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Connecting genetic risk to disease endpoints through the human blood plasma proteome

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Locus annotations

Locus 67

Top associations per target

Target cis/​trans Study SNP SNP location Maj/​min allele MAF N βinv seinv Pinv fclog Plog Praw
Haptoglobin, Mixed Type cis Discovery rs9302635 16:72,144,174 T/C 0.18 997 0.876 0.053 6.3×10-54 1.530 1.7×10-43 5.3×10-56
Haptoglobin, Mixed Type cis Replication rs9302635 16:72,144,174 A/G 0.17 337 0.859 0.091 6.2×10-19 1.900 6.5×10-12 7.7×10-22
Ferritin trans Discovery rs9302635 16:72,144,174 T/C 0.18 997 0.372 0.058 2.8×10-10 1.150 2.4×10-6 0.043
Ferritin trans Replication rs9302635 16:72,144,174 A/G 0.17 337 0.571 0.098 1.4×10-8 1.240 2.5×10-5 0.873

 

Regional association plots

 

Boxplots and histograms for top associations

Haptoglobin (Haptoglobin, Mixed Type)

inverse-normalized probe levels log2 transformed probe levels raw probe levels
Discovery study
Replication study

Ferritin

inverse-normalized probe levels log2 transformed probe levels raw probe levels
Discovery study
Replication study

Haptoglobin (Haptoglobin, Mixed Type)

Target (abbrv.) Haptoglobin, Mixed Type
Target (full name) Haptoglobin
Somalogic ID (Sequence ID) SL000437 (3054-3_2)
Entrez Gene Symbol HP
UniProt ID P00738
UniProt Comment
  • As a result of hemolysis, hemoglobin is found to accumulate in the kidney and is secreted in the urine. Haptoglobin captures, and combines with free plasma hemoglobin to allow hepatic recycling of heme iron and to prevent kidney damage. Haptoglobin also acts as an Antimicrobial; Antioxidant, has antibacterial activity and plays a role in modulating many aspects of the acute phase response. Hemoglobin/haptoglobin complexes are rapidely cleared by the macrophage CD163 scavenger receptor expressed on the surface of liver Kupfer cells through an endocytic lysosomal degradation pathway.
Biomarker applications (based on IPA annotation)
  • diagnosis
  • efficacy
  • unspecified application
Reactome
  • Scavenging of heme from plasma

Ferritin

Target (abbrv.) Ferritin
Target (full name) Ferritin
Somalogic ID (Sequence ID) SL000420 (3031-66_1)
Entrez Gene Symbol FTH1, FTL
UniProt ID P02794, P02792
UniProt Comment
  • P02794: Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Has ferroxidase activity. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation. Also plays a role in delivery of iron to cells. Mediates iron uptake in capsule cells of the developing kidney (By similarity).
  • P02792: Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation. Also plays a role in delivery of iron to cells. Mediates iron uptake in capsule cells of the developing kidney (By similarity).

All locus annotations are based on the sentinel SNP (rs9302635) and 6 proxy variant(s) that is/are in linkage disequilibrium r2 ≥ 0.8. Linkage disequilibrium is based on data from the 1000 Genomes Project, phase 3 version 5, European population and was retrieved using SNiPA's Block Annotation feature.
Download the detailed results of SNiPA's block annotation (PDF)

Linked genes

Genes hit or close-by
  • TXNL4B thioredoxin-like 4B
  • DHX38 DEAH (Asp-Glu-Ala-His) box polypeptide 38
  • PMFBP1 polyamine modulated factor 1 binding protein 1