Seroatlas · Human Serome Atlas

PHF20L1

PHD finger protein 20-like protein 1

Also known as: CGI-72, FLJ13649, FLJ21615, MGC64923, P20L1_HUMAN, TDRD20B

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
A8MW92
Gene
PHF20L1
Ensembl
ENSG00000129292
Chromosome
8
Canonical length
1017 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nucleoplasm,Plasma membrane

OverviewNCBI Gene

Enables methylation-dependent protein binding activity. Involved in negative regulation of proteasomal ubiquitin-dependent protein catabolic process. Predicted to be located in nucleoplasm. Predicted to be part of NSL complex. [provided by Alliance of Genome Resources, Jul 2025]

Canonical amino-acid sequenceUniProt

1017 residues, UniProt reviewed canonical sequence.

>A8MW92|PHF20L1
     1  MSKKPPNRPG ITFEIGARLE ALDYLQKWYP SRIEKIDYEE GKMLVHFERW SHRYDEWIYW
    61  DSNRLRPLER PALRKEGLKD EEDFFDFKAG EEVLARWTDC RYYPAKIEAI NKEGTFTVQF
   121  YDGVIRCLKR MHIKAMPEDA KGQVKSQHPL SWCCPIDPAG SCNQSMGSED WIALVKAAAA
   181  AAAKNKTGSK PRTSANSNKD KDKDERKWFK VPSKKEETST CIATPDVEKK EDLPTSSETF
   241  GLHVENVPKM VFPQPESTLS NKRKNNQGNS FQAKRARLNK ITGLLASKAV GVDGAEKKED
   301  YNETAPMLEQ AISPKPQSQK KNEADISSSA NTQKPALLSS TLSSGKARSK KCKHESGDSS
   361  GCIKPPKSPL SPELIQVEDL TLVSQLSSSV INKTSPPQPV NPPRPFKHSE RRRRSQRLAT
   421  LPMPDDSVEK VSSPSPATDG KVFSISSQNQ QESSVPEVPD VAHLPLEKLG PCLPLDLSRG
   481  SEVTAPVASD SSYRNECPRA EKEDTQMLPN PSSKAIADGR GAPAAAGISK TEKKVKLEDK
   541  SSTAFGKRKE KDKERREKRD KDHYRPKQKK KKKKKKKSKQ HDYSDYEDSS LEFLERCSSP
   601  LTRSSGSSLA SRSMFTEKTT TYQYPRAILS VDLSGENLSD VDFLDDSSTE SLLLSGDEYN
   661  QDFDSTNFEE SQDEDDALNE IVRCICEMDE ENGFMIQCEE CLCWQHSVCM GLLEESIPEQ
   721  YICYICRDPP GQRWSAKYRY DKEWLNNGRM CGLSFFKENY SHLNAKKIVS THHLLADVYG
   781  VTEVLHGLQL KIGILKNKHH PDLHLWACSG KRKDQDQIIA GVEKKIAQDT VNREEKKYVQ
   841  NHKEPPRLPL KMEGTYITSE HSYQKPQSFG QDCKSLADPG SSDDDDVSSL EEEQEFHMRS
   901  KNSLQYSAKE HGMPEKNPAE GNTVFVYNDK KGTEDPGDSH LQWQLNLLTH IENVQNEVTS
   961  RMDLIEKEVD VLESWLDFTG ELEPPDPLAR LPQLKRHIKQ LLIDMGKVQQ IATLCSV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PHF20L1 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.59
Highest tissue expression
24 nTPM

Expression across tissuesHPA

Tissue

  • thymus: 24 nTPM
  • bone marrow: 24 nTPM
  • thyroid gland: 21 nTPM
  • tongue: 17 nTPM
  • heart muscle: 16 nTPM
  • skeletal muscle: 16 nTPM

Single-cell type

  • neutrophils: 1,313 nCPM
  • neutrophil progenitors: 540 nCPM
  • platelets: 237 nCPM
  • monocytes: 197 nCPM
  • pituicytes/fscs: 194 nCPM
  • somatotrophs: 187 nCPM

Immune cell

  • neutrophil: 13 nTPM
  • eosinophil: 7 nTPM
  • classical monocyte: 3.9 nTPM
  • myeloid DC: 3.6 nTPM
  • non-classical monocyte: 3.6 nTPM
  • basophil: 3.5 nTPM

Brain region

  • cerebral cortex: 35 nTPM
  • cerebellum: 32 nTPM
  • choroid plexus: 32 nTPM
  • white matter: 31 nTPM
  • basal ganglia: 31 nTPM
  • hippocampal formation: 28 nTPM

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.

gnomAD LOEUF (loss-of-function intolerance)
0.19
gnomAD pLI
1
gnomAD missense Z
1.85
DepMap mean gene effect
0.04
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 17% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of PHF20L1 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 PHF20L1 as an antibody target. Whether an autoantibody or antibody against PHF20L1 could matter depends on whether native PHF20L1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PHF20L1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label PHF20L1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PHF20L1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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