CCDC88A
Girdin
Also known as: APE, FLJ10392, GIV, GRDN, GRDN_HUMAN, HkRP1, KIAA1212
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q3V6T2
- Gene
- CCDC88A
- Ensembl
- ENSG00000115355
- Chromosome
- 2
- Canonical length
- 1871 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Plasma membrane,Centrosome,Basal body
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes a member of the Girdin family of coiled-coil domain containing proteins. The encoded protein is an actin-binding protein that is activated by the serine/threonine kinase Akt and plays a role in cytoskeleton remodeling and cell migration. The encoded protein also enhances Akt signaling by mediating phosphoinositide 3-kinase (PI3K)-dependent activation of Akt by growth factor receptor tyrosine kinases and G protein-coupled receptors. Increased expression of this gene and phosphorylation of the encoded protein may play a role in cancer metastasis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]
Canonical amino-acid sequenceUniProt
1871 residues, UniProt reviewed canonical sequence.
>Q3V6T2|CCDC88A
1 MENEIFTPLL EQFMTSPLVT WVKTFGPLAA GNGTNLDEYV ALVDGVFLNQ VMLQINPKLE
61 SQRVNKKVNN DASLRMHNLS ILVRQIKFYY QETLQQLIMM SLPNVLIIGK NPFSEQGTEE
121 VKKLLLLLLG CAVQCQKKEE FIERIQGLDF DTKAAVAAHI QEVTHNQENV FDLQWMEVTD
181 MSQEDIEPLL KNMALHLKRL IDERDEHSET IIELSEERDG LHFLPHASSS AQSPCGSPGM
241 KRTESRQHLS VELADAKAKI RRLRQELEEK TEQLLDCKQE LEQMEIELKR LQQENMNLLS
301 DARSARMYRD ELDALREKAV RVDKLESEVS RYKERLHDIE FYKARVEELK EDNQVLLETK
361 TMLEDQLEGT RARSDKLHEL EKENLQLKAK LHDMEMERDM DRKKIEELME ENMTLEMAQK
421 QSMDESLHLG WELEQISRTS ELSEAPQKSL GHEVNELTSS RLLKLEMENQ SLTKTVEELR
481 TTVDSVEGNA SKILKMEKEN QRLSKKVEIL ENEIVQEKQS LQNCQNLSKD LMKEKAQLEK
541 TIETLRENSE RQIKILEQEN EHLNQTVSSL RQRSQISAEA RVKDIEKENK ILHESIKETS
601 SKLSKIEFEK RQIKKELEHY KEKGERAEEL ENELHHLEKE NELLQKKITN LKITCEKIEA
661 LEQENSELER ENRKLKKTLD SFKNLTFQLE SLEKENSQLD EENLELRRNV ESLKCASMKM
721 AQLQLENKEL ESEKEQLKKG LELLKASFKK TERLEVSYQG LDIENQRLQK TLENSNKKIQ
781 QLESELQDLE MENQTLQKNL EELKISSKRL EQLEKENKSL EQETSQLEKD KKQLEKENKR
841 LRQQAEIKDT TLEENNVKIG NLEKENKTLS KEIGIYKESC VRLKELEKEN KELVKRATID
901 IKTLVTLRED LVSEKLKTQQ MNNDLEKLTH ELEKIGLNKE RLLHDEQSTD DSRYKLLESK
961 LESTLKKSLE IKEEKIAALE ARLEESTNYN QQLRQELKTV KKNYEALKQR QDEERMVQSS
1021 PPISGEDNKW ERESQETTRE LLKVKDRLIE VERNNATLQA EKQALKTQLK QLETQNNNLQ
1081 AQILALQRQT VSLQEQNTTL QTQNAKLQVE NSTLNSQSTS LMNQNAQLLI QQSSLENENE
1141 SVIKEREDLK SLYDSLIKDH EKLELLHERQ ASEYESLISK HGTLKSAHKN LEVEHRDLED
1201 RYNQLLKQKG QLEDLEKMLK VEQEKMLLEN KNHETVAAEY KKLCGENDRL NHTYSQLLKE
1261 TEVLQTDHKN LKSLLNNSKL EQTRLEAEFS KLKEQYQQLD ITSTKLNNQC ELLSQLKGNL
1321 EEENRHLLDQ IQTLMLQNRT LLEQNMESKD LFHVEQRQYI DKLNELRRQK EKLEEKIMDQ
1381 YKFYDPSPPR RRGNWITLKM RKLIKSKKDI NRERQKSLTL TPTRSDSSEG FLQLPHQDSQ
1441 DSSSVGSNSL EDGQTLGTKK SSMVALKRLP FLRNRPKDKD KMKACYRRSM SMNDLVQSMV
1501 LAGQWTGSTE NLEVPDDIST GKRRKELGAM AFSTTAINFS TVNSSAGFRS KQLVNNKDTT
1561 SFEDISPQGV SDDSSTGSRV HASRPASLDS GRTSTSNSNN NASLHEVKAG AVNNQSRPQS
1621 HSSGEFSLLH DHEAWSSSGS SPIQYLKRQT RSSPVLQHKI SETLESRHHK IKTGSPGSEV
1681 VTLQQFLEES NKLTSVQIKS SSQENLLDEV MKSLSVSSDF LGKDKPVSCG LARSVSGKTP
1741 GDFYDRRTTK PEFLRPGPRK TEDTYFISSA GKPTPGTQGK IKLVKESSLS RQSKDSNPYA
1801 TLPRASSVIS TAEGTTRRTS IHDFLTKDSR LPISVDSPPA AADSNTTAAS NVDKVQESRN
1861 SKSRSREQQS SLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CCDC88A 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)
- 0.53
- Highest tissue expression
- 66 nTPM
Expression across tissuesHPA
Tissue
- spinal cord: 66 nTPM
- midbrain: 58 nTPM
- hippocampal formation: 57 nTPM
- amygdala: 49 nTPM
- basal ganglia: 48 nTPM
- testis: 44 nTPM
Single-cell type
- late spermatids: 1,270 nCPM
- early spermatids: 953 nCPM
- oligodendrocytes: 953 nCPM
- monocyte progenitors: 529 nCPM
- early primary spermatocytes: 518 nCPM
- late primary spermatocytes: 485 nCPM
Immune cell
- plasmacytoid DC: 24 nTPM
- myeloid DC: 11 nTPM
- classical monocyte: 7.1 nTPM
- intermediate monocyte: 7 nTPM
- non-classical monocyte: 6.8 nTPM
- basophil: 6.1 nTPM
Brain region
- white matter: 124 nTPM
- basal ganglia: 94 nTPM
- thalamus: 89 nTPM
- midbrain: 86 nTPM
- medulla oblongata: 80 nTPM
- pons: 78 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CCDC88A.
Disease | AllUniProt
Conditions CCDC88A is implicated in, by any mechanism.
- PEHO-like syndrome (PEHOL) MIM:617507
Disease | GeneticClinVar
36 pathogenic / likely-pathogenic of 1,172 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- PEHO-like syndrome
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)
- 0.13
- gnomAD pLI
- 1
- gnomAD missense Z
- 2.35
- DepMap mean gene effect
- -0.16
- DepMap dependency class
- selective
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
- activation of protein kinase activity
- cell migration
- cytoplasmic microtubule organization
- cytoskeleton-dependent intracellular transport
- lamellipodium assembly
- maintenance of protein location in plasma membrane
- membrane organization
- nervous system development
- positive regulation of cilium assembly
- positive regulation of epidermal growth factor receptor signaling pathway
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- positive regulation of protein localization to cilium
- positive regulation of stress fiber assembly
- regulation of actin cytoskeleton organization
- regulation of cell population proliferation
- regulation of neuron projection development
- small GTPase-mediated signal transduction
- TOR signaling
Molecular functions
- actin binding
- dynein light intermediate chain binding
- epidermal growth factor receptor binding
- G-protein alpha-subunit binding
- GDP-dissociation inhibitor activity
- guanyl-nucleotide exchange factor activity
- insulin receptor binding
- microtubule binding
- phosphatidylinositol binding
- protein homodimerization activity
- protein kinase B binding
- protein kinase C binding
- protein serine/threonine kinase activator activity
- SH2 domain binding
- vascular endothelial growth factor receptor 2 binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CCDC88A 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 CCDC88A as an antibody target. Whether an autoantibody or antibody against CCDC88A could matter depends on whether native CCDC88A is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CCDC88A is annotated at the cell surface, where native CCDC88A 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 CCDC88A as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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