ICE1
Little elongation complex subunit 1
Also known as: ICE1_HUMAN, KIAA0947
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9Y2F5
- Gene
- ICE1
- Ensembl
- ENSG00000164151
- Chromosome
- 5
- Canonical length
- 2266 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nuclear bodies
OverviewNCBI Gene
Enables protein-macromolecule adaptor activity. Involved in several processes, including positive regulation of intracellular protein transport; positive regulation of transcription by RNA polymerase III; and snRNA transcription. Located in Cajal body; euchromatin; and histone locus body. Part of transcription elongation factor complex. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
2266 residues, UniProt reviewed canonical sequence.
>Q9Y2F5|ICE1
1 MMPGETHSAA PGTAADLSRC QGCASLQQNL NEYVEALITL KQKIINTDNL LTEYQKKCDE
61 LQFARRENSN LHHQVEEMLQ KISPLQKCQE ELGSLKAELE EKKSSLKLYQ DTHQEYARVK
121 EECLKSDAQK KKLEAKVKKL QEAAVKQTQD FKQLRNEKKI LEKEFKKTQE RLDEFSKQKN
181 EKELRHIGTQ ISSDSYGSID KRKVKLLLKE LWLCVNTTHR LPGEGSRCVP EKPAKAITSS
241 RVPGEDGTLP PTQGSPLRTS NVQTCLTKLS MEIKEDFLCQ NVEKQSSSGT NCSSDHVFNE
301 NGNLEVLVQS HRDGGSTEFV DHDHFFDEDL QAAIDFFKLP PPLLSPVPSP PPMSSPHPGS
361 LPSSFAPETY FGEYTDSSDN DSVQLRNSAE CVSEDDTTES QNYFGSLRKN KGSGTWEEKP
421 KSHEAIQALN TWEVNKVTTS GLETFTATLR ESSATHSLVG EKHWTTASRS MSDRKRDILH
481 ETKTQMEVRE MDKSVQTEKT IHKLTRGLCI ERLSASPAQE KEAAPGKSEL CSSPLGKRPL
541 NELMESEGKT VLSKMMGSPK SEFTKWTRIN EITSEPDRIT VSGHFHRLSR ELEKEKEDTQ
601 GFTLGESPES EDDDSGDGMD VAGLDIETSF SSSSTLVALS VGSNPQSSSG LDCGNDTDIT
661 TKVFSTEPHH SEHKLQTKTL NTLHLQSEPP ECSIGGNNLE NSLCALSPEL GASNFNDQKS
721 SGIEYTKVVK GLTKIHSLPR SVFMKATKDG QCESQDPRIE LTLNKPDFTS LIGSQAALIK
781 SGLGFVKSTS WHHSDLLRKG GEESLRAKSE HEQKTSHQLQ KAMPFLQNRG PTPKPDLLRE
841 NNNPVEFKTT ASVLPNQVSV ITKQTRPEKV QSAKLEHLRP HRVEPTLVTE NSGNKTGMST
901 VAKCDGERDD TTQNITEVAA VKSISPEVSA SRRKLDFNSP GGSSPVENSD CSTNSRLSFS
961 PENILIQNQD IVREAAVQGD GQKQRQPQAT DLDSSGTHGS EMLPATEVTV SGGFSVEETS
1021 CGDTGRSGGE ALAVANDSTS TPQNANGLWK LKSTTPGGAL PECFGTTDTT FSSAFCRKHG
1081 ETQDTSQSSL PGTLHCYTGI REGGDDTEVE SEAFSCSEGS EQQDAPDDSQ KNLGDTDAAV
1141 AEVRPSLEVG YLTSALQDFN ISTFSELDRL STSEVVMFLE SCQLGDYSSG DSVSECSSKG
1201 TLSKEMNKEL KASEIGEKYR KQPCEEETLG TCEEWIESEE DDYSLKNTSQ LTQCSLETLS
1261 EVLTKIRQEL QTNSEDCNGK DTGSLLLLNV NNNMTTENLK EKSPFRETTG SSSHASEPTP
1321 QAAALDTEGS SPISGMPQNE NPQSRPEARS DAGRQTDGGE EDLPEPVEPS ALCSDSVMEP
1381 SIEQSSNCEA ETTFQCQIAT VTSEVINVLI NKDQNLVIEK GDNWTIISGV AVLPHVDQVT
1441 LCDIPGDIPI SQDQGELEAG CIPVTSAEKS PEASHTGPAF QEAPCGNNLS CPQEDVSSSG
1501 QSTNFDKSRL RNRPVKPSIW ISSQIYDQNF ETQIVASDHT YYNSKLEPSG KNKNRSKISN
1561 KDQSNKPVKT SASSRVETHQ SEVAQSFSGE KANTKTQRSQ TQTILANADT STPTDCSPDT
1621 LSKIRQEVGP PLPPLLAPLI ATPPRTSQPL SPLISSSSPS SPASPVGQVS PFRETPVPPA
1681 MSPWPEDPRR ASPPDPSPSP SAASASERVV PSPLQFCAAT PKHALPVPGR LPPCASGHAA
1741 VGGPQENSVK ILDTMYPELS ARARTLNILK GNIQLTRGPP ADCKNLPGPA SAMIGFKTIT
1801 SAATAFVKTG SSSGGDCNQD KSRDLGTQQD SSGKRTLSTS TLRSAKRLRL DTGSPEPETR
1861 GVTAEGIHKN LPGNLPPAEV ATTNEERSCS SPAVSAVSQL PLSPKETVES HDKAIANALK
1921 KIAEFSFDLL PVIRSHVYVG NISKKPVMRD QEKEVVYEFS TTKKHLAECL LHSILSELKI
1981 QKISMDHNYI HALCRVYVGI CRQLGDLERA RLFCYSLLKE DFPESEKLTL FIANMWHDIF
2041 LSQSVINKAM QLVARQRAKG EVLNCLRAFL NWEKNAPVDV GFMVSKLLLT IQLCPKTEFQ
2101 PSEKFGEDLS DNTWEYIFAI DLLCCHQKWI WTHDNIISKE LWPVMDKWIK YRKGHANIAY
2161 TPDIIIASIL RLIGRLGQLG LKEGFPSAVK NISSVIGMFI QHAHDEDIPW GIQLAAVYAL
2221 CDLSPSNPAE ISKILEAWRR EASKSVPSAI VSCLEEVSAL STEELGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ICE1 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
- 16 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 16 nTPM
- tongue: 15 nTPM
- thymus: 14 nTPM
- parathyroid gland: 13 nTPM
- cerebellum: 13 nTPM
- bone marrow: 13 nTPM
Single-cell type
- corticotrophs: 141 nCPM
- somatotrophs: 110 nCPM
- pituicytes/fscs: 108 nCPM
- early primary spermatocytes: 100 nCPM
- lactotrophs: 100 nCPM
- brain excitatory neurons: 99 nCPM
Immune cell
- eosinophil: 1.1 nTPM
- MAIT T-cell: 1.1 nTPM
- NK-cell: 1.1 nTPM
- plasmacytoid DC: 1.1 nTPM
- T-reg: 1.1 nTPM
- gdT-cell: 0.9 nTPM
Brain region
- cerebellum: 34 nTPM
- hippocampal formation: 32 nTPM
- cerebral cortex: 30 nTPM
- basal ganglia: 29 nTPM
- amygdala: 28 nTPM
- white matter: 27 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ICE1.
Disease | ImmuneIEDB
Conditions an epitope on ICE1 was assayed in.
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)
- 0.16
- gnomAD pLI
- 1
- DepMap mean gene effect
- -0.81
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 12% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- positive regulation of intracellular protein transport
- positive regulation of protein-containing complex assembly
- positive regulation of transcription by RNA polymerase III
- snRNA transcription by RNA polymerase II
- snRNA transcription by RNA polymerase III
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Little elongation complex subunit 1, C-terminal domain
- Little elongation complex subunit 1, C-terminal domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ICE1 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 ICE1 as an antibody target. Whether an autoantibody or antibody against ICE1 could matter depends on whether native ICE1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ICE1 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 ICE1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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