CD177
CD177 antigen
Also known as: CD177_HUMAN
Protein identityUniProt · HPA
- UniProt accession
- Q8N6Q3
- Gene
- CD177
- Canonical length
- 437 aa
- Protein class
- Predicted intracellular proteins
OverviewNCBI Gene
No narrative summary is available for CD177 in this catalog release; identity and structured annotations are shown without generated factual claims.
Canonical amino-acid sequenceUniProt
437 residues, UniProt reviewed canonical sequence.
>Q8N6Q3|CD177
1 MSAVLLLALL GFILPLPGVQ ALLCQFGTVQ HVWKVSDLPR QWTPKNTSCD SGLGCQDTLM
61 LIESGPQVSL VLSKGCTEAK DQEPRVTEHR MGPGLSLISY TFVCRQEDFC NNLVNSLPLW
121 APQPPADPGS LRCPVCLSME GCLEGTTEEI CPKGTTHCYD GLLRLRGGGI FSNLRVQGCM
181 PQPGCNLLNG TQEIGPVGMT ENCNRKDFLT CHRGTTIMTH GNLAQEPTDW TTSNTEMCEV
241 GQVCQETLLL LDVGLTSTLV GTKGCSTVGA QNSQKTTIHS APPGVLVASY THFCSSDLCN
301 SASSSSVLLN SLPPQAAPVP GDRQCPTCVQ PLGTCSSGSP RMTCPRGATH CYDGYIHLSG
361 GGLSTKMSIQ GCVAQPSSFL LNHTRQIGIF SAREKRDVQP PASQHEGGGA EGLESLTWGV
421 GLALAPALWW GVVCPSCLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CD177 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.33
- Highest tissue expression
- 270 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 270 nTPM
- rectum: 155 nTPM
- colon: 146 nTPM
- spleen: 65 nTPM
- prostate: 61 nTPM
- lung: 20 nTPM
Single-cell type
- neutrophils: 752 nCPM
- neutrophil progenitors: 425 nCPM
- colonocytes: 379 nCPM
- goblet cells: 103 nCPM
- prostatic glandular cells: 42 nCPM
- endometrial secretory cells: 24 nCPM
Immune cell
- neutrophil: 8.8 nTPM
- non-classical monocyte: 1.2 nTPM
- basophil: 0.8 nTPM
- T-reg: 0.7 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
Brain region
- cerebral cortex: 18 nTPM
- cerebellum: 8.4 nTPM
- choroid plexus: 7.3 nTPM
- pons: 5.7 nTPM
- midbrain: 2.5 nTPM
- thalamus: 1.7 nTPM
ReferencesPubMed · IEDB
Publications for CD177 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
6 publications
- Interspecies brain antigen detected by naturally occurring mouse anti-brain autoantibody.
1975 · Proc Natl Acad Sci U S A · RCR 1.6 · 54 citations - Competitively disrupting the neutrophil-specific receptor-autoantigen CD177:proteinase 3 membrane complex reduces anti-PR3 antibody-induced neutrophil activation.
2022 · J Biol Chem · RCR 0.9 · 11 citations - Granulocyte antibody screening: evaluation of a bead-based assay in comparison with classical methods.
2010 · Transfusion · RCR 0.7 · 19 citations - Characterization of CD177-reactive iso- and auto-antibodies.
2021 · Transfusion · RCR 0.7 · 9 citations - Neutrophil alloantibodies react with cytoplasmic antigens: a possible cause of false-positive indirect immunofluorescence assays for antibodies to neutrophil cytoplasmic antigens.
1993 · Am J Kidney Dis · RCR 0.5 · 13 citations
Show 1 more
- A novel enzyme-linked immunosorbent assay method for the detection of human neutrophil antigen-2a antibodies.
2009 · Transfusion · RCR 0.4 · 12 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- DepMap mean gene effect
- -0.22
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell adhesion
- cell-cell adhesion via plasma-membrane adhesion molecules
- cell-cell junction maintenance
- innate immune response
- leukocyte cell-cell adhesion
- neutrophil extravasation
- neutrophil migration
- positive regulation of neutrophil degranulation
- positive regulation of superoxide anion generation
- protein localization to cell surface
- regulation of endocytosis
- regulation of integrin-mediated signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CD177 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CD177 as an antibody target. Whether an autoantibody or antibody against CD177 could matter depends on whether native CD177 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CD177 is annotated at the cell surface, where native CD177 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label CD177 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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