Seroatlas · Human Serome Atlas

EPB41L4B

Band 4.1-like protein 4B

Also known as: E41LB_HUMAN, EHM2, LULU2

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

Protein identityUniProt · HPA

UniProt accession
Q9H329
Gene
EPB41L4B
Ensembl
ENSG00000095203
Chromosome
9
Canonical length
900 aa
Protein class
Predicted intracellular proteins
Subcellular location
Plasma membrane,Cytosol

OverviewNCBI Gene

Predicted to be a structural constituent of cytoskeleton. Involved in several processes, including positive regulation of cell adhesion; positive regulation of keratinocyte migration; and wound healing. Acts upstream of or within actomyosin structure organization. Located in apical part of cell; cytosol; and plasma membrane. [provided by Alliance of Genome Resources, Jul 2025]

Canonical amino-acid sequenceUniProt

900 residues, UniProt reviewed canonical sequence.

>Q9H329|EPB41L4B
     1  MLRFLRRTFG RRSMQRYARG AAGRGAAGLG DERDGGPRGG PAAAASSSAL PAAPGGSVFP
    61  AGGGPLLTGG AAVHISAAGA AKATLYCRVF LLDGTEVSVD LPKHAKGQDL FDQIVYHLDL
   121  VETDYFGLQF LDSAQVAHWL DHAKPIKKQM KIGPAYALHF RVKYYSSEPN NLREEFTRYL
   181  FVLQLRHDIL SGKLKCPYET AVELAALCLQ AELGECELPE HTPELVSEFR FIPNQTEAME
   241  FDIFQRWKEC RGKSPAQAEL SYLNKAKWLE MYGVDMHVVR GRDGCEYSLG LTPTGILIFE
   301  GANKIGLFFW PKITKMDFKK SKLTLVVVED DDQGREQEHT FVFRLDSART CKHLWKCAVE
   361  HHAFFRLRTP GNSKSNRSDF IRLGSRFRFS GRTEYQATHG SRLRRTSTFE RKPSKRYPSR
   421  RHSTFKASNP VIAAQLCSKT NPEVHNYQPQ YHPNIHPSQP RWHPHSPNVS YPLPSPVLSS
   481  SDRLPFGIEE NGGTPFLTAA SGRHHHQHQH QHQHQHHSNY SLSLTLENKE GPLRSPNSSS
   541  KSLTKLSPGT PALFSEAAAH LKKLELETVK AAGPWPPLHI NINKAEEKKV SEKTLQTPLL
   601  PSPVADHVKC NILKAQLENA SRVNIQGGKE ESPFVNINKK SSLQDASVRS PIPIRVETAQ
   661  PAVEKPEIKP PRVRKLTRQY SFDEDDLPPD LAEAVGVTTS TTTNTTTAAT QVSVPLPSPK
   721  VQNVSSPHKS EGKGLLSPGA KSPSDRGGAF TLEPGDLLMD FTEATPLAEP ASNPHCAHSR
   781  CSPPLSLPMK EETTGVCMYP PIKTRLIKTF PVDTMNPFPD TFTTGPQFTA DFRDSKLQCC
   841  PGPTSPLIPA ATLRPLTETV STVQTIYTTR KPVSLAASAE TLRQELEREK MMKRLLMTEL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against EPB41L4B 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)
0.54
Highest tissue expression
141 nTPM

Expression across tissuesHPA

Tissue

  • pancreas: 141 nTPM
  • liver: 83 nTPM
  • colon: 54 nTPM
  • rectum: 53 nTPM
  • small intestine: 49 nTPM
  • duodenum: 45 nTPM

Single-cell type

  • pancreatic acinar cells: 448 nCPM
  • hepatocytes: 226 nCPM
  • colonocytes: 179 nCPM
  • retinal horizontal cells: 166 nCPM
  • respiratory ciliated cells: 149 nCPM
  • adipocytes: 128 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • cerebral cortex: 37 nTPM
  • choroid plexus: 37 nTPM
  • hypothalamus: 34 nTPM
  • basal ganglia: 29 nTPM
  • spinal cord: 26 nTPM
  • amygdala: 24 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)
0.24
gnomAD pLI
1
gnomAD missense Z
1.25
DepMap mean gene effect
0.04
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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 EPB41L4B 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 EPB41L4B as an antibody target. Whether an autoantibody or antibody against EPB41L4B could matter depends on whether native EPB41L4B is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

EPB41L4B is annotated at the cell surface, where native EPB41L4B 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 EPB41L4B as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/EPB41L4B. 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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