Table 2 Descriptions and names of proteins that were lower (n = 18) and higher (n = 21) in the lifestyle versus control group (all 39 proteins, FDR correction, q < 0.05).

From: Healthy lifestyle linked to innate immunity and lipoprotein metabolism: a cross-sectional comparison using untargeted proteomics

Group fold difference (log2)

Protein ID#

Gene

Protein names and short descriptions of functions

Proteins that were lower in the lifestyle versus control group

 − 0.5919

*P02743

APCS

Serum amyloid P-component; An acute phase protein involved in inflammation via complement-dependent pathways

 − 0.441927

P00738

HP

Haptoglobin; Captures hemoglobin; acts as an antimicrobial and antioxidant and modulates the acute phase response

 − 0.397979

*P00751

CFB

Complement factor B; Part of the alternate pathway of the complement system

 − 0.362202

*P00740

F9

Coagulation factor IX; Participates in the intrinsic pathway of blood coagulation

 − 0.327764

P0C0L5

C4B

Complement C4-B; Non-enzymatic component of C3 and C5 convertases; propagates the complement pathway

 − 0.303047

P02763

ORM1

Alpha-1-acid glycoprotein 1; Transport protein; modulates immune activity during the acute-phase reaction

 − 0.300494

*P01024

C3

Complement C3; Plays a central role in the activation of the complement system

 − 0.286746

P05156

CFI

Complement factor I; Cleaves alpha-chains of C4b, C3b with cofactors C4-binding protein and factor H

 − 0.286538

*P68104

EEF1A1

Elongation factor 1-alpha 1; Role in the positive regulation of interferon gamma transcription in T-helper 1 cells

 − 0.282922

*P19652

ORM2

Alpha-1-acid glycoprotein 2; Transport protein; modulates immune activity during the acute-phase reaction

 − 0.275192

P08603

CFH

Complement factor H; Functions as a cofactor in the inactivation of C3b

 − 0.27405

P08311

CTSG

Cathepsin G; Cleaves complement C3 and has antibacterial activity

 − 0.264261

*P43652

AFM

Afamin; Vitamin E binding protein

 − 0.258812

P04004

VTN

Vitronectin; Cell adhesion factor for inhibition of the terminal cytolytic complement pathway

 − 0.244408

P02751

FN1

Fibronectin 1; Involved in cell adhesion, cell motility, opsonization, wound healing, and maintenance of cell shape

 − 0.229351

P05546

SERPIND1

Heparin cofactor 2; Thrombin inhibitor activated by the glycosaminoglycans, heparin or dermatan sulfate

 − 0.202753

P36955

SERPINF1

Pigment epithelium-derived factor; Neurotrophic protein; induces neuronal differentiation; inhibits angiogenesis

 − 0.132368

P01031

C5

Complement C5; Activation initiates the spontaneous assembly of the membrane attack complex

Proteins that were higher in the lifestyle versus control group

 0.105871

*Q15435

PPP1R7

Protein phosphatase 1 regulatory subunit 7; Regulatory subunit of protein phosphatase 1, and is required for completion of the mitotic cycle

 0.129966

Q86X55

CARM1

Histone-arginine methyltransferase CARM1; Methylates guanidino nitrogens of arginyl residues and acts on histones and the regulation of gene expression

 0.155758

P02647

APOA1

Apolipoprotein A-I; The major protein component of high density lipoprotein (HDL) in plasma. Participates in the reverse transport of cholesterol from tissues to the liver

 0.160256

P06396

GSN

Gelsolin; Actin-modulating protein that is involved in filament assembly; influences cell processes including cells of the immune system

 0.166127

P14550

AKR1A1

Alcohol dehydrogenase [NADP( +)]; Catalyzes the NADPH-dependent reduction of aldehydes to alcohols

 0.175456

P01008

SERPINC1

Antithrombin-III; Most important serine protease inhibitor in plasma that regulates the blood coagulation cascade

 0.188729

P08397

HMBS

Porphobilinogen deaminase; Produces an enzyme involved in heme production

 0.194536

O94903

PLPBP

Pyridoxal phosphate homeostasis protein; Intracellular regulation of pyridoxal 5′-phosphate (PLP), vitamin B6

 0.202922

*P02766

TTR

Thyroid hormone-binding protein; Transports thyroxine from the bloodstream to the brain

 0.217191

*P37840

SNCA

Alpha-synuclein; Involved in the regulation of dopamine release and transport

 0.228831

*P05089

ARG1

Arginase-1; Key element of the urea cycle converting L-arginine to urea and L-ornithine

 0.244906

*P01023

A2M

Alpha-2-macroglobulin; Inhibits all four classes of proteinases by a unique 'trapping' mechanism. Inhibits inflammatory cytokines and inflammatory cascades

 0.26744

*P02768

ALB

Serum albumin; Main function is the regulation of the colloidal osmotic pressure of blood; acts as a carrier protein for many molecules

 0.267692

O95445

APOM

Apolipoprotein M; Involved with lipid transport

 0.269348

P02654

APOC1

Apolipoprotein C-I; Plays a central role in HDL and very low density lipoprotein (VLDL) metabolism

 0.273906

*P54252

ATXN3

Ataxin-3; Protein homeostasis maintenance, transcription, cytoskeleton regulation, myogenesis, and degradation

 0.279698

P05090

APOD

Apolipoprotein D; Encodes a component of HDL; involved in lipoprotein metabolism and the transport and binding of bilin (e.g., bilirubin)

 0.301995

*P35858

IGFALS

Insulin-like growth factor-binding protein complex acid labile subunit; Binds insulin-like growth factors, increasing their half-life; influences protein complexes, cell adhesion

 0.405038

P01871

IGHM

Immunoglobulin heavy constant mu; Constant region of immunoglobulin heavy chains

 0.411452

P04278

SHBG

Sex hormone-binding globulin; Androgen transport protein; regulates clearance rate of steroid hormones

 0.415369

Q15848

ADIPOQ

Adiponectin; Adipokine that controls fat metabolism and insulin sensitivity, and anti-inflammatory activities

  1. Group fold differences (lifestyle/control) are log2 transformed with minus values representing proteins downregulated in the lifestyle versus control group. “*” indicates the 15 proteins that were in common with the list of 20 proteins from multivariate modeling that predicted group membership. The 5 of 20 proteins included in the multivariate model that are not listed here were: P62877, Q9UNM6, Q13619, A4D1P6, Q9UBV8.