabolic process

The chemical reactions and pathways involving retinoids, any member of a class of isoprenoids that contain or are derived from four prenyl groups linked head-to-tail. Retinoids include retinol and retinal and structurally similar natural derivatives or synthetic compounds, but need not have vitamin A activity.

TAS

BP

GO:0001701

in utero embryonic development

The process whose specific outcome is the progression of the embryo in the uterus over time, from formation of the zygote in the oviduct, to birth. An example of this process is found in Mus musculus.

IEA

BP

GO:0006642

triglyceride mobilization

The release of triglycerides, any triester of glycerol, from storage within cells or tissues, making them available for metabolism.

IEA

BP

GO:0006898

receptor-mediated endocytosis

An endocytosis process in which cell surface receptors ensure specificity of transport. A specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, forming a transport vesicle containing the receptor-ligand complex and excluding most other plasma-membrane proteins. Receptor-mediated endocytosis generally occurs via clathrin-coated pits and vesicles.

TAS

BP

GO:0007283

spermatogenesis

The process of formation of spermatozoa, including spermatocytogenesis and spermiogenesis.

IEA

BP

GO:0007399

nervous system development

The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.

IEA

BP

GO:0008203

cholesterol metabolic process

The chemical reactions and pathways involving cholesterol, cholest-5-en-3 beta-ol, the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones. It is a component of the plasma membrane lipid bilayer and of plasma lipoproteins and can be found in all animal tissues.

IMP

BP

GO:0009566

fertilization

The union of gametes of opposite sexes during the process of sexual reproduction to form a zygote. It involves the fusion of the gametic nuclei (karyogamy) and cytoplasm (plasmogamy).

IEA

BP

GO:0009615

response to virus

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus from a virus.

IEP

BP

GO:0009743

response to carbohydrate

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a carbohydrate stimulus.

IEA

BP

GO:0009791

post-embryonic development

The process whose specific outcome is the progression of the organism over time, from the completion of embryonic development to the mature structure. See embryonic development.

IEA

BP

GO:0010269

response to selenium ion

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus from selenium ion.

IEA

BP

GO:0010628

positive regulation of gene expression

Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA (for protein-coding genes) and the translation of that mRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

IEA

BP

GO:0010744

positive regulation of macrophage derived foam cell differentiation

Any process that increases the rate, frequency or extent of macrophage derived foam cell differentiation. Macrophage derived foam cell differentiation is the process in which a macrophage acquires the specialized features of a foam cell. A foam cell is a type of cell containing lipids in small vacuoles and typically seen in atherosclerotic lesions, as well as other conditions.

IDA

BP

GO:0010884

positive regulation of lipid storage

Any process that increases the rate, frequency or extent of lipid storage. Lipid storage is the accumulation and maintenance in cells or tissues of lipids, compounds soluble in organic solvents but insoluble or sparingly soluble in aqueous solvents. Lipid reserves can be accumulated during early developmental stages for mobilization and utilization at later stages of development.

IDA

BP

GO:0010886

positive regulation of cholesterol storage

Any process that increases the rate or extent of cholesterol storage. Cholesterol storage is the accumulation and maintenance in cells or tissues of cholesterol, cholest-5-en-3 beta-ol, the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones.

IDA

BP

GO:0019433

triglyceride catabolic process

The chemical reactions and pathways resulting in the breakdown of a triglyceride, any triester of glycerol.

IEA

BP

GO:0030301

cholesterol transport

The directed movement of cholesterol, cholest-5-en-3-beta-ol, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.

IMP

BP

GO:0030317

flagellated sperm motility

Any process involved in the controlled movement of a flagellated sperm cell.

IEA

BP

GO:0032496

response to lipopolysaccharide

Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.

IEA

BP

GO:0033344

cholesterol efflux

The directed movement of cholesterol, cholest-5-en-3-beta-ol, out of a cell or organelle.

IEA

BP

GO:0034374

low-density lipoprotein particle remodeling

The acquisition, loss or modification of a protein or lipid within a low-density lipoprotein particle, including the hydrolysis of triglyceride by hepatic lipase, with the subsequent loss of free fatty acid, and the transfer of cholesterol esters from LDL to a triglyceride-rich lipoprotein particle by cholesteryl ester transfer protein (CETP), with the simultaneous transfer of triglyceride to LDL.

IMP

BP

GO:0034379

very-low-density lipoprotein particle assembly

The aggregation and arrangement of proteins and lipids in the liver to form a very-low-density lipoprotein particle.

IC

BP

GO:0034383

low-density lipoprotein particle clearance

The process in which a low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.

IMP

BP

GO:0042157

lipoprotein metabolic process

The chemical reactions and pathways involving any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids.

TAS

BP

GO:0042158

lipoprotein biosynthetic process

The chemical reactions and pathways resulting in the formation of any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids.

TAS

BP

GO:0042159

lipoprotein catabolic process

The chemical reactions and pathways resulting in the breakdown of any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids.

TAS

BP

GO:0042632

cholesterol homeostasis

Any process involved in the maintenance of an internal steady state of cholesterol within an organism or cell.

IMP

BP

GO:0042953

lipoprotein transport

The directed movement of any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.

IEA

BP

GO:0044257

cellular protein catabolic process

The chemical reactions and pathways resulting in the breakdown of a protein by individual cells.

TAS

BP

GO:0045540

regulation of cholesterol biosynthetic process

Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of cholesterol.

IEA

BP

GO:0048844

artery morphogenesis

The process in which the anatomical structures of arterial blood vessels are generated and organized. Arteries are blood vessels that transport blood from the heart to the body and its organs.

IEA

BP

GO:0050900

leukocyte migration

The movement of a leukocyte within or between different tissues and organs of the body.

TAS

BP

GO:0071356

cellular response to tumor necrosis factor

Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a tumor necrosis factor stimulus.

IEA

BP

GO:0071379

cellular response to prostaglandin stimulus

Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a prostagladin stimulus.

IEA

CC

GO:0005576

extracellular region

The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

TAS

CC

GO:0005615

extracellular space

That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

ISS

CC

GO:0005737

cytoplasm

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

IDA

CC

GO:0005769

early endosome

A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.

TAS

CC

GO:0005788

endoplasmic reticulum lumen

The volume enclosed by the membranes of the endoplasmic reticulum.

TAS

CC

GO:0005789

endoplasmic reticulum membrane

The lipid bilayer surrounding the endoplasmic reticulum.

TAS

CC

GO:0005794

Golgi apparatus

A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.

IDA

CC

GO:0005829

cytosol

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

TAS

CC

GO:0005886

plasma membrane

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

IDA|TAS

CC

GO:0010008

endosome membrane

The lipid bilayer surrounding an endosome.

TAS

CC

GO:0015629

actin cytoskeleton

The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes.

IDA

CC

GO:0030669

clathrin-coated endocytic vesicle membrane

The lipid bilayer surrounding a clathrin-coated endocytic vesicle.

TAS

CC

GO:0031904

endosome lumen

The volume enclosed by the membrane of an endosome.

TAS

CC

GO:0034359

mature chylomicron

A chylomicron that contains apolipoprotein C2 (APOC2), a cofactor for lipoprotein lipase (LPL) activity, and has a mean diameter of 500 nm and density of 0.95g/ml. Mature chylomicron particles transport exogenous (dietary) lipids from the intestines to other body tissues, via the blood and lymph.

IDA

CC

GO:0034360

chylomicron remnant

A lipoprotein particle that is derived from a mature chylomicron particle by the removal of triglycerides from the chylomicron core by lipoprotein lipase and the subsequent loss of surface components. It characteristically contains apolipoprotein E (APOE) and is cleared from the blood by the liver.

TAS

CC

GO:0034361

very-low-density lipoprotein particle

A triglyceride-rich lipoprotein particle that is typically composed of APOB100, APOE and APOCs and has a density of about 1.006 g/ml and a diameter of between 20-80 nm. It is found in blood and transports endogenous products (newly synthesized cholesterol and triglycerides) from the liver.

IDA

CC

GO:0034362

low-density lipoprotein particle

A lipoprotein particle, rich in cholesterol esters and low in triglycerides that is typically composed of APOB100 and APOE and has a density of 1.02-1.06 g/ml and a diameter of between 20-25 nm. LDL particles are formed from VLDL particles (via IDL) by the loss of triglyceride and gain of cholesterol ester. They transport endogenous cholesterol (and to some extent triglycerides) from peripheral tissues back to the liver.

IDA

CC

GO:0034363

intermediate-density lipoprotein particle

A triglyceride-rich lipoprotein particle that typically contains APOB100, APOE and APOCs and has a density of 1.006-1.019 g/ml and a diameter of between 25-30 nm. IDL particles are found in blood and are formed by the delipidation of very-low-density lipoprotein particles (VLDL). IDL particles are removed from blood by the liver, following binding to the APOE receptor, or are converted to low-density lipoprotein (LDL).

IDA

CC

GO:0042627

chylomicron

A large lipoprotein particle (diameter 75-1200 nm) composed of a central core of triglycerides and cholesterol surrounded by a protein-phospholipid coating. The proteins include one molecule of apolipoprotein B-48 and may include a variety of apolipoproteins, including APOAs, APOCs and APOE. Chylomicrons are found in blood or lymph and carry lipids from the intestines into other body tissues.

IDA

CC

GO:0043025

neuronal cell body

The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.

IDA

CC

GO:0043231

intracellular membrane-bounded organelle

Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.

TAS

CC

GO:0070062

extracellular exosome

A membrane-bounded vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.

IDA

CC

GO:0070971

endoplasmic reticulum exit site

An endoplasmic reticulum part at which COPII-coated vesicles are produced.

IDA

CC

GO:0071682

endocytic vesicle lumen

The volume enclosed by the membrane of an endocytic vesicle.

TAS

MF

GO:0005515

protein binding

Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).

IPI

MF

GO:0005543

phospholipid binding

Interacting selectively and non-covalently with phospholipids, a class of lipids containing phosphoric acid as a mono- or diester.

IDA

MF

GO:0008201

heparin binding

Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.

IDA

MF

GO:0017127

cholesterol transporter activity

Enables the directed movement of cholesterol into, out of or within a cell, or between cells. Cholesterol is the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones.

IMP

MF

GO:0035473

lipase binding

Interacting selectively and non-covalently with any lipase.

IPI

MF

GO:0050750

low-density lipoprotein particle receptor binding

Interacting selectively and non-covalently with a low-density lipoprotein receptor.

IMP

Domain ID Description

IPR001747

Lipid transport protein, N-terminal

IPR009454

Lipid transport, open beta-sheet

IPR011030

Vitellinogen, superhelical

IPR015255

Vitellinogen, open beta-sheet

IPR015816

Vitellinogen, beta-sheet N-terminal

IPR015817

Vitellinogen, open beta-sheet, subdomain 1

IPR015819

Lipid transport protein, beta-sheet shell

IPR016024

Armadillo-type fold

IPR022176

Apolipoprotein B100 C-terminal

Pathway ID Pathway Term Pathway Source

hsa04975

Fat digestion and absorption

KEGG

hsa04977

Vitamin digestion and absorption

KEGG

WP1533

Vitamin B12 Metabolism

WikiPathways

WP15

Selenium Micronutrient Network

WikiPathways

WP430

Statin Pathway

WikiPathways

WP176

Folate Metabolism

WikiPathways

WP3601

Composition of Lipid Particles

WikiPathways

UMLS CUI UMLS Term

C0004943

Behcet Syndrome

C0007222

Cardiovascular Diseases

C0010068

Coronary Heart Disease

C0015695

Fatty Liver

C0020443

Hypercholesterolemia

C0020445

Hypercholesterolemia, Familial

C0020473

Hyperlipidemia

C0020557

Hypertriglyceridemia

C0020597

Hypobetalipoproteinemias

C0031117

Peripheral Neuropathy

C0242339

Dyslipidemias

C0524620

Metabolic Syndrome X

C1704299

Hypobetalipoproteinemia, Familial, Apolipoprotein B

C1704417

Hyperlipoproteinemia Type Iib

No tissues found.

Database Name

DisGeNET

DGA

Pubmed ID Author Year Title

25393639

Ambekar et al.

2014

Proteomics of follicular fluid from women with polycystic ovary syndrome suggests molecular defects in follicular development

Gene Symbol Entrez ID Uniprot ID Score

APOA2

336

P02652

0.49

APOE

348

P02649

0.49

PSMD14

10213

O00487

0.49

LRP6

4040

O75581

0.56

APOB

338

P04114

0.63

PRDX4

10549

Q13162

0.63

VIMP

55829

Q9BQE4

0.63

SYVN1

84447

Q86TM6

0.63

VCP

7415

P55072

0.73

FAF2

23197

Q96CS3

0.73

DERL1

79139

Q9BUN8

0.73

CALCR

799

P30988

0.85

APOC2

344

P02655

0.49

HSPA8

3312

P11142

0.52

SEC61A2

55176

Q9H9S3

0.52

HSP90AA1

3320

P07900

0.55

HSPA1A

3303

P0DMV8

0.62

HSPA1B

3304

P0DMV9

0.62

PLIN2

123

Q99541

0.63

AKT2

208

P31751

0.63

AUP1

550

Q9Y679

0.63

EGFR

1956

P00533

0.63

SMAD3

4088

P84022

0.63

MLF1

4291

P58340

0.63

YBX1

4904

P67809

0.63

SLC18A1

6570

P54219

0.63

SUMO2

6613

P61956

0.63

B3GALT2

8707

O43825

0.63

P2RY14

9934

Q15391

0.63

UCHL5

51377

Q9Y5K5

0.63

ARFGAP1

55738

Q8N6T3

0.63

P2RY12

64805

Q9H244

0.63

YIPF2

78992

Q9BWQ6

0.63

SLC38A6

145389

Q8IZM9

0.63

RASGEF1B

153020

Q0VAM2

0.63

TMEM41B

440026

Q5BJD5

0.63

LRP2

4036

P98164

0.65

CRKL

1399

P46109

0.72

MYH9

4627

P35579

0.72

PAX6

5080

P26367

0.72

SEC61A1

29927

P61619

0.72

ANLN

54443

Q9NQW6

0.72

ARX

170302

Q96QS3

0.72

MZT1

440145

Q08AG7

0.72

SEC61B

10952

P60468

0.73

APOA1

335

P02647

0.75

BGN

633

P21810

0.75

LIPC

3990

P11150

0.75

HSPA5

3309

P11021

0.77

RAD21

5885

O60216

0.82

CANX

821

P27824

0.84

MTTP

4547

P55157

0.84

PPIB

5479

P23284

0.84

CALR

811

P27797

0.85

HSP90B1

7184

P14625

0.86

PDIA4

9601

P13667

0.86

LDLR

3949

P01130

0.88