FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\Hrb27C
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General Information
Symbol
Dmel\Hrb27C
Species
D. melanogaster
Name
Heterogeneous nuclear ribonucleoprotein at 27C
Annotation Symbol
CG10377
Feature Type
FlyBase ID
FBgn0004838
Gene Model Status
Stock Availability
Gene Summary
This protein is a component of ribonucleosomes. Could be needed to organize a concentration gradient of a dorsalizing morphogen (Dm) originating in the germinal vesicle. Interacts with grk mRNA (via 3' UTR) and involved in its localization to the dorsal anterior region of the oocyte during dorsal-ventral axis determination; may function as a ribonuclear protein complex together with sqd and otu (PubMed:15056611). Required for polytene chromosome dispersal in nurse cells during oogenesis (PubMed:15056611). May be involved in the regulation of splicing (PubMed:9372958). (UniProt, P48809)
Contribute a Gene Snapshot for this gene.
Also Known As

hrp48, p50, linha, RRM7, l(2)02647

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-23
RefSeq locus
NT_033779 REGION:6920704..6932057
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (23 terms)
Molecular Function (9 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from physical interaction with FLYBASE:glo; FB:FBgn0259139
inferred from direct assay
inferred from mutant phenotype
Terms Based on Predictions or Assertions (6 terms)
CV Term
Evidence
References
traceable author statement
inferred from biological aspect of ancestor with PANTHER:PTN002689981
traceable author statement
enables mRNA binding
inferred from sequence or structural similarity
inferred from electronic annotation with InterPro:IPR035979
inferred from biological aspect of ancestor with PANTHER:PTN002689981
enables RNA binding
inferred from electronic annotation with InterPro:IPR000504, InterPro:IPR034131
Biological Process (7 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
involved_in spermatogenesis
inferred from biological aspect of ancestor with PANTHER:PTN001924359
Cellular Component (7 terms)
Terms Based on Experimental Evidence (6 terms)
CV Term
Evidence
References
located_in cytoplasm
inferred from high throughput direct assay
inferred from direct assay
located_in nucleoplasm
inferred from direct assay
located_in nucleus
inferred from high throughput direct assay
located_in P granule
inferred from physical interaction with FLYBASE:tud; FB:FBgn0003891
inferred from physical interaction with FLYBASE:vas; FB:FBgn0283442
inferred from physical interaction with FLYBASE:glo; FB:FBgn0259139
inferred from direct assay
inferred from physical interaction with FLYBASE:sqd; FB:FBgn0263396
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
is_active_in nucleus
inferred from biological aspect of ancestor with PANTHER:PTN004470902
inferred from biological aspect of ancestor with PANTHER:PTN004470902
inferred from biological aspect of ancestor with PANTHER:PTN004470902
inferred from sequence or structural similarity with UniProtKB:P09651
Gene Group (FlyBase)
Protein Family (UniProt)
-
Summaries
Protein Function (UniProtKB)
This protein is a component of ribonucleosomes. Could be needed to organize a concentration gradient of a dorsalizing morphogen (Dm) originating in the germinal vesicle. Interacts with grk mRNA (via 3' UTR) and involved in its localization to the dorsal anterior region of the oocyte during dorsal-ventral axis determination; may function as a ribonuclear protein complex together with sqd and otu (PubMed:15056611). Required for polytene chromosome dispersal in nurse cells during oogenesis (PubMed:15056611). May be involved in the regulation of splicing (PubMed:9372958).
(UniProt, P48809)
Gene Model and Products
Number of Transcripts
8
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Hrb27C for information on other features

To submit a correction to a gene model please use the Contact FlyBase form

Protein Domains (via Pfam)
Isoform displayed:
Pfam protein domains
InterPro name
classification
start
end
Protein Domains (via SMART)
Isoform displayed:
SMART protein domains
InterPro name
classification
start
end
Structure
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry P48809)

If you don't see a structure in the viewer, refresh your browser.
Model Confidence:
  • Very high (pLDDT > 90)
  • Confident (90 > pLDDT > 70)
  • Low (70 > pLDDT > 50)
  • Very low (pLDDT < 50)

AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.

Experimentally Determined Structures
Crossreferences
PDB - An information portal to biological macromolecular structures
Comments on Gene Model

Annotated transcripts do not represent all supported alternative splices within 5' UTR.

Low-frequency RNA-Seq exon junction(s) not annotated.

Annotated transcripts do not represent all possible combinations of alternative exons and/or alternative promoters.

Gene model reviewed during 5.46

Gene model reviewed during 5.45

Tissue-specific extension of 3' UTRs observed during later stages (FBrf0218523, FBrf0219848); all variants may not be annotated

Stage-specific extension of 3' UTRs observed during embryogenesis (FBrf0215804); all variants may not be annotated.

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0079346
2993
421
FBtr0079348
5830
421
FBtr0079347
2256
421
FBtr0301403
2137
421
FBtr0301404
2110
421
FBtr0307030
4789
421
FBtr0307031
2943
421
FBtr0307032
8240
421
Additional Transcript Data and Comments
Reported size (kB)

4.1, 2.1 (northern blot)

1.7 (longest cDNA)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0078974
44.8
421
6.79
FBpp0078976
44.8
421
6.79
FBpp0078975
44.8
421
6.79
Polypeptides with Identical Sequences

The group(s) of polypeptides indicated below share identical sequence to each other.

Additional Polypeptide Data and Comments
Reported size (kDa)

48 (kD observed)

385 (aa); 48 (kD observed); 41 (kD predicted)

Comments

Hrb protein was purified by RNA affinity

chromatography. It was shown to recognize specific nucleotides in a

pseudo-5' splice site within the inhibitory element of the P-element third

intron. A correction to the published sequence is presented which predicts

a larger size for the Hrb27C protein.

External Data
Subunit Structure (UniProtKB)

Interacts with sqd; the interaction is RNA-dependent and may be specific for sqd isoform A/sqdA (PubMed:15056611). Interacts with otu; the interaction is RNA-independent (PubMed:15056611).

(UniProt, P48809)
Crossreferences
PDB - An information portal to biological macromolecular structures
Linkouts
Sequences Consistent with the Gene Model
Nucleotide / Polypeptide Records
 
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Hrb27C using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Expression Data
Testis-specificity index

The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).

-1.04

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

organism

Comment: extended 3' UTR isoform

northern blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Zygotic-specific isoforms of Hrb27C with long 3' UTR extensions were observed.

Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
western blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Hrb27C protein is detected at high levels in embryo, Kc cell, and ovary nuclear extracts. Whole-mount immunostaining shows that Hrb27C protein is present in somatic and germ-line cells.

Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in cytoplasm
inferred from high throughput direct assay
inferred from direct assay
located_in nucleoplasm
inferred from direct assay
located_in nucleus
inferred from high throughput direct assay
located_in P granule
inferred from physical interaction with FLYBASE:tud; FB:FBgn0003891
inferred from physical interaction with FLYBASE:vas; FB:FBgn0283442
inferred from physical interaction with FLYBASE:glo; FB:FBgn0259139
inferred from direct assay
inferred from physical interaction with FLYBASE:sqd; FB:FBgn0263396
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Hrb27C in JBrowse
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Reference
See Gelbart and Emmert, 2013 for analysis details and data files for all genes.
Developmental Proteome: Life Cycle
Developmental Proteome: Embryogenesis
External Data and Images
Linkouts
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 37 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 17 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Hrb27C
Transgenic constructs containing regulatory region of Hrb27C
Aberrations (Deficiencies and Duplications) ( 7 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
nurse cell & nuclear chromosome (with Hrb27C377)
nurse cell & nuclear chromosome (with Hrb27C02647)
oocyte & cytoskeleton | germ-line clone
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (111)
12 of 14
Yes
Yes
5 of 14
No
No
1  
5 of 14
No
No
1  
2 of 14
No
No
4  
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
3  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
No
2  
1 of 14
No
No
3  
1 of 14
No
No
2  
1 of 14
No
No
83  
1 of 14
No
No
1 of 14
No
No
5  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
13  
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
4  
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
20  
1 of 14
No
No
2  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
144  
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
2  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
4  
1 of 14
No
Yes
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (54)
12 of 14
Yes
Yes
5 of 14
No
No
4 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Mus musculus (laboratory mouse) (66)
12 of 14
Yes
Yes
5 of 14
No
No
5 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
0  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Xenopus tropicalis (Western clawed frog) (57)
9 of 13
Yes
Yes
4 of 13
No
No
4 of 13
No
No
3 of 13
No
No
2 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
Danio rerio (Zebrafish) (68)
12 of 14
Yes
Yes
5 of 14
No
No
5 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (45)
5 of 14
Yes
No
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (49)
11 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (140)
8 of 13
Yes
Yes
8 of 13
Yes
Yes
8 of 13
Yes
Yes
7 of 13
No
No
7 of 13
No
No
6 of 13
No
No
4 of 13
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Yes
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No
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No
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No
Saccharomyces cerevisiae (Brewer's yeast) (14)
4 of 13
Yes
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
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No
No
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Yes
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Yes
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No
No
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No
No
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No
No
1 of 13
No
No
Schizosaccharomyces pombe (Fission yeast) (13)
8 of 12
Yes
Yes
1 of 12
No
Yes
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
Yes
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Hrb27C. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (56)
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Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Evidence
    References
    Potential Models Based on Orthology ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 2 )
    Disease Associations of Human Orthologs (via DIOPT v9.1 and OMIM)
    Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
    Homo sapiens (Human)
    Gene name
    Score
    OMIM
    OMIM Phenotype
    DO term
    Complementation?
    Transgene?
    Functional Complementation Data
    Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
    Interactions
    Summary of Physical Interactions
    Interaction Browsers

    Please see the Physical Interaction reports below for full details
    RNA-protein
    Physical Interaction
    Assay
    References
    protein-protein
    Physical Interaction
    Assay
    References
    Summary of Genetic Interactions
    Interaction Browsers

    Please look at the allele data for full details of the genetic interactions
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    External Data
    Subunit Structure (UniProtKB)
    Interacts with sqd; the interaction is RNA-dependent and may be specific for sqd isoform A/sqdA (PubMed:15056611). Interacts with otu; the interaction is RNA-independent (PubMed:15056611).
    (UniProt, P48809 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    FlyBase
    External Links
    External Data
    Linkouts
    KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2L
    Recombination map
    2-23
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    27C4-27C4
    Limits computationally determined from genome sequence between P{lacW}xl6k00230&P{EP}Hrb27CEP748 and P{PZ}smt304841&P{PZ}smt304493
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    27C4-27C5
    (determined by in situ hybridisation)
    27C-27C
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (23)
    Genomic Clones (23)
    cDNA Clones (383)
     

    Please Note This section lists cDNAs and ESTs that fall within the genomic extent of the gene model, which may include cDNAs and ESTs of genes within introns, or of overlapping genes. Please see JBrowse for alignment of the cDNAs and ESTs to the gene model.

    cDNA clones, fully sequenced
    BDGP DGC clones
    Other clones
      Drosophila Genomics Resource Center cDNA clones

      For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.

      cDNA Clones, End Sequenced (ESTs)
      Other clones
      RNAi and Array Information
      Linkouts
      DRSC - Results frm RNAi screens
      Antibody Information
      Laboratory Generated Antibodies
      Commercially Available Antibodies
       
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          RNAi screen using dsRNA made from templates generated with primers directed against this gene results in chromosome misalignment on the metaphase spindle when assayed in S2 cells in the presence of Cdc27 dsRNA. This phenotype cannot be observed when the screen is performed without Cdc27 dsRNA.

          Hrb27C mutants disrupt the formation of particles in the oocyte cytoplasm containing stau protein.

          In germline clones mutant for Hrb27C, osk mRNA and stau fail to localise to the posterior of the oocyte, although bcd mRNA localises normally at the anterior.

          Identification: in a germline clone screen to identify genes involved in localisation of the bcd, osk and grk mRNAs.

          Hrb27C is required for a novel step in the localisation of osk mRNA.

          Hrb27C plays a critical role in the inclusion of mI and mII microexons in Ubx mRNAs.

          Identified as a 50kD protein that binds to a discrete translational derepressor element located at the 5' end of the osk transcript. Hrb27C protein also binds to the Bruno-response element (BRE) at the 3' end of the osk transcript.

          Identification: Enhancer trap expression pattern survey for loci expressed in the ring gland.

          Hrb27C plays a functional role in P\T IVS3 splicing inhibition.

          Sxl does not form an immunoprecipitable complex with Hrb27C.

          Psi is a soma-specific alternative splicing factor that functions with general factors, including Hrb27C (a 50kD RNA-binding protein), to regulate germ line specific P-element expression. Hrb27C binds specifically to intron 3 (IVS3) 5' exon splice site.

          A sequence comparison and numerical analysis of the RRM-containing (RNA recognition motif) proteins suggests that functionally related RRM-containing proteins have significant sequence similarities in their RRMs.

          The distribution of the hnRNP protein Hrb27C on nascent transcripts from polytene chromosomes has been studied.

          Protein has been isolated by its ability to bind single-stranded DNA.

          An Hrb27C cDNA clone has been isolated and sequenced.

          Biochemical experiments support a mechanism for somatic inhibition of P-element intron 3 (IVS3) splicing in which the binding of a U1snRNP and multiprotein complexes to two exon pseudo 5' splice sites (F1 and F2) prevents U1snRNP binding to the accurate 5' splice site. A 50kD protein, Hrb27C contacts the F2 5' splice site.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: Hrb27C Rbp7

          Source for merge of: Hrb27C linha

          Source for merge of: Hrb27C p50

          Additional comments
          Nomenclature History
          Source for database identify of
          Nomenclature comments
          Etymology
          Synonyms and Secondary IDs (30)
          Reported As
          Symbol Synonym
          Hrb27C/Hrp48
          Hrp48/Hrb27C
          Rbp7
          Name Synonyms
          Heterogeneous nuclear ribonucleoprotein
          Heterogeneous nuclear ribonucleoprotein at 27C
          RNA-binding protein 7
          Secondary FlyBase IDs
          • FBgn0010261
          • FBgn0016665
          • FBgn0019729
          • FBgn0024845
          • FBgn0061493
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 77 )
          Sequence Crossreferences
          NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
          GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
          GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
          RefSeq - A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.
          UniProt/GCRP - The gene-centric reference proteome (GCRP) provides a 1:1 mapping between genes and UniProt accessions in which a single 'canonical' isoform represents the product(s) of each protein-coding gene.
          UniProt/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
          UniProt/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
          Other crossreferences
          AlphaFold DB - AlphaFold provides open access to protein structure predictions for the human proteome and other key proteins of interest, to accelerate scientific research.
          BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
          DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
          EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
          FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
          FlyMine - An integrated database for Drosophila genomics
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          PDB - An information portal to biological macromolecular structures
          Linkouts
          BioGRID - A database of protein and genetic interactions.
          Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
          DroID - A comprehensive database of gene and protein interactions.
          DRSC - Results frm RNAi screens
          Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
          FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
          Flygut - An atlas of the Drosophila adult midgut
          iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
          KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
          MIST (protein-protein) - An integrated Molecular Interaction Database
          References (233)