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Gene Expression Data
Assay Details
Assay
Reference: J:84141 Kondo RP, et al., Development of the cardiac conduction system as delineated by minK-lacZ. J Cardiovasc Electrophysiol. 2003 Apr;14(4):383-91
Assay type: In situ reporter (knock in)
MGI Accession ID: MGI:5509374
Gene symbol: Kcne1
Gene name: potassium voltage-gated channel, Isk-related subfamily, member 1
Reporter: lacZ
Direct Detection
Results
Specimen 1A: embryonic day 8.25; Kcne1tm1Rdn/Kcne1+ (more )
Note: 8 somites.
Structure Level Pattern Image Note
TS13: heart Weak Scattered 1A
TS13: somite Strong 1A
TS13: future brain Weak 1A
TS13: neural tube Present 1A

Specimen 1B: embryonic day 8.5; Kcne1tm1Rdn/Kcne1+ (more )
Note: 11 somites.
Structure Level Pattern Image Note
TS13: heart Present 1B Expression is stronger and covers larger area than that of E8.25.

Specimen 1C: embryonic day 9.0; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS14: outflow tract Present Regionally restricted 1C Expressed in the caudal wall.
TS14: primitive ventricle Present Regionally restricted 1C Expressed in the cranial wall of the distal part of the ventricular loop.
TS14: future brain Strong 1C
TS14: somite Strong 1C

Specimen 2A: embryonic day 9.0; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS14: heart Present Regionally restricted 2A Expressed in the inner curvature.

Specimen 2B: embryonic day 9.0; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS14: common atrial chamber Present Regionally restricted 2B Expressed in the dorsal wall of the right atrium. Expressed in both the inner and outer myocardial wall.
TS14: outflow tract Present Regionally restricted 2B Expressed in the dorsal wall of the outflow tract from the right ventricle. Expressed in the endothelial cells in the cushions within the outflow tract.

Specimen 3A: embryonic day 9.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS15: outflow tract Strong Regionally restricted 3A Expressed in the caudal wall.
TS15: atrioventricular canal Strong Regionally restricted 3A Expressed in the right.
TS15: primitive ventricle Strong Regionally restricted 3A Expressed in the interventricular groove.

Specimen 3B: embryonic day 9.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS15: atrioventricular canal Present Regionally restricted 3B Expressed in the superior wall.

Specimen 3C: embryonic day 9.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS15: heart atrium Present Regionally restricted 3C Expressed in the right and dorsal wall of the right atrium.
TS15: primitive ventricle Present Regionally restricted 3C Expressed in the dorsal wall of the right ventricle and the developing trabeculations.

Specimen 3D: embryonic day 9.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS15: primitive ventricle Present Regionally restricted 3D Expressed in the superior portion of the interventricular groove.
TS15: outflow tract Present Regionally restricted 3D Expressed in the dorsal wall.
TS15: atrioventricular canal Present Regionally restricted 3D Expressed in the right wall at the anterior end close to the ventricle.

Specimen 4A: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: common atrial chamber right part Present Regionally restricted 4A Expressed in the sinuatrial ring.
TS17: outflow tract Present Widespread 4A

Specimen 4B: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: atrioventricular canal Present Regionally restricted 4B Expressed in the atrioventricular ring and the developing atrioventricular node.

Specimen 5A: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: atrioventricular canal Present Regionally restricted 5A Expressed in the muscle just inferior to the atrioventricular cushion and along the junction between the atrioventricular cushion and the ventricle.

Specimen 5B: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: atrioventricular canal Strong Regionally restricted 5B Strong expression in the right wall and weak staining in the left wall.
TS17: primitive ventricle Strong Regionally restricted 5B Expressed in the crest of the muscular ventricular septum.

Specimen 5C: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: atrioventricular canal Very strong Regionally restricted 5C Expressed in the junction between the atrioventricular canal and the right ventricle.
TS17: primitive ventricle Very strong Regionally restricted 5C Expressed in the right side of the ventricular septum. The right ventricular trabeculations are extensively stained.

Specimen 5D: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: atrioventricular canal Strong Regionally restricted 5D Expressed in the junction between the atrioventricular canal and the right ventricle.
TS17: primitive ventricle Strong Regionally restricted 5D Expressed in the right side of the ventricular septum. The right ventricular trabeculations are extensively stained.
TS17: endocardial cushion Present Regionally restricted 5D Expressed in the musculature along the superior atrioventricular cushion.

Specimen 5E: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: outflow tract Present Regionally restricted 5E Expressed throughout the caudal wall of the outflow tract adjacent to the atrioventricular canal.
TS17: primitive ventricle Present Regionally restricted 5E Expression bends around the ventricular groove.

Specimen 5F: embryonic day 10.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS17: outflow tract Present 5F Expressed in the walls.

Specimen 6A: embryonic day 11.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS19: outflow tract Present 6A Expressed in the wall forming an almost complete ring.
TS19: atrioventricular canal Present Regionally restricted 6A Expressed in the walls producing the atrioventricular ring. Expressed in the developing atrioventricular node. Expressed in the trabeculations from both the superior and inferior myocardial walls along the canal.
TS19: interventricular septum Present Regionally restricted 6A Expressed in the walls producing the interventricular ring.

Specimen 6B/C: embryonic day 11.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS19: heart right ventricle Present Non-Uniform 6C , 6B Expressed in right ventricular trabeculations.
TS19: right atrium Weak Regionally restricted 6B Thin staining forms a partial sinuatrial ring.

Specimen 6D: embryonic day 12.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS20: outflow tract Present 6D Expressed in the wall forming a complete ring.
TS20: heart right ventricle Present 6D Expressed in the right ventricular trabeculations, right atrioventricular junction, and right ventricle.
TS20: atrioventricular endocardial cushion Present 6D Expressed in the right atrioventricular junction.

Specimen 6E: embryonic day 12.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS20: outflow tract Present 6E Expressed in the wall forming a complete ring.
TS20: atrioventricular canal Present 6E Expressed in the wall forming a complete ring. Expressed in the developing atrioventricular node.

Specimen 7A: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: heart ventricle Present Regionally restricted 7A Expressed in the superior portion of the ventricular wall.

Specimen 7B: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: interventricular septum Present Regionally restricted 7B Expressed along the crest of the ventricular septum, forming the primordial branching bundles.

Specimen 7C: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: outflow tract Strong Regionally restricted 7C Strong retroaortic staining.
TS21: tricuspid valve Strong Regionally restricted 7C Expressed in the musculature surrounding the developing tricuspid valve.

Specimen 7D: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: atrioventricular canal Present Regionally restricted 7D Expressed in the developing atrioventricular conduction axis and in the right and left atrioventricular rings.

Specimen 8A: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: pulmonary trunk Present Regionally restricted 8A Expressed in the anterior portion of the ring around the pulmonary outflow.

Specimen 8B: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: aorta Present Regionally restricted 8B Expressed in the aorta as a ring.
TS27: mitral valve Present Regionally restricted 8B Expressed in the musculature.
TS27: atrioventricular bundle Present Regionally restricted 8B Expressed along the left branching bundle.
TS27: heart Present Regionally restricted 8B Expressed as an atrioventricular ring.

Specimen 8C: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: atrioventricular bundle Present 8C His bundle.
TS27: outflow tract Present Regionally restricted 8C Expressed in the retroaortic tissue.

Specimen 8D: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: tricuspid valve Present Regionally restricted 8D Expressed along the musculature.
TS27: impulse conducting system Present Regionally restricted 8D Expressed in the conduction axis, which has penetrated into the atrial septum.
TS27: heart Present Regionally restricted 8D Expressed as an atrioventricular ring.

Specimen 8E: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: impulse conducting system Present Regionally restricted 8E Expressed in the atrioventricular conduction axis.
TS27: heart Present Regionally restricted 8E Expressed as an atrioventricular ring.

Specimen 8F: postnatal day 1; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS27: vena cava Strong Regionally restricted 8F Expressed in the musculature at the boundary between the systemic venous tributaries and the right atrium.
TS27: atrium endocardial lining Present Scattered 8F Scattered staining along the endocardial side of the right atrial wall.
TS27: right atrium Present Scattered 8F Scattered staining along the endocardial side of the right atrial wall.

Specimen not shown: embryonic day 11.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS19: heart left ventricle Present

Specimen not shown: embryonic day 13.5; Kcne1tm1Rdn/Kcne1+ (more )
Structure Level Pattern Image Note
TS21: ascending aorta Present Regionally restricted Expressed in the endothelial linings.
TS21: pulmonary artery Present Regionally restricted Expressed in the endothelial linings.


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
12/30/2025
MGI 6.24
The Jackson Laboratory