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HP
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  • HP
PROTEIN STRUCTURE
ANTIBODIES
AND
VALIDATION
Protein structures
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

HP
Synonyms
Gene descriptioni

Full gene name according to HGNC.

Haptoglobin
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Read more
Cancer-related genes
Disease related genes
Enzymes
Plasma proteins
Potential drug targets
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Read more
Intracellular,Secreted
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 16
Cytoband q22.2
Chromosome location (bp) 72054505 - 72061055
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

14
Ensembl ENSG00000257017 (version 103.38)
Entrez gene 3240
HGNC HGNC:5141
UniProt P00738 (UniProt - Evidence at protein level)
neXtProt NX_P00738
Antibodypedia HP antibodies


PROTEIN STRUCTUREi

The Structure section provides predicted structures from the Alphafold protein structure database and available experimental structures from Protein Data Bank (PDB).

In the Structure drop-down menu all experimental structures from PDB are available for selection and display. The structures are displayed using the NGL Viewer and can be zoomed-in and rotated either manually or by checking the Autorotate box. The Color scheme can be selected to show the residue index, chain name or confidence score (as B-factors and pLDDT score for experimental and predicted structures, respectively). The positions for available antigen sequences in the structure are shown if Antigens is turned to ON, and the Variants slider can be used to show the positions of clinical and population variants.https://github.com/nglviewer/ngl

Read more

Predicted


Description: Structure prediction from Alphafold project. Structure version 2

# Chains: 1      # Clinical variants: 0      # Population variants: 257

Antigens:

Off
On

Variants:

Off
Clinical
Population

Color scheme:

Confidence
Residue index
Chain name

Autorotate:

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On



PROTEIN BROWSERi

The protein browser displays the antigen location on the target protein(s) and the features of the target protein. The tabs at the top of the protein view section can be used to switch between the different splice variants to which an antigen has been mapped.

At the top of the view, the position of the antigen (identified by the corresponding HPA identifier) is shown as a green bar. A yellow triangle on the bar indicates a <100% sequence identity to the protein target.

Below the antigens, the maximum percent sequence identity of the protein to all other proteins from other human genes is displayed, using a sliding window of 10 aa residues (HsID 10) or 50 aa residues (HsID 50). The region with the lowest possible identity is always selected for antigen design, with a maximum identity of 60% allowed for designing a single-target antigen (read more).

The curve in blue displays the predicted antigenicity i.e. the tendency for different regions of the protein to generate an immune response, with peak regions being predicted to be more antigenic.The curve shows average values based on a sliding window approach using an in-house propensity scale. (read more).

If a signal peptide is predicted by a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius (turquoise) and/or transmembrane regions (orange) are predicted by MDM, these are displayed.

Low complexity regions are shown in yellow and InterPro regions in green. Common (purple) and unique (grey) regions between different splice variants of the gene are also displayed (read more), and at the bottom of the protein view is the protein scale.
«
HP-201
HP-202
HP-203
HP-204
HP-207
HP-208
HP-209
HP-212
HP-213
HP-214
HP-215
HP-216
HP-217
HP-218
»


PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The ENSP identifier links to the Ensembl website protein summary, while the ENST identifier links to the Ensembl website transcript summary for the selected splice variant. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column. The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius) and the number of predicted transmembrane region(s) (according to MDM) are also reported.
Splice variant UniProt Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
HP-201
ENSP00000228226
ENST00000228226
A0A087WU08 [Direct mapping]
Haptoglobin
Show all
   SPOCTOPUS predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0030492 [hemoglobin binding]
Show all
281 aa
31.4 kDa
No 0
HP-202
ENSP00000348170
ENST00000355906
P00738 [Direct mapping]
Haptoglobin Haptoglobin alpha chain Haptoglobin beta chain
Show all
Enzymes
   Peptidases
   Serine-type peptidases
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Plasma proteins
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0002376 [immune system process]
GO:0002526 [acute inflammatory response]
GO:0004252 [serine-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006508 [proteolysis]
GO:0006898 [receptor-mediated endocytosis]
GO:0006952 [defense response]
GO:0006953 [acute-phase response]
GO:0010942 [positive regulation of cell death]
GO:0016209 [antioxidant activity]
GO:0030492 [hemoglobin binding]
GO:0031638 [zymogen activation]
GO:0031838 [haptoglobin-hemoglobin complex]
GO:0035580 [specific granule lumen]
GO:0042542 [response to hydrogen peroxide]
GO:0042742 [defense response to bacterium]
GO:0043312 [neutrophil degranulation]
GO:0051354 [negative regulation of oxidoreductase activity]
GO:0070062 [extracellular exosome]
GO:0071682 [endocytic vesicle lumen]
GO:0072562 [blood microparticle]
GO:0098869 [cellular oxidant detoxification]
GO:1904724 [tertiary granule lumen]
GO:2000296 [negative regulation of hydrogen peroxide catabolic process]
Show all
406 aa
45.2 kDa
Yes 0
HP-203
ENSP00000350406
ENST00000357763
H0Y300 [Direct mapping]
Haptoglobin
Show all
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0030492 [hemoglobin binding]
Show all
442 aa
49.1 kDa
Yes 0
HP-204
ENSP00000381199
ENST00000398131
P00738 [Direct mapping]
Haptoglobin Haptoglobin alpha chain Haptoglobin beta chain
Show all
Enzymes
   Peptidases
   Serine-type peptidases
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Plasma proteins
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0002376 [immune system process]
GO:0002526 [acute inflammatory response]
GO:0004252 [serine-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006508 [proteolysis]
GO:0006898 [receptor-mediated endocytosis]
GO:0006952 [defense response]
GO:0006953 [acute-phase response]
GO:0010942 [positive regulation of cell death]
GO:0016209 [antioxidant activity]
GO:0030492 [hemoglobin binding]
GO:0031638 [zymogen activation]
GO:0031838 [haptoglobin-hemoglobin complex]
GO:0035580 [specific granule lumen]
GO:0042542 [response to hydrogen peroxide]
GO:0042742 [defense response to bacterium]
GO:0043312 [neutrophil degranulation]
GO:0051354 [negative regulation of oxidoreductase activity]
GO:0070062 [extracellular exosome]
GO:0071682 [endocytic vesicle lumen]
GO:0072562 [blood microparticle]
GO:0098869 [cellular oxidant detoxification]
GO:1904724 [tertiary granule lumen]
GO:2000296 [negative regulation of hydrogen peroxide catabolic process]
Show all
347 aa
38.5 kDa
Yes 0
HP-207
ENSP00000454413
ENST00000562526
H3BMJ7 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005576 [extracellular region]
GO:0030492 [hemoglobin binding]
Show all
92 aa
10.2 kDa
Yes 0
HP-208
ENSP00000456503
ENST00000564499
H3BS21 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0030492 [hemoglobin binding]
Show all
222 aa
24.8 kDa
Yes 0
HP-209
ENSP00000454966
ENST00000565574
A0A0C4DGL8 [Direct mapping]
Haptoglobin
Show all
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0006953 [acute-phase response]
GO:0016209 [antioxidant activity]
GO:0030492 [hemoglobin binding]
GO:0042742 [defense response to bacterium]
GO:0098869 [cellular oxidant detoxification]
Show all
347 aa
38.5 kDa
Yes 0
HP-212
ENSP00000464070
ENST00000567185
J3QR68 [Direct mapping]
Haptoglobin
Show all
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0030492 [hemoglobin binding]
Show all
404 aa
44.9 kDa
Yes 0
HP-213
ENSP00000463491
ENST00000567612
J3QLC9 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0006953 [acute-phase response]
GO:0016209 [antioxidant activity]
GO:0030492 [hemoglobin binding]
GO:0042742 [defense response to bacterium]
GO:0098869 [cellular oxidant detoxification]
Show all
365 aa
40.7 kDa
Yes 0
HP-214
ENSP00000462662
ENST00000568417
J3KSV1 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005576 [extracellular region]
GO:0030492 [hemoglobin binding]
Show all
88 aa
9.7 kDa
Yes 0
HP-215
ENSP00000463755
ENST00000569639
J3QQI8 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005576 [extracellular region]
GO:0030492 [hemoglobin binding]
Show all
91 aa
9.9 kDa
Yes 0
HP-216
ENSP00000457629
ENST00000570083
P00738 [Direct mapping]
Haptoglobin Haptoglobin alpha chain Haptoglobin beta chain
Show all
Enzymes
   Peptidases
   Serine-type peptidases
   SPOCTOPUS predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Plasma proteins
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0002376 [immune system process]
GO:0002526 [acute inflammatory response]
GO:0004252 [serine-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006508 [proteolysis]
GO:0006898 [receptor-mediated endocytosis]
GO:0006952 [defense response]
GO:0006953 [acute-phase response]
GO:0010942 [positive regulation of cell death]
GO:0016209 [antioxidant activity]
GO:0030492 [hemoglobin binding]
GO:0031638 [zymogen activation]
GO:0031838 [haptoglobin-hemoglobin complex]
GO:0035580 [specific granule lumen]
GO:0042542 [response to hydrogen peroxide]
GO:0042742 [defense response to bacterium]
GO:0043312 [neutrophil degranulation]
GO:0051354 [negative regulation of oxidoreductase activity]
GO:0070062 [extracellular exosome]
GO:0071682 [endocytic vesicle lumen]
GO:0072562 [blood microparticle]
GO:0098869 [cellular oxidant detoxification]
GO:1904724 [tertiary granule lumen]
GO:2000296 [negative regulation of hydrogen peroxide catabolic process]
Show all
347 aa
38.5 kDa
Yes 0
HP-217
ENSP00000461999
ENST00000576168
J3KRH2 [Direct mapping]
Haptoglobin
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005576 [extracellular region]
GO:0030492 [hemoglobin binding]
Show all
149 aa
16.5 kDa
Yes 0
HP-218
ENSP00000478279
ENST00000613898
A0A087WU08 [Direct mapping]
Haptoglobin
Show all
   SPOCTOPUS predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0030492 [hemoglobin binding]
Show all
281 aa
31.4 kDa
No 0

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