IGBP1

Chr XXLR

immunoglobulin binding protein 1

Also known as: ALPHA-4, IBP1, MRXS28, alpha4

The proliferation and differentiation of B cells is dependent upon a B-cell antigen receptor (BCR) complex. Binding of antigens to specific B-cell receptors results in a tyrosine phosphorylation reaction through the BCR complex and leads to multiple signal transduction pathways. [provided by RefSeq, Jul 2008]

OMIMResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

?Corpus callosum, agenesis of, with impaired intellectual development, ocular coloboma and micrognathiaMIM #300472
XLR

Clinical highlights

Gene-disease validity (ClinGen)
corpus callosum agenesis-intellectual disability-coloboma-micrognathia syndrome · XLDisputedevidence questions this relationship
Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Curated gene-level mechanism — a prior for triage, not a per-variant call.
0
Active trials
4
Pubs (1 yr)
P/LP submissions
P/LP missense
0.24
LOEUF· LoF intol.
Mechanism

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?
0.24LOEUF
pLI 0.983
Z-score 3.26
OE 0.00 (0.000.24)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?
1.30Z-score
OE missense 0.68 (0.570.81)
90 obs / 132.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.00 (0.000.24)
00.351.4
Missense OE?0.68 (0.570.81)
00.61.4
Synonymous OE?1.16
01.21.6
LoF obs/exp: 0 / 12.4Missense obs/exp: 90 / 132.2Syn Z: -0.87

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

IGBP1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →