Seroatlas · Human Serome Atlas

ROBO2

Roundabout homolog 2

Also known as: KIAA1568, ROBO2_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9HCK4
Gene
ROBO2
Ensembl
ENSG00000185008
Chromosome
3
Canonical length
1378 aa
Protein class
Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins
Subcellular location
Vesicles,Plasma membrane

OverviewNCBI Gene

The protein encoded by this gene belongs to the ROBO family, part of the immunoglobulin superfamily of proteins that are highly conserved from fly to human. The encoded protein is a transmembrane receptor for the slit homolog 2 protein and functions in axon guidance and cell migration. Mutations in this gene are associated with vesicoureteral reflux, characterized by the backward flow of urine from the bladder into the ureters or the kidney. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

Canonical amino-acid sequenceUniProt

1378 residues, UniProt reviewed canonical sequence.

>Q9HCK4|ROBO2
     1  MSLLMFTQLL LCGFLYVRVD GSRLRQEDFP PRIVEHPSDV IVSKGEPTTL NCKAEGRPTP
    61  TIEWYKDGER VETDKDDPRS HRMLLPSGSL FFLRIVHGRR SKPDEGSYVC VARNYLGEAV
   121  SRNASLEVAL LRDDFRQNPT DVVVAAGEPA ILECQPPRGH PEPTIYWKKD KVRIDDKEER
   181  ISIRGGKLMI SNTRKSDAGM YTCVGTNMVG ERDSDPAELT VFERPTFLRR PINQVVLEEE
   241  AVEFRCQVQG DPQPTVRWKK DDADLPRGRY DIKDDYTLRI KKTMSTDEGT YMCIAENRVG
   301  KMEASATLTV RAPPQFVVRP RDQIVAQGRT VTFPCETKGN PQPAVFWQKE GSQNLLFPNQ
   361  PQQPNSRCSV SPTGDLTITN IQRSDAGYYI CQALTVAGSI LAKAQLEVTD VLTDRPPPII
   421  LQGPANQTLA VDGTALLKCK ATGDPLPVIS WLKEGFTFPG RDPRATIQEQ GTLQIKNLRI
   481  SDTGTYTCVA TSSSGETSWS AVLDVTESGA TISKNYDLSD LPGPPSKPQV TDVTKNSVTL
   541  SWQPGTPGTL PASAYIIEAF SQSVSNSWQT VANHVKTTLY TVRGLRPNTI YLFMVRAINP
   601  QGLSDPSPMS DPVRTQDISP PAQGVDHRQV QKELGDVLVR LHNPVVLTPT TVQVTWTVDR
   661  QPQFIQGYRV MYRQTSGLQA TSSWQNLDAK VPTERSAVLV NLKKGVTYEI KVRPYFNEFQ
   721  GMDSESKTVR TTEEAPSAPP QSVTVLTVGS YNSTSISVSW DPPPPDHQNG IIQEYKIWCL
   781  GNETRFHINK TVDAAIRSVI IGGLFPGIQY RVEVAASTSA GVGVKSEPQP IIIGRRNEVV
   841  ITENNNSITE QITDVVKQPA FIAGIGGACW VILMGFSIWL YWRRKKRKGL SNYAVTFQRG
   901  DGGLMSNGSR PGLLNAGDPS YPWLADSWPA TSLPVNNSNS GPNEIGNFGR GDVLPPVPGQ
   961  GDKTATMLSD GAIYSSIDFT TKTSYNSSSQ ITQATPYATT QILHSNSIHE LAVDLPDPQW
  1021  KSSIQQKTDL MGFGYSLPDQ NKGNNGGKGG KKKKNKNSSK PQKNNGSTWA NVPLPPPPVQ
  1081  PLPGTELEHY AVEQQENGYD SDSWCPPLPV QTYLHQGLED ELEEDDDRVP TPPVRGVASS
  1141  PAISFGQQST ATLTPSPREE MQPMLQAHLD ELTRAYQFDI AKQTWHIQSN NQPPQPPVPP
  1201  LGYVSGALIS DLETDVADDD ADDEEEALEI PRPLRALDQT PGSSMDNLDS SVTGKAFTSS
  1261  QRPRPTSPFS TDSNTSAALS QSQRPRPTKK HKGGRMDQQP ALPHRREGMT DEEALVPYSK
  1321  PSFPSPGGHS SSGTASSKGS TGPRKTEVLR AGHQRNASDL LDIGYMGSNS QGQFTGEL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ROBO2 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
1
Mean surface accessibility (rSASA)
0.45
Highest tissue expression
13 nTPM

Expression across tissuesHPA

Tissue

  • ovary: 13 nTPM
  • cerebral cortex: 10 nTPM
  • retina: 7.4 nTPM
  • lung: 6.8 nTPM
  • thymus: 5.7 nTPM
  • seminal vesicle: 4 nTPM

Single-cell type

  • retinal ganglion cells: 3,971 nCPM
  • brain inhibitory neurons: 3,594 nCPM
  • retinal bipolar cells: 2,300 nCPM
  • somatotrophs: 1,964 nCPM
  • brain excitatory neurons: 1,736 nCPM
  • lactotrophs: 1,602 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

  • spinal cord: 36 nTPM
  • pons: 34 nTPM
  • cerebral cortex: 33 nTPM
  • midbrain: 32 nTPM
  • basal ganglia: 28 nTPM
  • white matter: 27 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about ROBO2.

Disease | AllUniProt

Conditions ROBO2 is implicated in, by any mechanism.

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
gnomAD missense Z
1.65
DepMap mean gene effect
-0.04
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of ROBO2 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 ROBO2 as an antibody target. Whether an autoantibody or antibody against ROBO2 could matter depends on whether native ROBO2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ROBO2 is annotated at the cell surface, where native ROBO2 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 ROBO2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ROBO2. 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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