EXPH5
Exophilin-5
Also known as: EXPH5_HUMAN, SLAC2-B
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8NEV8
- Gene
- EXPH5
- Ensembl
- ENSG00000110723
- Chromosome
- 11
- Canonical length
- 1989 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins
OverviewNCBI Gene
The protein encoded by this gene is a member of the synaptotagmin-like protein (Slp) family lacking a C2 domain. It contains an N-terminal synaptotagmin-like homology domain (SHD), and is a ras-related protein Rab-27B effector protein. This protein is thought to be involved in exosome secretion and intracellular vesicle trafficking. Reduced expression of this gene results in keratin filament defects. Mutations in this gene have been associated with some cases of epidermolysis bullosa, an inherited skin fragility disorder. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]
Canonical amino-acid sequenceUniProt
1989 residues, UniProt reviewed canonical sequence.
>Q8NEV8|EXPH5
1 MTKVPPAFDF SFLNDEEARK ILQVLERNEE LQRAEKDRIS KLQKTKRDIR WLQGVTGEWF
61 EEIQRKKFCN ETDVSQMLKQ PLTYRLSKEM AKNDPIELPT SRSKNVTNQK KPTPFSSRMS
121 FRSSFASLFS FRKSGKETSK LPSLGQKGCD GHAGPPMPVR GAAVQAKIYN SPLENHLVDS
181 TFVPKPAVMR EESGMPPPWD ASLLENEFFQ VLDDLDSKLA QEQSASSVNT RTPLNYGSRT
241 QFGHFYSSGN RHGNITERHK KHYNETSNMS IYDILRPGTP REGFKTFSPR TSTIYDMYRT
301 REPRVFKEDY VQKNTFGSTS LCFDSRQRSA LPATGHFTAR SLHFPATTQS KSGFIPPRHQ
361 QSPKRTPLSS IIWNRSDSSR DRENQEEFLR APSPMEIDPA DKYVYPRGFQ ENKRYESYHS
421 QNVYQRVSLN APMENAMSPD TFENSENMPF YHQSNTFTRS FFSNTFGRSG EQRRFGQGPF
481 WGQEKGHSFW SDFHRSRKSF SSSDRDFEMI SMEANSVSAI HGHNVSSEHW ESFSSGYGTD
541 VSRGQEEPHP WQFDFQRSTL DSMVVSHGNE TQLTPHFGTP NVCSMTGSSY HVKSSELVSQ
601 QDSSPVEVHI NKEASSFGIA QTLASSFKTS FSQISDDRRN PQSPNLQNPT VTLQKIFPNK
661 PASHPMRSHT EVTVTSSNSV DSLPLAKSQP NILVTEVNNE KDLNESISEE DKQLSKMDQT
721 NKAGEIPQPV SQTGISNSLP DFQNPLSQDS AKSNGFGFNA STIISSKKSP RVFSRKDTSK
781 MYIPHTDKSN DIKQDKRFTE NRKLGSTASL PFIQEHRTPP SFPRTDQGCH QELTVNNEDI
841 SRIITNNHWS SALTDTQNAQ YSKCKLTPGH KTSCDSLDLS SAALPDSSPS KNSSLDAPVV
901 PSTTVFSRRS PSDKDPSLGE REEKDNAGKN QKNQFIVSHS ENQERNDSPV PTHDEVVDVK
961 CHSHSPFRNE RGKGKIRHHI SCIEKLSKTE SISVPTSDHR SLIEANQSNS KVSELDTIYC
1021 TLPRKSSSFL IHGRQSGSKI MAASLRNGPP PFQIKNNVED AMGNYMLNKF SPSSPESANE
1081 CSKVLSDSAL EAPEATERMT NVKSSGSTSV RKGPLPFLIN RAMSCPSGEP HASTGREGRK
1141 KPLTSGMDAS ELTPRAWERI ISPVESDSSV RDCSLTKRQH QKENFQEYTE KEGKMAASRR
1201 SVFALSNEDP LPFCSDLSGK ERGKTLHKVK TTSTFSVSGD EDNVKCLEVV SIYYTLPRKP
1261 SKKFCNLLQQ YTQNTNLLIE SPQVETETFP NALEKDKQNY STREQSGTPS CENLKMSVNS
1321 DQTLTTENMT AFRLSNRGPL APTLQEMASV EAAVSLPEEE SKAREIFSDN LAKTPLGDSE
1381 NKKERGKKLQ SETLHTSLML QRKNVSEEKS ENCQQSINSS NSGPSSLPAL SEVNIGNSQT
1441 RRSSWECTGS GRAIPFTGSG KCPQKDHTST AVGDGSSGSQ PREGRGDIGT NCQKMTNKTL
1501 SHSESQVFAL TPALHKLQLG EETQSDEPNL ESLQSEPREL PQRSQEANMT ESRKAEDEMQ
1561 KSAWDQPSLP EGNKNKTNLD DLVKGENRSS VKHRLAAMSK ASRKFPAKDV SPRRHVATIF
1621 PQSGSRSGFD HLSLGTVECN PLFPEPTPKS AESIGESRLS ENGKHVKKSE NLLPITVLPN
1681 REPSTHVSNQ KSNSISQRHQ NEFKNVSESP SKHENSKDVT AAQNLVRESG APSPITFTSL
1741 REAEFSDNQR RLSPPFPLEP AQKSRVSSPL ASFLQQQRSA SSLEWEPEPH LYRSKSLKSI
1801 NVHGDLLRKS HPPKVRERHF SESTSIDNAL SRLTLGNEFS VNNGYSRRFR SFSELPSCDG
1861 NESWAYRSGT KTGPRSAISI YRPIDYGIFG KEQQLAFLEN VKRSLTQGRL WKPSFLKNPG
1921 FLKDDLRNPP NPSESLSSNS PSSQVPEDGL SPSEPLNIYE DDPVDSDCDT DTTTDDEYYL
1981 DENDKESELLocalizationUniProt · AlphaFold · HPA
Whether an antibody against EXPH5 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)
- 0.66
- Highest tissue expression
- 24 nTPM
Expression across tissuesHPA
Tissue
- skin: 24 nTPM
- cerebellum: 15 nTPM
- liver: 7.2 nTPM
- esophagus: 7 nTPM
- parathyroid gland: 4.4 nTPM
- rectum: 4.1 nTPM
Single-cell type
- podocytes: 908 nCPM
- endometrial glandular cells: 405 nCPM
- endometrial ciliated cells: 346 nCPM
- basal keratinocytes: 273 nCPM
- ependymal cells: 251 nCPM
- alveolar cells type 1: 217 nCPM
Immune cell
- NK-cell: 0.9 nTPM
- basophil: 0.8 nTPM
- neutrophil: 0.8 nTPM
- naive CD4 T-cell: 0.5 nTPM
- naive CD8 T-cell: 0.5 nTPM
- memory B-cell: 0.2 nTPM
Brain region
- cerebellum: 144 nTPM
- choroid plexus: 30 nTPM
- pons: 13 nTPM
- midbrain: 11 nTPM
- white matter: 10 nTPM
- basal ganglia: 8.5 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about EXPH5.
Disease | AllUniProt
Conditions EXPH5 is implicated in, by any mechanism.
- Epidermolysis bullosa simplex 4, localized or generalized intermediate, autosomal recessive (EBS4) MIM:615028
Disease | GeneticClinVar
16 pathogenic / likely-pathogenic of 432 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Epidermolysis bullosa simplex 4, localized or generalized intermediate, autosomal recessive
- Inborn genetic diseases
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)
- 0.94
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.27
- DepMap mean gene effect
- 0.06
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- intracellular protein transport
- keratinocyte development
- multivesicular body sorting pathway
- positive regulation of exocytosis
- positive regulation of protein secretion
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Rab-binding domain
- Exophilin-5
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of EXPH5 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 EXPH5 as an antibody target. Whether an autoantibody or antibody against EXPH5 could matter depends on whether native EXPH5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
EXPH5 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 EXPH5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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