NABP1

protein-coding

nucleic acid binding protein 1

Gene summary

Single-stranded DNA (ssDNA)-binding proteins, such as OBFC2A, are ubiquitous and essential for a variety of DNA metabolic processes, including replication, recombination, and detection and repair of damage (Richard et al., 2008 [PubMed 18449195]).[supplied by OMIM, Jun 2008]

Previous symbols:
  • OBFC2A
  • NABP1-OT1

MANE transcript

NM_001031716.5

Inheritance

—

ClinVar variants

U:28B:2

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.75

Max pathogenic AF

—

Genomic locus

chr2:191,678,068-191,741,097

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~63.0 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to NABP1 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 28
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001031716.5. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
missense
28
clinvar
1
clinvar
29
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00282030
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 25 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001031716.5RefSeqNP_001026886.16MANE Select
ENST00000425611.9EnsemblENSP00000403683.26MANE Select
NM_001254736.3RefSeqNP_001241665.14Standard
ENST00000307834.9EnsemblENSP00000310819.52Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Gene expression (Transcription)
  • RNA polymerase II transcribes snRNA genes
  • RNA Polymerase II Transcription

Biological Process

  • double-strand break repair via homologous recombination
  • DNA repair
  • cellular response to DNA damage stimulus
  • mitotic cell cycle checkpoint
  • response to ionizing radiation

Molecular Function

  • single-stranded DNA binding
  • RNA binding
  • protein binding

Cellular Component

  • nuclear chromosome, telomeric region
  • nucleus
  • nucleoplasm
  • cytosol
  • SOSS complex

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000425611
Coding exons
6
Length
18592
Individuals with no LoFs
125722
Homozygous LoFs
1
Heterozygous LoFs
25
Defined
125748
p
0.000103
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.03141101110.9920.000005401333
Missense (PolyPhen)2630.7110.8466390
Synonymous1.672538.10.6550.00000177385
Loss of Function0.746810.60.7535.14e-7129

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000900.000087rare
Ashkenazi Jewish0.000100.000099rare
East Asian00.0absent
Finnish0.0000470.000046rare
European (Non-Finnish)0.000120.00011rare
South Asian0.000230.00016rare
Other0.000500.00049rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Component of the SOSS complex, a multiprotein complex that functions downstream of the MRN complex to promote DNA repair and G2/M checkpoint. In the SOSS complex, acts as a sensor of single-stranded DNA that binds to single-stranded DNA, in particular to polypyrimidines. The SOSS complex associates with DNA lesions and influences diverse endpoints in the cellular DNA damage response including cell-cycle checkpoint activation, recombinational repair and maintenance of genomic stability. Required for efficient homologous recombination-dependent repair of double-strand breaks (DSBs) and ATM-dependent signaling pathways. {ECO:0000269|PubMed:19605351, ECO:0000269|PubMed:19683501}.;

Recessive Scores

pRec
0.0857

Intolerance Scores

RVIS EVS
-0.3
RVIS percentile EVS
32.62

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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